[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[FYI] CPRM on hard drives - IBM takes a spin
- To: debate@fitug.de
- Subject: [FYI] CPRM on hard drives - IBM takes a spin
- From: "Axel H Horns" <horns@ipjur.com>
- Date: Mon, 25 Dec 2000 20:16:38 +0100
- Comment: This message comes from the debate mailing list.
- Comments: Sender has elected to use 8-bit data in this message. If problems arise, refer to postmaster at sender's site.
- Organization: NONE
- Sender: owner-debate@fitug.de
http://www.theregister.co.uk/content/2/15684.html
---------------------------- CUT ----------------------------
CPRM on hard drives - IBM takes a spin
By: Andrew Orlowski in San Francisco
Posted: 24/12/2000 at 11:08 GMT
[...]
So how mandatory are these specifications? Dave Anderson of the
Object Based Storage Device group - he's also Seagate's storage
architect, but was speaking to us with his OBSD hat on - points out
that not all of the SCSI command set has been implemented. Even where
the commands have obvious benefits. It's a good point, but it's also
worth remembering that the SCSI design philosophy (do more) differs
from ATA mores (keep it simple) with the consequence that the ATA
spec is much more closely adhered to by manufacturers. It's a far
simpler spec, and being a mass market, doesn't tolerate wibbles.
CPRM's backers point out that it's an optional mechanism, and needs
to be turned on explicitly: for example a "compliant" CPRM drive may
yet be programmed to reject calls by compliant applications to write
secure media to disk.
The T.13 committee next meets in Irvine in February. It's already
seen three drafts of CPRM, which may give opponents of the scheme
hope that it can be delayed further. Equally, we suspect, CPRM's
backers may hope that the pre-Xmas furore will be forgotten as we
nurse new century hangovers in just over a week. But CPRM in ATA
poses short-term problems for several classes of current software and
IT practices, long-term threats to accepted consumer free use
practice and to basic computer science principles such as file system
abstraction, and could particularly divisive for free software in
particular - as Richard Stallman has pointed out. In short, it has
the potential to make the Clipper Chip saga look like a pre-show warm-
up, and we wouldn't bet on this story going away anytime soon. As the
Grinch discovered: "Oh, the noise! That's one thing he hated! The
NOISE! ®
---------------------------- CUT ----------------------------