Re: [Networker] Having trouble reading DLT tape on SDLT220 drive

Paul,

I haven't played with this since my Tech Support days, but it might
still work.

You used to be able to set the following variable:

NSR_DEV_BLOCK_SIZE_MEDIATYPE=XXX  (size is in number of kbytes)
                                  (media type is device type in NetWorker)
example:

NSR_DEV_BLOCK_SIZE_SDLT=256   (pick device type you configured in NetWorker)

The basic idea is that you set this variable in Windows 2000.  You then
stop/start the services.  You then would do the scanner operation.

The big thing is all of your SDLT devices are going to be overridden to
the block size you choose.  Hence, you don't want to be doing backups
or anything like that because the devices would be using a 256 block size.
When you switched back to 128 you wouldn't be able to read the new tapes
without playing with the block size again.

Thanks,

Carston

-----Original Message-----
From: Legato NetWorker discussion
[mailto:NETWORKER AT LISTMAIL.TEMPLE DOT EDU]On Behalf Of Paul Crossman
Sent: Thursday, March 20, 2003 8:35 AM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: [Networker] Having trouble reading DLT tape on SDLT220 drive


I'm trying to rebuild media and client indexes from 3 DLT tapes from my
previous backup silo.

The SDLT tapes write at 128k block size
The DLT tapes wrote at 256k block size

The backup server is Windows 2000 running Networker 6.2.

When I run scanner -m \\.\Tape0, I get a tape read errors after the
volume label is read, and I've got an empty volume listed in my volume
database.

Any thoughts?

Paul C.

--
Paul Crossman @ Wildfire Communications, Inc.
Senior Unix Systems Administrator
Phone & Fax:  781-778-3517
Email:  pcrossma AT wildfire DOT com


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