ATTO Technology FastStream SC 5700 - Manual (Page 19)

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• If no unallocated drive is available, you must
replace the faulted drive and a rebuild begins. If
you are using a FastStream 5300, you must
initiate a system scan using the CLI command
BlockDevScan to discover the drive before the
rebuild can take place; all other appliances
automatically discover the additional drive.
• Hot Spares are not required, allowing the
maximum number of drives for data storage.
However, if you require maximum fault
tolerance, it is best practice to have a Hot Spare
available to supply the unallocated drive for
immediate use. Refer to
FastStream process:
adding or removing Hot Spares on page 34.
• Hot Spares are used first, regardless of the
Auto-Rebuild setting.
Fault Tolerance
Choose either Standard Fault Tolerance (no Hot
Spare drives) or Maximum Fault Tolerance (which
adds Hot Spares to the system). Refer to FastStream
process: adding or removing Hot Spares on page 34
for details.
Initialization
If you have not already initialized your drives as
outlined in
Ensure Drive Integrity on page 11, you
may choose to use the Advanced Initialization for
new drives to erase and verify drive media and correct
some soft drive errors. The RAID Group is unavailable
until the operation completes.
Choose
Express Initialization to perform a quick
background initialization if you have already
completed a full initialize and verify operation. The
RAID Group being initialized is available for use during
express initialization.
Selecting an application
After initializing drives or setting up new storage,
select an application from the
Initial Setup or
Manage page. The FastStream finds all available
drives and creates the appropriate setup using those
drives.
The most flexible choice is to use
Custom Setup, but
you must understand your needs and your system well
to use this option.
Refer to
Design RAID Groups on page xix of the
Appendix for more information about RAID.
Preliminary steps
1 If you are not already in the ExpressNAV
Storage Manager, type the IP address of your
appliance in a standard browser. On the splash
screen, click
Enter Here. In the box provided,
type in your user name and password, and click
OK.
2 If you have not used the Ensure Drive Integrity
on page 11 or created other RAID groups, the
Initial Setup Menu appears.
If you have initialized your storage or created
other RAID configurations,
a. From the selections at the left, select
Manage.
b. Click on the RAID Groups arrow.
c. Click on Create RAID Group.
d. Click on Next.
3 Select one of the following and continue using
the directions in each specific section:
• Quick Digital Video: provides parity RAID
protection (DVRAID) and optimized
performance for digital video (sequential
access) configurations.
Note
DVRAID is only available using the Quick
Digital Video setup wizard.
• General Digital Video: provides parity RAID
protection for digital applications for
configurations using three or more drives.
• Audio: Audio track streaming technology
provides parity RAID protection while managing
latency to allow high-speed availability to
support up to 192 tracks of 16-bit audio or 96
tracks of 24-bit audio in a single editing session.
You must have only 4, 6, 8 or 12 drives available
in the system.
• General IT: provides parity RAID protection
optimized for random access applications using
three or more drives.
• Database: provides parity RAID protection for
database applications (small transfer, random
access) for configurations using more than three
drives.