[rescue] swap 36 gb SCA drive for 72 gb SCA

[Dave McGuire]

On December 13, 2019 6:59:25 PM adh at an.bradford.ma.us (Sandwich Maker) wrote:
> " From: Dave McGuire <mcguire at neurotica.com>
> "
> " On December 13, 2019 6:23:34 PM Skeezics Boondoggle <skeezicsb at gmail.com>
> " wrote:
> " > Hitachi 72gb SCA drive issues?  Here's a thought: pop it into another
> " > machine and check the block size.
> " >
> " > I found a batch of Hitachi 72gb DK-somethings on Ebay several years ago
> " > that were unexpectedly affordable, but none of them seemed to work (Sun
> " > E3500, to be a ZFS testbed).  Then I noticed the block size was wrong
--
> " > the firmware hinted that they'd been pulled from an EMC and had
520-byte
> " > blocks, which the Sun couldn't grok.  It's been ten years or so since
this
> " > all went down, so I can't recall the details, but I think I put them in
a
> " > spare NetApp shelf I happened to have laying around, wrote the latest
> " > NetApp-supplied firmware on 'em, then reformatted the lot with 512-byte
> " > blocks.  The Suns were happy with 'em after that.  (NetApp used to use
520
> " > byte "block checksum" format and had no trouble seeing them, and I was
> " > pleased to use a NetApp to blow away the EMC firmware. Feh!)
> " >
> " > That seems like a lot of work, now.  And you might not have a spare
NetApp
> " > around. But maybe a modern-ish PC with a SCSI card and a half-decent
BIOS
> " > utility?  It's a theory, anyway. :-)
> "   I've done it bunches of times on Suns using scsiutils, I think it was.
(It
> " has been awhile.)
>
> joerg schilling's 'sformat' perhaps?  iirc it can fix blocksize
> problems plus lots of other things.  now at
> https://sourceforge.net/projects/schilytools/files/sformat/
> i've used it, long ago, to good effect.
  Yes!  Yes that's the one.
                -Dave
-- Dave McGuire, AK4HZNew Kensington, PA