From: Martin Wilck <mwilck@suse.com>
To: dm-devel@redhat.com, Ankur Srivastava <asrivastava014@gmail.com>
Subject: Re: : Multipath Setup for NVMe over Fabric
Date: Thu, 13 Apr 2017 09:41:07 +0200 [thread overview]
Message-ID: <1492069267.4742.45.camel@suse.com> (raw)
In-Reply-To: <CAJvSebsHo-+kroUZj3_8D710uxZci9O3KPC1fb3CVp+xPrvUjw@mail.gmail.com>
On Wed, 2017-04-12 at 14:50 +0530, Ankur Srivastava wrote:
> Hi All,
>
> I am working on NVMe over fabric and want to experiment the
> Multipathing support for the same.
>
> Setup Info:
> RHEL 7.2 with Kernel 4.9.3
>
>
> [root@localhost ~]# nvme list
> Node SN Model
> Namespace Usage Format
> FW Rev
> ---------------- -------------------- -----------------------------
> ----------- --------- -------------------------- ---------------- -
> -------
> /dev/nvme0n1 30501b622ed15184 Linux
> 10 268.44 GB / 268.44 GB 512 B + 0 B 4.9.3
> /dev/nvme1n1 ef730272d9be107c Linux
> 10 268.44 GB / 268.44 GB 512 B + 0 B
> 4.9.3
>
>
> [root@localhost ~]# ps ax | grep multipath
> 1272 ? SLl 0:00 /sbin/multipathd
>
>
> I have connected my Initiator to both the ports of Ethernet
> Adapter(Target) to get 2 IO Paths, from the above data "/dev/nvme0n1"
> is path 1 and "/dev/nvme1n1" is path 2 for the same namespace.
>
> Note: I am using Null Block device on the Target Side.
>
> But still the multipath is showing an error ie no path to Host for
> All the NVMe Drives mapped on the Initiator. Does multipathd supports
> NVMe over Fabric ??
> Or what I am missing from configuration side ??
I don't have any practical experience with NVMeoF, but you certainly
need a recent upstream multipath-tools version to make it work.
Regards
Martin
--
Dr. Martin Wilck <mwilck@suse.com>, Tel. +49 (0)911 74053 2107
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
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prev parent reply other threads:[~2017-04-13 7:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-12 9:20 : Multipath Setup for NVMe over Fabric Ankur Srivastava
2017-04-13 7:41 ` Martin Wilck [this message]
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