System Hang at Login

Hello all,
I am writing regarding a recent weird event that happened on a Solaris 10 with 7 local zones on it that I have no idea what happened. Maybe some of you experienced this kind of event before.
Trying to login trough ssh to the server, after login prompt would appear and password was typed correctly the login would just hang with no additional information ( if the password was typed wrong it would output the usual : "Login Incorrect" ). In the meantime, connected to the ILOM console and noticed that it was logging every login i was doing trough ssh ( all halted ). Trying to start the /SP/console it would also halt, eventually being left with the only option of restarting the server. After restart, everything presented itself ok, all services starting and no other problem arose.
The server is a Solaris 10 Generic_137111-08 sun4v sparc SUNW,SPARC-Enterprise-T5220.
Trying to debug this I couldn't find any relevant information in messages logs or any crash core dump.
Any idea on what might have happened? Thank you in advance.
Edited by: liviu.b on Sep 10, 2009 7:01 AM
Edited by: liviu.b on Sep 10, 2009 7:01 AM

Hello Andrew, thanks for your input.
Well, I tried looking at /var/adm/messages before and there were absolutely no entries for that day, except the request for Power-Off and the ones at boot-up process. But did found some weird input from the boot-up :
Sep 2 09:39:52 server genunix: [ID 198094 kern.warning] WARNING: Page83 data not standards compliant NETAPP LUN 0
.2:q
Sep 2 09:39:52 server scsi: [ID 243001 kern.warning] WARNING: /pci@0/pci@0/pci@8/pci@0/pci@a/SUNW,emlxs@0,1/fp@0,0 (fcp5):
Failed to create nodes for pwwn=500a098287297376; error=5
Sep 2 09:39:12 server luxadm[167]: [ID 250096 user.error] ID[luxadm.create_fabric_device.2316] configuration failed for line (/d
evices/pci@0/pci@0/pci@8/pci@0/pci@a/SUNW,emlxs@0,1/fp@0,0:fc::500a098287297376) in file: /etc/cfg/fp/fabric_WWN_map. I/O error
We could only link this with this Bug Report (11-Closed:Not Reproducible) : http://bugs.opensolaris.org/view_bug.do;jsessionid=f67c90cc881ef9c29c40600f6cc?bug_id=6228000 (couldn't use the insert link )
As you can see not using NAS(NFS), but SAN ( NetApp). But reading your point I think it makes perfect sense ( yes, the /usr/sbin/quota trap is there in /etc/profile ). The global zone of the system is using server-internal storage, but all the local zones are using external storage.
Edited by: liviu.b on Sep 11, 2009 12:21 AM

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External USB/FW drives 'falling off' or drives spinning down (going to sleep) and I would assume since you have been running 10.4 that the Passport might be older model, perhaps not the latest firmware, maybe not compatible with Macs and with Snow Leopard.
Obviously you want FW800 but for some, USB worked where FW fails.
Hard Reset: do you have another hard drive to boot from to run Disk Warrior? is that updated to 4.2 or later? you never want to run DW from CD. Else, boot from OS X 10.6.5; or Single User and run FSCK. HFS+ doesn't take kindly to hard restarts even though a Safe Boot helps a little, that isn't as good as FSCK or one of the other options.
Disk Warrior Rebuild is more thorough, but if you hold OPTION while clicking on REBUILD it brings up more choices. And you want to scan the full hard drive.
Going back to Aug/Sept 2009, there were a lot of threads about external hard drive issues. Wish I could point to a good one.

System Hang at Login

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