AT&T 3b2 vs SCSI2SD drive replacement
swiftgriggs at gmail.com
Wed Jun 1 17:51:18 CDT 2016
On Thu, 2 Jun 2016, pete wrote:
> AAT. 2048 bytes is the common CDROM standard, used by PCs and their
> ilk, whereas SGIs want 512-byte blocks on CDROMs.
Ah, quite right. Thanks, Pete.
> Some SGIs/IRIX versions (eg Indy and later, running IRIX 5.3 or later)
> will issue a command to make the CDROM switch to 512-byte blocks instead
> of their default 2048.
Huh... I didn't realize that. I remember using one of those Pioneer
slot-loading SCSI drives to load IRIX at some point and it still had the
jumper as the switching mechanism. I guess I just haven't seen SCSI CDROM
drives that didn't because I only order or fiddle with the ones that do.
> Most modern SCSI CDROMs honour that, but older ones may have jumpers or
> PCB links that need to be set.
Does anyone have such a beast and can share a model # ? If they are cheap
enough, I'd replace my current crapola 1X external "ace in the hole" CDROM
with it. My hang-up has always been the block size issue.
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