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Reference Guide
Published: May 2006Document Number: 6-00658-03 Rev. A
This manual contains reference information and instructions for configuring and operating the Scalar
Distributed Library Controller (Scalar DLC) software. This guide is intended for customers and
administrators who use the Scalar DLC software.
Explanation of Symbols and Notes
The following symbols appear throughout this document to highlight important information.
WARNING
CAUTION
Note
INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT
AVOIDED, COULD RESULT IN DEATH OR BODILY INJURY.
Indicates a situation that may cause possible damage to equipment, loss of
data, or interference with other equipment.
Indicates important information that helps you make better use of your system.
Other Documents You Might Need
The following documents are also available for this product. These documents can be found on the product
CD or at www.adic.com/manuals
•Scalar DLC Installation Guide
•Scalar DLC Release Notes (6-00335-xx)
•DAS Administration Guide (6-00345-xx)
:
•DAS/ACI Interfacing Guide (6-00346-xx)
•Scalar 10K SCSI Reference Guide
•Scalar 1000 SCSI Reference Guide
Scalar DLC Reference Guide1
•SCSI Primary Commands 2 (SPC-2)
•SCSI Primary Commands 3 (SPC-3)
•ROBAR Interfacing Guide
•Scalar 10K Operator Guide
•Scalar 1000 Operator Guide
•RMU Reference Guide
Getting More Information or Help
More information about this product is available on the Customer Service Center website at
www.adic.com/csc
frequently asked questions (FAQs). You can also access software, firmware, and drivers through this site.
For further assistance, or if training is desired, contact ADIC:
ADIC Technical assistance center (ATAC) in the USA:800-827-3822
ADIC Technical assistance center (ATAC) in Europe and Japan:00-800-9999-3822
For additional contact information:www.adic.com/contact
To open a Service Request:www.adic.com/techsup
. The Customer Service Center contains a collection of information, including answers to
2About This Guide and Your Product
Description
This chapter provides an overview of the Scalar DLC software that supports the Scalar 1000 and Scalar
10K (single- and dual-aisle) tape libraries.
The sections contained are:
•System Description
•Graphical User Interface
software.
•Command Line Interface
•Service and Maintenance Alerts
on page 3 provides the description of Scalar DLC system.
on page 8 briefly describes the main administration tool of the Scalar DLC
on page 8 provides an information about command line interface.
on page 8 describes the alert features of the Scalar DLC.
System Description
The Scalar DLC software runs as a service under Windows 2000/2003. It serves as a centralized library
management tool that simplifies and automates the tracking and management of all system resources for
optimal performance and maximum availability. The Scalar DLC software provides network and System
Administrators with a Java-based interface that allows library monitoring from anywhere on the Web.
Note
The Scalar DLC also allows administrators to select parameters that define which library events provide
notifications to customers and ADIC Technical Assistance Center (ATAC) via email and, sometimes, the
Simple Network Management Protocol (SNMP) alerts.
The main working tool of the Scalar DLC software is the Management GUI. Refer to Graphical User
Interface on page 8. This tool executes all the actions of management and configuration.
If a firewall is being used, outside access by Web browsers might be denied.
The Scalar DLC provides the connectivity between the library and the customer (client). The connection
type depends on client configuration. See Figure 1
Scalar DLC Reference Guide3
on page 4.
Figure 1Client Connection
The Scalar tape libraries are connected to the Scalar DLC software host via the SCSI bus or the Fibre
Channel cable. See Figure 2
Figure 2Physical Libraries connected to the Scalar DLC
.
For each tape library found during Scan SCSI Bus operation, the Scalar DLC software creates an object
called physical library. This object represents all aspects of the real tape device.
Logical Library Concepts
In order for clients to have a flexible way to share common resources (physical library), the Scalar DLC uses
virtual objects called logical libraries to represent the real device for the client. The Management GUI is used
to create and configure these logical libraries. The connection between the logical library and the device is
implemented by means of the partitioning features that are unique to the Scalar DLC software. The
partitioning operation creates a number of element ranges called partitions that are used by the physical
library. These ranges are then assigned to the logical libraries (see Figure 3
who uses a certain logical library can access the correct part of the physical library. This feature is very
useful when clients use a single physical library while the client has access to only a certain resource. The
logical library represents these resources, and the assigned partitions provide a connection between the
logical library and its physical equivalent.
