Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 29 Aug 2003 10:27:22 -0400 | From | "Robert L. Harris" <> | Subject | Re: ext2 -> ext3 on the fly? |
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Thus spake David T Hollis (dhollis@davehollis.com):
> Robert L. Harris wrote: > > >I have a number of servers which are currently mounting /usr as ext2. I > >have a means of doing an tune2fs -j on all of them remotely en mass but > >I'd rather not reboot them all to enable journaling on machines that are > >up and not having issues. I've tried to do a: > > > >mount -t ext3 -o remount /usr > > > >as well as just a mount -o remount after changing the fstab. > > > >on a test box but it just blows out a usage message. Is there a way to > >do this remount without a complete reboot that'll be transparant to > >users? > > > > > >If not, is it dangerous to tune2fs the filesystems, change the fstab and > >then leave the box up for 2-6 months and let them reboot through > >atrrition, upgrades, etc? > > > >Current kernel is 2.4.21-ac3, getting outages and upgrades is a rather > >long process involving regression testing, etc. > > > >Robert > > > >:wq! > >--------------------------------------------------------------------------- > >Robert L. Harris | GPG Key ID: E344DA3B > > @ x-hkp://pgp.mit.edu > >DISCLAIMER: > > These are MY OPINIONS ALONE. I speak for no-one else. > > > >Life is not a destination, it's a journey. > > Microsoft produces 15 car pileups on the highway. > > Don't stop traffic to stand and gawk at the tragedy. > > > > > I would be inclined to say it's not safe not from a code perspective but > an administration perspective. If you make a change as significant as > the file system format but don't test it until you reboot the box six > months from now (when you aren't thinking about how you changed it six > months ago) problems are likely to happen. Could be a simple typo or > something else, but it can definitely come back to bite you in the > backside. Granted, if you forgot to change your fstab to ext3, you'd > still boot and be fine running as ext2, you just never can tell what > could happen. Murphy always likes to visit on those occasions.
My thoughts exactly, just wanted someone else to say it so I can give it to management. Unfortunately I know their response will be that our package management system will ensure this won't happen which technically it shouldn't but I can think of a couple ways ti still could.
:wq! --------------------------------------------------------------------------- Robert L. Harris | GPG Key ID: E344DA3B @ x-hkp://pgp.mit.edu DISCLAIMER: These are MY OPINIONS ALONE. I speak for no-one else.
Life is not a destination, it's a journey. Microsoft produces 15 car pileups on the highway. Don't stop traffic to stand and gawk at the tragedy. [unhandled content-type:application/pgp-signature] | ![\](/images/icornerr.gif) |