Hi all... I have four CentOS 5.4 (2.6.18-164.11.1.el5) servers with iscsid version 2.0-871. Two are misbehaving despite identical configuration. They all connect to Enhance Tech RS8-IP4 array the same way, directly NIC-to-NIC without a switch, physically separate from LAN. I created four targets, one per port, and four separate volumes/LUNs. Pasted below is the config and error log. About a minute after a successful login, the timeouts/errors begin and keep coming constantly pretty much every minute whenever the session is logged in, regardless of mount state. The problematic units are also often very slow logging in, mounting, even directory listing at times. Also, they sometimes time out and remount the fs read-only in the middle of a large backup run. The other two servers exhibit no such problems whatsoever. I'm very new to iSCSI, not sure where to start looking. Would be grateful if someone could point me in the right direction... **CONFIG** node.startup = automatic node.session.timeo.replacement_timeout = 120 node.conn[0].timeo.login_timeout = 15 node.conn[0].timeo.logout_timeout = 15 node.conn[0].timeo.noop_out_interval = 5 node.conn[0].timeo.noop_out_timeout = 5 node.session.err_timeo.abort_timeout = 15 node.session.err_timeo.lu_reset_timeout = 20 node.session.initial_login_retry_max = 8 node.session.cmds_max = 128 node.session.queue_depth = 32 node.session.iscsi.InitialR2T = No node.session.iscsi.ImmediateData = Yes node.session.iscsi.FirstBurstLength = 262144 node.session.iscsi.MaxBurstLength = 16776192 node.conn[0].iscsi.MaxRecvDataSegmentLength = 262144 discovery.sendtargets.iscsi.MaxRecvDataSegmentLength = 32768 node.conn[0].iscsi.HeaderDigest = None node.session.iscsi.FastAbort = Yes
**/VAR/LOG/MESSAGES** Dec 13 17:10:57 db4 kernel: Loading iSCSI transport class v2.0-871. Dec 13 17:10:57 db4 kernel: cxgb3i: tag itt 0x1fff, 13 bits, age 0xf, 4 bits. Dec 13 17:10:57 db4 kernel: iscsi: registered transport (cxgb3i) Dec 13 17:10:57 db4 kernel: Broadcom NetXtreme II CNIC Driver cnic v2.0.1 (Oct 01, 2009) Dec 13 17:10:57 db4 kernel: Broadcom NetXtreme II iSCSI Driver bnx2i v2.0.1e (June 22, 2009) Dec 13 17:10:57 db4 kernel: iscsi: registered transport (bnx2i) Dec 13 17:10:58 db4 kernel: iscsi: registered transport (tcp) Dec 13 17:10:58 db4 kernel: iscsi: registered transport (iser) Dec 13 17:10:58 db4 iscsid: iSCSI logger with pid=24781 started! Dec 13 17:10:59 db4 iscsid: transport class version 2.0-871. iscsid version 2.0-871 Dec 13 17:10:59 db4 iscsid: iSCSI daemon with pid=24782 started! Dec 13 17:11:07 db4 kernel: scsi15 : iSCSI Initiator over TCP/IP Dec 13 17:11:07 db4 kernel: Vendor: ETIUSA Model: UltraStorRS8IP4 Rev: 1.1. Dec 13 17:11:07 db4 kernel: Type: Direct-Access ANSI SCSI revision: 04 Dec 13 17:11:07 db4 kernel: SCSI device sdc: 288374784 4096-byte hdwr sectors (1181183 MB) Dec 13 17:11:07 db4 kernel: sdc: Write Protect is off Dec 13 17:11:07 db4 kernel: SCSI device sdc: drive cache: write back Dec 13 17:11:07 db4 kernel: SCSI device sdc: 288374784 4096-byte hdwr sectors (1181183 MB) Dec 13 17:11:07 db4 kernel: sdc: Write Protect is off Dec 13 17:11:07 db4 kernel: SCSI device sdc: drive cache: write back Dec 13 17:11:07 db4 kernel: sdc: sdc1 Dec 13 17:11:07 db4 kernel: sd 15:0:0:0: Attached scsi disk sdc Dec 13 17:11:07 db4 kernel: sd 15:0:0:0: Attached scsi generic sg2 type 0 Dec 13 17:11:08 db4 iscsid: connection1:0 is operational now Dec 13 17:11:59 db4 kernel: connection1:0: ping timeout of 5 secs expired, recv timeout 5, last rx 21989742817, last ping 21989747817, now 21989752817 Dec 13 17:11:59 db4 kernel: connection1:0: detected conn error (1011) Dec 13 17:12:00 db4 iscsid: Kernel reported iSCSI connection 1:0 error (1011) state (3) Dec 13 17:12:17 db4 iscsid: connection1:0 is operational after recovery (2 attempts) Dec 13 17:13:06 db4 kernel: connection1:0: ping timeout of 5 secs expired, recv timeout 5, last rx 21989810632, last ping 21989815632, now 21989820632 Dec 13 17:13:06 db4 kernel: connection1:0: detected conn error (1011) Dec 13 17:13:07 db4 iscsid: Kernel reported iSCSI connection 1:0 error (1011) state (3) Dec 13 17:13:25 db4 iscsid: connection1:0 is operational after recovery (2 attempts) *(mounting now) Dec 13 17:13:34 db4 kernel: kjournald starting. Commit interval 5 seconds Dec 13 17:13:34 db4 kernel: EXT3 FS on sdc1, internal journal Dec 13 17:13:34 db4 kernel: EXT3-fs: mounted filesystem with ordered data mode. *(mount successful) Dec 13 17:14:14 db4 kernel: connection1:0: ping timeout of 5 secs expired, recv timeout 5, last rx 21989877855, last ping 21989882855, now 21989887855 Dec 13 17:14:14 db4 kernel: connection1:0: detected conn error (1011) Dec 13 17:14:14 db4 iscsid: Kernel reported iSCSI connection 1:0 error (1011) state (3) Dec 13 17:14:32 db4 iscsid: connection1:0 is operational after recovery (2 attempts) Dec 13 17:15:02 db4 kernel: connection1:0: ping timeout of 5 secs expired, recv timeout 5, last rx 21989925928, last ping 21989930928, now 21989935928 Dec 13 17:15:02 db4 kernel: connection1:0: detected conn error (1011) Dec 13 17:15:02 db4 iscsid: Kernel reported iSCSI connection 1:0 error (1011) state (3) Dec 13 17:15:20 db4 iscsid: connection1:0 is operational after recovery (2 attempts) Thanks guys, -Paul -- ea926p -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-is...@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.
