From: Gavin Kelman (gavin@metahusky.net)
Date: Wed Nov 20 2002 - 09:50:33 EST
We fixed the DoS with the following patches, as advised by sun suppprt:
108727-19 5.8: /kernel/fs/nfs and /kernel/fs/sparcv9/nfs patch
111197-02 5.8: /usr/lib/nfs/mountd patch
109783-02 5.8: /usr/lib/nfs/nfsd and /usr/lib/nfs/lockd patch
> Our V880 with Solaris 9 and the latest patch cluster installed, mounts
> our Solaris 8 file server. The Solaris 8 box is probably about 3 months
> behind the latest patch cluster (always on, planned maintenance is rare).
>
> /srsdata sits on a t3 attached to the solaris 8 box.
>
> The Solaris 9 box has been up and running for about 4 days now mounting
> /srsdata on the Solaris 8 box. Today, people on other machines (we have
> Irix, tru64, hp-ux, linux, solaris 7 & 8) complain that /srsdata is
> impossibly slow to write to. Reading is fine, writing is so slow, touching
> a file there takes about 45 seconds. The same is true if done locally on
> the fileserver itself, avoiding NFS.
>
> I spent a good 2 hours watching NFSOPS, 800-1000 at this time of day,
> totally normal. I checked syslog, dmesg, and vxdiskadm for errors on failed
> disks or similar, and nothing seemed amiss. In desperation, I unmounted
> /srsdata from the solaris 9 box, and suddenly everything returns to normal.
> /srsdata becomes fast to write to again.
>
> What's going on? Why is our Solaris 9 box effectively Denial Of Servicing
> our Solaris 8 file server? I'm about to get in touch with Sun about this,
> but wondered if anyone had any ideas what's going on....
>
> Cheers,
> Gavin.
>
> --
> Gavin Kelman Phone : 07967 360 822
> Systems Administrator Email : gavin@metahusky.net
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-- Gavin Kelman Phone : 07967 360 822 Systems Administrator Email : gavin@metahusky.net _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers
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