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Msteel

Sector repair occurred

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We've had some trouble lately with out X16. A workstation (OS X) will hang trying to access it and the web interface to the GlobalSAN will be sluggish or totally unresponsive. I have managed to get a log file a couple of times (log files seem to disappear upon reboot), but rarely can I restart it through the web interface. Here is a sample log file just before the crash:

Jun 4 12:17:49 X16 kernel: twe1: port 2: sector repair occurred

Jun 10 08:07:32 X16 utarget_fsdisk: UNKNOWN SCSI OPCODE 0x1b

Jun 10 12:57:44 X16 kernel: twe1: port 2: sector repair occurred

Jun 10 12:58:08 X16 utarget_fsdisk: Timeout of iqn.2005-03.com.studionetworksolutions:mac-1667677261,i,80534e530000 from iqn.2000-08.com.studionetworksolutions.globalsan:x16-2,t,0017 cid 0

Jun 10 12:58:08 X16 utarget_fsdisk: Timedout iqn.2005-03.com.studionetworksolutions:mac-1667677261,i,80534e530000 to iqn.2000-08.com.studionetworksolutions.globalsan:x16-2,t,0017 cid 0 stats: Recv: 4123293044 b 1365537 PDUs Sent: 11289155084 b 2026303 PDUs

Jun 10 12:58:25 X16 utarget_fsdisk: Timeout of iqn.2005-03.com.studionetworksolutions:mac-1483403293,i,80534e530000 from iqn.2000-08.com.studionetworksolutions.globalsan:x16-1,t,0005 cid 0

Jun 10 12:58:25 X16 utarget_fsdisk: Timedout iqn.2005-03.com.studionetworksolutions:mac-1483403293,i,80534e530000 to iqn.2000-08.com.studionetworksolutions.globalsan:x16-1,t,0005 cid 0 stats: Recv: 13407536976 b 2726667 PDUs Sent: 23853262808 b 3379904 PDUs

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We've had some trouble lately with out X16. A workstation (OS X) will hang trying to access it and the web interface to the GlobalSAN will be sluggish or totally unresponsive. I have managed to get a log file a couple of times (log files seem to disappear upon reboot), but rarely can I restart it through the web interface. Here is a sample log file just before the crash:

Jun 4 12:17:49 X16 kernel: twe1: port 2: sector repair occurred

Jun 10 08:07:32 X16 utarget_fsdisk: UNKNOWN SCSI OPCODE 0x1b

Jun 10 12:57:44 X16 kernel: twe1: port 2: sector repair occurred

Jun 10 12:58:08 X16 utarget_fsdisk: Timeout of iqn.2005-03.com.studionetworksolutions:mac-1667677261,i,80534e530000 from iqn.2000-08.com.studionetworksolutions.globalsan:x16-2,t,0017 cid 0

Jun 10 12:58:08 X16 utarget_fsdisk: Timedout iqn.2005-03.com.studionetworksolutions:mac-1667677261,i,80534e530000 to iqn.2000-08.com.studionetworksolutions.globalsan:x16-2,t,0017 cid 0 stats: Recv: 4123293044 b 1365537 PDUs Sent: 11289155084 b 2026303 PDUs

Jun 10 12:58:25 X16 utarget_fsdisk: Timeout of iqn.2005-03.com.studionetworksolutions:mac-1483403293,i,80534e530000 from iqn.2000-08.com.studionetworksolutions.globalsan:x16-1,t,0005 cid 0

Jun 10 12:58:25 X16 utarget_fsdisk: Timedout iqn.2005-03.com.studionetworksolutions:mac-1483403293,i,80534e530000 to iqn.2000-08.com.studionetworksolutions.globalsan:x16-1,t,0005 cid 0 stats: Recv: 13407536976 b 2726667 PDUs Sent: 23853262808 b 3379904 PDUs

Hi Matt,

Which version of globalSAN are you using?

Which version of OSX?

regards,

ryan

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Hi Matt,

Which version of globalSAN are you using?

Which version of OSX?

regards,

ryan

These are the versions we are using on our various workstations:

X-16 version 4.8.1

PowerMac G5 OSX 10.4.8

* GlobalSAN iSCSI v. 3.0 build 1150 (crashes now when I try to run it, it didn't use to do that, persistent targets still connect)

* SANmp Admin 1.6.0 build 16

* SANmp Client 1.6.0 build 16

iMac G5 OS X 10.4.9

* GlobalSAN iSCSI v 2.0.0 build 1119 (doesn't crash)

* SANmp client v 1.5.0 build 33

iMac Intel OS X 10.4.10

* GlobalSAN iSCSI v 3.0 build 1150 (this one crashes too, but persistent targets still connect)

* SANmp Client v 2.0.0.34

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These are the versions we are using on our various workstations:

X-16 version 4.8.1

PowerMac G5 OSX 10.4.8

* GlobalSAN iSCSI v. 3.0 build 1150 (crashes now when I try to run it, it didn't use to do that, persistent targets still connect)

* SANmp Admin 1.6.0 build 16

* SANmp Client 1.6.0 build 16

iMac G5 OS X 10.4.9

* GlobalSAN iSCSI v 2.0.0 build 1119 (doesn't crash)

* SANmp client v 1.5.0 build 33

iMac Intel OS X 10.4.10

* GlobalSAN iSCSI v 3.0 build 1150 (this one crashes too, but persistent targets still connect)

* SANmp Client v 2.0.0.34

Hi Matt, thanks for emailing the logs to us. We'll have a look and let you know. I do recommend having consistent SANmp and globalSAN versions on all workstations.

Talk soon,

ryan

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Update - We stopped having this problem quite some time ago, and never really found out exactly what was going on. As best as I can tell, one of our workstations was bringing down the X16 somehow. It was a Windows client that had never been stable when accessing the SAN. For that reason and others, we never ran SANmp on it anymore (although the Microsoft iSCSI initiator was still there). It was a painless solution to pull the plug (literally - the direct network connection to the X16). From that day we have been trouble free.

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Update - We stopped having this problem quite some time ago, and never really found out exactly what was going on. As best as I can tell, one of our workstations was bringing down the X16 somehow. It was a Windows client that had never been stable when accessing the SAN. For that reason and others, we never ran SANmp on it anymore (although the Microsoft iSCSI initiator was still there). It was a painless solution to pull the plug (literally - the direct network connection to the X16). From that day we have been trouble free.

Thanks for the follow up!

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