Re: [dm-devel] NVMeoF multi-path setup

2016-07-13 Thread Sagi Grimberg
On 01/07/16 01:52, Mike Snitzer wrote: On Thu, Jun 30 2016 at 5:57pm -0400, Ming Lin wrote: On Thu, 2016-06-30 at 14:08 -0700, Ming Lin wrote: Hi Mike, I'm trying to test NVMeoF multi-path. root@host:~# lsmod |grep dm_multipath dm_multipath 24576 0

Re: [dm-devel] NVMeoF multi-path setup

2016-06-30 Thread Keith Busch
On Thu, Jun 30, 2016 at 06:52:07PM -0400, Mike Snitzer wrote: > AFAIK, hch had Intel disable that by default in the hopes of avoiding > people having dm-multipath "just work" with NVMeoF. (Makes me wonder > what other unpleasant unilateral decisions were made because some > non-existant NVMe

Re: [dm-devel] NVMeoF multi-path setup

2016-06-30 Thread Mike Snitzer
On Thu, Jun 30 2016 at 6:52pm -0400, Mike Snitzer wrote: > Also, just so you're aware, I've staged bio-based dm-multipath support > for the 4.8 merge window. Please see either the 'for-next' or 'dm-4.8' > branch in linux-dm.git: >

Re: [dm-devel] NVMeoF multi-path setup

2016-06-30 Thread Mike Snitzer
On Thu, Jun 30 2016 at 5:57pm -0400, Ming Lin wrote: > On Thu, 2016-06-30 at 14:08 -0700, Ming Lin wrote: > > Hi Mike, > > > > I'm trying to test NVMeoF multi-path. > > > > root@host:~# lsmod |grep dm_multipath > > dm_multipath 24576 0 > > root@host:~# ps aux |grep

Re: [dm-devel] NVMeoF multi-path setup

2016-06-30 Thread Ming Lin
On Thu, Jun 30, 2016 at 2:57 PM, Ming Lin wrote: > > There are two problems: > > 1. there is no "/block/" in the path > > /sys/devices/virtual/nvme-fabrics/block/nvme0/nvme0n1 Typo, the path is: /sys/devices/virtual/nvme-fabrics/ctl/nvme0/nvme0n1 > > 2. nvme was blacklisted.

Re: [dm-devel] NVMeoF multi-path setup

2016-06-30 Thread Ming Lin
On Thu, 2016-06-30 at 14:08 -0700, Ming Lin wrote: > Hi Mike, > > I'm trying to test NVMeoF multi-path. > > root@host:~# lsmod |grep dm_multipath > dm_multipath 24576 0 > root@host:~# ps aux |grep multipath > root 13183 0.0 0.1 238452 4972 ?SLl 13:41 0:00 >

[dm-devel] NVMeoF multi-path setup

2016-06-30 Thread Ming Lin
Hi Mike, I'm trying to test NVMeoF multi-path. root@host:~# lsmod |grep dm_multipath dm_multipath 24576 0 root@host:~# ps aux |grep multipath root 13183 0.0 0.1 238452 4972 ?SLl 13:41 0:00 /sbin/multipathd I have nvme0 and nvme1 that are 2 paths to the same NVMe