And have in mind that someone can do it also from ANY MgSysSAN node !!
Thus it would be good to disable 'configure' method for smcN on Storage
Agent systems to prevent device become "Available" and be used from that
box's administrator causing grief to you at the server box.

Zlatko Krastev
IT Consultant




Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
Sent by:        "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
To:     ADSM-L AT VM.MARIST DOT EDU
cc:

Subject:        Device locking danger.

Please note, this may be common knowledge to some of you but I thought I'd
mention it again.

TSM Server can have problems if you are accessing a device like /dev/rmtX
or
a SCSI media changer
/dev/smc0 with tapeutil. You will see in the actlog the server is unable
to
access the device as you
have already initiated an exclusive lock on the device.

Therefore, if you are going to do tapeutil procedures or anything else
that
accesses/queries the devices,
do so when the server is inactive, and DO check it's health afterward and
the actlog for error messages.

We've seen this occur ourselves a couple of times now on TSM 4.2.2.0

Comments?

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