Ldev information table, Cache information – HP XP P9500 Storage User Manual
Page 149
Description
Item
The cache information area provides information on the P9500 cache
usage. The cache information area also indicates when prestaging
operations and cache residency operations are in progress.
Cache information
Use add data to and release data from Cache Residency cache.
Operations
Starts the requested operation(s) with or without prestaging.
Apply
Cancels the requested operation(s) and closes the dialog box.
Cancel
LDEV Information table
Items in the LDEV Information table are described in the following table.
Description
Item
Data location on the LDEV indicated by starting and ending addresses. A data
location n blue italics indicates a requested operation.
LBAs for open-systems LDEVs, CC
HH for mainframe LDEVs
Capacity of the data stored in Cache Residency cache: MB for open-systems
LDEVs, cylinders and tracks for mainframe LDEVs.
Capacity
A capacity in blue italics indicates a requested operation.
Cache Residency cache mode:
Mode
•
PRIO: Priority mode.
•
BIND: Bind mode.
•
-: A dash (-) indicates that the area is not allocated for Cache Residency cache.
A cache mode in blue italics indicates a requested operation.
Setting for the prestaging function:
Prestage
•
Blank: Indicates that the prestaging function is not set.
•
ON: The prestaging function is set.
A prestaging mode in blue italics indicates a requested operation.
Available number of cache extents in the specified LDEV (maximum: 4,096).
Available Cache Residency Area in
LDEV
Cache Information
Description
Item
If you are logged in to Remote Web Console as a storage administrator, this field
shows the total number of Cache Residency cache extents that can be set in the
selected CU group (maximum: 16,384).
Total Num. of Cache Residency
Areas
If you are logged in to Remote Web Console as a storage administrator, this field
shows the total capacity (in MB) of Cache Residency cache extents in the selected
CU group (maximum: 512 GB).
Total Cache Residency Cache Size
Unused Cache Residency cache area, calculated by subtracting the number of
installed Cache Residency cache extents in the CLPR from the maximum number
of Cache Residency cache extents (16,384).
Num. of Available Cache Residency
Areas
Number of Cache Residency cache extents that are used in the CLPR.
Num. of Used Cache Residency
Areas
Amount of Cache Residency cache available for use in the CLPR (pink area on
the pie chart).
Remaining Cache Residency Size
Capacity of Cache Residency cache used in the CLPR (the total of the blue and
yellow areas in the pie chart).
Used Cache Residency Size
Cache Residency Window
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