Raid Level 10 - ATTO Technology Diamond Storage Array S-Class Installation And Operating Manual

The Diamond Storage Array can be set up into RAID Level 10 (striped and mirrored) groups to provide
greater reliability by simultaneously writing data to two sleds. Each sled partnered through
QuickRAID10, a CLI command, has the same data as its partner.
CAUTION CAUTION
Selecting RAID configuration causes all
previous drive data on the Diamond
Storage Array to be erased. Make sure all
information is backed up before
configuring RAID groups.
The configuration of RAID Level 10 stripes
information across several mirrored drives,
performing the same operations on two partnered
sleds at the same time thus providing an automatic
backup of data. The
QuickRAID10
creates six mirrored groups, then stripes them into
groups of one, two or three RAID 10 groups (see
Exhibit 6.5-2).
To set up RAID Level 10 groups
1 Connect to Diamond Storage Array services via
the RS-232 port or the optional Ethernet
management services card (refer to
the Array
on page 17). You should now be in
CLI.
2 Continue with the CLI or access the RAID page
of the ExpressNAV interface (refer to
ExpressNAV: Browser-based Interface
An example of RAID 10 (QuickRAID10 2) in a fully populated Diamond Storage
Array: 6 sleds, each partnered with another sled, with each partner a mirror image
of the other, configured into two stripe groups
2 virtual devices
63
ATTO Technology Inc. Diamond Storage Array Installation and Operation Manual

6.5 RAID Level 10

3
4
command first
5
6
7
8
To remove RAID groups
Accessing
1
ATTO
on page 25).
Note
Because the ExpressNAV pages take you
through this process easily, the following
instructions are based on the CLI commands.
Use these instructions as a guide in
ExpressNAV.
Decide how many RAID10 groups you want (0,
1, 2 or 3).
Type set QuickRAID10 [0 |1 | 2| 3].
Note
0 will return the array to JBOD.
The array will update NVRAM. The Ready*
displays.
Type SaveConfiguration.
Type FirmwareRestart to reboot the array.
Reboot the host computer.
Connect to Diamond Storage Array services via
the RS-232 port or the optional Ethernet
management services card (refer to
the Array on page 17). You should now be in
CLI.
2 spanned drives per sled
each sled a mirror image of its
partner
Accessing