Marc G. Fournier
scrappy at hub.org
Fri Feb 13 18:01:04 PST 2004
On Fri, 13 Feb 2004, Andrew Reilly wrote:
> On Thu, Feb 12, 2004 at 06:48:38PM -0800, Tom Arnold wrote:
> > On Fri, Feb 13, 2004 at 10:20:10AM +0800, Xin LI wrote:
> > > Personally I'd prefer the SoftUpdates approach, so I am more interested
> > > in what made you to think it doesn't fit your needs, performance?
> > > security features? or others?
> > Boot time. Large small-block filesystems take forever to come
> > up at bootime Forever being approx 10 minutes per filesystem
> > for the snapshot to occur, with 3 filesystems on the machine
> > it adds up.
> Why are your filsystems going down dirty? Are you crashing the
> system, or is your power supply dodgy? If it's the latter, then
> a UPS ought to sort out the problem.
I have problems with 4.9-STABLE where doing a 'reboot' with all file
systems mounted will result in it hanging while syncing disks ... the last
time I did it, I umounted *everything* except those reported as busy, so
that all I had left mounted was:
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/da0s1a 516062 191016 283762 40% /
/dev/da0s1e 1032142 19454 930118 2% /tmp
/dev/da0s1f 10322414 5805016 3691606 61% /usr
/dev/da0s1g 1032142 146584 802988 15% /var
/dev/da0s1h 119837208 90385742 19864490 82% /vm
procfs 4 4 0 100% /proc
and it hung, requiring a cold boot ... the higher the uptime, the better
chance it happens ...
I've gotten into the habit of umounting everything I can, and shutting
down all the processes, before rebooting to avoid the issue ... the
servers are remote, so a hang tends to mean waiting for someone to get to
that machine ...
Marc G. Fournier Hub.Org Networking Services (http://www.hub.org)
Email: scrappy at hub.org Yahoo!: yscrappy ICQ: 7615664
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