redhat-list Digest, Vol 77, Issue 18
Hi,
To answer you question on why to use IBM RDAC, There is no need for dm-multipath at all. Easy enough to re-install later.
Regards,
Amitesh Sahay
Technical Support Assciate (MphasiS an HP company)
-----Original Message-----
From: redhat-list-request <redhat-list-request@redhat.com>
To: redhat-list <redhat-list@redhat.com>
Sent: Tue, Jul 20, 2010 9:31 pm
Subject: redhat-list Digest, Vol 77, Issue 18
Send redhat-list mailing list submissions to
redhat-list@redhat.com
To subscribe or unsubscribe via the World Wide Web, visit
https://www.redhat.com/mailman/listinfo/redhat-list
or, via email, send a message with subject or body 'help' to
redhat-list-request@redhat.com
You can reach the person managing the list at
redhat-list-owner@redhat.com
When replying, please edit your Subject line so it is more specific
than "Re: Contents of redhat-list digest..."
Today's Topics:
1. IBM DS4700 and RDAC (Wahyu Darmawan)
2. RE: IBM DS4700 and RDAC (Wahyu Darmawan)
3. Re: IBM DS4700 and RDAC (Marti, Robert)
4. Re: IBM DS4700 and RDAC (Georgios Magklaras)
----------------------------------------------------------------------
Message: 1
Date: Tue, 20 Jul 2010 10:06:22 +0700
From: Wahyu Darmawan <Wahyu.Darmawan@ag-it.com>
To: General Red Hat Linux discussion list <redhat-list@redhat.com>
Subject: IBM DS4700 and RDAC
Message-ID:
<0FE1B519D219B64A87E99E362023854505171CDB6F@svr-e2k7.ag-it.com>
Content-Type: text/plain; charset="us-ascii"
Hi all,
I have problem with my servers. I use two of HP Blade Servers and RHEL 4.6
installed on them, and have IBM DS4700 connected to them.
In those servers are running RHCS (Red Hat Cluster Suite) with GFS for handling
Oracle Database.
Yesterday, I had missing one partition from the storage, suddenly. I called IBM
and they suggested to use RDAC.
The question is, Why should use IBM RDAC for multipath in my RHEL 4, and why HP
Blade + HP EVA Storage don't use any addition plugins software to keep server +
storage connection?
I will appreciate For some reasons by all of you.
Thank you.
Regards,
Wahyu
------------------------------
Message: 2
Date: Tue, 20 Jul 2010 16:07:05 +0700
From: Wahyu Darmawan <Wahyu.Darmawan@ag-it.com>
To: General Red Hat Linux discussion list <redhat-list@redhat.com>
Subject: RE: IBM DS4700 and RDAC
Message-ID:
<0FE1B519D219B64A87E99E362023854505171CDD6D@svr-e2k7.ag-it.com>
Content-Type: text/plain; charset="us-ascii"
Hi all,
Any update?
Thank you.
-----Original Message-----
From: redhat-list-bounces@redhat.com [mailto:redhat-list-bounces@redhat.com] On
Behalf Of Wahyu Darmawan
Sent: Tuesday, July 20, 2010 10:06 AM
To: General Red Hat Linux discussion list
Subject: IBM DS4700 and RDAC
Hi all,
I have problem with my servers. I use two of HP Blade Servers and RHEL 4.6
installed on them, and have IBM DS4700 connected to them.
In those servers are running RHCS (Red Hat Cluster Suite) with GFS for handling
Oracle Database.
Yesterday, I had missing one partition from the storage, suddenly. I called IBM
and they suggested to use RDAC.
The question is, Why should use IBM RDAC for multipath in my RHEL 4, and why HP
Blade + HP EVA Storage don't use any addition plugins software to keep server +
storage connection?
I will appreciate For some reasons by all of you.
Thank you.
Regards,
Wahyu
--
redhat-list mailing list
unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
https://www.redhat.com/mailman/listinfo/redhat-list
------------------------------
Message: 3
Date: Tue, 20 Jul 2010 06:09:19 -0500
From: "Marti, Robert" <RJM002@shsu.edu>
To: General Red Hat Linux discussion list <redhat-list@redhat.com>
Subject: Re: IBM DS4700 and RDAC
Message-ID: <FA1A205F-342F-4F94-960A-60EDEE82FDBB@shsu.edu>
Content-Type: text/plain; charset="us-ascii"
I would bet that it's simply the support guys are trained on RDAC and
not trained on multipath.
Sent from my iPhone
On Jul 19, 2010, at 23:33, "Wahyu Darmawan" <Wahyu.Darmawan@ag-it.com>
wrote:
> Hi all,
>
> I have problem with my servers. I use two of HP Blade Servers and
> RHEL 4.6 installed on them, and have IBM DS4700 connected to them.
> In those servers are running RHCS (Red Hat Cluster Suite) with GFS
> for handling Oracle Database.
> Yesterday, I had missing one partition from the storage, suddenly. I
> called IBM and they suggested to use RDAC.
> The question is, Why should use IBM RDAC for multipath in my RHEL 4,
> and why HP Blade + HP EVA Storage don't use any addition plugins
> software to keep server + storage connection?
> I will appreciate For some reasons by all of you.
> Thank you.
>
>
> Regards,
> Wahyu
>
> --
> redhat-list mailing list
> unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
> https://www.redhat.com/mailman/listinfo/redhat-list
------------------------------
Message: 4
Date: Tue, 20 Jul 2010 13:17:14 +0200
From: Georgios Magklaras <georgios@biotek.uio.no>
To: General Red Hat Linux discussion list <redhat-list@redhat.com>
Subject: Re: IBM DS4700 and RDAC
Message-ID: <4C4585BA.6030402@biotek.uio.no>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 07/20/2010 05:06 AM, Wahyu Darmawan wrote:
> Hi all,
>
> I have problem with my servers. I use two of HP Blade Servers and RHEL 4.6
installed on them, and have IBM DS4700 connected to them.
> In those servers are running RHCS (Red Hat Cluster Suite) with GFS for
handling Oracle Database.
> Yesterday, I had missing one partition from the storage, suddenly. I called
IBM and they suggested to use RDAC.
> The question is, Why should use IBM RDAC for multipath in my RHEL 4, and why
HP Blade + HP EVA Storage don't use any addition plugins software to keep server
+ storage connection?
> I will appreciate For some reasons by all of you.
> Thank you.
>
>
> Regards,
> Wahyu
>
>
This is a classic. RDAC is the standard supported way to perform
multi-path software config for IBM DS devices. In addition, it provides
some troubleshooting features that are not included in other software
suites (such as the HP tools). So, what they will do is to look at the
'SMdevices' command and verify the status of the RDAC software that
talks to your DS4700 unit. The HP Blade + EVA is concerned with lights
out and HP specific things.
When I had to deal with a similar case, IBM insisted that it is part of
the support deal to install this software. It is not really a big thing
to install it. If they won't help you with installation give us a shout.
--
Best regards,
--
George Magklaras BSc (Hons) MPhil RHCE
IT Systems Manager/Senior Systems Engineer
The Biotechnology Center of Oslo
University of Oslo
http://www.biotek.uio.no
http://www.no.embnet.org
http://folk.uio.no/georgios
------------------------------
__
redhat-list mailing list
Unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
https://www.redhat.com/mailman/listinfo/redhat-list
End of redhat-list Digest, Vol 77, Issue 18
*******************************************
--
redhat-list mailing list
unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
https://www.redhat.com/mailman/listinfo/redhat-list
|
