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ATTO Technology Inc. FastStream VT 5300 Installation and Operation Manual
4.0 Modify storage
Use the FastStream GUI to replace a failed drive, add new drives or redesign VTL configurations.
The FastStream GUI takes you step by step
through many procedures which allow you to
modify your storage and VTL. Read all notes and
cautions carefully as you go to ensure the best
performance and use of your storage.
For every Virtual Tape Library created on the
FastStream VT 5300, an underlying RAID Group
is created from the selected drives to provide the
physical storage medium for the virtual tape
cartridges.

Initialize and verify drives

When you initially set up the FastStream, replace
a failed drive or add new drives to the FastStream,
perform drive initialization and verification to
ensure the integrity of these drives.
When the drives are selected, the ATTO
FastStream VT 5300 writes a pattern to the entire
drive; the drives may then be read back and
verified for integrity to fix soft errors and
reallocate bad blocks on your existing drives.
CAUTIONCAUTION
Selecting Drive Initialization causes all
previous storage data on the drive to be
erased. Make sure all of your information is
backed up before initializing drives.
1 If you are not already in the FastStream GUI,
type the IP address of your appliance, as found
in Use the FastStream VT 5300 GUI on page
23, in a standard browser, click Enter Here and
type in your username and password.
2Select Initialize and Verify Drives
3 Click Next
4Select Initialize and Verify
5 All eligible drives are highlighted in green; the
system only initializes highlighted drives.
Ensure only the drives you are initializing are
selected. Click Commit
Note
Do not restart the FastStream or disconnect or
power cycle drives during Drive Initialization
and Verification or you must start the
verification process from the beginning.

Add drives to a RAID Group

If you have unallocated drives, you can increase
the number of drives used by an existing VTL by
adding an unallocated drive to the VTL’s RAID
Group. The increased capacity of the RAID
Group will be seen as an additional Virtual Tape
cartridge in the library. You may have to add
more than one drive.
1 Initialize and verify your new storage as
outlined in Initialize and verify drives above.
2 Click on the Manage button
3 Select the RAID Groups drop down arrow.
4 Click on Add Drives to a RAID Group
5 Click on Next
6 Select the RAID Group associated with the VTL
you wish to add the drives to from the drop
down menu.
7 Click on the drives you wish to add to the RAID
Group.
CAUTIONCAUTION
Adding drives to an existing RAID Group
may adversely impact performance. You
cannot reverse this operation unless you
delete the RAID Group.
8 When you have completed your changes, click
on Commit
9 In the warning box, verify that you want to add
the drives to the RAID Group by clicking on
Yes. Clicking on No ends the procedure without
making a change.
10 The Health and Status Monitor page appears.