Unbelievably i have seen this yesterday as a windows guy asked me if i
knew about it seeing as i support Netbackup on solaris.
The fix he got which worked was to disable the Removable storage manager
service. The errors are no more.
That was on a windows 2003 setup with netbackmup 5.1 mp4
Roger Dombrowski wrote:
Hi Blaine,
I have been looking to try and solve this problem for two sites that
I'm working with right now
and we're not having much luck either. In my travels I've talked to a
few folks that have seen
this "External Event" issue caused by monitoring software. One client
in particular found that one
of Sun's monitoring tools was sending out scsi inquiries and causing
the "external event rewinds".
I also ran across a post on this mailing list that documents about 30
such applications that have
been known to cause this type of behaviour. Try searching this list
for "external event". If a get
a chance, I'll try and dig it up and send you the post I'm thinking of.
Through the course of my research I've basically found that two things
are trying to communicate
with the drive and most folks check out the data path (hba's,
switches, bridges,...) to look for problems.
Maybe the upgrade stepped on some scsi reservation setting. If I find
anything else, I'll post to the
list...
Blaine Robison wrote:
I am having a similar issue. I have a windows 2000 master and a pair
of sun
480's with 8 LTO2 drives shared between them. I get External Event
caused
rewind error and the tapes get frozen or the drives go down. I didn't
have the
problem unti lI upgraded to 5.1 MP4. I have gone over the entire
configuration
and cannot find a problem.
Has anyone else seen this and found a resolution?
--- [EMAIL PROTECTED] wrote:
Have you tried /var/adm/messages (Solaris) or the equivalent log ?
Regards
Michael
On Wed, 18 Jan 2006 15:00:24 +0000, Dave Markham wrote
I have 1 master server, and 2 media servers connected over fiber to
an L700. Im not sure what the switch in the middle is as didnt
install the system or have any info on it.
There are 5 drives in the L700 and 3 of them are shared with sso
option to the master, and both media servers.
People i have had an issue lately with drives being not visible to
one of my media servers.
I have fixed this by unloading the fibre hba using cfgadm and
loading it again. It then can see the devices under sgscan and has
seen them under /dev/rmt
I also noticed the customer had removed a /etc/hosts entry for the
media servers to talk to each other by the correct name so i put
that back in and can now talk on port 13701 to each machine in the
nbu setup.
Whats happening now though is drives just keep going down on the
media servers and backups are not working. I have ITC enabled so
each media server needs to lock 2 drives.
I have looked the bptm logs and cant see anything jumping out apart
from many request medias of different tape ids. I have looked in
/usr/openv/volmgr/debug/ltid/ and the logs in their show
successfully on communicating shared drive info to the master.
Therefore i am now stuck and have no idea whats going wrong :(
Anyone any advice/pointers? Is ether anything specific i should be
looking for in the logs or are there other important logs im not
checking.
Thanks
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Blaine Robison
Solaris Ceritfied System Administrator Solaris Certified Network
Administrator
Veritas Certified Professional
972-853-2459
214-578-5391
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