I would bet your original backup server is not Win2k3 SP1.
Win2k SP1 has introduced a limit on the maximum block size.
If at your DR site you have Win2k3 SP1 I would suggest either to remove
SP1 or apply the emergency fix MS has provided to revert this
limitation.
This is described in MS KB907418.
Itzik 

-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
On Behalf Of Scalise, Kathleen (NSTS.JAX)
Sent: Monday, May 15, 2006 18:03
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] HELP - BRP

Davina:

Our library here is fibre attached and the drive at our BRP site is a
direct connect stand alone.

Kathleen Scalise
Asst. Vice President
Network Services and Technology Support
Merrill Lynch - Jacksonville, Florida
Phone:  904.218.5139
Fax:  904.218.5445
kathleen_scalise AT ml DOT com


-----Original Message-----
From: Davina Treiber [mailto:DavinaTreiber AT PeeVRo.co DOT uk]
Sent: Monday, May 15, 2006 10:18 AM
To: Legato NetWorker discussion; Scalise, Kathleen (NSTS.JAX)
Subject: Re: [Networker] HELP - BRP


Scalise, Kathleen (NSTS.JAX) wrote:
> The device block size in Networker Admin 'Configuration' tab for the 
> drive is "handler default".  Is there where I set it to 128K??
> 
> In the 'Volume' tape of the device it reflect 128K.  Below the Record 
> size = 131072 bytes = 128K?
> 
> Checking my main backup server that the tape was created on, it is the

> same.
> 

Kathleen,

The "More data is available" error messages definitely indicates a block

size mismatch, telling you that the blocksize of the data on the tape is

larger than you can read on your DR server.

If you have not changed the block size (by setting an environment 
variable on your main server), then NetWorker will be using its 
defaults, so you are looking slightly in the wrong place. The most 
likely explanation is the the hardware at your DR site cannot read data 
written with the NetWorker LTO-3 default blocksize due to a limitation 
of the driver for the HBA. I would guess that the HBA in use at your DR 
site is not the same as your main site, or is perhaps using a different 
driver or different servicepack.

To resolve this you will need to either change the HBA or change the 
driver on your DR site. Another approach is to reduce the block size on 
your main site to match the limitation on your DR site, however this 
does not help you to read this particular tape, and this approach could 
result in a performance degradation.
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