Seems to be a hardware issue. Another tape drive, with the exact same 
settings, is reading the tape with no issues, and my recovery is 
proceeding properly.

So I got all worried and excited for nothing, apparently ...

Move along, nothing to see here .. LOL

-- 
Michael Leone
Network Administrator, ISM
Philadelphia Housing Authority
2500 Jackson St
Philadelphia, PA 19145
Tel:  215-684-4180
Cell: 215-252-0143
<mailto:michael.leone AT pha.phila DOT gov>


EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU> wrote on 
09/05/2012 11:54:20 AM:

> From: Michael Leone <Michael.Leone AT PHA.PHILA DOT GOV>
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU, 
> Date: 09/05/2012 11:54 AM
> Subject: Re: [Networker] Block size wrong
> Sent by: EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>
> 
> > Here's a weird one. I am attempting a D/R recovery of a Win2008 R2 
> client, 
> > from a tape made over this past weekend. But when it goes to run, I am 

> > getting:
> > 
> > Block size is 32768 bytes not 131072 bytes. Verify the device 
> > configuration. Tape positioning by record is disabled.
> > 
> > I have no idea why. This is the same server, library, and tape that 
was 
> in 
> > use this past weekend, when the backup created normally. And I was on 
> > vacation for a couple days, so I certainly didn't change any settings 
> > since the backup on Sunday. And my boss says he didn't do it (he 
> wouldn't 
> > know how; I'm not sure I know how ..)
> > 
> > Any thoughts about why it thinks the blocksize is not what it wants? 
And 
> 
> > more importantly, how to fix it, so the recovery finishes? Searching 
> > powerlink is not finding a quick solution (probably my searching at 
> fault)
> 
> More info: these are fiber connected LTO-4 drives. The properties of the 

> drive where the tape is loaded (all the drives, it seems) at set to 
> "handler default" in the properties, under "device block size".
> 
> The volume does indeed say "block size 128K".
> 
> This is the first time I've seen this. I've never had to set block size 
> per drive; I just let it use the default. Do I need to change the drive 
> block size, in order for this to work? And do I leave it changed, or set 

> it back to "handler default" after the recovery is done?