topic Re: Linux DM multipath with active / pasive array in HPE EVA Storage

Linux DM multipath with active / pasive array

RogerVI — Thu, 05 Aug 2010 04:32:45 GMT

Hi,
I have a storage EVA 5000 HSV 110 VCS 3.110
(active / pasive)
I want to connect to a server that is running REL 5.5 with redundant paths. Therefore, I want to run the Device Mapper Multipath.
The question is:
The active / pasive disk array is supported with the Linux Device Mapper Multipath ?
Thanks in advance

Re: Linux DM multipath with active / pasive array

Uwe Zessin — Thu, 05 Aug 2010 06:54:50 GMT

From what I have seen in the past, HP does not support access via DM to an active/passive array.

Many years ago I've seen descriptions for the even-older HSG array which is active/passive, too. But it was not on a HP website and I don't recall any more details, sorry.

Re: Linux DM multipath with active / pasive array

Jan Soska — Fri, 06 Aug 2010 07:43:24 GMT

Hello,
I heard there is a active/active firmware for EVA5000? But not sure... will this help you if exists?

Jan

Re: Linux DM multipath with active / pasive array

Uwe Zessin — Fri, 06 Aug 2010 07:48:22 GMT

What you heard is correct ;-)

VCS V4.x is active/active firmware, but be careful!

All multipath solutions based on Secure Path (spmgr) and the Windows "basic MPIO" must be replaced by a solution that understands active/active.

Old Secure Path will no longer recognize the EVA-5000 (and the -3000, too), because it changes the SCSI inquiry strings from HSV100/HSV110 to HSV101/HSV111.

Re: Linux DM multipath with active / pasive array

RogerVI — Tue, 30 Nov 2010 23:00:36 GMT

Thanks