
2
Introduction
Thank you for purchasing the Buffalo CloudStor. This simple device gives you the exibility
of cloud-based storage without the worries that come with storing your important data
on someone else’s servers. Using Pogoplug software, the CloudStor lets you serve up les,
photos, and multimedia over the Web to any of your devices, wherever you may be.
Turn to page 4 to set up your CloudStor.
Because we’re constantly updating our products, the images and text in this manual may vary
slightly from the images and text displayed by your CloudStor. As time passes, future user
interfaces, updated software, and later versions of this manual may be available for download
from www.buffalotech.com. For more information on CloudStor, see buffalocloudstor.com.

3
Table of Contents
Introduction
Setup 4
Diagrams and Layout 7
Power Mode Switch 10
Using your CloudStor
Login 11
Uploading 12
Downloading 13
Pogoplug Applications 14
Sharing 15
Search 18
Slideshows 19
Creating New Folders 20
Renaming Files and Folders 21
Renaming Devices 22
Active Copy 23
Settings and Conguration
General Settings 24
Social Settings 25
Media Settings 27
Security Settings 29
Upload Settings 30
Adding a Printer 31
Device Settings 34
Local Settings 35
Adding a Second Drive 38
Time Machine 40
BitTorrent Client 44
Direct Copy 46
Troubleshooting
Status LED Flash Codes 47
Appendix
Specications 49
Contact Information (USA) 50
Contact Information (Europe) 51
GPL Information 52

4
Open a browser window on your computer and go to https://mycloudstor.com/. Click Set Up
Your CloudStor.
Plug one end of the included Ethernet cable into the Ethernet port on your CloudStor and the
other end into any available LAN port on your router.
In the browser window, click Next.
Setup
USB
FUNCTION
AUTO
ON
OFF
DC-IN
LAN
LAN
WAN
LA N
LA N

5
Now, plug your CloudStor into a surge protector, wall socket, or power strip.
Move the power mode switch on the back of the unit to the on (middle) position. The blue power
LED will begin to blink.
Wait for the CloudStor to boot. This will take about 5 minutes. When the power LED on the
front panel stops blinking and glows steadily, the unit has nished booting. The Info/Error LED
should not be blinking. If it is, turn to the next page to troubleshoot.
In the browser window, click Next. Follow the instructions on the screen to nish installing your
CloudStor.
USB
FUNCTION
AUTO
ON
OFF
DC-IN
LAN

6
If you’ve connected your CloudStor to a power source and to a router, but the Info/Error LED
is ashing amber or your CloudStor suddenly turned off by itself, here are some things you can
check:
Is the power mode switch on the back of the CloudStor in the On position? If it’s in the Auto
(top) position, the CloudStor may suddenly shut down after a few minutes. Move it to the On
(bottom) position until you’ve installed NAS Navigator software on your computers.
Is the Info/Error LED on the front of your CloudStor ashing amber? Check the following:
Is the Ethernet cable connected to your CloudStor and to your router?
Is your router turned on?
Is your router congured to automatically assign IP addresses (DHCP)?
Do you have a rewall installed that blocks UDP, or is UDP disabled on your router?
If you have veried all of the above and the Info/Error LED on the front of your CloudStor is
still ashing, please move the power mode switch to the Off position, wait until the Power LED
turns off, and then move it back to the On position. It will take several minutes to boot.
If you continue to have problems, please contact tech support. Tech support contact
information is available on pages 50 and 51.
Troubleshooting

8
Back Panel Layout
Front Panel Removed
Spare drive bay
for optional 2nd
drive
Main hard drive
Press tab to
release drive

9
Front Panel Layout
Rear
Function Button
USB
Fan
Auto Power
Power On
Power Off
Ethernet
(to router)
Power
Socket for
Kensington-style lock
Power cord
stress relief

10
The “Power Mode” switch on the back of the
unit has three positions: Auto, On, and Off.
The Auto position automatically powers the
unit on or off with your PC. If your PC is turned
on the CloudStor will power up; if the PC is
turned off the CloudStor will power down.
You must have installed the NAS Navigator
software (available from www.buffalotech.com)
on your PC for this feature to work. Otherwise,
if you move the switch to Auto, your unit will
power down by itself and you will have to
manually turn it back on.
Move the switch to the On (middle) position to
have the CloudStor turn on and stay on.
To turn off the CloudStor, move the switch to
the Off position. It will take several minutes to
fully shut down. Do not unplug the unit until
shutdown is complete and the power LED is no
longer lit.
Power Mode Switch
Power
Mode

11
Using Your CloudStor
Login
To access your CloudStor, open a browser and
go to https://mycloudstor.com. Enter the email
address and password that you registered
during setup.

