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Appendix A Screen Details
> A.17 Balance Thin Provisioning Volume
ETERNUS DX400/DX8000 series ETERNUSmgr User Guide Settings/Maintenance
740
Copyright 2010 FUJITSU LIMITED
P2X0-0760-02ENZ0
• Capacity (MB)
The logical capacity of the TPV is displayed in MB.
• TPP No.
The Pool number of the TPP to which the TPV belongs is displayed in 2-digit hexadecimal.
• TPP Name
The Pool name of the TPP to which the TPV belongs is displayed within 16 characters.
If a Thin Provisioning Pool name is not specified, the field is blank.
• Resource Domain No.
The Resource Domain number (0x00 – 0x07) to which the TPV belongs is displayed.
When the relevant TPV is a Shared Resource, [-] (hyphen) is displayed.
• Resource Domain Name
The Resource Domain name to which the TPV belongs is displayed within 16 characters.
If a Resource Domain name is not specified, the field is blank.
For a Shared Resource TPV, [Share] is displayed.
■ Supplementary information (Balance Level)
There are three Balance Levels; "High", "Middle", and "Low". "High" indicates that the physical
capacity of TPV is allocated equally in the RAID Groups registered in the TPP. "Low" indicates
that the physical capacity is allocated unequally to a specific RAID Group in the TPP.
● Criteria for Balance Level
Divide the physical allocating capacity of the TPV by the number of RAID Groups registered
in the TPP where the relevant TPV belongs, and obtain the average value of the physical
allocating capacity per RAID Group. The Balance Level is obtained from the ratio of the
calculated average value of the physical allocating capacity per RAID Group and the physical
allocating capacity that is actually allocated for each RAID Group.
- High
The actual physical allocating capacities for all the RAID Groups are within the range of 95
– 105 (%) of the average value
- Middle
The actual physical allocating capacities for all the RAID Groups are within the range of 50
– 95 (%) or 105 – 150 (%) of the average value
- Low
Other than the above range
If the Balance Level differs according the RAID Group, the lowest level (Low > Middle > High)
is selected as the Balance Level of the relevant TPV.
Note that when the physical allocating capacity is less than the specific value, "High" is
selected without any conditions.
When Resource Domains are not registered in the ETERNUS DX400/
DX8000 series, or when logged on using a Resource Domain
Administrator account, the [Resource Domain No.] and the [Resource
Domain Name] are not displayed.