4Description
on page 5) so that the client
This logical library concept is based on a partition containing the continuous range of elements of a single
type (for example, storage) and media domain (for example, DLT). The partitions cannot overlap; however,
a single partition can be assigned to two or more logical libraries. In that case, two logical libraries will have
a shared area, and the clients of the first library can access this area as well as the clients of the second
library.
CAUTION
Note
Figure 3Partitions and Logical Libraries
Two or more clients either of the same type (for example, DAS-based) or of different types (for example,
DAS-based and ROBAR-based) may use a single logical library. This means that they have rights to use
common resources that are part of this library (cartridges, drives, and so forth). See Figure 4
Sharing the single partition between two or more logical libraries may cause
access problems, so this feature must be used with extreme caution.
The partition cannot contain both storage tower and storage shelf elements, even if they
consist of the identical storage slots (for example, Generic DLT). This means for the
single-media library with a storage tower (for example, Scalar 10K), no less than two
storage partitions should be created in order to cover its storage area completely; the
first partition will cover the tower, and the second will cover the linear storage (storage
shelves).
.
Figure 4Clients and Logical Libraries
PC System Requirements
The minimum PC system hardware requirements are based on Microsoft PC 2000 System Design Guide
Specifications. The following list summarizes the Scalar DLC system requirements:
Required:
•800 MHZ or faster Inter Pentium
•256K L2 Cache
•256 MB RAM
•Dual matched Hard Drives (10GB or more)
•CD RW
•3.5" Diskette Drive
TM
or equivalent CPU (minimum 4 free PCI slots in chassis)
for a description of SCSI and Fibre Channel adapters that can be used in the system.
Table 1SCSI and Fibre Channel Adapters
AdapterTypeConnection (external)Max cable length, m
LSI 20860SCSI50-pin high density SE5
LSI 8751DSCSI68-pin high density HVD25
LSI 8951USCSI68-pin very high density LVD/SE12(LVD), 5(SE)
QLA 2200Fibre ChannelSC duplex multi-mode-
QLA 23xx
Local
a. ‘xx’ means 00, 10, 40, and 42. No other models are currently supported.
b. The driver is designed by ADIC to execute the SCSI backup applications right on the Scalar DLC server PC. No SCSI/FC
a
Fibre ChannelSmall form factor multi-mode optic LC-
b
hardware is required.
SCSI--
Redundant Solution Requirements
The Scalar DLC Redundant (failover) solution is provided using the Microsoft Cluster service. The user has
a shared disk with the Scalar DLC database and two hosts with the installed components of Scalar DLC
software; for redundancy reasons, one host is online and the other is offline. If an error occurs and the online
host goes offline, the other host turns online immediately, so the customer even does not notice a problem
with the host. The customer engineer can repair the problem host without stopping the Scalar DLC software.
The Scalar DLC Redundant solution is based on Microsoft Cluster service. The special requirements are:
•Two PCs, each meeting the standards described in PC System Requirements
on page 5.
•Microsoft Windows 2000 Advanced Server or Windows 2003 Server installed on each PC.
•Microsoft Cluster Service installed on each PC.
•For each PC, there should be a minimum of two disk controllers. The two disk controllers do not
need to be the same type. For example, using on-board IDE and SCSI is acceptable.
•At least one external (shared) RAID disk. The disk partition should have NTFS formatting.
•RAID adapter (on each PC) to access a shared disk.
The Scalar DLC failover solution in a redundant configuration requires the
CAUTION
Windows 2000 Advanced Server or Windows 2003 Server operating system.
By default, this system is configured without password protection for network
access. So ADIC strongly urges companies using this product to use all
customary procedures to protect Scalar DLC servers from external threats.
6Description
For the details about Scalar DLC Redundant solution, refer to the Scalar DLC Installation Guide.
Tape Library Requirements
The library firmware and hardware requirements are described in this topic.
Operating mode
For the Scalar 1000 library, the following operating modes are supported:
•Native
•EXABYTE compatibility
•Storage Technology compatibility
•EMASS compatibility
For the Scalar 10K library only native mode is supported.
For the Scalar 10K DA (dual-aisle) library:
•Both medium changers (aisles) must run in native mode.
•Both medium changers (aisles) must operate in non-compressed mode.
•At the time of the first configuration, both medium changers (aisles) must be in the online state. Ready state is not required.
CAUTION
Additionally, for the libraries with towers (Scalar 10K and Scalar 10K DA):
•At the time of the first configuration all towers (if any) must be in the library (online) state.