12
Using Your CloudStor
Uploading
Locate the drive and folder you would like to
upload to. If this is your rst time using the
CloudStor, click on the Public folder at the
bottom left of the window.
Click Upload Files on the toolbar at the bottom
of the screen.
When the upload les dialogue appears, select
Add File(s) and choose the le(s) you would like
to upload.
Click Upload.

13
Locate the folder or le you would like to download and
point to it with your mouse pointer.
If you’re in List view, the control icons will appear to the
right of the folder in the “Actions” column. In Thumbnail
view, they’ll be at the bottom of the folder icon. In either
view, click the icon that is an arrow pointing down.
When the save le dialogue box appears, click OK to
save the le. The le will save to the download location
specied in your browser preferences. If you are
downloading an entire folder, it will be compressed to a
.zip le automatically before download.
Downloading

14
Pogoplug Drive software allows your CloudStor
to appear to your computer as a directly
attached drive. You can see and access all
drives and folders shared with you via the Files
Shared with me folder. This works whether
you are on the local network or outside of it.
Pogoplug Mobile software for iPhone, iPad,
and Android devices give you the ability to
access les on your CloudStor from anywhere,
anytime on your mobile device.
To download the Pogoplug applications visit
www.buffalocloudstor.com/support/downloads.
Note: Because the software is client based
and the CloudStor drives are not physically
attached to your computer, there are some
limitations to what you can do with them. For
example, CloudStor drive maintenance through
the software is not supported.
Pogoplug Applications

15
Sharing on your CloudStor is quick and easy. You can share with one or
multiple people.
To share a drive, folder, or le:
1. To share an entire drive so all folders and les are shared, select the
drive at the bottom left of your screen.
2. Next, click Share This on the menu bar at the bottom of your screen.
3. To share a folder on the drive, or an individual le, click the green
Share icon. Depending on what view you are in, this icon will appear
either to the right of the folder or le in the “Actions” column or at the
bottom of its icon.
4. If you click on Share This or Share, the sharing options window will
open at the bottom of your screen.
5. Check the box next to Turn on sharing.
6. Enter the email address of the person you would like to share the
folder with in the textbox located under “Invite People” and click Invite.
You may share with multiple people by adding multiple email addresses
separated by either a comma or semicolon. Email addresses you enter
are saved into the address book for easy access.
Sharing

16
7. You have the option to send a message to the user you are sharing
with by clicking Include a personalized message. A text box will appear
where you can type your message.
8. The email address of each person you are sharing with will appear in
the table under “People this folder is shared with”.
9. If you would like to allow a person you are sharing with to upload les
(giving them “write” privileges), select Full access from the drop down
menu next to their email address.
10. A link will be emailed to the users you have shared with. If you
have given them write privileges, they will need to create a password for
themselves. If they do not create a password, they will not be able to
upload to the shared folder.
Note: The link to the shared folder will expire 2 weeks from the time
it was generated and sent. If the user it is being shared with has not
created an account and password they will no longer be able to access
the share. If the owner of the share removes them from the share list
and adds them again, a new link will be generated and sent with a 2
week expiration.

17
To stop sharing a drive, folder, or le:
1. Select the drive, folder, or le.
2. Click Share This or Share to open the
sharing options window.
3. To stop sharing the drive, folder, or le
with anyone, uncheck Turn on sharing.
Or, click the next to an individual email
address to stop sharing with that person.

