Quantum A-SERIES User Manual

81-81800-03 A01

A-Series FTP File Server

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Quantum A-Series FTP File Server User’s Guide, 81-81800-03 A01, July 2008.

Quantum Corporation provides this publication “as is” without warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability or fitness for a particular purpose. Quantum Corporation may revise this publication from time to time without notice.

Your right to copy this manual is limited by copyright law. Making copies or adaptations without prior written authorization of Quantum Corporation is prohibited by law and constitutes a punishable violation of the law.

TRADEMARK STATEMENT

Quantum, DLT, DLTtape, The Quantum Logo, and The DLTtape Logo are all registered trademarks of Quantum Corporation. SuperLoader, SDLT, and Super DLTtape are trademarks of Quantum Corporation.

Mac and Mac OS are trademarks of Apple Inc., registered in the U.S. and other countries.

Other trademarks may be mentioned herein which belong to other companies.

Preface ix

Chapter 1 Introduction 1

Overview............................................................................................................. 1

A-Series Tape Drives.................................................................................. 1

Chapter 2 Using the FTP File Server 3

Getting Started: Setting Up the Network ....................................................... 4

Configuring the Tape Drive...................................................................... 4

Managing the Tape Drive Using a Web Browser ....................................... 13

The Java Plug-in........................................................................................ 13

Connecting to the Drive........................................................................... 14

Admin Menu Login.................................................................................. 17

Using the Admin Menu Setup Page ..................................................... 19

Using the FTP Client Configuration Tab Settings .............................. 24

List of Servers Management.................................................................... 25

Setting Client Login Information ........................................................... 26

Multiuser Connection .............................................................................. 28

FTP File Transfers ............................................................................................ 31

A-Series FTP Client ................................................................................. 31

Quantum A-Series FTP File Server User’s Guide iii

FTP Client Tab........................................................................................... 33

File Panes ................................................................................................... 34

File Transfers .............................................................................................35

Transfer Queue Tab.................................................................................. 36

Transfer Summary Tab ............................................................................ 39

Duplicate File Name................................................................................. 40

Information Within the Panes................................................................. 41

Contextual Menu ...................................................................................... 42

Partial Restore ........................................................................................... 46

Creating MXF Header Files..................................................................... 51

File System Limitations............................................................................ 56

A-Series Best Practices..................................................................................... 57

Networking Considerations.................................................................... 57

When Directory Updates Occur ............................................................. 57

File Naming Considerations ................................................................... 58

Third-Party FTP Clients........................................................................... 59

Apple Resource Forks and the A-Series................................................ 59

FTP Session Timeouts .............................................................................. 60

Lossless Data Compression..................................................................... 61

Taking the A-Series on the Road ............................................................61

When All Else Fails................................................................................... 62

Additional Admin Menu Pages..................................................................... 64

Date & Time............................................................................................... 64

Change Admin Password....................................................................... 66

Versions...................................................................................................... 67

Update Server Firmware .........................................................................68

Update Drive Firmware........................................................................... 69

Diagnostic Log .......................................................................................... 70

Reboot......................................................................................................... 72

Appendix A Troubleshooting 73

Resetting System Defaults .............................................................................. 74

SDLT 600A Drive Reset............................................................................ 74

LTO-3A Drive Reset ................................................................................. 75

FTP File Transfer Troubleshooting................................................................ 76

Root User.................................................................................................... 76

In Case of a Power Failure....................................................................... 76

In Case of a Write Error ........................................................................... 77

Write Protect Cartridge........................................................................... 77

MXF Troubleshooting .............................................................................. 77

Network Drive Limitation....................................................................... 78

Quantum A-Series FTP File Server User’s Guide iv

Summary Tab ............................................................................................78

Built-in FTP Client Troubleshooting...................................................... 78

FTP Server Troubleshooting ................................................................... 80

Multiple Drive Environments................................................................. 81

Appendix B FTP Commands 82

Supported FTP Commands ............................................................................82

Standard Commands (RFC959) .............................................................. 83

RFC775 Commands.................................................................................. 89

SITE Commands ....................................................................................... 90

Commands Not Normalized (Internet Draft)....................................... 97

Glossary 98

Quantum A-Series FTP File Server User’s Guide v

Figures

Figure 1 IP Configuration Procedure........................................................ 5

Figure 2 Mac OS X System Network......................................................... 6

Figure 3 Mac OS X System Ethernet Network ........................................ 7

Figure 4 Mac OS X 10.4 IP Address Settings ........................................... 8

Figure 5 Mac OS X 10.5 IP Address Settings ........................................... 8

Figure 6 Local Area Connection Properties ............................................. 9

Figure 7 Internet Protocol (TCP/IP) Properties .................................... 10

Figure 8 Certificate of Security ................................................................ 13

Figure 9 Java Virtual Machine Plug-in ................................................... 14

Figure 10 FTP Client Login Dialog............................................................ 15

Figure 11 A-Series Home Page .................................................................. 16

Figure 12 Status Page .................................................................................. 17

Figure 13 Admin Menu Login Page.......................................................... 18

Figure 14 Management Menu After Login .............................................. 18

Figure 15 System Defaults.......................................................................... 19

Figure 16 Setup Window ............................................................................ 19

Figure 17 Configuration Tab Display ....................................................... 24

Quantum A-Series FTP File Server User’s Guide vi

Figure 18 FTP Server Connect Error Window.........................................26

Figure 19 FTP Connection Settings ........................................................... 27

Figure 20 Encoding Schemes...................................................................... 28

Figure 21 FTP Server Root User Error Window...................................... 29

Figure 22 Bonjour Bookmarks.................................................................... 32

Figure 23 A-Series FTP Client .................................................................... 33

Figure 24 FTP Client Tab Display.............................................................. 34

Figure 25 Transfer Progress........................................................................ 37

Figure 26 Stop Transfer Selection .............................................................. 38

Figure 27 Transfer Summary...................................................................... 39

Figure 28 File Exists Window..................................................................... 40

Figure 29 Additional Metadata Columns................................................. 41

Figure 30 Audio Essence Metadata........................................................... 41

Figure 31 Contextual Menu........................................................................ 42

Figure 32 Renaming Files or Folders......................................................... 42

Figure 33 Delete Window ...........................................................................43

Figure 34 Retrieving Files From the Trash Folder................................... 44

Figure 35 Move File Window..................................................................... 44

Figure 36 Create Folder Window .............................................................. 45

Figure 37 MXF Information of D10 PAL Essence.................................... 46

Figure 38 MXF Information of DV NTSC Essence.................................. 46

Figure 39 Partial Restore OP1A Window.................................................47

Figure 40 Partial Restore OPATOM Window ......................................... 48

Figure 41 OPATOM Partial ........................................................................ 49

Figure 42 Partial Restore Successful Window ......................................... 49

Figure 43 Partial File List ............................................................................ 50

Figure 44 Partial File List in OPATOM..................................................... 51

Figure 45 Create Header Window............................................................. 52

Figure 46 Eject Tape Window .................................................................... 52

Quantum A-Series FTP File Server User’s Guide vii

Figure 47 Eject Tape Error Window.......................................................... 53

Figure 48 Tape Information........................................................................ 54

Figure 49 Erase Tape Window................................................................... 54

Figure 50 Information on Software Licenses Window........................... 55

Figure 51 Date & Time ................................................................................ 64

Figure 52 Change Admin Password ......................................................... 66

Figure 53 Versions Page.............................................................................. 67

Figure 54 Update Server Firmware........................................................... 68

Figure 55 Update Drive Firmware ............................................................ 69

Figure 56 Diagnostic Log ............................................................................ 70

Figure 57 Diagnostic Log Generating .......................................................71

Figure 58 Diagnostic Log Complete.......................................................... 71

Figure 59 Reboot Confirmation Window ................................................. 72

Figure 60 Reboot in Progress...................................................................... 72

Figure 61 Power Failure Error Message ................................................... 76

Figure 62 Write Error Window .................................................................. 77

Quantum A-Series FTP File Server User’s Guide viii

Preface

This document serves as an easy-to-use information source to familiarize Quantum customers and systems professionals with the A-Series FTP file server.

Audience

Purpose

Quantum A-Series FTP File Server User’s Guide ix

The primary audience for this document consists of end users installing and using the A-Series standalone tape drives (tabletop or rackmount) or configured as part of the SuperLoader 3A Series autoloader.

This document provides information about using the A-Series FTP file server including:

• Accessing the FTP file server

• Managing the A-Series tape drive

•FTP file transfers

• FTP client commands

Document Organization

This document is organized as follows:

Notational Conventions

Overview

Chapter 1

1Introduction

Data backup is essential to protect irreplaceable information. Backing up data to magnetic tape is an easy, cost-efficient method used by many small and medium businesses.

A-Series Tape Drives 1

Quantum A-Series FTP File Server User’s Guide 1

The A-Series drives are designed to assist video professionals meet their needs in storing and archiving large video files. The drives store and share all forms of computer data including high definition and standard definition video files for video production and archiving.

Network attachment is supported by a Gigabit Ethernet interface and a built-in FTP client application providing easy file-based operations, such as transferring multiple video files between a drive and any networked server.

The A-Series drives support Material eXchange Format (MXF) files for storage, retrieval, and partial restore of video files, providing the benefits of file-based data tape storage and the accessibility of video tape.

Chapter 1 Introduction

Overview

Each media cartridge contains a table of contents providing a hard disk drive-like directory to the tape’s file system, allowing complete access to different parts of the tape containing data blocks that make up the files.

The table of contents (TOC) is written to the drive by the built-in server whenever it changes and is stored in a reserved area of the tape upon disconnect of each FTP session.

Quantum A-Series FTP File Server User’s Guide 2

Chapter 2

2Using the FTP File Server

This chapter describes how to access and use the Quantum A-Series FTP File Server for FTP file transfers.

• Getting Started: Setting Up the Network remote access of the A-Series FTP file server.

• M

anaging the Tape Drive Using a Web Browser provides

information about connecting to the drive, the FTP Server Setup window, the FTP Client Configuration tab, FTP File Transfers, and A-Series Best Practices.

• Using the Admin Menu Setup Page

• Using the FTP Client Configuration Tab Settings

• FTP File Transfers

• A-Series Best Practices

• Additional Admin Menu Pages provides information about setting the date and time, product versions used in the A-Series FTP server, instructions on how to update the server and tape drive firmware, using the diagnostic log, and how to reboot the tape drive for a system restart.

Refer to Appendix A

Appendix B

for information about the FTP client commands.

for FTP troubleshooting information and

provides information on

Quantum A-Series FTP File Server User’s Guide 3

Getting Started: Setting Up the Network

The A-Series tape drive is configured and managed through Web pages accessible by Internet browser software (Internet Explorer®, Safari™, Netscape, or Firefox) installed on the host computer.

