dbc_max_pct and bdf, ls

[Rene Mendez_4]

OS. Hpux 11.11
Disk EVA 4000, secure path, pvlink

I configure bdc_max_pct for 15% to 12% this parameter afect bdf command.

bdf waiting ten minutes and no show output.

Regards
Rene

[James R. Ferguson]

Hi Rene:

While you don't indicate how much physical memory you have, 15% used for a buffer cache will still not cause this behavior. A 'sync()' is automatically done when 'bdf' runs, but the delay in flushing modified data is not this vast.

Since your post's subject mentinos 'ls' too, I would suspect that you have a stale NFS handle or (equally bad) have mounted a CDROM using the old 'pfs_mount'. You are probably looking at a reboot.

I would also examine '/var/adm/syslog/syslog.log' for any evidence of anomolies.

Regards!

...JRF...

[A. Clay Stephenson]

As mentioned this indicates a problem with NFS or possibly a failing/failed disk.

You may experience some delays on an extremely busy (i/o wise) system (essentially unrelated to the size of the buffer cache) but these delays are on the order of a few tens of seconds.

[Geoff Wild]

Changing dbc_max_pct from 15 to 12 won't affect bdf.

SOunds like a NFS issue.

tail -100 /var/adm/syslog/syslog.log

Rgds...Geoff

[Rene Mendez_4]

Thanks a lot