Randy Ramsdell wrote:
Robert Huff wrote:
Randy Ramsdell writes:
> What is the value of background_fsck in /etc/rc.conf ?
> This isn't set. Was is supposed to be? So far, I have only
installed applications we need. And everything seem fine except
the reboot issue.
I'm going to jump in here.
Based on what you've said, it sounds like:
the system was running
there was power outage, the system did not have a UPS
when the system rebooted, fsck complained but nothing was done
about the errors
Let me clarify. All our servers are on UPSes, however the power outage
outlasted the UPSes. That is why I stated prolonged power outage.
Fsck did complain, but everything was fixed as I sat there and dealt
with it. We do not want to deal with it in an offsite location and
that is why this thread.
IF THAT'S TRUE ...
... then the "seems" in your description is applicable,
and should be a red flag. Get someone to the system, reboot it
into single user mode, and
run (and re-run) fsck until it runs without error. (Answer 'y' to
all prompts.) This should be done whenever the file system is not
shutdown cleanly.
The filesystem is fine. Our set up just does not recover gracefully on
hard reboots.
(And consider a UPS, even it it only keeps the system alive for
the few minutes necessary for a clean shutdown.)
Is a dirty file system causing the reboots?
No. a power prolonged power failure caused the last shutdown.
Possibly; wiser
heads than mine would have to lay out scearios. But it may also be
responsible for other damage, more subtle but equally unpleasant. A
fix is available. Use it.
I understand this will not be easy, and I sympathize. Balance
that pain against the small but non-trivial chance to catastrophic
data loss, and choose wisely.
Robert Huff
Thanks for the reply.
I think I will just set the rc.conf variable to answer "Y" to fsck
questions unless there is a better way.
A side note, this system has been hard shutdown two times and each
time required intervention. We also use several Linux system (
reiserfs and ext3 ) and raely do I have to interact with the systems
on reboot. There is a differnce and I am in the fisrt stages trying to
understand this.
PS. I am confused about why so many people are replying to the list
and my personal e-mail. This one was sent to me only. Others were sent
to me and the list. Actually, every other reply. Is this normal for
the list as I am new as of today?
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Aloha,
If the power outages are prolonged and outlast the UPS you can parallel
the small battery in the UPS with a 100 amp hour stationary battery if
you have the room. We can get 9 hours on a stationery battery for our
servers if we lose power here in Hawaii. (which just happened this week
during a winter storm.)
~Al Plant - Honolulu, Hawaii - Phone: 808-284-2740
+ http://hawaiidakine.com + http://freebsdinfo.org + [EMAIL PROTECTED] +
+ http://aloha50.net - Supporting - FreeBSD 6.* - 7.* +
"All that's really worth doing is what we do for others."- Lewis Carrol
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