Legacy HDS Forums

High cache write pending in USP

Discussion created by Legacy HDS Forums on Aug 23, 2009
Latest reply on Feb 18, 2010 by Legacy HDS Forums

Originally posted by: PP BIJU KRISHNAN

Hi Gurus,

We have a USP with high cache write pending at all times. I presume this is also causing the front end MP's to be overloaded as well.

We cannot turn off the cache on external LUNs since it may severly impact performance of these hosts.

So we are thinking of installing a CLPR license and divide the cache into 2 partitions

128 GB for internal RG's

128 GB for external RG's

Any opinion as to whether this is the right approach.