On 04/28/2010 10:40 AM, maguar887 wrote:
We are currently running open iscsi version 2.0-871 on RHEL 5.3 (2.6.18-92.1.6.0.2.el5) against a Dell Equallogic iScsi SAN group (firmware 4.3.5)
You need to upgrade your kernel. It had a bug with eql targets in the async logout path. It is fixed in 5.4 and 5.5 kernels.
Our vendor (Dell/Equallogic) does not recommend adjusting any settings in iscsid.conf so we are running all the defaults I am interested in this configuration option. "node.session.iscsi.FastAbort = No" which is disabled by default, but it is mentioned that it can be beneficial for Equallogic. Can anyone else using Equallogic comment if this option has increased stability during volume operations such as moving volumes between storage pools/arrays
It has nothing to do with your problem. It only comes into play when a scsi command times out. In that path you do not get 0x00070000 errors.
Logs below: View from iscsi san: INFO 4/18/10 11:18:11 AM SATA01 iSCSI session to target '10.30.0.84:3260, iqn.2001-05.com.equallogic: 6-8a0900-540e73901-9410003608347990-disk2' from initiator '10.30.0.225:16261, iqn.1994-05.com.redhat:ec43807e8964' was closed. Logout request was received from the initiator. INFO 4/18/10 11:18:15 AM SATA01 iSCSI login to target '10.30.0.52:3260, iqn.2001-05.com.equallogic: 6-8a0900-540e73901-9410003608347990-disk2' from initiator '10.30.0.225:51784, iqn.1994-05.com.redhat:ec43807e8964' successful, using Jumbo Frame length. View from linux var/log/messages Apr 18 11:18:11 serv02 kernel: sd 24:0:0:0: SCSI error: return code = 0x00070000 Apr 18 11:18:11 serv02 kernel: end_request: I/O error, dev sdt, sector 27424 Apr 18 11:18:11 serv02 kernel: sd 24:0:0:0: SCSI error: return code = 0x00070000 Apr 18 11:18:11 serv02 kernel: end_request: I/O error, dev sdt, sector 27520 Apr 18 11:18:11 serv02 kernel: Buffer I/O error on device sdt1, logical block 3436 Apr 18 11:18:11 serv02 kernel: lost page write due to I/O error on sdt1 Apr 18 11:18:11 serv02 kernel: Aborting journal on device sdt1. Apr 18 11:18:11 serv02 kernel: ext3_abort called. Apr 18 11:18:11 serv02 kernel: EXT3-fs error (device sdt1): ext3_journal_start_sb: Detected aborted journal Apr 18 11:18:11 serv02 kernel: Remounting filesystem read-only Apr 18 11:18:12 serv02 iscsid: Target requests logout within 3 seconds for connection Apr 18 11:18:16 serv02 iscsid: connection22:0 is operational after recovery (1 attempts)
-- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/open-iscsi?hl=en.