Chapter 2 Using the FTP File Server

Getting Started: Setting Up the Network

Configuring the Tape Drive 2

There are several options available when configuring the A-Series tape drive within your network. Follow the procedure outlined on the diagram presented in figure 1

Additional information important for a complete setup procedure may be found in Using the Admin Menu Setup Page will achieve best performance if you can keep the A-Series drive on it’s own network. For example, many modern computers have dual Ethernet ports and one can be dedicated to the A-Series.

Note: As of Version 3.0, A-Series drives support Bonjour® (also

known as zeroconf) which automatically advertises the host name of the drive on the network. This allows browsers to automatically determine the drive’s IP address and greatly simplify network setup.

Depending upon the network and IP configuration of the host computer, it will be necessary to initially reconfigure the IP address and subnet mask of the host computer in order to communicate and recognize the A-Series tape drive on a network.

Please contact your network administrator if you need further assistance in configuring the A-Series tape drive for use on an internal network.

on page 19. Note that you

Quantum A-Series FTP File Server User’s Guide 4

Figure 1 IP Configuration

Done

Conﬁgure

Computer to

10.10.10.9

Open Browser to

http://10.10.10.10

to Access A-Series

Select Admin

Menu > Login,

Password: admin

Select Admin Menu >

Setup and conﬁgure

IP address

Start

A-Series on

it's own

network?

Leave A-Series on

10.10.10.10

yes

Is Network conﬁgured for DHCP?

yes

Conﬁgure A-Series

for DHCP

Obtain valid IP and

netmask for

A-Series

from network admin

Conﬁgure A-Series

as advised

Leave Computer at

10.10.10.9

Reconﬁgure

Computer to

previous settings

Procedure

Chapter 2 Using the FTP File Server

Getting Started: Setting Up the Network

Quantum A-Series FTP File Server User’s Guide 5

Chapter 2 Using the FTP File Server

Network

Getting Started: Setting Up the Network

Mac OS® X IP Settings Configuration 2

Set an IP address:

Figure 2 Mac OS X System Network

1 From the blue Apple® menu, select

2 Select

Network.

System Preferences.

3 Highlight the Built-in Ethernet item and then select the Configure

button.

Quantum A-Series FTP File Server User’s Guide 6

Figure 3 Mac OS X System

Network

Ethernet Network

Chapter 2 Using the FTP File Server

Getting Started: Setting Up the Network

4 Select Manually in the Configuration IPv4 drop-down box and enter

the IP address in the

IP Address dialogue box.

Quantum A-Series FTP File Server User’s Guide 7

Figure 4 Mac OS X 10.4

IP address settings

IP Address Settings

Chapter 2 Using the FTP File Server

Getting Started: Setting Up the Network

Figure 5 Mac OS X 10.5 IP Address Settings

Quantum A-Series FTP File Server User’s Guide 8

Chapter 2 Using the FTP File Server

Select the TCP/IP connection

Getting Started: Setting Up the Network

Windows® IP Settings Configuration 2

The following steps can be used to setup and communicate with the A-Series tape drive:

1 The host IP configuration may have to be modified to communicate

with the drive.

Figure 6 Local Area Connection Properties

The factory default IP address for the tape drive is set to

2 Go to

3 Go to

Network Connections and click the LAN icon.

Internet Protocol (TCP/IP) connection and click Properties (see

figure 6

10.10.10.10.

4 In the General dialogue box (see figure 7), select the radio button Use

the following IP address

•In the

IP address box, enter 10.10.10.1

•In the Subnet mask box, enter 255.255.255.0

5 Click OK.

Quantum A-Series FTP File Server User’s Guide 9

Figure 7 Internet Protocol (TCP/IP) Properties

Chapter 2 Using the FTP File Server

Getting Started: Setting Up the Network

6 Launch a Web browser (Internet Explorer, Netscape, or Firefox).

Note: For Linux — Configure using the following:

ifconfig eth0:1 10.10.10.9

For Mac — Configure using System Preferences, Built-In

Ethernet,

and Manually 10.10.10.10.

Quantum A-Series FTP File Server User’s Guide 10

Chapter 2 Using the FTP File Server

Getting Started: Setting Up the Network

Linux IP Settings Configuration 2

To configure the IP address of the first Ethernet port on a Linux system from a terminal window, type the following command:

ifconfig eth0:1 10.10.10.9 up

The following is a sample Linux terminal session showing local IP settings, an FTP session, and a Telnet session with an A-Series drive.

[user@host ~]$ su -l Password: [root@host ~]# ftp 10.10.10.10 ftp: connect: Connection timed out ftp> quit [root@host ~]# ifconfig eth0:1 10.10.10.9 up [root@host ~]# ftp 10.10.10.10 Connected to 10.10.10.10. 220---------- Welcome to SDLT 600A ---------220-You are user number 1 of 1 allowed. 220-Local time is now 00:52. Server port: 21. 220 You will be disconnected after 15 minutes of inactivity. 500 This security scheme is not implemented 500 This security scheme is not implemented KERBEROS_V4 rejected as an authentication type Name (10.10.10.10:root): 331 User root OK. Password required Password: ***** 230-This server supports FXP transfers 230 OK. Current directory is / Remote system type is UNIX. Using binary mode to transfer files. ftp> quit [root@host ~]# telnet 10.10.10.10 Trying 10.10.10.10... Connected to 10.10.10.10 (10.10.10.10). Escape character is '^]'. SDLT 600A Interface Password: ***** 0 SDLT 600A Management ->

Quantum A-Series FTP File Server User’s Guide 11

Chapter 2 Using the FTP File Server

Getting Started: Setting Up the Network

1 SDLT 600A Client -> r Restore all previous values s Save all changes b Reboot q Logoff Enter option: q Connection closed by foreign host. [root@host ~]# ifconfig eth0:1 down [root@host ~]#

Quantum A-Series FTP File Server User’s Guide 12

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

The only software required on your system is any Internet browser and a Java™ Plug-in. The allows the execution of Java applets.

Java Plug-in is the virtual machine software that

The Java Plug-in 2

Figure 8 Certificate of Security

Each A-Series tape drive serves a Web page containing an embedded Java FTP client. The Java FTP client needs the Java Virtual Machine to run. This

Java Plug-in is provided by Sun Microsystems.

Upon user loading of the A-Series Web page, the Java FTP client will install immediately. When you load the Java FTP client for the first time, a display window may ask you to download and install the Java plug-in. If you need that plug-in you can just follow the instructions on the screen or go to www.java.com

If you have

Environment

Java Plug-in version 1.4.2_xx or later, or the Java Runtime

version 1.4.2_xx or later installed on your computer, you

to download it.

should not need to download new software. The plug-in should activate on your Web browser automatically once installed.

Since the Java FTP client accesses the local directories of your computer, a certificate of security is required. When the Java FTP client is loaded, the

Java Plug-in displays a window prompting you to accept our certificate of

security.

Quantum A-Series FTP File Server User’s Guide 13

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

Connecting to the Drive 2

Figure 9 Java Virtual Machine Plug-in

The A-Series tape drive startup page is available by entering the drive’s IP address (or local host name if using Bonjour) in the address bar of a Web browser.

Upon successful connection to the A-Series server, the Web page will load and the Java virtual machine running the FTP client will launch displaying the following screen.

Note: You may see a red "x" instead of this screen - this indicates a

Java issue, but it may often be easily resolved by quitting and restarting your browser.

The first time connecting to a drive, the user is presented with a login dialog box (see figure 10

password.

Quantum A-Series FTP File Server User’s Guide 14

). Type the user name: root and the password:

Figure 10 FTP Client Login Dialog

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

The Login and Password information is retained for each IP address on the local computer.

Note: If you type incorrect login information you will not be able to

access the FTP client until it is corrected. Refer to F

TP Connection Settings Configuration on page 27 for directions

on resetting client login information.

Quantum A-Series FTP File Server User’s Guide 15

Figure 11 A-Series Home Page

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

Type in the IP address of the drive (default http://10.10.10.10) in the address line of the browser. The start window (

figure 11

FTP Client) displays (see

Quantum A-Series FTP File Server User’s Guide 16

Admin Menu Login 2

Figure 12 Status Page

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

1 From the Admin Menu, select Login (see figure 13).

Note: The three green status lights (

Drive, Media, and Server) at

the top of the display indicate an operational system with no errors. Detailed status information is available on the

Status window (see figure 13).

2 In the Password box provided (see figure 13), enter admin.

Once the correct password is entered, the fully populated as shown in figure 14

3 For network configuration settings, select

the

Admin Menu.

Quantum A-Series FTP File Server User’s Guide 17

Admin Menu options are

Setup (see figure 16) from

Figure 13 Admin Menu Login Page

Figure 14 Management Menu After Login

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

Quantum A-Series FTP File Server User’s Guide 18

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

Using the Admin Menu Setup Page 2

Figure 15 System Defaults

Figure 16 Setup Window

The values shown in the figures that follow are samples and may not represent the current values set in the A-Series tape drive.

Name Password/Setting

Static IP address 10.10.10.10

Netmask 255.255.255.0

Admin Menu default password admin

FTP Client login root

FTP Client default password password

Quantum A-Series FTP File Server User’s Guide 19

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

Use DHCP 2

Check this box to enable DHCP.

If enabled, the A-Series tape drive attempts to get its network configuration from a DHCP server when it boots. If the device fails to obtain a DHCP address, the value from the IP Address box below is used.

Note: If DHCP is enabled, you must remember the host name and

can use it via Bonjour to find the address assigned by the DHCP server. Failure to find the IP address prevents you from accessing the server. Please note that it can take several minutes for the DHCP server to return with an address.

Hostname

Enter a name for the tape drive (the default is A-Series). This can be a user friendly name but may not include spaces. The name appears as part of the IQN and will also be passed to the DHCP Server for dynamic DNS updates. For more information, contact your network administrator.

The hostname is also used for the drive’s Bonjour advertised network name. Rather than using the IP address in the browser address bar, users can reach the drive by typing lower case followed by

hostname.local. (where hostname is all

.local.) in the address bar.

Note: When installing multiple drives, be sure each tape drive has a

unique IP address and host name.

IP Address

For a manual IP address configuration (DHCP disabled), enter a valid IP address here according to the network configuration. For more information, contact your network administrator.

Note: The IP address must be unique; it cannot be in use by another

device on the network. Select an IP address that is appropriate for your network environment.

Quantum A-Series FTP File Server User’s Guide 20

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

Netmask 2

Enter the subnet mask for your particular network here. It is advisable to enter a fallback subnet mask when using DHCP in case the DHCP server is unavailable. The default Netmask of networks. For more information, contact your network administrator.

255.255.255.0 will work for most

Broadcast Address

Enter the broadcast address for your particular network here. For more information, contact your network administrator.

Default Gateway

You can enter the IP address of the default gateway for your particular network. Enter a default gateway only if you wish to connect from a network. For more information, contact your network administrator or see other third-party technical references for more details.

