Nicole Harrington wrote:
  I have several systems that are used as squid
caching servers. I have some systems that use SCSI
disks and some  that use SATA disks. They are
identical in everyway except for the sata vs SCSI
 At random times, the sata based systems seem to be
freezing. You can ping them and they respond, but you
cannot log in. Nor are any logs processed during that
 I figure it mist be something to do with the disks,
but I am not sure how to solve it. There seems to be
little rhyme or reason. It does not happen necessarily
during busy times. It can happen in the middle of the

 Any pointers in how to track down the cause would be
much appreciated.

 Tyan S2881 Motherboard - 4gigs mem
 Using 4 SATA (or scsi) drives
 FreeBSD 6.2-STABLE.

Hi Nicole,

I had once experienced the same problem of system lockups in my FreeBSD-6.x servers running Squid. Most of them used SATA disks.

I could ping the servers but could not SSH into them. It seemed as tcp connections had stopped in the servers.

However, my problem was caused by high mbufs usage. What do you get from the following commands?

netstat -mb
sysctl kern.ipc.nmbclusters

Try increasing your mbufs if in case they are too low.

But your problem might not be related to mbufs and sockets.

Thanking you...



_______________________________________________ mailing list
To unsubscribe, send any mail to "[EMAIL PROTECTED]"

_______________________________________________ mailing list
To unsubscribe, send any mail to "[EMAIL PROTECTED]"

Reply via email to