On Tue, 2014-06-10 at 19:40 -0700, Jun Wu wrote: > On Tue, Jun 10, 2014 at 3:38 PM, Vasu Dev <vasu.dev@xxxxxxxxxxxxxxx> wrote: > > On Tue, 2014-06-10 at 09:46 -0700, Jun Wu wrote: > >> This a Supermicro chassis with redundant power supplies. We see the > >> same failures with both SSDs or HDDs. > >> The same tests pass with non-fcoe protocol, i.e. iSCSI or AoE. > >> > > > > Is iSCSI or AoE tests with same TCM core kernel with same target and > > host NICs/switch ? > > We tested AoE with the same hardware/switch and test setup. AoE works > except that it is not enterprise protocol and it doesn't provide > performance. It doesn't use TCM. > > > > > What NICs in your chassis? As I mentioned before that "DCB and PFC PAUSE > > typically used and required by fcoe", but you are using PAUSE and switch > > cannot be eliminated as you mentioned before, these could affect more to > > FCoE than other protocols, so can you ensure IO errors are not due to > > frames losses w/o DCB/PFC in your setup ? > > The NIC is: > [root@poc1 log]# lspci | grep 82599 > 08:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit > SFI/SFP+ Network Connection (rev 01) > > The issue should not be caused by frame losses. The systems work fine > with other protocols. > > > > > While possibly abort issues at target with zero timeout values but you > > could avoid them completely by increasing scsi timeout and disabling REC > > as discussed before. > > > > Please use inline response and avoid top posts. > > > > Thanks, > > Vasu > > > > Is the following cmd_per_lun fcoe related? Its default value is 3. And > it doesn't allow me to change. > /sys/devices/pci0000:00/0000:00:05.0/0000:08:00.0/net/p4p1/ctlr_2/host9/scsi_host/host9/cmd_per_lun > > Nab, > Could you please send the patches you mentioned for me to test? The two are in for-next here: tcm_fc: Generate TASK_SET_FULL status for DataIN failures https://git.kernel.org/cgit/linux/kernel/git/nab/target-pending.git/commit/?h=for-next&id=b3e5fe1688b998ba5287a68667ef7cc568739e44 tcm_fc: Generate TASK_SET_FULL status for response failures https://git.kernel.org/cgit/linux/kernel/git/nab/target-pending.git/commit/?h=for-next&id=6dbe7f4e97d55eefcb471c41c16b62fca5f10c68 --nab -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