SNMP Manager

A Simple Network Management Protocol (SNMP) Manager or SNMP Service is an application that performs the operational roles of generating requests to modify and retrieve management information, and receiving the requested information and trap-event reports that are generated by the SNMP agent. Enter an SNMP address.

SNMP traps for tape alerts are sent after each 1 GB of transfer. They are checked periodically (whether a client is connected or not) when no data is transferring.

FTP Server Timeout (minutes)

Timeout values can be set to automatically disconnect and update the Table of Contents after a period of no activity for the FTP server (and the built-in FTP client, see Configuration tab settings in figure 17

The FTP server timeout value is set here. The default timeout value is 15 minutes. To avoid disconnect issues, do not set to less than 15 minutes. A

Quantum A-Series FTP File Server User’s Guide 21

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

timeout setting of 60 minutes or longer is recommended for SuperLoader 3A Series systems.

In the event the FTP server times out, the error message

connection abort: socket write error

is displayed at the FTP client.

Software caused

Note: In some system configurations, it may be necessary to increase

timeout settings if this error is encountered frequently.

FTP Server Root Password

The password for a root user connection can be set using the FTP Server

root Password.

password is

The default login for root user connection is root and

password. After setting it, and clicking Update, the A-Series

tape drive must reboot to change the password.

Enable Jumbo Frames

For Gigabit ethernet networks, you can significantly increase the performance of your tape drive by enabling jumbo frames. Your host computer and all switches and routers in the network path must also support (and have enabled) jumbo frames. Disable this feature if you experience problems storing or retrieving files.

Caution: Before you enable this feature, ensure that your network

supports jumbo frames. If a single network component between the A-Series device and the host PC does not support jumbo frames, you may be unable to access the drive (or transfer speed performance may be severely degraded) after enabling this feature.

Enable Syslog Messages

If you encounter problems with your A-Series tape drive, setting this flag can generate useful information for the Quantum Customer Support team. Once enabled, simply perform the task causing problems and send the resulting log to Quantum Customer Support.

Note: In Server v3.0.0 we recommend leaving this box checked.

Quantum A-Series FTP File Server User’s Guide 22

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

Disable Bonjour 2

Bonjour is a facility which advertises the drive's hostname over the local area network and should never cause problems. However, this check box is provided to disable this feature if needed due to your unique networking requirements. For more information see A-Series FTP Client on page 31.

Mac OSX systems come with Bonjour enabled and all Windows systems which have had iTunes installed also support Bonjour. To add Bonjour to Windows systems that do not have iTunes, go to:

http://www.apple.com/support/downloads/bonjourforwindows.html

Bonjour hostnames also work with Linux and Unix systems which have

zeroconf configured.

Update Button

The user must select the Update button and then reboot the drive as noted in the resulting message for any changes to this page to take effect. Reboot by selecting the

OK in the resulting dialog.

Reboot item in the left column list and confirming

Quantum A-Series FTP File Server User’s Guide 23

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

Using the FTP Client Configuration Tab Settings 2

Figure 17 Configuration Tab Display

The Configuration tab contains four columns (see figure 17). The left column allows you to manage the list of servers. The next three columns (

Columns to show, File data to extract, and FTP Client options) are

configuration options for metadata and FTP client parameters.

Quantum A-Series FTP File Server User’s Guide 24

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

List of Servers Management 2

The first time you connect to any FTP server, the A-Series client prompts you for the login and password to connect to that FTP server. The login name and password you provide are stored with the IP address on the local computer and appear in the FTP Connection Settings column.

Root User Connection

The default login for root user connection is root and password is

password. This server is the first added in the list of servers. The

password for root user connection can be changed from this default in the

Setup page (see Managing the Tape Drive Using a Web Browser) using

the

New root's password (the user name for the login with file transfer

privileges must always be

root).

Guest User Connection

The login for guest user connection is guest and password is guest. The password for guest user cannot be set in the

Setup page.

Note: The built-in A-Series FTP server does not support anonymous

connections. Only a root user (password is to five guest users (password is

guest) are supported.

password) and up

Connecting to a New Server

You can connect to a new server by typing that server's IP address into the browser address bar or simply update the list with its IP address, login, and password; then click select it and click

Remove.

Add. To remove a server from the list,

Note: The FTP server serving the current Web page was

automatically added to this list when you first connected as

Within the

described in M

FTP Client tab, choose the name of the server you want in the

anaging the Tape Drive Using a Web Browser.

combo box on the top of a pane.

Note: Your list of servers is saved locally on your computer.

Quantum A-Series FTP File Server User’s Guide 25

Figure 18 FTP Server Connect Error Window

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

If a remote server cannot be connected, the following window displays.

Setting Client Login Information 2

Each FTP server to which you have connected appears in the column by

loginname@IPaddress:portnumber (default for any A-Series will be root@10.10.10.10:21). This name also appears whenever you are

connected at the top of the column listing that server's contents in the FTP client.

If you have several FTP servers it is good practice to name them something useful using the save it (see figure 17

If you mistyped either the user

Name text box and select the Apply button to

will not be able to connect to your FTP Server without correcting these entries. That information can be fixed using this

FTP Connection Settings

column.

First select the FTP server in the column to highlight it and then retype the information to be amended below in the boxes and finally select the

Apply button to save your changes.

Quantum A-Series FTP File Server User’s Guide 26

Figure 19 FTP Connection Settings

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

FTP Connection Settings Configuration 2

Name — identifier of the FTP server automatically supplied but may be

any user typed text value

IP Address — network IP address of the FTP server

Password —password to the FTP server

Port — port of the FTP server: FTP server ports are by definition port 21;

this value should only be changed for unusual FTP servers which operate on other ports

Quantum A-Series FTP File Server User’s Guide 27

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

Figure 20 Encoding Schemes

Multiuser Connection 2

Encoding

— Specifies the encoding scheme of a connection in order to support FXP transfers between two servers with different encoding schemes. All encoding schemes available from the Java Runtime Environment (JRE) — even those that do not work with the A-Series FTP server — are displayed in order to work with servers that would support them (see figure 20 servers in cross platform environments)

). The default is UTF-8 (this will work best for A-Series

The system allows six users to be logged on at a time to the A-Series tape drive. Although six users may be logged on, only three root users can connect at a time from a single IP address. All other users must be logged in as user:

guest, password: guest. A root user can operate all the features

of the A-Series, while the guest user can only read the cartridge directory (file system table of contents).

Note: Multiple root user connections allow a single workstation to

connect both through the Web FTP client and other means such as through the file system (i.e. on a Mac OS, through the

Go>Connect to Server... menu item). Users may experience

errors if such connections attempt simultaneous actions.

When a disconnection of all the root connections from the A-Series occurs (e.g. by ejecting the tape or by disconnecting), the tape rewinds if the file system table of contents has been modified since the last connection. You cannot reconnect as root to the server until the directory update is completed. A guest connection is allowed.

Quantum A-Series FTP File Server User’s Guide 28

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Managing the Tape Drive Using a Web Browser

Several FTP commands are not allowed for a:

• Guest connection

• ACKNOWLEDGE ERROR, DELE, MKD, RMD, RETR, STOR, RNTO, SITE DELE, SITE EJECT, SITE ERASE, SITE HEADER, SITE PARTIAL, SITE RELEASEMEDIA, SETMEDIUMID

• Root connection while another root transfers on the same path

• DELE, RMD, RETR, STOR, RNTO, SITE DELE, SITE EJECT, SITE ERASE, SITE RELEASEMEDIA, SITE SETMEDIUMID

Note: When several root users are connected, be aware that all

operations are not allowed in parallel at the same time.

Note: If three root users are already connected, and you try to

connect as a root, the following FTP error window displays (see figure 21

Figure 21 FTP Server Root User Error Window

Columns to show 2

These checkboxes specify what you want to see in the columns of the panes (

FTP Client tab) in the list of files.

File data to extract

These check boxes specify what information you want to extract when you select the

Quantum A-Series FTP File Server User’s Guide 29

File properties on the MXF files. You can click File properties in

Contextual menu.

Chapter 2 Using the FTP File Server

Managing the Tape Drive Using a Web Browser

FTP Client Options 2

Font name — Specifies the font used in the FTP client lists and reports.

The default is

Arial (this font does not allow for display of Japanese

characters).

Font size — Specifies the font used in the FTP client lists and reports size

of the character policy. The default is

List details— Specifies whether (show) or not (hide) hidden files appear

12.

in FTP server lists and in the transfer list.

You can set two connection specifications:

•

Buffer size — Specifies the size in bytes of the buffers used by the FTP

client to send or receive data on the network.

65536 bytes is selected

by default. You can modify the buffer size by entering a new value after selecting the current value in the dialog box.

Note: This option has no effect on other servers not using this

application.

The optimal file size is

65,536 bytes, but you may also have to

configure the settings on your network card to forward blocks of 65,536 bytes on the network. Ensuring that these two settings are set is the only way to have the best transfer rate.

•

Timeout (sec) — Specifies the timeout of the built-in FTP client

session in seconds. The default value is

900 seconds (15 minutes). The

session is disconnected after the timeout occurs.

Note: In the event the FTP client times out, the error message

timed out

is displayed at the FTP client. In some systems it may

Read

be necessary to set longer timeout values.

A-Series options

Headers to XML — Allows you to retrieve the header files of MXF files in

the XML text format or in MXF binary format.

Quantum A-Series FTP File Server User’s Guide 30

FTP File Transfers

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FTP File Transfers

The A-Series FTP client GUI is composed of four views, which allow you to select from the corresponding tabs:

A-Series FTP Client 2

• FTP Client Tab Display remote systems and make transfers.

• Configuration Tab Display FTP Client configuration settings.

• Transfer Progress transferred to or from the drive in the current FTP connection session.

• Transfer Summary transfer session (all files in a single drag and drop operation).

The A-Series FTP client allows you to transfer files to and from the tape drive, partially restore MXF files, and view the MXF metadata.

Connect to the A-Series client as follows:

In the address bar of your web browser, enter the configured IP address of your drive or use Bonjour.

To use Bonjour either:

a Type your configured hostname in lower case followed by .local.

(e.g.

a-series.local.) or

b Go to Safari bookmarks, select

drive from the list of Bonjour devices on your network (see

figure 22

) - double click on the line showing the drive to connect.

— This tab allows you to explore local and

— This tab shows a list of servers and the

— This tab shows a list of all files that have been

—This tab shows a summary of each completed

Bonjour and find your A-Series

Note: Bonjour bookmarks at this time are only available from the

Safari browser so when using other browsers use option a above.

Quantum A-Series FTP File Server User’s Guide 31

Figure 22 Bonjour Bookmarks

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FTP File Transfers

If the Bonjour item is not shown in Safari bookmarks go to the Safari > Preferences > Bookmarks dialog and enable your choice of where to Include Bonjour

In the A-Series

As the

FTP Client page loads, the Java Virtual Machine is started. When

User Menu, click FTP Client.

the Java Virtual Machine finishes loading and you have successfully logged in, the

FTP Client window displays (see figure 23). You will be

asked to log in if you have not yet done so from the current browser.

