Christo is right however I think the answer you are looking for is 64k and 
ranges from 4K to 128K.  Your best bet is to confirm with the OS and 
Applications that you are backing up the block size that they write.  

________________________________

From: Legato NetWorker discussion on behalf of Christo Papadoulis
Sent: Wed 5/10/2006 10:37 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] disaster recovery



Hello Patricia,

Media Blocksize = 0
means you are using a divice whith variable block size, like LTO.

-Christo

> I can see using the performance tuning guide for your own 'home'
> enviroment but how much are you really going to be able to do at an
> offsite enviroment with all different flavors of equipment. Plus I'm no
> networking guru, which is what you have to be these days in order to have
> things go as smooth as possible. I come from a cobal,datatrieve, vms
> background when life was simple. I'd almost consider moving my networker
> server to a linux box after some of the comments. That block size error
> really messed me up last time.  Okay I did  mt -f \\.\tape1 status. This
> is what I got. What is my block size?
> Media Capacity  = 101.16GByte
>  Media Remaining = 48.26GByte
>  Media Blocksize = 0
>  Media Partition Count = 0
>  Media is not write protected
>  default blocksize = 65536
>  maximum blocksize = 131072
>  minimum blocksize = 4
>  MaximumPartitionCount = 0
>  Partition = 0
>  Logical block position = 3397737
>  EOTWarningZoneSize = 0
>  Error Correction Enabled
>
>
>
> Patricia Neal
> Production Support Specialist
> C.S.E.A.
>
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