5.4 Server lockups

[David Proffitt]

Hello

I have a server running 5.4-RELEASE (its about 2 years old and was
running fine until a few days ago) =20

It runs ok for about 12 hours or so then locks up=20
It usually still responds to pings but connections to listening daemons
(ssh and http) fail

If I try to login at the console I either find the server frozen or I
can enter a username but then get no password prompt and have to resort
to a power cycle

I never see any hardware errors in the logs

I'm begining to suspect the failure is conincidental with disc access or
possibly with accessing one of two smbfs mounts but there's nothing to
support either possibility in the logs

To establish whether it could be a disk problem I've tried running
smartctl but the status always comes back OK although there are a lot of
ECC Fast corrected errors (though all the posts I've read suggest this
is not a concern)

I've moved the important functions to a backup server and will probably
rebuild (installing 6.1) but I'd like to know if it really is a hardware
problem?=20

Any thoughts appreciated

David=20


 sudo smartctl -l error /dev/da0s1
smartctl version 5.36 [i386-portbld-freebsd5.4] Copyright (C) 2002-6
Bruce Allen
Home page is http://smartmontools.sourceforge.net/


Error counter log:
           Errors Corrected by           Total   Correction
Gigabytes    Total
               ECC          rereads/    errors   algorithm
processed    uncorrected
           fast | delayed   rewrites  corrected  invocations   [10^9
bytes]  errors
read:   19211244        0         0  19211244   19211244      16995.827
0
write:         0        0         0         0          0      62375.119
0
verify:        0        0         0         0          0          0.000
0

Non-medium error count:       22
=20
=20



DAVID PROFFITT
SYSTEMS ADMINISTRATOR

200 GRAY'S INN ROAD
LONDON
WC1X 8XZ
UNITED KINGDOM
T +44 (0)20 7430 4705
F=20
E DAVID.PROFFITT at ITN.CO.UK
WWW.ITN.CO.UK
Please Note:

=20

Any views or opinions are solely those of the author and do not necessarily=
 represent=20
those of Independent Television News Limited unless specifically stated.=20
This email and any files attached are confidential and intended solely for =
the use of the individual
or entity to which they are addressed.=20
If you have received this email in error, please notify postmaster at itn.co.u=
k=20

Please note that to ensure regulatory compliance and for the protection of =
our clients and business,
we may monitor and read messages sent to and from our systems.

Thank You.