Hi, I've configured iscsi on RHEL 5.7 (last kernel) with a netapp disk array and I'm seeing connection problems every 20 minutes (the connection is dropped and comes back a few minutes or seconds later).
Here are the messages in /var/log/messages : Nov 6 04:29:01 bdd4a kernel: connection1:0: ping timeout of 5 secs expired, recv timeout 5, last rx 4356175664, last ping 4356180664, now 4356185664 Nov 6 04:29:01 bdd4a kernel: connection1:0: detected conn error (1011) Nov 6 04:29:02 bdd4a iscsid: Kernel reported iSCSI connection 1:0 error (1011) state (3) Nov 6 04:29:07 bdd4a kernel: session1: session recovery timed out after 5 secs Nov 6 04:29:07 bdd4a kernel: sd 8:0:0:0: SCSI error: return code = 0x000f0000 Nov 6 04:29:07 bdd4a kernel: end_request: I/O error, dev sda, sector 0 Nov 6 04:29:07 bdd4a multipathd: sda: directio checker reports path is down Nov 6 04:29:07 bdd4a multipathd: checker failed path 8:0 in map quorum Nov 6 04:29:07 bdd4a multipathd: quorum: remaining active paths: 1 Nov 6 04:29:07 bdd4a kernel: device-mapper: multipath: Failing path 8:0. Nov 6 04:29:07 bdd4a multipathd: dm-8: add map (uevent) Nov 6 04:29:07 bdd4a multipathd: dm-8: devmap already registered Nov 6 04:29:12 bdd4a kernel: sd 8:0:0:0: SCSI error: return code = 0x000f0000 Nov 6 04:29:12 bdd4a kernel: end_request: I/O error, dev sda, sector 0 Nov 6 04:29:12 bdd4a multipathd: sda: directio checker reports path is down Nov 6 04:29:17 bdd4a kernel: sd 8:0:0:0: SCSI error: return code = 0x000f0000 Nov 6 04:29:17 bdd4a kernel: end_request: I/O error, dev sda, sector 0 Nov 6 04:29:17 bdd4a multipathd: sda: directio checker reports path is down Nov 6 04:29:22 bdd4a kernel: sd 8:0:0:0: SCSI error: return code = 0x000f0000 Nov 6 04:29:22 bdd4a kernel: end_request: I/O error, dev sda, sector 0 Nov 6 04:29:22 bdd4a multipathd: sda: directio checker reports path is down Nov 6 04:29:27 bdd4a kernel: sd 8:0:0:0: SCSI error: return code = 0x000f0000 Nov 6 04:29:27 bdd4a kernel: end_request: I/O error, dev sda, sector 0 Nov 6 04:29:27 bdd4a multipathd: sda: directio checker reports path is down Nov 6 04:29:29 bdd4a iscsid: connection1:0 is operational after recovery (2 attempts) Nov 6 04:29:32 bdd4a multipathd: sda: directio checker reports path is up I've tried multiple settings in /etc/iscsid.conf and nothing seems to work. And besides I've already configured lots of Linux server with iscsi and never had this kind of problem. I've also traced the network with tcpdump and analyzed it with wireshark : ARP request about the server from Netapp ARP response from the server -> the problem always seem to happen after an ARP request from the netapp array RST sent from the server on the iscsi connection -> !!!!! All NOP in, NOP out seemed to be OK just before, any idea why this problem happen ? Thanks. -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-iscsi@googlegroups.com. To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/open-iscsi?hl=en.