Quantum A-Series FTP File Server User’s Guide 32

Figure 23 A-Series FTP Client

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FTP File Transfers

FTP Client Tab 2

The FTP Client tab is the main tab view with a standard FTP client interface, providing two file panes.

You must click the A-Series FTP server. Figure 23

Connect button to open a FTP connection to your

shows the A-Series FTP client in the

connected state.

If the login name and password were entered incorrectly, you can reset to the correct login ( (see Setting Client Login Information

Quantum A-Series FTP File Server User’s Guide 33

root) and password (password) in the Configuration tab

on page 26).

Figure 24 FTP Client Tab

Panes

Server

Drive

Address Bar

Display

Chapter 2 Using the FTP File Server

FTP File Transfers

Once connected, the Connect button changes to Disconnect and you can click the

Disconnect button to disconnect from the FTP server at anytime

except during file transfers.

File Panes 2

On the top of each pane, there are three text zones:

• The first zone allows you to select the local file system or any configured FTP server.

• The second zone allows you to select any available drive letter (only available on

Note: On Mac OSX systems, external drives and other mounted

volumes may be found under the

• The third zone displays the currently navigated path and allows you

Local PC file systems).

/Volumes directory.

to edit the path within the address bar.

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Each pane displays the file system at the location specified in the header zones and you can interact with the system as follows:

• Double-click a folder to move into that folder and view the enclosed folders and files

• Double-click the green Up-arrow folder at the top followed by leader dots to change directories back up to the parent folder

• Click an item (file or folder) to select it

File Transfers 2

•Use <

Ctrl> (<Command> under Mac OSX) for non-continuous and

Shift> for continuous item selection

Ctrl + A> (<Command+A> under Mac OSX) to select all files and

folders

•Use

• Right-click to see the

F2 is supported (allows you to edit the name of the selected file)

Contextual menu (<Ctrl+click> under Mac OSX)

• Click the column headings to change the sorting order

• Drag and drop column headings to change the order in which they appear

• Drag the right edge of any column heading to change its width

• Right-click on any column heading to choose what’s displayed (this is a shortcut to the selections in the Configuration tab)

The A-Series FTP client allows you to transfer files from a:

• Computer to/from an A-Series server

• Local computer to/from a non-A-Series FTP server (e.g. Filezilla)

• A-Series server to/from a non-A-Series server (FXP transfer)

• A-Series server to/from another A-Series server (FXP transfer: tapeto-tape copy)

To transfer files, select one or more items in one pane, then drag and drop them to the other pane. For archiving, drag from the local pane to the A-Series pane. For restoring, drag from the A-Series pane to the local pane. You can also reorganize files by dropping selections on the Uparrow folder or other folders of the same pane, local or remote as an alternative to the Move command (see figure 35

Quantum A-Series FTP File Server User’s Guide 35

Chapter 2 Using the FTP File Server

FTP File Transfers

When transferring large files maximum transfer rates may be achieved. When transferring files of less than 4 MB, you will see degraded drive transfer rates.

Note: The maximum native storage capacity of the SDLT 600A

cartridge is 300 GB and the LTO-3A is 400 GB. A-Series drives contain hardware to provide automatic lossless compression if file sizes can be reduced. Most video files will not compress further, but many other file types may allow you to get much more than the stated native capacity on a tape.

Transfer Queue Tab 2

Once a transfer is initiated, the bars next to each item in the transfer list show the transfer progress—when the indicator is striped or moving back and forth, the tape is seeking, and once data copying actually begins the bar shows the progress (see figure 25

Quantum A-Series FTP File Server User’s Guide 36

Figure 25 Transfer Progress

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FTP File Transfers

The queue lists the files to transfer as well as the status of the transfer. By selecting a file from the list and then right-clicking it (see figure 26

), you

can:

• Start the transfer queue

• Stop the file transfer

• Remove the file from the list

• Retry the operation

• Display the file transfer properties

Quantum A-Series FTP File Server User’s Guide 37

Figure 26 Stop Transfer Selection

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FTP File Transfers

Note: When you perform a transfer between two remote servers, a

procedure called

Protocol

), data is transferred directly from the source remote

Server to server or FXP (File eXchange

server to the target remote server, without routing this data through the client’s workstation. The client has no indication of the exact progression.

Quantum A-Series FTP File Server User’s Guide 38

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FTP File Transfers

Transfer Summary Tab 2

Figure 27 Transfer Summary

A sequence of file transfers stops when the Transfer queue list is completed or an unrecoverable error is encountered. When file transfers stop, the display automatically switches to the Summary tab, displaying full information about the most recent transfer (see figure 27

Quantum A-Series FTP File Server User’s Guide 39

Chapter 2 Using the FTP File Server

FTP File Transfers

Note: File transfer summaries show total number of bytes

transferred using the Unix/Linux totals compiled from each file's

ls -l representation. These totals may not exactly agree

with the number of bytes reported by Finder or Windows due to differences in calculation methods.

Duplicate File Name 2

Figure 28 File Exists Window

When you transfer one or more files and there is already a file with the same name in the destination, there is a conflict and the following window displays:

• Overwrite/Overwrite all — Deletes the file already on the target and copies the new file in its place. Overwrite will replace only the current file. Overwrite all will apply the command to every duplicate file name in the Transfer queue.

Note: When you overwrite a file on an A-Series drive, it is not

erased from the tape, because the tape drive appends data only (unless the file to overwrite is the last file stored on the tape), however it is not possible to access the overwritten file. Files overwritten on hard disk destinations are in fact erased.

Note: The A-Series does not support

•

Skip/Skip all— Continues the transfer for other selected files without

overwriting the specified file(s).

Skip all will apply the command to every duplicate file name in the

Skip will skip only the current file.

Resume.

Transfer queue.

Quantum A-Series FTP File Server User’s Guide 40

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FTP File Transfers

Information Within the Panes 2

Figure 29 Additional Metadata Columns

In addition to the information about a file (size, date, and so forth), metadata information relative to the MXF files (file top, file end, essence, and so forth) is provided within the pane.

Note: You can select which metadata columns to display in the

Configuration tab.

Figure 29

shows additional metadata columns which can be viewed by

moving the slider at the bottom of the pane to the right.

Each MXF file’s metadata may contain information for several essence types (e.g. video essence, audio essence) and you can display the associated metadata by clicking the selector within the as indicated in figure 29

and figure 30.

Essence column,

Figure 30 Audio Essence Metadata

Quantum A-Series FTP File Server User’s Guide 41

Chapter 2 Using the FTP File Server

Standard operations

MXF operations

Tape operations

FTP File Transfers

Contextual Menu 2

Figure 31 Contextual Menu

A Contextual menu allows you to control operations on the selected items. This menu appears when you right-click within the directory pane or on a file.

The zone on top of the

Contextual menu (see figure 31) is for standard

operations available on all systems (Local A-Series, or other FTP server). The other two zones present operations that are only available on A-Series drive panes (MXF operations, tape operations).

Standard Operations 2

•From the Contextual menu, the Rename selection allows you to

Figure 32 Renaming Files or Folders

rename the selected folder. Enter the new name (see figure 32 cancel the procedure, type <

Esc>.

•From the Contextual menu, the Delete selection opens a window (see

figure 33

) to confirm the deletion of files. Once the deletion is

). To

confirmed, the deleted file or deleted folder contents is moved into the

Trash folder. The Trash folder is a system folder located at the root

Quantum A-Series FTP File Server User’s Guide 42

Figure 33 Delete Window

Chapter 2 Using the FTP File Server

FTP File Transfers

of the file system (i.e. /Trash). It cannot be deleted. Deleting a folder deletes all the files within the folder as well as any subfolders and their corresponding files. After a folder is deleted, Trash will contain all deleted files but not the folder that they were in.

Note: The

Trash folder (see figure 34) shows the list of files that

you have deleted. When you delete a file, it is not entirely deleted from the tape, but rather, it is moved to the

Trash

folder. Therefore, it is possible to “undelete” files from the

Trash folder by moving the file back to its original location

using the

Move command or by dragging and dropping

the file(s) onto the up-level green folder.

When a file is deleted and the same file is already located in the Trash folder, the second instance of file is renamed with

<filename>xyz.extension. xyz starting with 000.

Since the maximum number of characters of the filename is 97 (including the extension), if the deleted filename is greater than 94 characters long, the second instance of file is renamed with

truncated filename>xyz.extension (<truncated filename> means the

last three characters of the filename are truncated).

Note: Items may be placed in the

command or the and drop onto the

Move command (the same as moving by drag

Trash).

Deleting files differs from moving files to

•If you

Delete a file where a file with the same name is already in the

Trash, it will be renamed as described. If you try to Move it instead

Trash either with the Delete

Trash as follows:

you will get an error message because the name is not unique.

Quantum A-Series FTP File Server User’s Guide 43

Figure 34 Retrieving Files From the Trash Folder

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FTP File Transfers

•If you Move a folder to the Tra sh, the entire folder is moved. If you

Delete it, only the files are moved to Tra sh and the folder(s) no longer

exist.

• From the Contextual menu, the Move selection opens a window (see

figure 35

) to specify the destination of the file or folder. The Move selection supports an absolute pathname, that is, you can enter a full pathname in the dialog box to set the destination of the file or folder.

Note: The

Figure 35 Move File Window

Trash folder and up-level folders cannot be moved.

Note: This operation can be useful to undelete a file.

Enter the destination folder name.

•From the window (see figure 36

Contextual menu, the Create Folder selection opens a

) to specify the new folder. The Create Folder selection supports an absolute pathname, that is, you can enter a full pathname in the dialog box to set the destination of the file or folder.

Quantum A-Series FTP File Server User’s Guide 44

Figure 36 Create Folder Window

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FTP File Transfers

•From the Contextual menu, the File properties selection (see figure 37) opens a window showing the metadata of all MXF files selected:

• Filename

• Filesize

• Last modification date

•Starting time code

•Ending time code

• Duration in time codes

• Video essence type(s)

• Number of video frames

• MXF Operational pattern

• MXF Unique Media Identifier (UMID)

•Owner

•Group

Note: Multiple file selection is supported.

Quantum A-Series FTP File Server User’s Guide 45

Figure 37 MXF Information of D10 PAL Essence

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FTP File Transfers

Figure 38 MXF Information of DV NTSC Essence

Partial Restore 2

Note: The A-Series supports different video essences (see figure 38

)

and MXF operational patterns.

•From the Contextual menu, the Partial restore… selection opens a window to do a

Partial restore allows you to define and later restore a part of an MXF AV

Partial restore of a selected MXF file.

file (subclip access by timecode) stored on the tape, that can be defined by the

Starting time code and Ending time code or Starting time code and

Number of frames.

