Fujitsu ETERNUS DX60 S3 User Manual page 543

Chapter 5 RAID Group Management
5.5 Expand RAID Group
Drive selection requirements for changing the RAID level
The following conditions are also required when changing the RAID level.
• When the RAID level before and after LDE is not changed:
The drives that are used in the RAID group before LDE was performed cannot be deleted.
• When the RAID level is changed after LDE:
- The number of RAID group data drives (*1) after LDE cannot be less than the number before LDE.
RAID1+0
RAID5
RAID6
RAID1
RAID0
*1: "Number of data drives" indicates the number of logical drives in RAID groups that contain user data. This
number is different for each RAID level.
*2: D: Data drives, M: Mirror drives, P: Parity drives
- Drives that are not used after changing the RAID level can be deleted from the RAID group. However,
not all of the drives can be deleted from a RAID group.
For details on the parameters for this function, refer to
For the factory default settings for this function, refer to
The procedure to expand RAID group capacity is as follows:
Procedure
1
Select the RAID group that is to be expanded and click [Expand] in [Action].
2
Select the RAID level after expansion.
The main setting items are as follows.
●
Manual Setting
• RAID Level after expand
RAID level Drive configuration (*2)
nD+nM
nD+1P
nD+2P
1D+1M
nD
ETERNUS Web GUI User's Guide (Settings)
Copyright 2015 FUJITSU LIMITED
Number of data drives
n
n
n
1
n
"A.5.4 Expand RAID Group" (page
"Appendix B Expand RAID Group" (page
543
915).
1005).
P2X0-1270-13ENZ0