[4838] in linux-scsi channel archive
2K sectors
daemon@ATHENA.MIT.EDU (William Brioschi)
Thu Oct 8 05:29:08 1998
From: capo@writeme.com (William Brioschi)
To: linux-scsi@vger.rutgers.edu (Linux SCSI mailing list)
Date: Thu, 8 Oct 1998 10:18:26 +0200 (CEST)
I have a 640M magneto-optical drive which uses 2K blocks.
Of course, Linux (2.0.29) complains about the unsupported sector size.
I _have_ to use it, mainly for backup purposes. Performance is not an issue:
I would be happy with a 100K/sec.
I think there are three possibilities to be able to access a cartdridge:
1) make Linux scsi disk and low level drivers digest the big sectors; this is
probably not a very good idea, unless it's already been done in a newer
kernel... has it?
2) make the drive understand I need 1K sectors; the SCSI-HOWTO says something
about the MODE SELECT command, how can I send it? will it work? will I have
to reformat the cartdridges (which come preformatted at low level with a 2K
sector)? how will I lo level format a cartdridge?
3) use the device in raw, sequential mode (through tar or something like that),
probably using the SCSI generic driver; I haven't tried this yet, is it
possible? should I do something particular or can I simply do a
"tar cf /dev/sga"?
Or, is there a simple solution I am not able to see?
Thanks in advance.
Ciao, William
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