I tried to find out for how many seconds/hours iscsi session try to re-establish the old connection if LAN disconnects between Host and Storage (or you can say for how many seconds/hours iscsi will try for login in target).
In my case i had mounted the 1TB partition on my CentOS release 5.3 (Final) host/server from storage. i am using that 1TB volume and able to write data on it. Today i switched off the LAN switch for 1 hour, and after 1 hour i am able to see the iscsi partition mounted on my host/server and its also showing in "fdisk -l" but m not able to write data no it :o ========================================================= Below error when i switch off the LAN switch (the output of /var/log/messages) ========================================================= Apr 4 13:51:15 master kernel: ping timeout of 5 secs expired, last rx 4559435595, last ping 4559440595, now 4559445595 Apr 4 13:51:15 master kernel: connection1:0: iscsi: detected conn error (1011) Apr 4 13:51:16 master iscsid: Kernel reported iSCSI connection 1:0 error (1011) state (3) Apr 4 13:51:18 master /usr/sbin/gmetad[4843]: data_thread() got not answer from any [cluster] datasource Apr 4 13:51:58 master last message repeated 3 times Apr 4 13:53:13 master last message repeated 4 times Apr 4 13:53:16 master kernel: session1: iscsi: session recovery timed out after 120 secs Apr 4 13:53:16 master kernel: iscsi: cmd 0x2a is not queued (8) Apr 4 13:53:16 master last message repeated 17 times Apr 4 13:53:16 master kernel: iscsi: cmd 0x28 is not queued (8) Apr 4 13:53:16 master kernel: iscsi: cmd 0x28 is not queued (8) Apr 4 13:53:16 master kernel: iscsi: cmd 0x2a is not queued (8) Apr 4 13:53:16 master last message repeated 3 times Apr 4 13:53:16 master kernel: sd 14:0:0:6: SCSI error: return code = 0x00010000 Apr 4 13:53:16 master kernel: end_request: I/O error, dev sde, sector 531628095 Apr 4 13:53:16 master kernel: Buffer I/O error on device sde1, logical block 66453504 Apr 4 13:53:16 master kernel: lost page write due to I/O error on sde1 Apr 4 13:53:16 master kernel: iscsi: cmd 0x2a is not queued (8) Apr 4 13:53:16 master last message repeated 2 times Apr 4 13:53:16 master kernel: iscsi: cmd 0x28 is not queued (8) Apr 4 13:53:16 master last message repeated 4 times Apr 4 13:53:16 master kernel: iscsi: cmd 0x2a is not queued (8) Apr 4 13:53:16 master kernel: sd 14:0:0:6: SCSI error: return code = 0x00010000 Apr 4 13:53:16 master kernel: end_request: I/O error, dev sde, sector 475005183 Apr 4 13:53:16 master kernel: Buffer I/O error on device sde1, logical block 59375640 Apr 4 13:53:16 master kernel: lost page write due to I/O error on sde1 Apr 4 13:53:16 master kernel: iscsi: cmd 0x2a is not queued (8) Apr 4 13:53:16 master kernel: sd 14:0:0:6: SCSI error: return code = 0x00010000 Apr 4 13:53:16 master kernel: end_request: I/O error, dev sde, sector 475005175 Apr 4 13:53:16 master kernel: Buffer I/O error on device sde1, logical block 59375639 Apr 4 13:53:16 master kernel: lost page write due to I/O error on sde1 Apr 4 13:53:16 master kernel: iscsi: cmd 0x2a is not queued (8) Apr 4 13:53:16 master kernel: sd 14:0:0:6: SCSI error: return code = 0x00010000 Apr 4 13:53:16 master kernel: end_request: I/O error, dev sde, sector 475005135 Apr 4 13:53:16 master kernel: Buffer I/O error on device sde1, logical block 59375634 Apr 4 13:53:16 master kernel: lost page write due to I/O error on sde1 Apr 4 13:53:16 master kernel: Buffer I/O error on device sde1, logical block 59375635 Apr 4 13:53:16 master kernel: lost page write due to I/O error on sde1 Apr 4 13:53:16 master kernel: Buffer I/O error on device sde1, logical block 59375636 Apr 4 13:53:16 master kernel: lost page write due to I/O error on sde1 =================================================== "dmesg" output when switch off the LAN switch =================================================== iscsi: cmd 0x28 is not queued (6) iscsi: cmd 0x28 is not queued (6) sd 14:0:0:6: SCSI error: return code = 0x00010000 end_request: I/O error, dev sde, sector 633227487 sd 14:0:0:6: SCSI error: return code = 0x00010000 sd 14:0:0:6: rejecting I/O to device being removed end_request: I/O error, dev sde, sector 633228031 Is there any parameter in iscsi file need to set that relogin/re-establish the session automatically whenever LAN switch comes up???? Thanks in advance. ==================================================================================================== -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to open-iscsi+unsubscr...@googlegroups.com. To post to this group, send email to open-iscsi@googlegroups.com. Visit this group at http://groups.google.com/group/open-iscsi?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
