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From: Ami Fischman <fischman@zion.bpnetworks.com>
To: linux-lvm@sistina.com
Subject: [linux-lvm] read-only media in a LVM?
Date: Mon May 27 18:30:02 2002	[thread overview]
Message-ID: <81y9e5novm.fsf@zion.bpnetworks.com> (raw)

Hi there,
I am wondering whether it is possible to have a read-only fs (CDROM, image,
etc) as part of an LVM-managed volume.  I see references to COW
(copy-on-write, I'm hoping :)) in the kernel drivers/md/ files, but it's not
at all clear to me whether or not the current drivers can be used to
implement a "translucent" or "inheriting" file system (one where a base fs
is given, on r-o media, and changes to it get recorded on another device,
presumabely a r-w fs).  Please let me know whether this is currently
possible, being planned for the future, or if I'm making no sense above &
you want me to clarify :).  For a not-quite-mature example of what I'm
talking about, see translucency.sf.net.

Thanks,
-- 
  Ami Fischman, Ph.D.
  fischman@bpnetworks.com
  http://www.bpnetworks.com/

             reply	other threads:[~2002-05-27 18:30 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-05-27 18:30 Ami Fischman [this message]
2002-05-28  3:40 ` [linux-lvm] read-only media in a LVM? Joe Thornber
2002-05-28  3:44 ` Joe Thornber
  -- strict thread matches above, loose matches on Subject: below --
2003-06-16  8:35 Sean P. Kane
2003-06-16  8:52 ` Joe Thornber
2003-06-23 12:51 Sean P. Kane
2003-06-23 16:23 ` Wolfgang Weisselberg
2003-06-23 17:13 Sean P. Kane
2003-06-23 17:41 ` Kevin P. Fleming
2003-06-23 18:54   ` Sean P. Kane
2003-06-23 19:35     ` Wolfgang Weisselberg
2003-06-23 20:10     ` Kevin P. Fleming
2003-06-24 11:27 Sean P. Kane
2003-06-24 18:49 Sean P. Kane

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