Hello I have 2 nodes which manage iscsi targets which exported for svn and web server usage. But I have follow problem when one of the nodes are dead (when i do "shutdown -P now") and happens resource migration from one node to another (ipaddr, iscsi target and so on) on iscsi initiator side I often see follow in log:
Apr 1 19:05:43 web-server kernel: [5437679.000891] sd 0:0:0:1: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Apr 1 19:05:43 web-server kernel: [5437679.000897] sd 0:0:0:1: [sda] Sense Key : Illegal Request [current] Apr 1 19:05:43 web-server kernel: [5437679.000902] Info fld=0x0 Apr 1 19:05:43 web-server kernel: [5437679.000904] sd 0:0:0:1: [sda] Add. Sense: Logical unit not supported Apr 1 19:05:43 web-server kernel: [5437679.000910] sd 0:0:0:1: [sda] CDB: Write(10): 2a 00 26 08 7d c8 00 00 08 00 Apr 1 19:05:43 web-server kernel: [5437679.000920] end_request: I/O error, dev sda, sector 638090696 Apr 1 19:05:43 web-server kernel: [5437679.000937] __ratelimit: 28 callbacks suppressed Apr 1 19:05:43 web-server kernel: [5437679.000940] Buffer I/O error on device sda, logical block 79761337 Apr 1 19:05:43 web-server kernel: [5437679.000948] lost page write due to I/O error on sda Apr 1 19:05:43 web-server kernel: [5437679.001145] sd 0:0:0:1: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Apr 1 19:05:43 web-server kernel: [5437679.001149] sd 0:0:0:1: [sda] Sense Key : Illegal Request [current] Apr 1 19:05:43 web-server kernel: [5437679.001153] Info fld=0x0 Apr 1 19:05:43 web-server kernel: [5437679.001154] sd 0:0:0:1: [sda] Add. Sense: Logical unit not supported Apr 1 19:05:43 web-server kernel: [5437679.001159] sd 0:0:0:1: [sda] CDB: Write(10): 2a 00 20 fd 5f d8 00 00 08 00 Apr 1 19:05:43 web-server kernel: [5437679.001168] end_request: I/O error, dev sda, sector 553476056 Apr 1 19:05:43 web-server kernel: [5437679.001178] Buffer I/O error on device sda, logical block 69184507 Apr 1 19:05:43 web-server kernel: [5437679.001186] lost page write due to I/O error on sda Apr 1 19:05:43 web-server kernel: [5437679.001203] JBD: Detected IO errors while flushing file data on sda Apr 1 19:05:43 web-server kernel: [5437679.002116] sd 0:0:0:1: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Apr 1 19:05:43 web-server kernel: [5437679.002120] sd 0:0:0:1: [sda] Sense Key : Illegal Request [current] Apr 1 19:05:43 web-server kernel: [5437679.002124] Info fld=0x0 Apr 1 19:05:43 web-server kernel: [5437679.002125] sd 0:0:0:1: [sda] Add. Sense: Logical unit not supported Apr 1 19:05:43 web-server kernel: [5437679.002130] sd 0:0:0:1: [sda] CDB: Write(10): 2a 00 13 f8 7b 28 00 00 18 00 Apr 1 19:05:43 web-server kernel: [5437679.002138] end_request: I/O error, dev sda, sector 335051560 Apr 1 19:05:43 web-server kernel: [5437679.002160] Aborting journal on device sda. Apr 1 19:05:43 web-server kernel: [5437679.002864] sd 0:0:0:1: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Apr 1 19:05:43 web-server kernel: [5437679.002868] sd 0:0:0:1: [sda] Sense Key : Illegal Request [current] Apr 1 19:05:43 web-server kernel: [5437679.002872] Info fld=0x0 Apr 1 19:05:43 web-server kernel: [5437679.002874] sd 0:0:0:1: [sda] Add. Sense: Logical unit not supported Apr 1 19:05:43 web-server kernel: [5437679.002878] sd 0:0:0:1: [sda] CDB: Write(10): 2a 00 13 f8 10 10 00 00 08 00 Apr 1 19:05:43 web-server kernel: [5437679.002887] end_request: I/O error, dev sda, sector 335024144 Apr 1 19:05:43 web-server kernel: [5437679.002898] Buffer I/O error on device sda, logical block 41878018 Apr 1 19:05:43 web-server kernel: [5437679.002906] lost page write due to I/O error on sda Apr 1 19:05:45 web-server kernel: [5437681.360912] ext3_abort called. Apr 1 19:05:45 web-server kernel: [5437681.360928] EXT3-fs error (device sda): ext3_journal_start_sb: Detected aborted journal Apr 1 19:05:45 web-server kernel: [5437681.360939] Remounting filesystem read-only Apr 1 19:06:06 web-server kernel: [5437702.070344] connection1:0: detected conn error (1020) And after this file system remounted in read only mode. How can i prevent this behaviour? I found follow discussion http://www.mail-archive.com/open-iscsi@googlegroups.com/msg00554.html, but how apply solution in it for my case, сertainly if this is my case. PS: as iscsi target I use ietd
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