The

Partial restore feature is currently only supported for MXF OP1A and

OPATOM operational patterns and only with I-Frame (not long-GOP) video essence types. The

Partial restore procedure for OP1A and

OPATOM MXF files differs slightly from each other due to the fact that

Quantum A-Series FTP File Server User’s Guide 46

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FTP File Transfers

OP1A has both video essence and audio essence embedded into a single file, while OPATOM is composed of a directory containing subdirectories for each of at least one video file and several audio files and possibly other subdirectories such as

Icon, Proxy, Clip, etc.

Figure 39 Partial Restore OP1A Window

The operational differences between the

Partial restore operation of OP1A

and OPATOM is that the procedure for OP1A defines the destination file and the procedure for OPATOM defines the destination directory.

Partial Restore of MXF OP1A

The Destination file name is the name of the virtual file. The edit box for

Destination is empty by default and you can enter a relative or absolute

path.

When you click OK in the Partial Restore dialog, the Partial restore command creates a corresponding file into the specified folder or if no path is included, into the current folder. This new file is referred to as a virtual file as it contains no data but is actually a directory entry which points to the designated sub clip in the original file.

Note: The .mxf extension is a required part of the destination file

name,

and must be explicitly typed as it will not be added

automatically. Add the extension to the file name within the

Destination file name box.

Quantum A-Series FTP File Server User’s Guide 47

Figure 40 Partial Restore OPAT OM Window

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FTP File Transfers

Note: The partial restore of OP1A is not successful if the destination

file name already exists. Confirmation that the Partial Restore was successful indicates that the virtual file was created. The actual partial file will not be created until that virtual file is restored to a destination.

Partial Restore of MXF OPATOM 2

The Destination file name is the name of the directory where the virtual files will be stored. There is one virtual file per AV source file. The edit box for

Destination is empty by default and you should enter an absolute

path pointing to the next level up from the current Contents folder level or above (see figure 40

Note that in this case, the Destination field defines the directory where the OPATOM subdirectories and files will be created. When you click the

Partial restore dialog, the virtual files are created into the specified

OK in

directory. The result of creating the example in Figure 40 is shown in the following diagram.

Quantum A-Series FTP File Server User’s Guide 48

Figure 41 OPATOM Partial

Chapter 2 Using the FTP File Server

FTP File Transfers

Note: The partial restore of OPATOM is not successful if the

destination directory already exists.

Once the virtual file is created, a window displays.

Figure 42 Partial Restore Successful Window

Quantum A-Series FTP File Server User’s Guide 49

Figure 43 Partial File List

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FTP File Transfers

When you click OK, the Success dialog dismisses and you can continue to define additional subclips with different timecode entries if desired. When you are done creating partial files from the selected clip, click on the

Done button.

Once the partial restore has been successfully completed, the virtual file(s) are listed in the directory. Since there is only one virtual file for OP1A but several for OPATOM, when OPATOM virtual files are listed in the directory, they appear within subdirectories as shown in figure 41

Figure 43 shows the results of the partial file creations from the examples above, including partial OP1A files, identifiable by the "p" shown inside the MXF icon.

In OPATOM, all of the files are organized the same as on a P2 Solid State Media (SSM) Card in a “CONTENTS” directory, which contains the clip metadata subdirectory, video essence subdirectory, audio essence subdirectory, and also may contain a variety of other optional subfolders.

Other directories are not mandatory and are described with the command (see the

Figure 44

shows the resulting subdirectories created from the OPATOM

PARTIAL command on page 94).

SITE

partial restore operation (i.e., this is what would be seen if you doubleclicked the folder identified as 11Ipartial.mxf and then double-clicked the CONTENTS folder in figure 43

Quantum A-Series FTP File Server User’s Guide 50

Figure 44 Partial File List in OPAT OM

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FTP File Transfers

The result of the partial restore command is a virtual file. This file must be retrieved to be completed on the local hard disk.

Creating MXF Header Files 2

Retrieve a Virtual File

After a successfully completed partial restore (for both OP1A and OPATOM), you can retrieve the virtual file to the local hard disk with the same type of drag-and-drop operation used for any file.

Note: The destination of the virtual must be to the local hard disk.

Once transferred, a MXF-compliant file is saved to its destination location.

From the Contextual menu, the Create Header selection opens a window (see figure 45

) to create an MXF header metadata file. The Create Header selection supports an absolute pathname, that is, you can enter a full pathname in the dialog box to set the destination of the file or folder.This action is used to extract any MXF file’s header metadata into a separate file. This separate file is user specified to contain binary or XML data as configured (see A-Series options which metadata is to be extracted and then select the from the

Contextual menu. The result of this command is a virtual file. In

on page 30). Select the MXF file for

Create Header item

XML, its size is always 65536 (64 KB).

Quantum A-Series FTP File Server User’s Guide 51

Figure 45 Create Header Window

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FTP File Transfers

This file must be retrieved to be completed. Once the file is transferred, the MXF header file is saved to your local disk.

Note: Since the MXF header in binary format has the same UMID as

the original MXF file, storing it may cause problems during a

Partial restore operation as the file system will find several

files previously allocated to the UMID.

Enter the new header name with any extension you want. You can choose the appropriate extension as configured into the (see figure 17

on page 24).

Configuration tab display

Tape Operations

•From the Contextual menu, click Eject tape. This will open a window (see figure 46

) to eject the loaded tape and disconnect the user.

Note: If the file system table of contents has been modified, these

modifications will be saved to tape prior to ejecting.

Figure 46 Eject Tape Window

Note: You cannot eject the tape without root privileges (see

figure 47

•From the Contextual menu, the Acknowledge error command is no longer required and is grayed-out.

Quantum A-Series FTP File Server User’s Guide 52

Figure 47 Eject Tape Error Window

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FTP File Transfers

•From the Contextual menu, click Tape information.... This will open an

information window (figure 48

) about the tape identifier and how

space is utilized on the tape as follows.

•

Tape space — This indicates the total space used on the tape and

the total free space available on it (the native capacity after an erase operation is 300 GB).

•

Table of Contents space — This indicates the total space used

within the allocated area (known as eMAM) for the tape's directory (total number of entries used in the file system) and the total free space available remaining for additional directory entries.

•

Files inventory — This indicates the number of entries in the file

system for each file type; MXF files, regular files, directories, deleted files, virtual files (virtual files are created by a partial restore command or by a create header command). A virtual file exists only in the file system and is not stored on tape. The number of directories takes into account the two system folders:

/ and /Trash.

•

Medium ID — This is a unique 8-digit ID assigned to the medium.

•

User Medium ID — An eMAM attribute - up to 160 ASCII bytes for

the user to describe the medium.

•

Manufacturer Medium ID — A combination of the Medium ID and

the drive serial number to make a completely unique ID to assign to the medium.

Quantum A-Series FTP File Server User’s Guide 53

Figure 48 Tape Information

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FTP File Transfers

•From the Contextual menu, click Erase tape. This will open a window (see figure 49

) to erase the entire tape after your confirmation.

Caution: All existing data on the file system will be overwritten

when you click

Erase tape.

Figure 49 Erase Tape Window

•From the Contextual menu, click License information… opens a window about product versions and licenses of the A-Series server and FTP client (see figure 50

). The first version number listed is the

version of the server firmware.

Quantum A-Series FTP File Server User’s Guide 54

Figure 50 Information on Software Licenses Window

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•From the Contextual menu, click Prepare for magazine unload. This will disconnect all current FTP connections and move all tapes back to slots within an A-Series autoloader.

Execute this command to make sure that a desired cartridge does not remain in the tape drive while unloading magazines from the autoloader.

Note: It is strongly recommended that this command be

executed prior to shutting down any SuperLoader 3A Series system. This command is disabled for the standalone A-Series tape drive.

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File System Limitations 2

The following lists summarize a number of file system limitations.

File Names and Entries

• The maximum file name length is 97 characters, including the file name extension.

• As of version 3.0, file names or folder names may contain any UTF-8 characters in any combination up to the 97 character limit. This limit is for each individual file or folder item, so a full pathname can be much longer.

Note: While any characters in a file name can be used, many names

may not be compatible on platforms other than the one they came from and thus may cause errors upon restore to other computers (see A

-Series Best Practices on page 57) for

recommendations on file naming.

• The maximum number of entries per Table of Contents on each tape (including both files and folders) depends upon a variety of factors. Rough estimates for the capacity of SDLT 600A systems are 10-12,000 entries and for LTO-3A systems are 150,000 entries. In general, shorter file names allow for a greater maximum number of files per tape.

Quantum A-Series FTP File Server User’s Guide 56

A-Series Best Practices

Over the past few years, Quantum has gained experience with the A-Series drives as to a number of practices which can make the user experience smoother. This section gathers some of these items to help our customers have the best possible experience.

Chapter 2 Using the FTP File Server

A-Series Best Practices

Networking Considerations 2

These drives connect over Gigabit Ethernet (GbE), and that networking technology officially requires CAT6 or better quality cabling. Many users find that older CAT5E or even plain CAT5 wiring works fine over short runs as long as all 8 wires are employed (some older Ethernet cables only have 4 wires connected and these will not work at all). If you are experiencing network issues, cabling quality and length of runs are one of the first places to consider.

In the past, connecting Ethernet devices without a router or switch required a "flipped" cable which swaps transmit and receive pairs. These should never be required on any Gigabit Ethernet devices. This is automatically detected and accommodated by A-Series drives as with all other GbE products.

Gigabit Ethernet is backwards compatible so you can connect an A-Series drive to 100Base or even 10Base networks although your transfer speed will be much slower than even these networks can accommodate since the drive must stop each time it runs out of data and then restart when it gets the next packets.

The

Jumbo Frames setting is discussed in the configuration sections but is

worth mentioning here. It allows transfers of much larger packets and most GbE devices can accommodate them (for instance, all MacPro computers have dual Jumbo Frame enabled GbE ports). Enabling Jumbo Frames provides about a 25% increase in performance in our experience. You will have to experiment in your environment, but it should be worth trying.

When Directory Updates Occur 2

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It is important for users to understand that the directory (also known as the TOC or Table of Contents) is only updated when the user fully disconnects from the drive. Thus, if you wrote something to the tape and then turned off the drive before disconnecting, that information will

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never be recorded in the TOC and the archived data has no record of being written and is at that point lost. You will see a power failure message and data loss warning when you reconnect and it may be possible for Quantum to recover that data, but this is clearly a situation to avoid. For this reason we not only recommend that A-Series drives be on an uninterruptible power supply (UPS), and also that users always select the

Disconnect button whenever an archiving session is completed.

Further, to be completely safe, the tape should always be ejected from the drive when done. This is most easily done from the Contextual menu (right click in the tape directory column) and select alone drives or

Prepare for magazine unload on SuperLoaders.

