[Info-vax] Device numbering in a "Pizza Box"

[David J Dachtera]

Christoph Gartmann wrote:
> 
> Hello,
> 
> can someone enlighten me about the devices in a small storageworks rack
> (BA364)? I had to replace one of the drives. The old one was DKB200:, the
> new one appeard as DKB1500:. I removed the latter and replaced it with a
> different one just out of curiosity. This time the new drive didn't show up,
> so I exchanged the position with DKB300:, first by replacing the new drive
> with the one on DKB300:, then putting both disks in.
> 
> Now I realize that they both appear as DKB300:, that is, they only work
> if the other one is not present :-(
> 
> I did a "IO AUTOCONFIGURE" in SYSMAN after each change. But how do I convince
> this box or OpenVMS 7.3-2 that only one disk should be DKB300: and the other
> one something different?

Doesn't look like you got a reply here, so let me take a whack at it...

"Pizza box" can have multiple meanings. For example, to me it implies a
BA353 which accepts the -VA variants of the StorageWorks SBBs. In that
case, you'd have to make sure that the "brick" does not contain a disk
which is hard-strapped to a specific SCSI Id. (I've had to do that for
drives which do not accommodate the ID select / LED ribbon cable
connector.)

I cannot speak to other variations on a "pizza box" as I have never seen
or worked with them.

Dunno if this helps at all...

D.J.D.