topic Re: EVA4400 Continuous Access overheat in Disk Enclosures

EVA4400 Continuous Access overheat

wai perng — Thu, 03 Sep 2009 08:41:33 GMT

Hi!
Anyone has the exact figure/ percentage of the CA overheat?

I notice I have 'lost' 200Gb (out of my total 8 * 146Gb FC disk) just to create a DR Group. Is this normal?

I tried to look for Whitepaper & Best practices but find none.

Thanks!

Re: EVA4400 Continuous Access overheat

Víctor Cespón — Thu, 03 Sep 2009 09:23:16 GMT

You mean overhead, I guess...

The answer is in

HP StorageWorks Enterprise Virtual Array compatibility reference

http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c01836889/c01836889.pdf

Page 29

By default, with recent firmware versions, the EVA reserves 100 GB in RAID 1 (hence 200 GB in raw space) for the default DR group log file size.

You can change this value, with a minimum of 5 GB.

Re: EVA4400 Continuous Access overheat

wai perng — Thu, 03 Sep 2009 23:25:34 GMT

Hi!

Thanks for the infor.

Is EVA uses this 100Gb for the 'write history log'? Where can I change the default allocated size?

Re: EVA4400 Continuous Access overheat

Bert Zefat — Fri, 04 Sep 2009 05:07:33 GMT

Wai,

You can assign the log disk size when you setup the DR group. Afterwards you can change it at the source side of your DR groep (second Tab, Logging).

Re: EVA4400 Continuous Access overheat

Dileep.. — Sun, 06 Sep 2009 01:35:17 GMT

we can change the size of the log disk. To change the log disk location we need to delete and recreate the DR groups.