HP StorageWorks Command View SDM Installation and User Guide (T1086-96023, February 2005)

Command Line User Interface 173
Command Line User Interface
RAID 5 DP to RAID 5 DP
Relocations Spawned by
MakeSpace
OPAQUE The number of clusters that were relocated by the make
space policy from RAID 5 DP to RAID 5 DP storage.
Usage
The RAID 5 DP storage areas can become filled with holes
of empty space that need to be garbage collected to make
the space available as free space for write data posted
from the write cache. These relocations are used to do
garbage collection in the RAID 5 DP storage areas. This is
the method most highly preferred by the make space
policy for making free space.
RAID 5 DP to RAID 1+0
Relocations Spawned by
Optimize
OPAQUE The number of clusters that were relocated by the optimize
policy from RAID 5 DP to RAID 1+0 storage.
Usage
Optimize uses these relocations to move the write working
set into RAID 1+0 storage to optimize random write
performance.
RAID 5 DP to RAID 5 DP
Relocations Spawned by
Optimize
OPAQUE The number of clusters that were relocated by the optimize
policy from RAID 5 DP to RAID 5 DP storage.
Usage
The RAID 5 DP storage areas can become filled with holes
of empty space that need to be garbage collected to make
the space available as free space. These relocations are
used to do garbage collection in the RAID 5 DP storage
areas.
Table 12 Performance Metrics (Continued)
Metric Categories Description/Usage