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Chapter 5 Configuration Menu
> 5.3 Thin Provisioning Management
ETERNUS DX400/DX8000 series ETERNUSmgr User Guide Settings/Maintenance
253
Copyright 2010 FUJITSU LIMITED
P2X0-0760-02ENZ0
When registering multiple RAID Groups in the Thin Provisioning Pool, repeat Step 4 and
Step 5 as required.
After registering RAID Groups to the Thin Provisioning Pool completes, move on to Step 6.
Restrictions for disk layout varies depending on the RAID level of the RAID Groups
registered in the Thin Provisioning Pool. Confirm the following restrictions to select disk
drives.
● Restrictions for Disk Layout
RAID level Restrictions for disk layout
RAID0 No restrictions
RAID1+0 Mirroring should NOT be by disk drives in the same
FC-Loop
RAID5(3+1), RAID5(7+1)
(for ETERNUS DX410/DX440 or
ETERNUS DX8100)
No restrictions
RAID5(3+1)
(for ETERNUS DX8400/DX8700)
• Member Disks should NOT be in the same FC-
Loop
• RAID Group should be configured in the pair BRT
RAID5(7+1)
(for ETERNUS DX8400/DX8700)
Member Disks should NOT be in the same FC-Loop
RAID6(6+2)
(for ETERNUS DX410/DX440 or
ETERNUS DX8100)
No restrictions
RAID6(6+2)
(for ETERNUS DX8400/DX8700)
3 or more Member Disks should NOT be in the same
FC-Loop
• Select disk drives with the same capacity. If disk drives of different
capacities exist in a RAID Group, the smallest becomes the
standard, and all other disks are regarded as the same capacity
as the smallest disk drive. In this case, the remaining disk space
will NOT be used.
• When clicking the [Set] button in the following conditions, an error
screen appears.
- When entering characters other than ASCII code (0x20 –
0x7E) as RAID Group Name.
- When entering the existing RAID Group name.
- When the number of selected disk drives and the [Number of
configuration disks] in the RAID Group settings do not match.
- When the FC-Loop where the selected disk belongs does not
meet conditions for each RAID level.
For the disk layout restrictions for each RAID level, refer to
"Restrictions for Disk Layout" (page 253)
.