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3 Apprentice
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318 Posts
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780
August 29th, 2016 06:00
list cache slot age
I am trying to get a time for cache slots age. The reason being is I want to get a feel for how persistant readahead for sequential reads are.
Is there a symmcli command to poll this information ?
Anonymous User
1 Rookie
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9 Posts
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August 30th, 2016 18:00
Hello there,
Try the following might not be 100% to what you are looking for (Solutions Enabler CLI command reference guide)
To display PREFETCH statistics about all back-end DA
directors in the specified Symmetrix array every 60
seconds 100 times, enter:
symstat -DA ALL -i 60 -c 100 -type prefetch -sid 8910
The following output is returned:
DIR Preftch Preftch Trk/sec
H:M:S Trk/sec Used Unused
A B C D
A Time of day.
B Number of prefetched tracks per second.
C Number of prefetched tracks used per second.
D Number of prefetched tracks superseded per second.