Eject Tape for stand-

File Naming Considerations 2

FTP Servers and Clients typically do not handle many unusual characters such as quotation marks or slashes, and some can't handle even minor infractions such as extra spaces or periods. A-Series version 3.0 and later firmware has been modified to accept any filenames within our 97 total character limit, regardless of special characters, as we have seen many user problems arising from this.

With this new capability to accommodate any filename in place, there will be still be issues when users attempt to restore such files cross platform. When a Mac file has characters illegal on a Windows machine, and you attempt to restore it to a Windows machine, the transfer will fail because Windows will not let the application create that file name.

In general, it is best practice to limit your filenames to be absolutely safe and adhere to the Windows filename restrictions:

• No control characters (Carriage Return (CR), NULL, and Linefeed (LF) are control characters)

• Don't use < > : " / \ | ? * %

• Don't use space or period as the last character

If you are not adhering to this limited recommended naming practice, the only way to be assured files will restore is to put them back on the same type of machine they came from. Note that, to the best of our knowledge, any Windows files can still always be restored to Macs because Windows naming is much more restrictive.

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Third-Party FTP Clients 2

While A-Series drives employ the IT industry FTP standard, use of the A-Series with other FTP clients may cause problems for a variety of reasons:

• Many FTP clients we have evaluated cannot be set for a long enough timeout to handle latencies experienced with tape drives and especially with SuperLoader operations

• While A-Series drives use standard FTP commands, they also support extended

FTP SITE commands which are not supported by

third-party FTP clients (like eject, erase, etc.)

• Error messages important to understanding any problems which may be encountered are frequently not passed on to the user by thirdparty FTP clients

• Extended drive capabilities such as viewing MXF properties or doing partial restores can not be accessed by third party FTP clients

For these reasons, we strongly recommend that the A-Series only be accessed by our built-in Web-served FTP client or approved third-party applications (currently including only the Pictron Network Tape Gateway application and Imagine Products HDLog / TEP applications).

One more set of reasons to be cautious of general purpose FTP clients is that most do not support Apple file resource forks as described in the following section.

Users who want to use third-party FTP clients may still be able to do so without problems, especially on Windows platforms. Many customers have reported good results with

Flash FXP in that environment. Please

note that in those situations where you are doing so, Quantum cannot offer technical support.

Apple Resource Forks and the A-Series 2

Apple computers before Mac OSX used something called "resource forks" to keep track of what application created each file rather than the Windows convention of a three letter dot suffix to keep track of the association (i.e. a

.doc file is a Microsoft Word file or a .jpg is a JPEG

image). Resource forks could also keep track of additional information including file types and custom icons. Resource forks are "depreciated" in the Mac OSX, which is to say that they are supported but applications are not supposed to use them anymore. We have found that they are in fact still widely used and important for many applications, including some of Apple's very own applications. We have learned that Final Cut Pro in

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particular creates such files and archived projects to not restore correctly unless this resource information is retained.

The A-Series built-in Java FTP Client correctly retains this information in server firmware version 2.5.4 and later. Most other Mac FTP clients such as Transmit and Cyberduck do not do this and should not be used for this reason unless you know you don't need this resource fork information.

Each resource fork file is a hidden file on the Mac OSX and using a cross platform technology which Apple developed and named "AppleDouble," is converted to a "dot underscore" file (for each filename, there will be a matching ._filename). You can view or hide the display of AppleDouble files on tape with the

Listing Option selector on the FTP Client Show/

Hide option popup.

FTP Session Timeouts 2

Most FTP Clients have some pre-wired amount of time after which they automatically disconnect. As noted above, this may not be long enough for tape operations (shuttling, seeking, updating directories, etc.). In some environments, even the recommended settings for the A-Series clients may not be long enough and can cause disconnects. If you experience error messages that you have been disconnected, you may need to set even longer timeouts than those here:

To set the client timeout:

•Go to the FTP Client > User Menu > Configuration Tab

•In the FTP Client options box set the Timeout (sec) type-in box to 3000 for SuperLoaders or 900 for stand-alone units

•Click

Apply

To set the server timeout: 2

•Go to the Admin Menu (password: admin)

• Select the

• Set the

Setup item in the left column

FTP Server Timeout (minutes) type-in box to 60 for

SuperLoaders or 15 for Stand-alone units

•Click

Update

• Select the Reboot item in the left column and reboot the drive

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Lossless Data Compression 2

Taking the A-Series on the Road 2

You may well find you can get more than the stated capacity of our tape cartridges (300GB for SDLT 600A or 400GB for LTO-3A). A-Series drives have hardware lossless data compression running transparently in the background on both the LTO and DLT versions.

Normally video data does not compress further with this and whenever no savings are seen, the data is stored exactly as it comes in to the drives. With other types of data (especially files like documents and spreadsheets) this compression can save up to 2:1. Never worry about this changing your data in any way - every bit stored is guaranteed to restore bit-for-bit as it came in, which is why it is called "lossless."

Always refer to the listing of remaining capacity at the bottom of the A-Series directory listing column for a true representation of how much space you have left, and use the

Tape Information item of the Contextual

menu (right click in the tape directory column) for further details on tape usage and capacity.

We are seeing an increasing number of customers who are starting to take A-Series drives out into the field to make backups of the increasing range of cameras which record to RAM and hard disk. These users find A-Series tape to be a good replacement for "Field Masters" which used to be automatically generated by hanging on to original tapes.

While there are no ruggedized versions of the drive yet available, those that have been taken out have a fairly good track record. There are three areas to exercise caution: contamination, temperature, and humidity.

Keeping the drive and tapes clean and dust-free is extremely important to ensuring long term operations without problems. Sealed containers and/ or using plastic bags to keep contamination out of both the drive itself and tape cartridges is strongly recommended. Keeping a cleaning tape on hand in the event you get a cleaning light warning condition is also an extremely good idea.

The range of temperatures that both the drive and tapes can withstand is very broad, but the range they should be operated in is much more critical as can be seen in the table below. The point here is that whether you are starting with a drive that was baking in the sun or freezing in the cold, try to let it slowly get as close back to room temperature as possible before using.

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Description Storage Operating

When All Else Fails 2

SDLT 600A Drive -40° to 66° C

(-40° to 151° F)

SuperDLTtape II 16° to 32°C

(60° to 90°F

LTO-3A Drive -40°to 66°C

(-40°to 149°F)

Ultrium 3 Tape 16°to 32°C

61° to 90°F

10° to 40° C (50° to 104° F)

10° to 40°C (50° to 104°F

10°to 40°C (50°to 104°F)

10° to 45°C (50° to 113°F)

Finally, all of these systems are rated for 20 to 80% non-condensing humidity or better. Unless you are in a very wet environment, this is not likely to be a problem, but if you start to notice beads of moisture forming on your equipment, it is time to be cautious about making backup tapes. It is advisable to seek out air conditioners, space heaters or even hair driers to try to get the environment to the point where moisture is not collecting on tapes or drives before using.

There may be a time when you cannot get your drive to function properly despite all the best practices in the world. When that happens, you will have to contact Quantum technical support. Support may ask you for log files from your drive and that is covered in the appropriate sections of this manual. For convenience it is also included here.

• FTP Server Logs may be collected from the

Admin Menu side of the

A-Series Web page.

•Click

• In order to obtain better information when you send us logs, please check the box for

Setup

page.

Enable Syslog Messages under the Admin Menu >

• Use the drive until you can reproduce your problem.

• To collect a log, immediately after any problem, select the

> Diagnostic Log

page and click the Generate New Log button. A link

Admin Menu

on that page will be created to the log file. Download it and email us the resulting file.

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• Also noting the exact error message and number (or snagging a screen shot) and any other descriptions of what the drive did will be helpful.

In some cases you may also be asked for

Client Side logs.

• FTP Client Logs may be collected by enabling logging under the

Configuration tab of the FTP Client page.

• Turn on the

•Click the

Use Log File check box.

Change button and browse to a location on your local hard

drive where the log file is to be created (a good place might be your downloads folder or your desktop).

• Client logs will be created as you use the drive and should also be forwarded to Quantum support immediately after any problem.

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Additional Admin Menu Pages

This section provides information about additional administrative features and includes the following

• Date & Time

• Change Admin Password

• Versions

• Update Server Firmware

• Update Drive Firmware

• Diagnostic Log

• Reboot

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Additional Admin Menu Pages

Admin Menu pages:

Date & Time 2

Figure 51 Date & Time

From the Admin Menu, you can access the Date & Time page (see figure 51) to set the date and time of the A-Series device, either manually or with a Network Time Protocol (NTP) server.

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To set the time manually: 2

1 Select the Manual radio button.

2 Select the

New System Date by clicking the Edit button and then

choosing the current date from the calendar control.

3 Enter the

New System Time and then your local Timezone.

4 Click the Update button.

To set the time using a NTP server:

1 Select the Use NTP radio button.

2 Either select

Get from DHCP or specify the IP address of your NTP

server.

3 Select your local

4 Click the

Update button.

Timezone.

Note: A reboot of the A-Series server is required for changes to take

effect.

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Change Admin Password 2

Figure 52 Change Admin Password

From the Admin Menu, you can access the Change Admin Password page (see figure 52

) to change the password that accesses the A-Series

administrative features.

Note: This is the password to access these Admin Menu capabilities

and is not the password for the FTP client user connection.

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Versions 2

Figure 53 Versions Page

From the Admin Menu, you can access the Ver sion s page (see figure 53) to display product versions used in the A-Series FTP server.

You can also access the click

License information.

Contextual menu from the FTP Client page and

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Update Server Firmware 2

Figure 54 Update Server Firmware

From the Admin Menu, you can access the Update Server Firmware page (see figure 54

) to change the firmware of the built-in FTP server.

To acquire the firmware, go to the software download page at

www.quantum.com

Select

Service and Support from the navigation bar and select Product

Information

, then navigate to your A-Series model of standalone tape

drive or SuperLoader 3A.

Scroll down the page to find the

Server Firmware download button and

save the linked file to any known location on your local drive. This will be a

.tar file – do not un-tar the file.

Click on the Browse button and navigate to where you saved the download and locate the file to update:

A-Series.Rel_x-x-x (e.g. A-Series.Rel_3-0-0.tar)

Click the wait for the page to refresh before continuing. Select

Update button to initate the firmware update. Be patient and

Reboot from the left

column and confirm when so instructed.

Caution: Interrupting this process can permanently destroy your

drive.

Note: Quit and restart your browser after the update process to

make sure that the FTP client feature is refreshed properly.

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Update Drive Firmware 2

Figure 55 Update Drive Firmware

From the Admin Menu, you can access the Update Drive Firmware page (see

figure 55

) to change the firmware of the tape drive.

To acquire the firmware, go to the software download page at

www.quantum.com

Select

Service and Support from the navigation bar and select Product

Information

, then navigate to your A-Series model of standalone tape

drive or SuperLoader 3A.

Scroll down the page to find the

Drive firmware download button and

save the linked file to any known location on your local drive. This will be a

.img file (Mac OS systems will see this as a mountable volume) - do not

mount the file.

