[ovirt-users] iSCSI domain on 4kn drives

[David Teigland]

On Sat, Nov 11, 2017 at 12:24:25AM +0000, Nir Soffer wrote:
> David, do you know if 4k disks over NFS works for sanlock?

When using files, sanlock always does 512 byte i/o.  This can be a problem
when there are 4k disks used under NFS.  On disks, sanlock detects the
sector size (with libblkid) and uses 512/4k accordingly.

If vdsm knows when to use 4k i/o over files, I can add a sanlock flag that
vdsm can use to create 4k sanlock leases.

Dave