PAM II cache

[plrsuresh]

HI,

How do i find, which physical devices are consuming the PAM cache on the storage devices ?

Even after i use PAM still im facing read latency issue.

Thanks

CP

[radek_kubka]

Hi CP and welcome to the Communities!

PAM II (a.k.a. Flash Cache) will be beneficial for only certain types of workloads, namely when your hosts frequently read the same data again & again. If your read pattern is different, then PAM II will not help. Also be sure to 'warm up' the cache (fill with data) before doing any testing.

Here is a bunch of documents explaining all this in much greater detail:

http://www.netapp.com/us/library/white-papers/wp-7107.html

http://media.netapp.com/documents/tr-3832.pdf

http://media.netapp.com/documents/wp-7082.pdf

Regards,

Radek