ATTO Technology diamond array v 用户手册
68
Partitions
24 physical drives
An exam ple of RAID 0 configuration (QuickRAID0 4): 2 or m ore physical drives
into 1 or m ore Virtual Drives.
Virtual Drive 0 has been configured into tw o partitions: LUNs 1 and 2.
Each Virtual Drive 1, 2 and 3 is configured by default as one partition and
designated LUNs 3, 4, and 5
into 1 or m ore Virtual Drives.
Virtual Drive 0 has been configured into tw o partitions: LUNs 1 and 2.
Each Virtual Drive 1, 2 and 3 is configured by default as one partition and
designated LUNs 3, 4, and 5
RAID 0 subsystem exam ple:
4 Virtual Drives
VD1, L3
VD0
VD2, L4
VD3, L5
P1 L1
P2 L2
P0
P0
P0
may only be applied after Partition
configuration.
configuration.
2
Each RAID group is a Virtual Drive. The array
assigns an ID to each Virtual Drive. (refer to
assigns an ID to each Virtual Drive. (refer to
on page 57 about how to
create Virtual Drives). Type
VirtualDriveInfo
[active]
to determine the Virtual Drive ID and
LUNs of any Virtual Drives already set up on
your array.
your array.
3
Type
VirtualDriveInfo [planned] to determine
if any partitioning has been planned but not
completed. If a merge has been planned and
you want the merge, go to step 5.
completed. If a merge has been planned and
you want the merge, go to step 5.
4
You may create up to 16 partitions on any
single Virtual Drive, with no more than 127
partitions across the entire array. Type
single Virtual Drive, with no more than 127
partitions across the entire array. Type
PartitionSplit [Virtual Drive ID]
[Partition ID] [number of Partitions]
5
Type
PartitionCommit
to create the partitions.
The array completes the configuration and
reboots. The planned configuration you have
entered becomes persistent and active.
reboots. The planned configuration you have
entered becomes persistent and active.
6
The array completes the configuration and
reboots.
reboots.
To merge partitions
CAUTION
CAUTION
You may lose the ability to access data
when you merge partitions. Either back up
the data to another storage area or only
merge partitions which are data-free.
when you merge partitions. Either back up
the data to another storage area or only
merge partitions which are data-free.
1
Type
PartitionInfo [active]
to determine the
current partitions and their IDs.
2
Type
PartitionInfo [planned]
to determine if
partitioning had been planned but not
completed. If a merge has been planned and
you want that merge, go to step 4.
completed. If a merge has been planned and
you want that merge, go to step 4.
3
Type
PartitionMerge [Virtual Drive ID] [Partition
ID|all] [<Partition Number...>]
to create a
planned partition configuration.
4
Type
PartitionCommit
to merge the partitions
and make the planned partition configuration
the active configuration.
the active configuration.
5
The array completes the configuration and
reboots.
reboots.
Exhibit 5.8-1 An example of Virtual Drives set up in drive-based QuickRAID0 stripe groups.