Hi,
Randomly we get Open-iSCSI "conn errors" when connecting to an Infortrend A16E-G2130-4 storage array. We had discussed about this earlier in the list, see: http://tr.im/DVQm http://tr.im/DVQp Open-iSCSI logs this: =============================================== Nov 2 18:34:02 vz-17 kernel: ping timeout of 5 secs expired, last rx 408250499, last ping 408249467, now 408254467 Nov 2 18:34:02 vz-17 kernel: connection1:0: iscsi: detected conn error (1011) Nov 2 18:34:03 vz-17 iscsid: Kernel reported iSCSI connection 1:0 error (1011) state (3) Nov 2 18:34:07 vz-17 iscsid: connection1:0 is operational after recovery (1 attempts) Nov 2 18:34:52 vz-17 kernel: ping timeout of 5 secs expired, last rx 408294833, last ping 408299833, now 408304833 Nov 2 18:34:52 vz-17 kernel: connection1:0: iscsi: detected conn error (1011) Nov 2 18:34:53 vz-17 iscsid: Kernel reported iSCSI connection 1:0 error (1011) state (3) Nov 2 18:34:57 vz-17 iscsid: connection1:0 is operational after recovery (1 attempts) =============================================== Running on CentOS 5.4 with "iscsi-initiator-utils-6.2.0.871-0.10.el5"; I think it's not a Open-iSCSI bug as Mike suggested at: http://groups.google.com/group/open-iscsi/msg/fe37156096b2955f I have only this error when connecting to Infortrend storage, and not with NetApp, Nexsan, etc. *connected in the same SAN*. Using Wireshark I see a lot of "TCP Dup ACK", "TCP ACKed lost segment", etc. and iSCSI session finally ends in timeout, see a screenshot here: http://tinyurl.com/ykpvckn Using Wireshark IO graphs I get this strange report about TCP/IP errors: http://tinyurl.com/ybm4m8x And this is another report in the same SAN connecting to a NetApp: http://tinyurl.com/ycgc8ul Those TCP/IP errors only occurs when connecting to Infortrend storage.. and no with other targets in the same SAN (using same switch infrastructure); is there anyway to deal with this using Open-iSCSI? As I see in Internet, there're a lot of Infortrend's users suffering this behavior. Thanks! P.D: speed and duplex configuration is correct in all point, there aren't CRC errors in the switch. -- Santi Saez http://woop.es --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
