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Appendix A Design RAID Groups
The ATTO FastStream provides instant hardware data protection and intelligence to existing storage independent
of the storage type.
CAUTION
CAUTION
RAID improves data accessibility and
reliability during normal operations,
however, you still need a good backup
strategy for long-term protection of your
data.
To set up RAID Groups refer to
into RAID Groups
on page 21.
The ATTO FastStream allows RAID functionality. In
general, the process begins with individual drives
called block devices.
JBOD: Just a Bunch of Disks
JBOD configuration allows many individual drives to
be available for normal storage operations with no
special data protection by combining several drives
into one large drive. A special case of a RAID Group,
multiple physical drives are assigned to a JBOD RAID
DVRAID: Digital Video RAID
Digital Video RAID provides parity redundancy for your
data. Optimized for performance for the high data
transfer rates required in digital video environments,
DVRAID is ATTO Technology proprietary technology
which supports the editing of uncompressed 10-bit
i
ATTO Technology Inc. FastStream SC Installation and Operation Manual
Configure Storage
Disk 1
Disk 2
Data 1
Data 5
Data 2
Data 6
Data 3
Data 7
Data 4
Data 8
Note
If a drive has corrupt or outdated configuration
data, that drive cannot be assigned to any
RAID Group. Ensure all drives are configured
properly. Refer to
page 15 or
Removing RAID configuration
data
on page 41.
A RAID Group is a virtual, independent single drive
whose data is written to physical drives according to a
RAID algorithm. The ATTO FastStream supports
JBOD, DVRAID, RAID Level 0, 1, 1+ 0, 4, 5 and 6.
RAID improves data accessibility and reliability during
normal operations, however, you still need a good
backup strategy for long-term protection of your data.
Group and their storage areas appear as a single
spanned area of storage.
The ATTO FastStream supports 1 to 32 drives per
JBOD-configured RAID Group.
Disk 3
Data 9
Data 10
Data 11
Data 12
High Definition (HD) video and multiple streams of
real-time, uncompressed Standard Definition (SD)
video.
You must use the Quick Digital Video setup wizard in
the ExpressNAV Storage Manager.
Ensure Drive Integrity
on
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