[prev in list] [next in list] [prev in thread] [next in thread] 

List:       linux-390
Subject:    Re: Suse SLES 11 / reiserfs / readonly problem
From:       Leland Lucius <llucius () homerow ! net>
Date:       2010-08-25 17:40:08
Message-ID: AANLkTimXh6P9t==woSbx8-RcH9DGKQK2F93MxHf=WGuB () mail ! gmail ! com
[Download RAW message or body]

Wouldn't that be a good candidate for LVM snapshots?  (Sorry, if that's not
germane to the subject...I haven't followed the thread until now.)



On Wed, Aug 25, 2010 at 12:03 PM, Christian Paro
<christian.paro@gmail.com>wrote:

> Not quite what I meant.
>
> I was thinking of situations where the original system would be temporarily
> shut down during the cloning or backup operation. In this case, the "owner"
> would access the file system read-write, but it'd be safer for the "cloner"
> to only have read-only access to those disks. They would not, however, be
> accessing these file systems at the same time.
>
> On Wed, Aug 25, 2010 at 12:34 PM, Edmund R. MacKenty <
> Ed.MacKenty@rocketsoftware.com> wrote:
>
> > On Wednesday, August 25, 2010 12:21:50 pm Mark Post wrote:
> > > This would be a very dangerous practice, and one I always tell people
> to
> > > never use.  If a file system is going to be shared between Linux
> systems,
> > > it needs to be mounted read-only by all systems, including the "owner"
> of
> > > it.
> >
> > Thanks Mark!  I was writing a similar reply when yours arrived.  Having a
> > read-write mount to a shared Linux filesystem is just asking for it to be
> > corrupted, because of multiple caches being unaware of each other.
> > Please do not do that!
> >        - MacK.
> > -----
> > Edmund R. MacKenty
> > Software Architect
> > Rocket Software
> > 275 Grove Street  -  Newton, MA 02466-2272  -  USA
> > Tel: +1.617.614.4321
> > Email: mack@rs.com
> > Web: www.rocketsoftware.com
> >
> > ----------------------------------------------------------------------
> > For LINUX-390 subscribe / signoff / archive access instructions,
> > send email to LISTSERV@VM.MARIST.EDU with the message: INFO LINUX-390 or
> > visit
> > http://www.marist.edu/htbin/wlvindex?LINUX-390
> > ----------------------------------------------------------------------
> > For more information on Linux on System z, visit
> > http://wiki.linuxvm.org/
> >
>
> ----------------------------------------------------------------------
> For LINUX-390 subscribe / signoff / archive access instructions,
> send email to LISTSERV@VM.MARIST.EDU with the message: INFO LINUX-390 or
> visit
> http://www.marist.edu/htbin/wlvindex?LINUX-390
> ----------------------------------------------------------------------
> For more information on Linux on System z, visit
> http://wiki.linuxvm.org/
>

----------------------------------------------------------------------
For LINUX-390 subscribe / signoff / archive access instructions,
send email to LISTSERV@VM.MARIST.EDU with the message: INFO LINUX-390 or visit
http://www.marist.edu/htbin/wlvindex?LINUX-390
----------------------------------------------------------------------
For more information on Linux on System z, visit
http://wiki.linuxvm.org/
[prev in list] [next in list] [prev in thread] [next in thread]