Well -- yes and no.

You get this interesting warning message that the drive is in use and the
process using it may fail. Then it marks the drive offline (well, actually,
online=no).

At the next breakpoint, the process using the drive will fail. Breakpoint
being new file to read or write. Now, if you're trying to kill a storage
pool backup to free the input tape because the output drive has died and no
longer responds . . . it won't happen. Because the process never GETS to the
breakpoint . . .

And how do I know this? I've run into this on both DLT and LTO drives, and I
REALLY want a 'cancel this process NOW' option; the database cleanup
shouldn't be any worse than what needs to be done because I've halted the
server to kill the process. (And if the server won't halt, I know where the
power switch is).

Tom Kauffman
NIBCO, Inc

> -----Original Message-----
> From: David Longo [mailto:David.Longo AT HEALTH-FIRST DOT ORG]
> Sent: Thursday, October 24, 2002 2:43 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Varying tape drives offline
>
>
> I think TSM won't let you vary a drive offline that is in use.
>
> David Longo
>
> >>> deehre01 AT LOUISVILLE DOT EDU 10/24/02 02:54PM >>>
> Anyone know what happens when you have processes/sessions running and
> using tape drives and vary the drives offline with the command:
>   update drive LIB DRIVE online=no
>
> Do the tapes get dismounted?  Processes/sessions terminate?  Data
> corrupted?
>
> 3590 drives in a 3494 library running TSM 5.1.1.6 on AIX 5.1 if it
> makes any difference.
>
> David Ehresman
>
>
> "MMS <health-first.org>" made the following
>  annotations on 10/24/2002 03:44:32 PM
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