Date: Mon, 29 Jan 2001 10:29:18 -0800 (PST) From: Matthew Jacob <mjacob@feral.com> To: Eric Lee Green <eric@estinc.com> Cc: freebsd-scsi@FreeBSD.ORG Subject: Re: Persistent block size? Message-ID: <Pine.LNX.4.21.0101291025430.21978-100000@zeppo.feral.com> In-Reply-To: <Pine.LNX.4.21.0101291109560.27133-100000@h23.estsatnet>
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On Mon, 29 Jan 2001, Eric Lee Green wrote:
> Trying to figure this one out. 'mt -f /dev/sa0.ctl' does not give the
> expected result ('mt' carps that it can't do it),
You have to be a bit more prescise than 'mt carps'.
> but reading the source,
> it looks like it should work. Anybody know whether it's 'mt' that's
> busted, 'sa.c', or simply a misguided notion in my head that the .ctl
> device is used to set persistent parameters (i.e., parameters that last
> longer than a session)?
Hmm??? If a tape hasn't been mounted yet, i.e. read or accessed, it's quite
possible that paramaters aren't known, are they?
The purpose of the .ctl device is mostly to be able to access the device when
somebody has the regular device open. The man page may need updating.
What do you mean by 'persistent' parameters? Held across multiple mount
sessions, or permanent across reboots?
> At the moment I'm just saying "%#@! it", since my storage manager resets
> the block size anyhow within a session (so non-persistence doesn't affect
> my backup software anyhow)... but that doesn't solve the problem of me
> being curious :-}.
Did you unmount the tape? That will probably clear things.
Sounds like an RFE is in the works here. Jeez, between you and Jean-Francois,
it looks like I'll really have to fix things I've been putting off.
-matt
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