MIDRANGE dot COM Mailing List Archive



Home » MIDRANGE-L » July 2014

RE: Attaching Hitachi HUS VM to IBM i LPARs



fixed

Thanks Sue, I've perused those redbooks before, but I guess now it is sounding much more likely that we will switch to VIOS for this upcoming box so a more thorough read is in order. I think I made the assumption that since VIOS with internal disk (ugh!) only being able to support mirroring, that also applied to non-NPIV too, completely unencumbered by facts.

Dana

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Sue Baker
Sent: Friday, July 18, 2014 11:09 AM
To: midrange-l@xxxxxxxxxxxx
Subject: Re: Attaching Hitachi HUS VM to IBM i LPARs

=?UTF-8?Q?Roberto_Jos=C3=A9_Etcheverry_Romero?=
<yggdrasil.raiker@xxxxxxxxx> wrote on Wed, 16 Jul 2014 17:14:38
GMT:

No, you do it this way:

Hitachi LUNS = 0 1 2 3 4

Dual VIOS redundantly connected to HITACHI sees LUNS 0 1 2 3 4
(important that the hdisks be configured as the manual says for Dual
Vios, otherwise failover and load balancing fail due to LUN lock).

Dual VIOS present the same disks to each partition via vSCSI adapters.

IBM i sees both adapters and sees the 2 paths to each disk.

That's how i have it set up on a client, and that was how i read the
manual, but let's wait for Sue or the Dr to be sure.
Also, i'm not sure why they say IBM i 7.1, last i read it was IBM i
6.1.1 or later.


Yes, this is the way it is done. Each VIOS server sees the same set of LUNs using reserve_policy=no_reserve so neither places a lock on the LUN.

Why Hitachi is saying 7.1 as the earliest release they support, I haven't any ideas except perhaps it was simply the level they chose to test with.

--
Sue
IBM Americas Advanced Technical Sales Support (ATS) Power Systems Rochester, MN
--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/midrange-l.



Attention: This electronic document and associated attachments (if any) may contain confidential information of the sender (SHAZAM Network) and is intended solely for use by the addressee(s). Review by unintended individuals is prohibited. If you are not the intended recipient: (i) do not read, transmit, copy, disclose, store, or utilize this communication in any manner; (ii) please reply to the sender immediately, state that you received it in error and permanently delete this message and any attachment(s) from your computer and destroy the material in its entirety if in hard copy format. If you are the intended recipient, please use discretion in any email reply to ensure that you do not send confidential information as we cannot secure it through this medium. By responding to us through internet e-mail, you agree to hold SHAZAM, Inc. and all affiliated companies harmless for any unintentional dissemination of information contained in your message. Thank you. (2)





Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2014 by MIDRANGE dot COM and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available here. If you have questions about this, please contact