Just spent 12 hours trying to upgrade from 6.5.6 to 7.1. (working with
professional services). The upgrade appears to have gone smoothly. I can browse
images, emm looks clean, all the policies converted fine and are browseable in
the console, etc.... BUT we are having some strange issues with the sg driver.
Config: Solaris 10 update 9 on a T5240 (sun4v). Quantum i500 18 LTO4 drives
(latest library and drive firmware). ProtecTIER VTL emulating 80 dlt drives.
Right from the jump I see the first problem.. After it appeared my devices were
fubar we started going thru the gamut of rebuilding the SG links. We go to
"rem_drv sg" (also tried modunload -i <instance>) and it claims sg is busy and
won't unload. I've been using netbackup since 3.x on solaris 2.x thru 10 and
have never seen the sg driver unable to unload. I even went as far as
completely rebuilding /dev/rmt as well.
So I have netbackup set to not auto-start on boot. After reboots -- sometimes
the sg driver is loaded, sometimes its not. odd.
The core problem we had was a job would submit a mount request, the library
would mount the tape (verified), but the job never gets informed that the mount
is complete. (bptm is still waiting to here from ltid) Normally I would suspect
device mismatching/sg issues or library/communication issues but not in this
case.
robtest can mount and unmount tapes.
At this point we bumped up sg verbose logging to 9 and saw this gem during boot:
Boot device: disk File and args:
SunOS Release 5.10 Version Generic_144488-08 64-bit
Copyright (c) 1983, 2010, Oracle and/or its affiliates. All rights reserved.
Symantec SCSA Generic Revision: 3.7
WARNING: sg: _init failed on linkage 6
Wait, not weird enough yet? It doesn't do that on every reboot. Its completely
sporadic.
I looked at the sg driver file. File size matches what the backline engineer
shows on his system. The permissions were the same. Doesn't appear to be a
corrupt file or possibly the version from the 6.5.6 installation.
I just have a gut feeling this binary has issues with either update 9 or sun4v.
O was hoping to confirm if anyone is running 7.1 on update 9 on sun4v.
At this point I've rolled back and abandoned this upgrade attempt. (oh how I
love ZFS)
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