The Scalar DLC software may not work properly if the tape library operates in
the unsupported mode.
Firmware Version
Make certain the firmware version of each tape library meets the Scalar DLC requirements (Table 2).
Table 2Required Firmware Version
Tape LibraryRequired FirmwareComment
Scalar 1000641A or laterIf the current version is 2.3 or earlier, contact
ATAC. A customer engineer will upgrade the
library with the appropriate firmware version.
Scalar 10K300A or later
Scalar 10K DA300A or later (for both robots)
Remote Browser Requirements
The Scalar DLC Management GUI takes advantage of very advanced Java2 features that are not supported
by all browsers. The browser updates can be initiated from the Scalar DLC software splash page by
selecting the Tools and Utilities tab. Refer to Figure 7
Scalar DLC Reference Guide7
on page 13 and Browser Pre-Installation on page 11.
Graphical User Interface
The Scalar DLC software GUI (also called Management GUI) is based on Web browser technology that
guarantees a consistent user interface across all UNIX and Windows platforms. The GUI is available to
users, system administrators, and customer engineers. The Management GUI consists of the following
components:
•Main Menu bar
•GUI Tabs
•Library tab
•Configuration tab
•Events tab
•Service tab
•GUI Log
Each component is covered in detail in the following chapters.
Command Line Interface
The command line interface is supported by the DAS version 3.12 SP2 application. The DAS interface
supports numerous third party software applications.
Additional information about DAS is contained on this CD-ROM in the DAS Administration Guide document.
Service and Maintenance Alerts
The Scalar DLC software monitors all system resources and automatically notifies the ADIC Technical
Assistance Center (ATAC) whenever a service call is required. The information supplied to ATAC includes:
•Error detection
•Event logging and tracing
•Error recovery
Notification is generated by means of applications in the following list:
•GUI Messenger
•Email Home
•Call Home
•SNMP
Each component is covered in detail in the following chapters.
8Description
Configuration
This chapter provides information about logical configuration of the Scalar DLC system for the customer.
Note
The sections are:
•Autostart Installation
•S
calar DLC Management GUI on page 9 contains information on launching the Management GUI.
•Configuration
Local administrator rights are required to install the Scalar DLC software and all required
components.
on page 9 describes the installation order.
on page 16 describes the configuration order.
Autostart Installation
To launch the autostart program, load the CD-ROM in the CD-ROM drive. If the autostart program does not
launch, use the Run option from the Start button on the task bar to execute the autorun.exe program.
For a description of the installation process, refer to Scalar DLC Installation Guide.
Note
The Adobe Acrobat Reader version 4.0 or later is required to view the documentation in
PDF format. Download the most recent version of the software from the Adobe Web site
at http://www.adobe.com
.
Scalar DLC Management GUI
The Scalar DLC Management GUI is started by either the browser-launched applet or the supervisory
desktop application. Before using any of them, determine that the Scalar DLC service is running.
Note
To check the service state (refer to Table 3
the task bar.
Scalar DLC Reference Guide9
Before starting the Management GUI, verify that the display resolution setting is 800 x
600 pixels or higher and the display color setting is more
on page 10), examine either the Control Panel > Services or
than 256 colors
Table 3Scalar DLC Service State
Task IconDescription
The Scalar DLC supervisor service is stopped (Offline for the Scalar DLC Cluster
solution). Double click the icon to display Figure 5
The Scalar DLC supervisor service is started (Online for the Scalar DLC Cluster
solution). Double click the icon to display Figure 5
The Scalar DLC supervisor service is either starting or stopping (turning online/offline
for the Scalar DLC failover solution).
Figure 5About Scalar DLC
.
.
The About dialog shows the version of installed Scalar DLC software and its internal components. All Scalar
DLC hot fixes and service packs (if any) are enlisted here, too.
Resizing Windows and Panes
Some Management GUI panes contains data that cannot fit into the standard screen string (for example,
long names of SCSI Adapter objects, or partitions), or a long list of properties that would be useful to see
all in one screen without scrolling. Especially for such cases both the browser-based and application-based
Management GUI allow you to modify the size of the main Scalar DLC window screen as well as to resize
some internal Scalar DLC panes.
Note
Do not reduce the Scalar DLC screen below its original size.
