Benjamin: thanks for replying. We have found the root cause to be
stale read buffer at backend.
After zeroing out read buffer upon read miss the problem is gone.
-Shawn
On Tue, Apr 25, 2017 at 9:39 AM, Benjamin Marzinski wrote:
> On Wed, Apr 19, 2017 at 02:58:47PM -0700, Neutron Sharc wr
I'm seeing a strange problem (iscsi LUNs + dm-multipath + lvm) that I
will walk through an example to explain.
I have an iscsi target machine that exposes many iscsi LUNs. Iscsi
initiator logs in 4 iscsi LUNs (vol1_[0-3]), creates a multipath
device for each LUN (/dev/mapper/vol1_[0-3]), and comb
