We've also had drives marked as completely unavailable on occasion when the
server cannot get around such a lock. Something else to watch out for. q
drive f=d to
check the status.

> -----Original Message-----
> From: Zlatko Krastev/ACIT [SMTP:acit AT ATTGLOBAL DOT NET]
> Sent: Tuesday, June 25, 2002 7:37 PM
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      Re: Device locking danger.
>
> 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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