"Bruce Arden" writes:
I have just had to reboot our filer for the second time in about 3 months. Both times the reboot failed with the error:
A CIFS I/O operation may be hung. Shutdown the system using halt
-d and report this incident to NetApp.
But I don't want to do a "halt -d". This causes a core dump which means that the filer may be down for about 10 mins. Is there a way of forcing a halt without using the -d switch (halt on its own just gives the CIFS error message again). I'm currently running 5.3.1D5.
- Bruce
PS The problem that caused me to reboot was that I was getting the error "Cannot find logon server" from PCs trying to connect to the filer. The reboot fixed this. Any ideas?
A suggestion which won't solve your problems, but may help the boot time: move savecore to the end of /etc/rc; it speeds up availability after a boot at the potential expense of corrupting your coredump.
PS: I have seen the ``can't halt because filer is wedged on CIFS users'' problem on older 5.x releases (can't remember exact numbers), but I think we've been OK since 5.3 (now running combination of 5.3D19 and 5.3.2D4, with the latter on our more loaded systems). I know this contradicts your experience (since you're running 5.3.1D5), but you never know; 5.3.2Dx may have fixed something related to this. :-/
Luke Mewburn wrote:
...
But I don't want to do a "halt -d". This causes a core dump which means that the filer may be down for about 10 mins. Is there a way of forcing a halt without using the -d switch (halt on its own just gives the CIFS error message again). I'm currently running 5.3.1D5.
...
A suggestion which won't solve your problems, but may help the boot time: move savecore to the end of /etc/rc; it speeds up availability after a boot at the potential expense of corrupting your coredump.
My problem isn't with the time to do the savecore on reboot. This is relatively fast. But the generation of the coredump during the shutdown can take 10 mins. This is what I want to avoid.
Could I safely start the "halt -d" and then push the reset button?
Bruce
-- Bruce Arden arden@nortel.com Nortel, London Rd, Harlow, England +44 1279 40 2877
On Tue, 12 Oct 1999, Bruce Arden wrote:
Could I safely start the "halt -d" and then push the reset button?
Can you unshare everything wait slightly over 10 seconds and then power the filer off. I would say just power it off, but I don't know how much trust you place in the NVRAM.
Tom