Click on the Browse button and navigate to where you saved the download and locate the file to update:

filename.img (e.g. V20246216-700.img)

Click on the wait for the page to refresh before continuing. Select

Update button to initiate the firmware update. Be patient and

Reboot from the left

column and confirm prior to using the drive.

Caution: Interrupting this process can permanently destroy your

drive.

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Diagnostic Log 2

Figure 56 Diagnostic Log

From the Admin Menu, you can access the Diagnostic Log page to get a comprehensive snapshot of the current state of the A-Series device. Note that the log may not contain enough information for tech support unless the

Enable Syslog Messages box was checked on the Setup page when an

error occurred.

Note: The Diagnostic Log is cleared after any reboot or power cycle

and is limited in size, containing only the latest operations. For this reason Diagnostic Logs should be collected immediately after any problem arises.

To generate a Diagnostic Log, click then click

Generate New Log (see figure 56).

Diagnostic Log from the Admin Menu,

It can take several minutes to generate the diagnostic log as shown in

figure 57

When log generation completes, the new diagnostic log file displays (see

figure 58

You must now download the log file to your local computer by rightclicking on the link which appears, selecting saving the

.gz file to any known location on your local disk. Email the

Download Linked file, and

resulting file to Quantum Customer Support, also noting the exact error message and number (or snagging a screen shot) and any other descriptions of what the drive did. This information will be helpful in diagnosing your problem.

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Figure 57 Diagnostic Log Generating

Figure 58 Diagnostic Log Complete

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Reboot 2

Figure 59 Reboot Confirmation Window

From the Admin Menu, you can access the Reboot command for a system restart.

Note: Always remove the tape before turning off the A-Series tape

drive. Failure to remove a tape prior to the

Reboot command

can cause loss of data on tape.

A tape cartridge can be unloaded during an active FTP session only by using the built-in FTP client. Right-click within the right pane of the FTP client window to display the menu, then click

Eject tape.

Contextual

A tape cartridge can be unloaded from the front panel of the drive only when the FTP client is not connected.

To reboot:

1 Click

Reboot on the Admin Menu. A Reboot confirmation window

displays.

2 Click OK.

Figure 60 Reboot in Progress

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Appendix A

ATroubleshooting

This appendix provides troubleshooting information that might be helpful with problems encountered when working with FTP file transfers using the built-in FTP client and server.

This appendix covers the following topics:

• Resetting System Defaults tape drive to its default values.

• FTP File Transfer Troubleshooting information.

Quantum A-Series FTP File Server User’s Guide 73

provides a procedure to reset the A-Series

provides troubleshooting

Resetting System Defaults

As there is no access to the A-Series tape drive other than the Ethernet port, a mechanism has been implemented to reset the settings to their default values. This is useful if an end user loses the IP address of the A-Series tape drive.

The system defaults are as follows:

Name Password/Setting

Static IP address 10.10.10.10

Netmask 255.255.255.0

Admin Menu default password admin

FTP Client login root

FTP Client default password password

Resetting System Defaults

SDLT 600A Drive Reset 1

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To reset an SDLT 600A tape drive back to default values:

1 Disconnect the network cable from the drive.

2 Switch off your tape drive.

3 Insert a write protected cartridge into the drive.

4 Switch on the tape drive (after approximately one minute, the

cartridge will be ejected).

5 Repeat steps 2 – 4 above two more times.

6 After the third cycle, switch off your tape drive.

7 Reconnect your network cable and switch on the tape drive.

8 Set your cartridge write protection on or off (as you need it) and

reinsert the tape (or another tape).

9 Access the drive from a browser at the default IP address

(10.10.10.10) to reconfigure to your desired settings.

Resetting System Defaults

LTO-3A Drive Reset 1

To reset an LTO-3A tape drive back to default values:

1 Disconnect the network cable from the drive.

2 Insert a write protected cartridge into the drive (wait approximately

30 seconds for tape to load and lights to stop flashing).

3 Switch off your tape drive for 10 seconds.

4 Switch on the tape drive (after approximately three minutes, the

cartridge will be ejected and reloaded; after an additional 30 seconds lights will stop flashing).

5 Repeat steps 3 and 4 above two more times.

6 After the third cycle, press the eject button on the drive to eject the

tape and switch off the drive.

7 Reconnect your network cable and switch on the tape drive.

8 Set your cartridge write protection on or off (as you need it) and

reinsert the tape (or another tape).

9 Access the drive from a browser at the default IP address

(10.10.10.10) to reconfigure to your desired settings.

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FTP File Transfer Troubleshooting

This section provides troubleshooting information that might be helpful with problems encountered when working with FTP file transfers using the built-in FTP client and server.

FTP File Transfer Troubleshooting

Root User 1

In Case of a Power Failure 1

Figure 61 Power Failure Error Message

When three root users are already connected, and you try to connect as a root, you will have an FTP error window (see figure 21

Given the time out setting of the built-in FTP client, it may need some time before the root connection becomes available.

Connecting as a guest user, it is possible to kill a root connection using a site command:

SITE KILLROOT <SP> <root password> <CRLF>

This command allows a guest user to disconnect the root user.

Caution: Before attempting such an operation, we encourage you to

report your intention to the root user.

A power failure will also cause also all users to be disconnected.

On any new connection after a power failure, the following window displays:

on page 29).

Click OK to acknowledge the power failure and allow further operations.

Note: Examine your tape's files carefully and re-archive any content

that was lost.

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FTP File Transfer Troubleshooting

In Case of a Write Error 1

Figure 62 Write Error Window

Write Protect Cartridge 1

MXF Troubleshooting 1

Any write error causes all users to be disconnected. On any new connection after a write error, the following window displays (see

Figure 62

When the table of contents of the file system is modified before the cartridge is protected (protection is made when the cartridge is inside the drive) these modifications will not be saved in the eMAM when a user ejects the tape or disconnects its FTP client.

Two MXF Files with Same UMID 1

It is possible that two MXF files have the same UMID when the MXF header metadata file is reingested into the A-Series tape drive. On a partial restore operation, the FTP server searches for the file according to the UMID. This way it can find the good file and bad file if there are two (the header metadata file).

Cannot Display MXF Properties

When storing MXF files, MXF metadata are extracted. MXF files are converted to regular files if MXF metadata cannot be retrieved (but are not renamed).

This solves issues such as the following:

• Creating a partial file without MXF metadata

• Restarting the transfer of an MXF file after an abort

• Listing MXF information (SITE MXFNFO) from aborted MXF files

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FTP File Transfer Troubleshooting

MXF Interoperability with Avid Files 1

Storing Avid native files may cause an error message (bad mxf file format) if not compliant to the MXF standard.

Network Drive Limitation1

Summary Tab 1

Built-in FTP Client Troubleshooting 1

When the A-Series FTP server is mapped as a network drive using ftp:// root@Ip, Windows XP/2000 opens two connections. However, it closes only one connection when the File Explorer window is closed. After three connections, there are three root users (maximum allowed) pending on the FTP server side. To avoid this issue, the network drive must be mapped using ftp://root:password@Ip. The drawback is that the password can be read from the network drive properties.

Upon completion of each file transfer queue, the lower portion of the FTP client automatically switches to the Summary tab where, if any errors were encountered, a complete list with explanations is displayed. Examine this report carefully for full information about any files that failed to transfer correctly and take corrective action as needed.

Java Run-time Environment (JRE) 1

The JRE may be installed under the operating system without support for oriental or occidental scripts. That is, certain coding schemes do not display in the built-in FTP client combo box. To add them with Windows XP, you must select the JRE used by the system. Click

or Remove Programs, JRE, Modify

. Follow the wizard to download

Start, Settings, Add

appropriate files for oriental languages.

In certain ISP connected network configurations, JRE 1.50 can cause an additional 30 second delay per file transferred which can greatly slow down operations with many files. If these long delays before each file transferred is seen, change your JRE back to 1.42 to resolve the issue.

Browser Issues

It is important to quit your browser and restart it after updating firmware versions. Failure to do so can cause you to be running an old Java applet with incompatible new software.

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FTP File Transfer Troubleshooting

In some cases cached pages can cause further problems. In Windows environments, before loading a new FTP server image (the Java FTP client is built in) you should clean your Internet Explorer environment. This avoids any side effects, such as Internet Explorer loading a previous version of the built-in FTP client.

From Internet Explorer, go to your

Tools/Internet Options and clear the

following:

• Cookies

• Temporary files

•History

Close all Internet Explorer sessions.

From Safari, click on the left most problems persist, you may need to select

Safari menu and select Empty Cache. If

Reset Safari... and check:

• Empty the Cache

• Clear Downloads Window

• Remove all Cookies

FTP Error Window

On occasion, a FTP error window requiring acknowledgement may be hidden behind a main window. As a result, all operations are disabled until the error is acknowledged. Use <

Alt+Tab> (<Cntl+~> on Mac OS) to

bring the error window to the front.

Drag and Drop

Drag and drop does not work as it does in Microsoft Windows. You must first select the item before doing this operation.

Communication Problem with Windows Server 2000

There is an incompatibility issue only with the RETR operation (not with

STOR). As soon as the FTP server responds with 150, an error may rise

locally on the client system indicating a communication buffer problem.

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FTP File Transfer Troubleshooting

A work around for the built-in FTP client is to change the buffer size in the configuration menu.

FTP Server Troubleshooting 1

Encoding Modification Not Taken Into Account 1

After any encoding modification, (selecting a different encoding on the

FTP Client Configuration page), the user should quit and restart the

browser to assure the new encoding selection is in effect.

Encoding Modification Side Effects

Before changing the FTP server encoding, it is safer to erase the tape to avoid any side effects. For example, files transferred with filenames set to a specific character set may not be listed into another encoding character set and may not be available for FTP operations.

Anonymous Connection Not Supported

The A-Series FTP server does not support anonymous connection. Any attempt to connect with anonymous connection causes the following error message:

Unable to connect to remote server and unable to setup a secure anonymous FTP

Remember, only root (password is password) and guest (password is

guest) connections are supported.

When the login is set to anonymous at the first try to connect to the builtin Java client, then the following tries will keep the same login anonymous. If you do not enter a login and password, the Java FTP client always tries to connect as anonymous.

To work around this problem, type OK to exit the error message window and go to the Configuration page. Select the connection that has been automatically named as @x.x.x.x:21 (where x.x.x.x is the IP address) and set the login and password correctly. Then select

Quantum A-Series FTP File Server User’s Guide 80

Apply.

FTP File Transfer Troubleshooting

Text Data Transfer Mode Not Allowed 1

Because the A-Series FTP server does not support ASCII data transfer, a user has to set the mode for the put (upload) and get (download) operations of text files into its FTP client (if not the Java FTP client). Set the mode from

AUTOMATIC to BINARY, exit the FTP client, and reload it.

