Diamond Storage Array Installation, Operations, Maintenance Manual

54 Diamond Storage Array
7 Reboot the host computer.
8 If sled(s) or drive(s) are physically missing from
the array, the entire stripe group (LUN)
containing the drive(s) will be unavailable. To
determine which drives would be unavailable in
various configurations, see Exhibit 6.2-1 and
Exhibit 6.2-2.
To remove RAID Level 0 groups
1 Connect to the array via the RS-232 port or the
optional Ethernet management services card
(refer to
Accessing the Array on page 17). You
should now be in CLI.
1 Continue with the CLI or access the RAID page
of the ExpressNAV interface (refer to
ATTO
ExpressNAV: Browser-based Interface
on page 25).
2Type set QuickRAID0 0 to configure the array
in JBOD mode.
3 Continue with steps 4 through 7 of
To set up
RAID Level 0 groups
on page 53.
Exhibit 6.2-1 Sled-based QuickRAID0 stripe groups with LUN designations in a fully populated Array set up as
QuickRAID0 6 sled . If sled 6 were to be withdrawn from the array, LUN 3 (grayed boxes) would be unavailable.
Exhibit 6.2-2 Drive-based QuickRAID0 stripe groups with LUN designations in a fully populated Array set up as
QuickRAID0 6 Drive . If sled 6 were to be withdrawn from the array, LUNs 2 and 5 would be unavailable.
Physical Sled123456789101112
Physical Drive121212121212121212121212
JBOD1 111111111111111111111111
2 111111111111222222222222
3 111111112222222233333333
4 111111222222333333444444
6 11112222
3 3 3 3444455556666
12112233445566778899101011111212
LUNs: virtual drive numbers
Physical Sled123456 7 8 9 10 11 12
Physical Drive121212121212121212121212
JBOD 0 113214315416517618719820921102211231224
1 111111111111111111111111
2 121212121212121212121212
3 121212121313131323232323
4 131313131313242424242424
6 14141414
2 5 2 5 2 5 2 536363636
12 1 7 1 7 2 8 2 8 3 9 3 9 410410511511612612
LUNs: virtual drive numbers
QuickRAID0 parameter
QuickRAID0 parameters