Dell PowerVault, Manual

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Show SSD Cache Statistics
Description
This command displays data about the SSD cache usage.
Syntax
show ssdCache [ ssdCacheName ] ssdCacheStatistics [RAID controller module=[(0|1|
both)] file=" filename "]
Parameters
Parameter Description
ssdCache
The alphanumeric identifier (including - and _) of
the SSD cache for which you want to get
information. Enclose the identifier in square
brackets ([ ]). If the SSD cache name contains
special characters or consists only of numbers, you
also must enclose the identifier in double
quotation marks (" ") inside square brackets.
RAID controller module
Each RAID controller module stores SSD cache
metadata for the virtual disks that it owns.
Therefore, the SSD cache statistics are maintained
and displayed per RAID controller module. Valid
RAID controller module identifiers are
0
,
1
, or both,
where
0
is the RAID controller module in slot 0,
1
is the RAID controller module in slot 1, and both is
both RAID controller modules. Enclose the RAID
controller module identifier in square brackets ([ ]).
If you do not specify a RAID controller module, the
default value is
both
.
file
The file path and the file name to which you want
to save the SSD cache statistics. Additional
statistics are available when you save the statistics
to a file.
Enclose the file name in double quotation marks ("
"). For example: file="C:\Program Files\CLI\logs
\statistics.csv".
Notes
The following statistics are displayed on the screen:
Reads Total number of host reads of SSD cache-enabled virtual disks.
Compare the
Reads relative to Writes . The Reads need to be greater than the
Writes for effective SSD cache operation. The greater the ratio of Reads to Writes
the better the operation of the cache.
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