topic Re: XP Cache Partition #0 for CA? in Disk Enclosures

XP Cache Partition #0 for CA?

Kelly Flemings — Fri, 12 Sep 2008 23:15:50 GMT

Does any use an XP 10K, 12K, 20K or 24K with heavy CA traffic? Has anyone come across any documentation that suggests creating XP cache partition (CLPR) #0 with some memory but no RAID groups?

Re: XP Cache Partition #0 for CA?

IBaltay — Sat, 13 Sep 2008 03:33:55 GMT

Hi,
this doc could help you:
http://bizsupport.austin.hp.com/bc/docs/support/SupportManual/c01363304/c01363304.pdf

Re: XP Cache Partition #0 for CA?

Kelly Flemings — Tue, 16 Sep 2008 17:10:19 GMT

IBaltay,

The link that you supplied is unaccessible.
Can you please supply the title of the document that try to reference in the link.

Or just answer the question directly.

Re: XP Cache Partition #0 for CA?

IBaltay — Tue, 16 Sep 2008 17:31:09 GMT

maybe in here:
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01367865/c01367865.pdf

Re: XP Cache Partition #0 for CA?

IBaltay — Tue, 16 Sep 2008 17:38:28 GMT

Your question is related more to the CA cache partitioning, it is covered in the External storage document (to which the storage partitioning is mandatory.

in your case try to monitor the
a) CA xp chip port utilisation (if the bottleneck is here you could dedicate more ports to the CA)
b) SAN Switch ports utilization (if the bottleneck is here you can give more ports into the ISL trunk)

Re: XP Cache Partition #0 for CA?

Kelly Flemings — Tue, 16 Sep 2008 19:43:53 GMT

As I suspected, you've directed me to the standard XP Disk/Cache Partition user guide. This guide along with the External storage guide don't address my question about an empty (no RAID Groups) CLPR0 when used with CA/Sync.

Nor does this XP Disk/Cache Partition best practices white paper:

http://h71028.www7.hp.com/ERC/downloads/4AA0-6542ENW.pdf