Hi there,
I've been trying a setup with 2x ESXI sharing LUN from 1x IETD backed by DRBD(primary/secondary) setup, and I keep getting the warning from DRBD
http://119368.533969 block drbd1: istiod1[5646] Concurrent local write detected! [DISCARD L] new: 186824832s +512; pending: 186824832s +512
http://119372.621872 block drbd1: istiod1[5645] Concurrent local write detected! [DISCARD L] new: 186824832s +512; pending: 186824832s +512
http://119783.013975 block drbd1: istiod1[5642] Concurrent local write detected! [DISCARD L] new: 186824832s +512; pending: 186824832s +512
http://120221.605624 block drbd1: istiod1[5645] Concurrent local write detected! [DISCARD L] new: 186824832s +512; pending: 186824832s +512
A deep discussion happening on iscsitarget-devel@lists.sourceforge.net involves both IETD & DRBD maintainers suggest this is not a iscsi issue or a DRBD issue, only thing I can think of is the VMFS is actually trying to submit conflicting commands? And interestingly, no matter what vm operation I do, what kind of VM I run, I always getting the same alert (same sector, same size, everything).
So, anyone can explain this?
