Disk Enclosures
cancel
Showing results for 
Search instead for 
Did you mean: 

HP Smart Array 6402 Cache config

SOLVED
Go to solution
TomasD
Occasional Contributor

HP Smart Array 6402 Cache config

Hi,
I've got HP Smart Array 6402 there's battery backed ram on it that I've recently upgraded from 128mb to 512mb, under the System Management Homepage, Home -> Storage ->Smart Array 6400 Controller in Slot 1, Accelerator section I've got following:
<...>
Total Memory: 576 MB
Read Cache: 50%
Write Cache: 50%
<...>
I was wondering if it's possible to change memory percentages for reading writing? This is file server and as I know the optimal configuration for file server is
80% read
20% write

Also is there any way of monitoring current write and read memory loads on the cache?

Thanks all for your help
4 REPLIES
Rob Leadbeater
Honored Contributor
Solution

Re: HP Smart Array 6402 Cache config

Hi,

You should be able to change the cache ratio from the ACU (Array Configuration Utility).

Cheers,

Rob
mits
Respected Contributor

Re: HP Smart Array 6402 Cache config

See section "Changing the controller cache ratio" of HP Array Configuration Utility
User Guide. See section "ReadCache, WriteCache" as well.

Syntax:
modify cr=#/#|?
where is a controller, and #/# is the cache ratio in the format read percentage/write
percentage.
Example command:
=> ctrl slot=3 modify cr=25/75
TomasD
Occasional Contributor

Re: HP Smart Array 6402 Cache config

Thanks to both of you, you've been a great help! I found it! (:
TomasD
Occasional Contributor

Re: HP Smart Array 6402 Cache config

works