10Configuration
Browser Pre-Installation
Both Netscape Navigator and Internet Explorer browsers must be updated by installing the Java Plugin, as described in Java Plug-In
a remote browser, the update is required before the browser can launch the Scalar DLC software. For a
local browser, the update could be executed manually; but it is best practice to install the browser(s) before
launching the Scalar DLC software installation. The update steps should be executed by either a system
administrator or an expert PC user.
on page 14, to take full advantage of the Scalar DLC Management GUI. For
Note
Start the update procedure by entering the Host name location of the Scalar DLC software server on the
browser address line (for example, http://computer). This establishes a connection with the Scalar DLC
software home page. Refer to Table 4
CAUTION
Table 4Scalar DLC Home Page Name
Name / IDValue (example only)Explanation
DNS host
name
Cluster namesdlcclusterThe cluster virtual name (redundant solution only),
DNS address192.168.1.14The host network IP address, refer to the Scalar DLC
The Internet Explorer browser is a required component for the Scalar DLC software
installation. If Internet Explorer is not present, the Scalar DLC CD autorun program
installs Internet Explorer as a part of the Scalar DLC Installation process. No preinstallation is required for a complete installation.
and Figure 6 on page 12.
If the Scalar DLC software is installed with SSL support (refer to the Scalar
DLC Installation Guide), always use https:// instead of http://.
computerThe host network name used in DNS.
refer to the Scalar DLC Installation Guide.
Installation Guide.
Cluster DNS
address
Scalar DLC Reference Guide11
192.168.1.10The virtual cluster IP address (redundant solution
only), refer to the Scalar DLC Installation Guide .
Figure 6ADIC Scalar DLC Home Page
The only required component for the browser update is a Java Plug-in. Click the Launch Java Interface
button when it appears. Refer to Java Plug-In
Selecting the Tools and Utilities tab displays the Tools and Utilities pane (see Figure 7
on page 14 for the description of update process.
on page 13).
12Configuration
Figure 7Tools and Utilities Page
The latest required versions of both Netscape Navigator
downloaded from this page.
Note
The Scalar DLC Management GUI that is designed to launch the Scalar DLC software application from a
remote host can be downloaded also. The installation steps of the Scalar DLC Management GUI are
described on this page as well.
Do not download the browser unless your browser version (always shown under Help >
About) is lower than required.
and Internet Explorer browsers can be
Remote Management GUI
The Java-based GUI software is used as a Scalar DLC management tool. It is always installed on the Scalar
DLC server, however the same software can be downloaded from server and launched from a remote host
as well.
From the Tools and Utilities page (see Figure 7
archive containing all files for the remote Management GUI. The “How to install“ link contains the complete
instruction on how to install the package and launch the application.
Also download and install the Java Plug-In, as described in Java Plug-In
) click on “Install Java Application" and download the zip
on page 14.
Scalar DLC Reference Guide13
Java Plug-In
When running versions of Netscape Navigator prior to version 4.7, the Scalar DLC Management GUI
requires the Java 2 plug-in 1.4.2_09 release. Installing the plug-in enables direct Java2 applets to run while
using Sun’s JRE (Java Remote Environment). Therefore, the j2re-1_4_2_09-windows-i586-p.exe file must
be executed so that files are added to a specific directory.
Begin the procedure by selecting the hyperlink associated with the Java Plug-in. Save the file to a temporary
directory and then launch it.
The same update procedure should be executed when the Management GUI is used with the remote Scalar
DLC host.
Note
The Java plug-in patch is also required for both the Microsoft Internet Explorer and
Netscape Navigator browsers when the user desires to use the applet-based GUI (refer
to Launch the Management GUI from a Browser
based (Launch the Management GUI as an Application
However, the MS IE browser installs the Java plug-in patch automatically when the
browser-based Management GUI is launched for the first time.
The Netscape Navigator browser needs to be updated manually.
on page 14) rather than application-
on page 15).
Launch the Management GUI from a Browser
Enter the Hostname location of the Scalar DLC server on the browser. This procedure establishes a
connection with the Scalar DLC home page. See Figure 6
Note
When the Scalar DLC home page appears, press the Launch Java Interface button. The Scalar DLC
Logon dialog window appears (see Figure 8
Figure 8Scalar DLC GUI Logon Dialog
Disk write operations (upload) are not allowed from the browser-launched Scalar DLC
Management GUI due to security restrictions.
).
on page 12.
The default login settings are shown in Table 5
Table 5Management GUI Default Users
Default user nameDefault passwordAccess level
adminpasswordAdmin (administrator)
atacguardianCE (customer engineer)
14Configuration
.
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