It was good to hear from Dave Cherkus that LSM was solid - his reply is
below.
There have been quite a few questions about how to set up a news spool. I
now know that that a large LSM volume provides good performance when the
machine is running and withstands plenty of crashing.
As Dave suggested, I did try pushing the halt button, but the machine was
too hung for that to work. (there have been other posts questioning the
speed of fsck - I know now that it is pretty good, about 10-15 minutes
for a 7 disk, 30gb volume)
The hang finally became less intermittent, within a few minutes of the
"system ready." At that point hardware tests were possible.
Performed the following obvious tests:
Reseated processor and memory cards. Still hung soon after "system ready"
Swapped processor 0 and 1 with one another and the hang changed into a
machine check.
Pulled processor 1 (the original 0) and left the machine running. DEC
brought over a new card and things now look OK.
Sorry taking so long (month) with the summary, but didn't have any solid
information until today.
For the same reason I couldn't call in Field Service for a problem which
couldn't be demonstrated to them (solid hang = no console indications, no
dumps, no tangible trace)
John Nebel
|>
|>
|> A 2100 running DU 3.2c and with a 7 x RZ29B stripe set (UFS on LSM) is
|> dedicated to innd with some netscape usage for x-terminals. Every few
|> days it hangs and will not respond to the console and must be manually
|> reset.
|>
|> The stripe set has over 2,000,000 files at this time.
|>
|> Formerly with two concatenated volumes and the same number of disks the
|> machine was pretty stable.
|>
|> Are their any known LSM or UFS bugs which will cause this problem?
|>
|> John Nebel
|>
No.
Have you tried to force a dump (hit the 'halt' button on the
front panel and then type 'crash')?
--
Dave Cherkus ----- UniMaster, Inc. ----- Contract Software Development
Specialties: UNIX TCP/IP X OSF/1 AlphaAXP AIX RS/6000 Performance ISDN
Email: cherkus_at_UniMaster.COM Tel: (603) 888-8308 Fax: (603) 888-4598
The Internet runs on its programmers, and programmers run on coffee!!!
Received on Fri Sep 20 1996 - 01:34:30 NZST