Fujitsu DX8100 S2 Computer Drive User Manual


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Chapter 5 Volume Management
5.2 Functions in the Action Area for Volume
ETERNUS Web GUI User’s Guide
Copyright 2013 FUJITSU LIMITED P2X0-1090-10ENZ0
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Concatenation Order
Select the concatenation order of RAID groups from "Automatic" or "Manual". It is not necessary to
change the default setting (Automatic) for normal use.
- Automatic
Automatically specify the concatenation order of RAID groups.
If multiple WSVs are already registered, the next available RAID group that enables the
controlling CM allocation to be distributed evenly is selected as 1 for the concatenation order. If
multiple RAID groups satisfy this condition, the RAID group with the smallest RAID group
number is selected as 1 in the concatenation order. RAID groups are concatenated starting from
1 (first) in ascending order. The last RAID group is concatenated to the first RAID group.
Volumes that belong to a RAID group for which the concatenation order is 1 (first) are called
"representative volumes".
- Manual
Manually specify the concatenation order of the RAID group.
Encryption by CM
Select whether to encrypt (On) or not encrypt (Off) the new volumes. When the encryption mode is
disabled, "On" cannot be selected.
Select RAID Group Information
Disk Type
Specify the drive type.
The installed drive determine the selectable disk types that are displayed.
If there are no RAID groups in which volumes can be created, the field is blank.
- Online
- Nearline
- SSD
- SED
- Online/Nearline
- Blank
If the basic size of the RAID group is 2MB or more, the basic size is specified for Wide Stripe Size
even when "Small" is selected.
This function cannot be used to change the "Wide Stripe Size" setting after WSVs are created. To
change the "Wide Stripe Size" value, use the [RAID Migration] function. Refer to "5.2.7 Start
RAID Migration" (page 123) for details.
When specifying "SED" for "Disk Type", select "Off" for "Encryption by CM".