18
You can use the global search categories Movies, Photos, and
Music on the top left side of the screen to display all of the
movies, photos, and music that are on your CloudStor. Click
on a category and the interface will display all of the les in
that category.
The Movies category and the Photos category include a button
at the top right of the screen that allows you to display your
movies and photos by date.
The Music category includes buttons at the top right of the
screen that allows you to sort your music by songs, artists,
albums, and genres.
The Movies, Photos, and Music categories also include a
button on the top right corner of the screen that allows you to
sort your les by the source location.
If you nd a le that you would like to locate on your hard
drive(s), but cannot remember exactly where it is located,
hover the mouse pointer over the le and click the folder icon.
Search

19
You can create slideshows that include your favorite photos, videos, and
music.
To create a slideshow follow these steps:
1. Select Create Slideshow from the menu at the bottom of the screen.
2. Enter a name for the new slideshow in the popup window.
3. To add les to the slideshow, drag them from the bottom panel to the
upper panel.
4. When you are nished adding everything to your slideshow, click
View Slideshow at the bottom of the screen to play the slideshow.
Slideshows

20
In the drive navigation bar at the left of the screen,
select the drive and directory where you would like
to create the new folder.
Click More Actions at the bottom of the page. Then
click Create Folder.
Give your new folder a name.
Creating New Folders

21
Focus your mouse pointer on the name of the folder or
le you would like to rename and click it. You can then
change the name of the le or folder.
In list view, click the “abc” icon next to the name to change
the name of the le or folder.
Renaming Files and Folders

22
Click the Settings tab at the top of the window.
You will see a list of your CloudStor devices. Next to each
device there is a rename link. Click the link to enter a new
name. Note that the “Public” folder cannot be renamed.
Renaming Devices

23
Active Copy automatically backs up a folder to a different folder.
Source and target folders may be on your CloudStor, or on a
different CloudStor or other Pogoplug device. If you have installed
Pogoplug drive software on your computer, you can also use it
with Active Copy.
To congure Active Copy, click on Active Copy in the left-side
menu. Then click on Set up Active Copy on a new folder.
Choose the source folder on the left and the target folder on the
right. Click OK when done.
Depending on how many les are in the source folder and the
speed of the network between the two devices, it may take some
time for Active Copy to complete.
Active Copy

24
From the settings window you can update your email addresses and
manage the CloudStor device(s) associated with your account.
You may associate multiple email addresses with your account. Each
email address has full access to all drives and shares associated with
the account.
To add additional email addresses to your account, simply click the
add link next to “Your email addresses”.
General Settings
Settings and Conguration

25
To allow posting to Twitter, Facebook, or MySpace from
your CloudStor, log in to the appropriate service in
Social Settings. To log in to a service, click sign in and
step through the wizard.
Once you’re logged in, you can share drives, folders,
and les on your social networks. Select a drive, folder,
or le and click Share This or Share to open the sharing
options window.
Click on the More sharing options tab. Put a check in
the box next to each social network that you want to
publish to.
Social Settings

26
Enter text for your post and click OK. Your text will be
posted to the chosen social network(s), with a link to
the drive, folder, or le that you’re sharing.

27
You can use CloudStor to stream movies, photos, and music
to your XBox 360 and PS3 game consoles and to the game
consoles of people you share with. You can also play back
media les from the CloudStor with a computer browser
if Flash is installed. The Media Settings screen also allows
you to customize the options for how the CloudStor handles
videos. There are 3 options: optimize videos for playback
(convert into web friendly H.264 encoding), create media
meta-data (fetch music album art, iPhoto dates, etc.), and
generate thumbnails (which allows for previewing). All of
these options can be turned on or off. Click Apply Below
Changes to conrm your choice.
You have the option to manually optimize videos for
playback. Click Show movies that have not been optimized
for playback, select your desired videos from the popup
menu, and click OK.
Media Settings

28
You can preview a video by hovering the mouse pointer over
the thumbnail for a video. You can turn off this feature on
the Media Settings page by unchecking Preview videos when
hovering over video thumbnails. HTLM5 is supported for
compatible Web browsers. Select the HTLM5 video or audio
checkbox to enable this feature.

29
Changing your Password
Click “Change Password” to change the
password associated with your account.
Full Security
Check the box next to Use full security sessions
to enable SSL (HTTPS) throughout your entire
CloudStor session. Enabling this option may
slow down access to your CloudStor. Note that
even if this option is disabled, you will always
automatically sign in with full security, keeping
your password and account access safe.
Security Settings
Require sign-in to view email shares
Check the box next to Require sign-in to view email shares to require the people you share with
to enter a password before viewing the contents of the share. If they have not previously assigned
a password with CloudStor, they will be prompted to add one. This feature can also be enabled
after you select the le or folder you would like to share by clicking Share This, then More sharing
options. Check Require sign-in to view this share.

