Dell PowerVault MD3260i - Manual (Page 358)

Parameter Description
Enclose the snapshot image name in double quotation
marks (" ") inside square brackets ([ ]).
Notes
The name of a snapshot image has two parts separated by a colon (:):
• The identifier of the snapshot group
• The identifier of the snapshot image
For example, if you want to start a rollback operation for snapshot image 12345 in a snapshot group that has the name
snapGroup1, you would use this command:
start snapImage ["snapGroup1:12345"] rollback;
To start a rollback operation for the most recent snapshot image in a snapshot group that has the name snapGroup1, you
would use this command:
start snapImage ["snapGroup1:newest"]rollback;
Start SSD Cache Performance Modeling
Description
This command starts performance modeling for the SSD cache. Performance modeling monitors and measures I/O
activity for a period of time and estimates performance for various SSD cache sizes. Performance is estimated using two
metrics: cache hit percentage and average response time. The performance modeling data is not available until you stop
the operation using the stop ssdCache performanceModeling command.
Syntax
start ssdCache [ssdCacheName] performanceModeling
Parameter
Parameter Description
ssdCache The alphanumeric identifier (including - and _) of the SSD
cache that you want to locate. 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.
Notes
Performance modeling ends and the performance modeling data is available when one of the following conditions
occurs:
• Run the stop ssdCache performanceModeling command.
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