Chapter 3 Volume Management
3.5 Expand Volume
Requirements to obtain free space from RAID groups
•
The "Status" is not "
•
The RAID group must satisfy the following requirements:
-
The RAID group must contain Standard type volumes, WSVs, SDVs, or SDPVs
If this is not the case, the RAID group must not contain any volumes
-
The RAID group must not belong to a TPP
-
The RAID group must not belong to an FTRP
-
The RAID group must not be registered as an REC Disk Buffer
-
The RAID group must not be registered as an EXCP
•
The number of volumes registered in the target RAID group is 127 or less
•
The free space for the RAID group is 1GB or larger
•
The RAID group must not be blocked
•
LDE is not being performed in the target RAID group
•
The drive type for configuring the RAID group where the concatenation source volume belongs and the
drive type for configuring the concatenation destination RAID group must be the following combination of
drive types
Concatenation
source drive
type
OK: Concatenation is available, Not recommended: Concatenation is available, but not a recommended configuration,
NG: Concatenation is not available
*1:
In the controller firmware versions V10L31 and earlier, "SED" indicates "Online SED".
Broken"
Online
OK
Not
Online
recommended
OK
Not
Nearline
recommended
SSD
NG
NG
Online
NG
NG
SED (*1)
Nearline
NG
NG
SED
SSD SED
NG
NG
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ETERNUS Web GUI User's Guide (Settings)
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Concatenation destination drive type
Nearline
SSD
Online SED
NG
NG
NG
NG
OK
NG
NG
OK
NG
Not
recommended
NG
NG
SSD
Nearline SED
SED
NG
NG
NG
NG
NG
NG
Not
NG
recommended
OK
NG
NG
OK
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