HP CIFS Client A.01.09 Administrator's Guide, August 2003

Configuration File
Configuration Variables
Chapter 7 89
absolute timeout for NFS requests. A
value of 50 (5 seconds) avoids
frequent retries of already running
(slow) requests and ensures a total
timeout of about 2 minutes. This
should be sufficient even for the
slowest devices andlinks.If you usea
jukebox, it may also be necessary to
increase requestTimeout.
nfsRetransmit This integer variable defines the
number of retries the kernelattempts
when HP CIFS Client does not reply
in time. The timeout starts with
nfsTimeout and is doubled on each
retry. Retransmissions should not be
necessary, because HP CIFS Client
should not lose any requests.
However, if your system's NFS client
puts high loads on NFS servers and
has small maximum socket buffer
sizes, requests can get lost due to
buffer overflows. A value of 5 (which
is also the default) should be a good
choice. You may want to experiment
with nfsTimeout to get the optimum
performance even with frequent
buffer overflows.
nfsAttributeCaching
A boolean variable that can enable
file-attribute caching by NFS,
effectively overriding the CIFS
client’s attribute cache). This
improves performance of certain
types of operations (such as creating
tar(1) archives of large numbers of
files residing on mounted CIFS
filesystems), by reducing the number
of get attribute calls sent over the
network. The deault setting is no.