30
You may congure your CloudStor to
automatically upload les that are emailed
as attachments to upload@mycloudstor.
com. Check the box next to Upload my email
attachments to.
Choose a folder to store uploaded attachments,
then click OK.
Upload Settings

31
The CloudStor supports most Epson and HP printers
manufactured since 2005. The printer should be
directly connected to the USB port on the back of the
CloudStor.
You can print documents that are stored on your
CloudStor to a supported printer that’s attached
to the CloudStor. To enable this feature, go to Print
Settings and check Enable printer discovery.
Select your CloudStor from the drop-down menu and
click OK. You can then print documents stored on
the CloudStor by clicking on the printer icon on the
document’s icon.
Adding a Printer

32
Enabling Print my email attachments to allows
you to print les to the printer connected to your
CloudStor by sending or forwarding an email from
your registered email address with the les you want
printed to print@mycloudstor.com.
Select the destination printer from the drop-down list
and click OK.
Any email attachment sent from your current
CloudStor email address to print@mycloudstor.com
will now print to the selected printer.
You can also allow others to print to the printer
connected to your CloudStor by giving printing rights
to their email addresses. To share the printer with
someone else, click on your printer at the bottom
left of the window. Click Share This at bottom of the
screen. Enter an email address in the Invite People
eld. To include a note (optional), click Include a
personalized message.

33
Click Invite. The person you’ve invited can now print
documents by sending them as attachments to print@
mycloudstor.com.
To view your shared printers, click Printers I share
from the left-side menu.

34
Click Manage to open local settings or
BitTorrent to open BitTorrent settings.
Device Settings

35
The local settings may be accessed remotely via
the Device Settings page or locally as follows:
Use NAS Navigator2 to nd the CloudStor
on the network. By default, it will be named
CS-WXabc or CS-WVabc where “abc” is the
last three digits of the MAC address of the
CloudStor. Right-click and choose open web
admin. Log in to the CloudStor. The default
password is “password”.
BitTorrent - The BitTorrent folder is
automatically created on the drive. If the
CloudStor is in JBOD mode, then the
BitTorrent folder is created on disk 1. To
Local Settings
use BitTorrent, enter a username and password. By default, the username is “admin” and the
password is blank (no password).
Backup - (Time Machine) The folder “timemachine” is automatically created on the drive. In JBOD
mode, the folder is on disk 1. This folder is not visible from Windows. Time Machine targets can
be added and removed from the UI.

36
LAN Access - You may enable or disable local network access to shares on the CloudStor here.
Password - This is the login password for the local UI. It’s not related to the Cloud account. To
change the login password for your CloudStor, enter a new password here (twice) and click Save.
The default password is “password”.
Date/Time - You may set the date and time on the CloudStor manually or automatically. If
setting manually, enter a time zone, date, and time. Click Use Local Time to use the time from
your computer. Click [Save] when done.
Network - You may congure the IP address settings on the CloudStor manually or
automatically. Automatically (via DHCP) is recommended for most users. If Manually is selected,
enter the appropriate network settings and click Save. This setting can only be changed when you
are connected to the CloudStor locally as described above.
Storage - You may recongure the hard drive settings for the CloudStor here.
Notications - Enable Email Notication to have your CloudStor automatically send you an email
if errors occur. Click Add to enter the email addresses that notication will be sent to. Choose
which events (Hard Drive Status, Fan Failure, and/or Disk Error) will trigger a notication. Click
Send Test Message to send a sample email to registered addresses, or Save to save your changes
and exit. Note: if your notication emails don’t seem to arrive, check your junk folder!
Maintenance - Clicking Restore restores your CloudStor to its factory default settings. Normally,
this doesn’t affect data stored on the drive. However, you may choose to check Erase data before
clicking Restore, which will erase all data on the drive, restoring the CloudStor to factory-fresh
condition. If you choose to erase data, it may take several hours to complete.

