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From: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
To: Chuck Lever <chuck.lever-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: "Atchley, Scott" <atchleyes-1Heg1YXhbW8@public.gmane.org>,
	"lsf-pc-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org"
	<lsf-pc-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
	Linux NFS Mailing List
	<linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Linux RDMA Mailing List
	<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	linux-fsdevel
	<linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [LSF/MM TOPIC] Remote access to pmem on storage targets
Date: Tue, 26 Jan 2016 09:00:21 -0800	[thread overview]
Message-ID: <20160126170021.GA21672@infradead.org> (raw)
In-Reply-To: <D0C5C0B9-A1A2-4428-B3CA-7BBCC5BEF10D-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>

On Tue, Jan 26, 2016 at 10:29:35AM -0500, Chuck Lever wrote:
> As I understand it, NVMf devices look like local devices.
> NVMf devices need globally unique naming to enable safe use
> with pNFS and other remote storage access protocols.

NVMe provides global uniqueue identifiers similar to SCSI, and in fact
there is even a standardised mapping to SCSI.  The current SCSI layout
draft will work fine with both multi ported PCIe NVMe devices as well
as future fabrics devices.
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WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: Chuck Lever <chuck.lever@oracle.com>
Cc: "Atchley, Scott" <atchleyes@ornl.gov>,
	"lsf-pc@lists.linux-foundation.org"
	<lsf-pc@lists.linux-foundation.org>,
	Linux NFS Mailing List <linux-nfs@vger.kernel.org>,
	Linux RDMA Mailing List <linux-rdma@vger.kernel.org>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: [LSF/MM TOPIC] Remote access to pmem on storage targets
Date: Tue, 26 Jan 2016 09:00:21 -0800	[thread overview]
Message-ID: <20160126170021.GA21672@infradead.org> (raw)
In-Reply-To: <D0C5C0B9-A1A2-4428-B3CA-7BBCC5BEF10D@oracle.com>

On Tue, Jan 26, 2016 at 10:29:35AM -0500, Chuck Lever wrote:
> As I understand it, NVMf devices look like local devices.
> NVMf devices need globally unique naming to enable safe use
> with pNFS and other remote storage access protocols.

NVMe provides global uniqueue identifiers similar to SCSI, and in fact
there is even a standardised mapping to SCSI.  The current SCSI layout
draft will work fine with both multi ported PCIe NVMe devices as well
as future fabrics devices.

  parent reply	other threads:[~2016-01-26 17:00 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-25 21:19 [LSF/MM TOPIC] Remote access to pmem on storage targets Chuck Lever
2016-01-25 21:19 ` Chuck Lever
     [not found] ` <06414D5A-0632-4C74-B76C-038093E8AED3-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-01-26  8:25   ` [Lsf-pc] " Jan Kara
2016-01-26  8:25     ` Jan Kara
2016-01-26 15:58     ` Chuck Lever
2016-01-27  0:04       ` Dave Chinner
2016-01-27 15:55         ` Chuck Lever
2016-01-27 15:55           ` Chuck Lever
2016-01-28 21:10           ` Dave Chinner
     [not found]       ` <F0E2108B-891C-4570-B486-7DC7C4FB59C4-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-01-27 10:52         ` Sagi Grimberg
2016-01-27 10:52           ` Sagi Grimberg
2016-01-26 15:25   ` Atchley, Scott
2016-01-26 15:25     ` Atchley, Scott
2016-01-26 15:25     ` Atchley, Scott
     [not found]     ` <5FD20017-B588-42E6-BBDA-2AA8ABDBA42B-1Heg1YXhbW8@public.gmane.org>
2016-01-26 15:29       ` Chuck Lever
2016-01-26 15:29         ` Chuck Lever
     [not found]         ` <D0C5C0B9-A1A2-4428-B3CA-7BBCC5BEF10D-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-01-26 17:00           ` Christoph Hellwig [this message]
2016-01-26 17:00             ` Christoph Hellwig
2016-01-27 16:54 ` [LSF/MM TOPIC/ATTEND] RDMA passive target Boaz Harrosh
     [not found]   ` <56A8F646.5020003-/8YdC2HfS5554TAoqtyWWQ@public.gmane.org>
2016-01-27 17:02     ` [Lsf-pc] " James Bottomley
2016-01-27 17:02       ` James Bottomley
2016-01-27 17:27   ` Sagi Grimberg
     [not found]     ` <56A8FE10.7000309-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2016-01-31 14:20       ` Boaz Harrosh
2016-01-31 14:20         ` Boaz Harrosh
2016-01-31 16:55         ` Yigal Korman
     [not found]           ` <CACTTzNaOChdWN2eS9_kzv6HO_LVib-JVdkmeUn0LDe2eKxPEgA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-02-01 10:36             ` Sagi Grimberg
2016-02-01 10:36               ` Sagi Grimberg

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