ATTO Technology V-Class Manuale Utente
59
ATTO Technology Inc. Diamond Storage Array Installation and Operation Manual
Configuring a partially-populated array
The simplest way to attain RAID Level 5 in a
partially-populated array (an array with three or
more sleds but less than 12 sleds) is to create one
RAID Level 5 group, with or without hot spare
The simplest way to attain RAID Level 5 in a
partially-populated array (an array with three or
more sleds but less than 12 sleds) is to create one
RAID Level 5 group, with or without hot spare
sleds, encompassing all the available sleds by
using the CLI command
using the CLI command
QuickRAID5 ALL
.
To set up a partially populated arrays, you must
have at least three sleds filling contiguous slots as
shown in Exhibit 1.28-4, beginning with the slot
closest to the management card.
have at least three sleds filling contiguous slots as
shown in Exhibit 1.28-4, beginning with the slot
closest to the management card.
Exhibit 1.28-4Examples of RAID Level 5 configurations in partially-populated array with at least six sleds. Hot Spare
sleds are in the highest slot numbers.
sleds are in the highest slot numbers.
To set up RAID Level 5 groups
1
Connect to Diamond Storage Array services via
the RS-232 port or the optional Ethernet
management services card (refer to
the RS-232 port or the optional Ethernet
management services card (refer to
Accessing
the Array
on page 17). You should now be in the
CLI.
2
Continue with the CLI or access the RAID page
of the ExpressNAV interface (refer to
of the ExpressNAV interface (refer to
ATTO
ExpressNAV: Browser-based Interface
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.
through this process easily, the following
instructions are based on the CLI commands.
Use these instructions as a guide in
ExpressNAV.
3
Decide the RAID Level 5 configuration you
want based on the number of sleds you are
using and Exhibit 1.28-4 above.
want based on the number of sleds you are
using and Exhibit 1.28-4 above.
4
Type set QuickRAID5 [2 | 3 | 4 | ALL]
5
Type SaveConfiguration Restart to save the
RAID Level 5 configuration.
RAID Level 5 configuration.
6
A Ready prompt displays. You must zero all
drives and parity to make all RAID Level 5
drives coherent. Type RAID5ClearData all
drives and parity to make all RAID Level 5
drives coherent. Type RAID5ClearData all
CAUTION
CAUTION
This is a destructive operation: all
information stored on these drives is lost.
information stored on these drives is lost.
CAUTION
CAUTION
DO NOT interrupt power until the
RAID5ClearData operation has completed
(three to six hours).
RAID5ClearData operation has completed
(three to six hours).
7
Information displays on the screen while the
array updates NVRAM ending with a Ready*.
array updates NVRAM ending with a Ready*.
8
Type SaveConfiguration.
9
Type FirmwareRestart to reboot the array.
10 Reboot the host computer connected via Fibre
Channel or SCSI to the array.
Sled
1
2
3
4
5
6
7
8
9
10
11
12
QuickRAID5 4
3 contiguous sleds in slots 1-3 and
slots 4-6 with no Hot Spare sled
slots 4-6 with no Hot Spare sled
LUN1
LUN 2
QuickRAID5 3
4 contiguous sleds in slots 1-4 and
slots 5-8 with no Hot Spare sled
slots 5-8 with no Hot Spare sled
LUN 1
LUN 2
QuickRAID5 2
6 contiguous sleds in slots 1-6 with
no Hot Spare sled
no Hot Spare sled
LUN 1
QuickRAID5 2 1
5 contiguous sleds in slots 1-5 with
up to 2 Hot Spare sleds
up to 2 Hot Spare sleds
LUN 1
Hot
Spare
QuickRAID5 ALL
3-12 contiguous sleds with no Hot
Spare sleds
Spare sleds
LUN 1
QuickRAID5 ALL 1
3-11 contiguous sleds with 1 Hot
Spare sled
Spare sled
LUN 1
Hot
Spare