37
Clicking Rebuild Media Library will recreate thumbnails and re-transcode your videos and movies.
Active copy jobs to or from folders on the CloudStor will need to be restarted. This operation
cannot be stopped or reversed.
Note: Restore and Rebuild Media Library can only be used when you are connected to the
CloudStor locally.
Updates - If enabled, the CloudStor will be automatically updated with the latest rmware. This
is enabled by default.
Status - This gives you current system settings for your CloudStor and information about the
network.

38
You may add a second drive to the CloudStor for
additional storage or data security. For RAID 1
mirroring, the second drive should be the same as or
larger capacity than the original drive.
To add a second drive, turn the CloudStor off and
remove the front panel. Insert the new drive into the
open bay (for RAID, the new drive should be the same
or larger capacity than the existing drive). Power the
CloudStor on and go the the local user interface at
http://x.x.x.x/, where x.x.x.x is the IP address of your
CloudStor. The new drive will be listed in Storage.
Click on Change Disk Settings. Select either Keep
Adding a Second Drive
them independent of each other or Group them (Disk Mirroring).
If independent, the new drive is formatted and the original drive is unchanged. The info/error
LED ashes amber until the format is complete.
For RAID 1, the new drive is formatted into a mirror of the original drive. Data from the original
drive will be stored on both drives simultaneously. The info/error LED ashes amber until the
process is complete.

39
To replace a failed drive, go to the local user interface at http://x.x.x.x, where x.x.x.x is the IP
address of your CloudStor. See which drive failed. Turn off the CloudStor and replace the bad
drive. Turn the CloudStor back on and let it boot up. In the local user interface, click on After
replacing the drive, click here. The array will be rebuilt.
To remove a drive that has not failed, put the drives into Independent mode. In the local user
interface, select that drive to remove and click on remove disk. Power down the CloudStor and
physically remove the drive.
In Independent mode, the disks are independent. They may contain different data. The full
capacity of both drives is usable. There is no redundancy. If a drive fails, all data on that drive is
lost.
In RAID 1, disk mirroring provides fault tolerance but also decreases overall capacity. An array of
drives is created and the system saves the data to both hard drives in the array simultaneously. If
a drive fails, the healthy drive continues to work and your data is accessible without interruption.
Once the faulty drive is replaced and the array is rebuilt, the array is restored to its original
condition.
When changing from Independent mode to RAID 1, you have three options:
Keep the data from disk 1 (left drive in chassis)
Keep the data from disk 2 (right drive in chassis)
Don’t keep any data
When changing from RAID 1 to Independent mode, all data is lost.

40
To use the CloudStor as a location for backups from a
Mac running Time Machine, begin by navigating to Device
Settings/Backup in the local user interface and clicking Add.
Enter the “Computer Name” assigned to the Mac (from its
Sharing page) as the Hostname. For the MAC address,
enter the Ethernet ID of the Mac from Advanced Settings
in its Network Preferences page. See the next page for
instructions on nding the right values for these elds.
Click Add when done.
Time Machine

41
For the Hostname eld, enter the “Computer Name” from
the Sharing page on the Mac. Navigate to this page by
selecting Sharing in System Preferences. To work with
Time Machine, the Computer Name should contain only the
following characters: 0123456789abcdefghijklmnopqrstu
vwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ. Spaces,
underscores, and other characters should not be used if Time
Machine is to function properly.
For the MAC address eld, enter the Ethernet ID from
Advanced Settings in the Network Preferences page on the
Mac. To get to this page, go to System Preferences and select
Network. Highlight Ethernet on the left side and click the
Advanced button. Click on Ethernet at the top right. If more
than one Ethernet ID is listed, use the rst one.

42
It will take several minutes for the Time Machine image le to be
created. To be safe, wait three minutes before continuing.
After three minutes have passed, open the Finder. Click on All
below Shared. Find your CloudStor in the window and doubleclick on it. It will now appear below Shared on the left-side list.
Close the Finder.

43
Open Time Machine. Click on Choose Backup Disk.
Choose your CloudStor from the list and click Use
for Backup. In 120 seconds, Time Machine will begin
running a backup.

