Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 27 Jul 2001 06:41:14 -0700
From:      Dima Dorfman <dima@unixfreak.org>
To:        David Gilbert <dgilbert@velocet.ca>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: Wanted: swapped backed disk on a diskless machine 
Message-ID:  <20010727134119.F11AE3E31@bazooka.unixfreak.org>
In-Reply-To: <15201.24866.326855.142183@trooper.velocet.net>; from dgilbert@velocet.ca on "Fri, 27 Jul 2001 08:40:02 -0400"

next in thread | previous in thread | raw e-mail | index | archive | help
David Gilbert <dgilbert@velocet.ca> writes:
> I have somewhat of an interesting problem:  I have applications that
> write arbitrarily large files (as much as 6 gig) and I find that the
> best performance for these disks is to use something like MFS.
> 
> However, mfs has a maximum size of 512M.
> 
> md appears to have a very small maximum size and only resides in core

Only the `malloc' md type (as much as the name suggests otherwise, it
can be configured not to use malloc as a backing store) has the limits
I think you're referring to.  Its `swap' backing may be what you need.
However, support for that is only in -current, and there are no plans
to MFC it since it isn't backwards-compatible with the md that's in
-stable.  That said, I have patches that backport -current's md to
-stable; if anybody wants them, feel free to ask.

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20010727134119.F11AE3E31>