Multiple Drive Environments 1

Frequent FTP Client Timeouts

An FTP client timeout occurs when the FTP server does not answer an FTP command within the allocated time.

If the FTP client timeout setting is too low, an error may occur during extended tape seek operations. In this case it is necessary to increase the timeout value of the FTP client and/or server in the client Configuration page and the server Admin Menu > Setup page.

Note: FTP Timeout conditions can be indicated by a variety of error

messages.

Unexpected Null Reply and Broken Pipe indicate the

FTP session ended unexpectedly and are frequently due to a timeout.

In multiple drive environments users may encounter a red X instead of the FTP Client applet. Once a computer has connected to one drive on a network, that drive will serve the applet and allow connections to all other drives on the network. In order to connect to a different drive to serve the applet, that browser must be quit and restarted.

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To take full advantage of the capabilities of the A-Series tape drives, you must have an FTP client that allows you to send SITE commands.

Supported FTP Commands

The following FTP commands are supported by the A-Series tape drives:

Appendix B

BFTP Commands

• Standard Commands (RFC959)

MKD, MODE, NLST, NOOP, PASS, PASV, PORT, PWD, QUIT, REST, RETR, RMD, RNFR, RNTO, SITE, STOR, STRU, SYST, TYPE, and USER

• RFC775 Commands

• SITE Commands

DRIVE_SN, EJECT, ERASE, ESSTYP, FREE, FSIZ, FTYP, GETMEDIUMID, HDR2XML, HEADER, HELP, IDLE, MEID, MXFNFO, PARTIAL, RELEASEMEDIA, SERVER_SN, SETMEDIUMID, TC, TIME, and VERSION

• Commands Not Normalized (Internet Draft): FEAT and SIZE

Quantum A-Series FTP File Server User’s Guide 82

: XCUP, XCWD, XMKD, XPWD, and XRMD

: ACKNOWLEDGE_ERROR, DELE, DIRSIZE,

: ABOR, CDUP, CWD, DELE, HELP, LIST,

Supported FTP Commands

Standard Commands

The following RFC959 standard commands are supported:

(RFC959) 2

Command ABOR

Syntax abor <CRLF>

Parameters N/A

Purpose aborts a file transfer (STOR or RETR).

Command CDUP

Syntax cdup <CRLF>

Parameters N/A

Purpose equivalent to "cwd .."

Command CWD

Syntax cwd <SP> <pathname> <CRLF>

Parameters - <pathname>: an existing relative or absolute directory.

Purpose This command allows the user to work with a different directory.

Command DELE (*)

Syntax dele <SP> <pathname> <CRLF>

Parameters <pathname>: an existing relative or absolute pathname.

Purpose This command allows the user to send a file to the Trash. RMD must be used instead of

DELE to delete a directory.

Command HELP

Syntax help [ <SP> <command> ] <CRLF>

Parameters <command>: a FTP command.

Purpose Without parameters, this command lists in alphabetic order the standard commands.

When <command> is a valid standard command, HELP provides the syntax of <command>.

Command LIST

Syntax list [<SP> <options>] [<SP> <pathname>] <CRLF>

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Parameters • <options>: same format as ls UNIX command. '-a' and '-l' are currently supported. If no

options, it is equivalent to a "ls -l" UNIX command.

• <pathname>: the directory or the filename that will be listed. A null argument implies the current working directory.

Purpose This command lists directory or file contents the same way the UNIX command 'ls -l'

does.

Contents will be sent to the passive DTP.

The client must have previously set TYPE to ASCII.

Command MKD (*)

Syntax mkd <SP> <pathname> <CRLF>

Parameters <pathname>: a relative or absolute pathname.

Purpose This command causes the directory specified in the pathname to be created as a directory.

Command MODE

Syntax mode <SP> <mode-code> <CRLF>

Parameters <mode-code>::= S | B | C. Transfer mode. Only 'S' (Stream) is supported.

Purpose This command allows the client to change the transfer mode. The only available transfer

mode is Stream ('S').

Command NLST

Syntax nlst [<SP> <options>] [<SP> <pathname>] <CRLF>

Parameters • <options>: same format as ls UNIX command. '-a' and '-l' are currently supported. If no

options, it is equivalent to a "ls" UNIX command.

• <pathname>: the directory or the filename that will be listed. A null argument implies the current working directory.

Purpose This command lists directory or file contents the same way the UNIX command "ls" does.

Contents will be sent to the passive DTP.

The client must have previously set TYPE to ASCII.

Command NOOP

Syntax noop <CRLF>

Parameters N/A

Purpose This command does not affect any parameters or previously entered commands.

It specifies no action other than that the server send an OK reply.

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Supported FTP Commands

Command PASS

Syntax pass <SP> <string> <CRLF>

Parameters <string>: the user's password.

Purpose This command must be immediately preceded by the USER command.

Any attempt to use this command when connected will be refused.

Command PASV

Syntax pasv <CRLF>

Parameters N/A

Purpose This command requests the server-DTP to "listen" on a data port (which is not its default

data port) and to wait for a connection rather than initiate one upon receipt of a transfer command.

The response to this command includes the host and port address this server is listening on.

Command PORT

Syntax port <SP> <host-port> <CRLF>

Parameters - <host-port>: the concatenation of a 32-bit IP address and a 16-bit TCP port address.

<host-port> ::= <host-number>,<port-number>

<host-number> ::= <number>,<number>,<number>,<number>

<port-number> ::= <number>,<number>

<number> ::= any decimal integer 1 through 255

Purpose This command changes the default data port value.

Command PWD

Syntax pwd <CRLF>

Parameters N/A

Purpose This command causes the name of the current working directory to be returned in the

reply.

Command QUIT

Syntax quit <CRLF>

Parameters N/A

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Purpose This command closes the control connection opened with the sequence USER+PASS, if a

file transfer is not in progress.

If file transfer is in progress, the client should send an ABOR command before a QUIT.

Command REST

Syntax rest <SP> <marker> <CRLF>

Parameters <marker>: offset in the file (in bytes) at which the transfer will be restarted.

Purpose This command is useful to restart an interrupted transfer.

It gives to the server the byte position in the file at which the transfer will restart.

It must be immediately followed by a STOR or RETR command which shall cause file transfer to resume.

Command RETR (*)

Syntax retr <SP> <pathname> <CRLF>

Parameters <pathname>: an existing relative or absolute pathname.

Purpose This command causes the server-DTP to transfer a copy of the file, specified in the

pathname, to the server DTP at the other end of the data connection.

Command RMD (*)

Syntax rmd <SP> <pathname> <CRLF>

Parameters <pathname>: an existing relative or absolute directory.

Purpose This command allows the user to remove a directory from the file system. It cannot be

used in the following cases:

• remove Trash or Root

• remove a file

• remove a directory which contains data.

Command RNFR

Syntax rnfr <SP> <pathname> <CRLF>

Parameters <pathname>: an existing relative or absolute pathname.

Purpose This command specifies the old pathname of the file which is to be renamed.

This command must be immediately followed by a RNTO command specifying the new file pathname.

Command RNTO (*)

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Syntax rnto <SP> <pathname> <CRLF>

Parameters <pathname>: a relative or absolute directory that does not exist yet.

Purpose This command specifies the new pathname of the file specified in the immediately

preceding RNFR command.

Together the two commands cause a file to be renamed. Can be used to move a file.

Command SITE

Syntax site <SP> <command> : an existing SITE command.

Parameters <some optional arguments...>: cf. each SITE command for details.

Purpose This command is used to implement custom FTP commands.

Command STOR (*)

Syntax stor <SP> <pathname> <CRLF>

Parameters <pathname>: an existing relative or absolute pathname.

Purpose This command causes the server-DTP to accept the data transferred via the data

connection and to store the data as a file at the server site.

If the file specified in the pathname exists at the server site, then its contents shall be replaced by the data being transferred.

A new file is created at the server site if the file specified in the pathname does not already exist.

Command STRU

Syntax stru <SP> <structure-code> <CRLF>

Parameters <structure-code>: file structure. Only 'F' (File) is supported.

Purpose This command allows the client to change the file structure.

The only available transfer mode is 'File' ('F').

Command SYST

Syntax syst <CRLF>

Parameters N/A

Purpose This command is used to find out the type of operating system at the server.

Its successful answer is "UNIX Type : L8”.

Command TYPE

Syntax type <SP> <type-code> <CRLF>

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Parameters - <type-code> ::= A [<sp> <form-code>]

| E [<sp> <form-code>]

| I

| L <sp> <byte-size>

<form-code> ::= N | T | C

Purpose changes data Representation and Storage type.

Supported types: 'A'(ASCII), and 'I' or 'L 8' (8-bit binary).

Command USER

Syntax user <SP> <string> <CRLF>

Parameters <string> : user name.

Purpose This command allows the client to be identified by the server.

It will be the first command transmitted by the user after the control connections are made.

It must be immediately followed by the PASS command. The command sequence USER+PASS is necessary to access to the server file system.

Supported FTP Commands

Any attempt to use this command when connected will be refused.

Note: (*) = Commands requiring the ROOT privilege.

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Quantum A-SERIES User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Figures

Preface

Overview

1Introduction

A-Series Tape Drives 1

2Using the FTP File Server

Getting Started: Setting Up the Network

Configuring the Tape Drive 2

Managing the Tape Drive Using a Web Browser

The Java Plug-in 2

Connecting to the Drive 2

Admin Menu Login 2

Using the Admin Menu Setup Page 2

Using the FTP Client Configuration Tab Settings 2

List of Servers Management 2

Setting Client Login Information 2

Multiuser Connection 2

FTP File Transfers

A-Series FTP Client 2

FTP Client Tab 2

File Panes 2

File Transfers 2

Transfer Queue Tab 2

Transfer Summary Tab 2

Duplicate File Name 2

Information Within the Panes 2

Contextual Menu 2

Partial restore allows you to define and later restore a part of an MXF AV

Creating MXF Header Files 2

File System Limitations 2

A-Series Best Practices

Networking Considerations 2

When Directory Updates Occur 2

File Naming Considerations 2

Third-Party FTP Clients 2

Apple Resource Forks and the A-Series 2

FTP Session Timeouts 2

Lossless Data Compression 2

Taking the A-Series on the Road 2

When All Else Fails 2

Additional Admin Menu Pages

• Date & Time

Change Admin Password 2

Versions 2

Update Server Firmware 2

Update Drive Firmware 2

Diagnostic Log 2

Reboot command

ATroubleshooting

Resetting System Defaults

SDLT 600A Drive Reset 1

LTO-3A Drive Reset 1

FTP File Transfer Troubleshooting

Root User 1

In Case of a Power Failure 1

In Case of a Write Error 1

Write Protect Cartridge 1

MXF Troubleshooting 1

Network Drive Limitation1

Summary Tab 1

Built-in FTP Client Troubleshooting 1

FTP Server Troubleshooting 1

Multiple Drive Environments 1

Supported FTP Commands

BFTP Commands