44
The built-in BitTorrent client on CloudStor will
download your les for you. To enable it, select
Enable. Click Apply.
Then, click Open Download Manager.
Enter your BitTorrent username and password.
This is not the same as your CloudStor
username and password. The default
BitTorrent username is “admin” and the default
password is blank (no password).
BitTorrent Client

45
To add a torrent, click on the green download icon at the
top left. The Add Torrent dialog will open. Click Browse,
navigate to the torrent le, and open it, or enter the URL
of the torrent in the Torrent URL eld. Click OK.
The le(s) will automatically download in the background.

46
You can copy digital media les directly to the
CloudStor from a USB storage device, such as
a digital camera, USB ash drive, or external
hard disk.
Connect your USB device to the USB port on
the back of the CloudStor. The function LED
on the front of the unit will glow blue for 60
seconds.
Direct Copy
While the function LED is still glowing blue, hold down the function button for 3 seconds. All
les on the USB device are copied to the “directcopy” folder on the CloudStor.
Note: If the function LED does not glow blue when the device is connected, then the device is not
compatible.
Function
buttion

47
LED Error Codes:
If an operation error occurs, the info/error LED will ash red. It will alternate between ashing
for 1 second (tens digit) and 1/2 second (ones digit). Combine the number of longer ashes with
the number of shorter ashes to produce a two digit error code:
E00 - (no ashes) MPU failure
E01 - DRAM data line problem
E02 - DRAM address line problem
E03 - RTC chip error
E04 - failed to extract kernel
E06 - corrupted rmware
E07 - a hard disk was not found
E10 - UPS error
E11 - fan error
E15 - hard drive I/O error
E16 - no hard disks detected
E17 - internal controller error
Troubleshooting
Troubleshooting

48
E20 - circuit board error
E21 - internal controller error
E22 - mount error
E23 - hard disk is malfunctioning
LED Information Codes:
The info/error LED will ash amber to give information codes. Like the error codes, these
alternate between ashing for 1 second (tens digit) and 1/2 second (ones digit). Combine the
number of longer ashes with the number of shorter ashes to produce a two digit information
code:
I19 - erasing disk
I23 - initializing system
I25 - updating rmware
I26 - initializing Web conguration
I27 - checking USB disk
I28 - formatting USB disk

49
Hard Drive: 3.5” SATA
Ethernet:
10/100/1000 Mbps RJ-45
USB Interface: USB 2.0/1.1
Replacement Fan: OP-FAN/LS
Replacement Power Supply: OP-AC12L
Power Supply: 100-240 V 50/60 Hz
Client OS Support: Windows
® 7 (32-bit/64-bit), Windows
Vista® (32-bit/64-bit), Windows XP,
Windows Server® 2003/2008, Windows
Server® 2003/2008 R2, Mac OS® X 10.4
or later
Power Consumption: ~17 W average; ~48 W max
Dimensions: 5.0” x 3.4” x 8.1” (127 x 86 x 206 mm)
Weight: ~3.3 pounds (1.5 kg)
Operating Environment: 41°-95° F, 5°-35° C; 20-80% non-
condensing
Mac and Mac OS are trademarks of Apple Inc., registered in the U.S. and other countries. Windows is a registered trademark of Microsoft Corporation in the United States and other countries.
Specications

50
Buffalo Technology USA Inc.
11100 Metric Blvd., Suite 750
Austin, TX 78758
GENERAL INQUIRIES
Monday through Friday
8:30am-5:30pm CST
Direct: 512-794-8533 | Toll-free: 800-456-9799
Fax: 512-794-8520 | Email: sales@buffalotech.com
TECHNICAL SUPPORT
North American Technical Support by phone is available 24 hours a day, 7 days a week. (USA
and Canada).
Toll-free: (866) 752-6210 | Email: info@buffalotech.com
Contact Information (North America)

51
Buffalo Technology UK Ltd.
2 Bracknell Beeches, Old Bracknell Lane
Bracknell, Berkshire, RG12 7BW
United Kingdom
GENERAL INQUIRIES
Email: sales@buffalo-technology.com
TECHNICAL SUPPORT
Buffalo Technology provides technical support in English, German, French, Italian and
Spanish. For opening hours and relevant telephone numbers, please go to:
www.buffalo-technology.com/contact
Contact Information (Europe)

52
Source code for Buffalo products is available at http://opensource.buffalo.jp
GPL Information (North America)
GPL Information