At 12:07 PM 6/20/96 -0400, Vijay Gill wrote:
>
>Any ideas on when AFS will be available on irix 6.2?
Wish I knew. I'm expecting at least one R10000 MP box in the very near
future and am worried that I'll have to initially set it up with an AFS/NFS
translator. Incidently, Transarc isn't the only company I'm worried about:
drivers for our ATM NICs aren't yet available either for IRIX 6.2.
I'm very encouraged to see that the single processor and multiprocessor
versions of AFS 3.4a were both announced as GA today for the HPUX 10.0 and
IRIX 6.1 platforms. Given that IRIX 6.1 is a 64-bit operating system like
6.2 this gave me hope that the 6.2 release will arrive shortly and for both
single processor and multiprocessor system.
>Also if anyone is running AFS on irix 5.3, and has any comments, let me
>know.
Assuming you have the latest IRIX 5.3 kernel patches in place, my experience
has been that the released version of AFS 3.4a is very very solid. I have
found only one very small instability that is trivially worked around--which
has been reported to Transarc. It was so trivial that I told Transarc not
to bother with sending me an emergency fix.
Essentially the problem is that the pathconf() system call interacts with
the AFS code to set a kernel lock on multiprocessor systems that cannot be
freed. If anyone's interested I can give them the <5 line source code patch
to allow PGP 2.6.2 to run on MP SGI's running AFS 3.4a under IRIX 5.3.
When we first received our 4-processor Onyx about 2 years ago we would
hardly ever go more than a couple of days without a panic or hang. This was
true whether or not we were running AFS--patch 624 from SGI finally fixed
the problem that was biting us under IRIX 5.2 and 5.3. Now we routinely see
multi-week uptimes, and the reboots that we do see are controlled and
intentional on our part to add drivers, reconfigure kernel tuning variables,
apply patches, and so forth. Our AFS fileserver is a teeny-tiny little
RS/6000-220, but our users routinely enjoy doing 6-way parallel makes on the
4-processor Onyxes.
The GA version of IRIX 5.3 for single processor machines has been solid for
quite a while, and in fact we haven't bothered to replace beta AFS 3.4a code
on some of the single processor machines because they're so stable.
>thanks
Hope this helps,
--
Bill Nickless [EMAIL PROTECTED] +1 708 252 7390
PGP 2.6.2 Key fingerprint = 0E 0F 16 80 C5 B1 69 52 E1 44 1A A5 0E 1B 74 F7
http://www.mcs.anl.gov/people/nickless
