Re: POWER OUTAGE - TAPE DRIVES

You could set this function up in a job stream and have it kicked off in SYSSTART then you will never forget it.

-------------- Original message from john pitman <jpitman@xxxxxxxxxxx>: --------------


> Giles,
> Obviously we can get more data on the DDS4 tapes, which is a big bonus -
> have done a sysgen TA / on one tape! As for time with normal backups, its
> down about 25% from old drive, with more data, so its well worth it.
>
> Worked out the fix for our problem - its not an error or failure - its
> normal. After a power off, the drive needs its compression and eject
> behaviour reset, so all I had to do was
> DEVCTRL enable,enable
> And old behaviour returned. A red faced service call cancellation has been
> made, but both I and the service people have learned something.
> The other devctrl parm is for Load - options are online, ofline, nochange.
> Currently when a tape ejects, the next one does not actually load and come
> to ready, so I will check to see if setting this one to online makes it load
> the next tape to ready status.
>
> Thanks for all your prompts...
> john
>
>
>
> -----Original Message-----
> From: Gilles Schipper [mailto:gilles@xxxxxxxxxx]
> Sent: Monday, 19 December 2005 1:25 AM
> To: john pitman
> Subject: Re: [HP3000-L] POWER OUTAGE - TAPE DRIVES
>
> John,
>
> Sorry, can't help you regarding curious hardware problem.
>
> But I'm curious.
>
> How are you finding the dat40 compared to dds3?
>
> How much of an improvement in elapsed time for backup?
>
> Cheers,
>
> Gilles
>
> At 09:28 PM 2005-12-15, you wrote:
>
> >Curiously follows on from earlier discussion......Last Sat we shutdown
> >system for a battery refresh in the UPS. Orderly shut, no problems.
> >We have been using a dds autoloader (dat40x6) for several month without
> >problem. After restart, drive came up ok. Mpe 7.5, N 4000 1 x 220Mhz, 1GB.
> >
> >Backup ran monday night, (proving config is ok) Tuesday morning drive has a
> >an attention light flashing, still showing tape 1, 'semi loaded'. You can
> >manually force a mag eject, or load of tape 2, but storing to ANY tape
> >results in attention light, failure to load next and 'semi loaded' message.
> >Support guys have taken it away, run it through on a system at their office
> >(NOT MPE!), no failures. Back here, fails the same immediately.
> >I have done a devctrl 777,enable to ensure that compression is on.
> >
> >Any suggestions please?
> >
> >jp
> >
> >* To join/leave the list, search archives, change list settings, *
> >* etc., please visit http://raven.utc.edu/archives/hp3000-l.html *
>
> ----------------------------------------------------------------------------
> ---------------------
> Gilles Schipper
> GSA Inc.
> HP System Administration Specialists
> 300 John Street, Box 87651 Thornhill, ON Canada L3T 7R4
> Voice: 905.889.3000 Fax: 905.889.3001
> email: gilles@xxxxxxxxxx web: http://www.gsainc.com
> ----------------------------------------------------------------------------
> ---------------------
>
> * To join/leave the list, search archives, change list settings, *
> * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *

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