Managing NFS and KRPC Kernel Configurations in HP-UX 11i v2 (Oct 2008)

Tested Values
Default: 0
Min: 0
Max: 40000
Note: If the value of nfs_nrnode tunable is set to default, the
value displayed is 0. However, the actual value is that of the
ncsize tunable. If the tunable is set to a value greater than
40000, an informational warning is issued at boot time.
This value is outside the tested limit.
Restrictions on Changing
The nfs_nrnode tunable is static. System reboot is required to activate a change made to this tunable.
Modifying the Value
In most cases, modifying the nfs_nrnode tunable directly is not recommended. Instead, HP
recommends tuning the ncsize tunable and allowing nfs_nrnode to default to the same size. If you are
able to accurately predict the number of files your NFS client will access and you want to control the
amount of system memory dedicated to the NFS mode cache, then you can increase or decrease the
size of the nfs_nrnode tunable.
For example, if your NFS client accesses only a few large files and you want to reclaim system
memory resources used by the NFS rnode cache, you can specify an nfs_nrnode size smaller than
ncsize. For more information about the ncsize parameter, see the ncsize(5) manpage.
2.1.9 nfs_posix_pathconf_chown
Description
The function calls pathconf (_PC_CHOWN_RESTRICTED) and fpathconf (_PC_CHOWN_RESTRICTED)
do not conform to POSIX standards when called over NFS filesystems. To make pathconf and
fpathconf conform to POSIX standards, when called over NFS mounts, enable the
nfs_posix_pathconf_chown tunable.
Tested Values
Default: 0 (Tunable is disabled)
Min: 0
Max: 1 (Tunable is enabled)
Restrictions on Changing
The nfs_posix_pathconf_chown tunable is dynamic. System reboot is not required to activate a
change made to this tunable. Changes made to the nfs_posix_pathconf_chown tunable are applicable
to all NFS mounted filesystems.
Modifying the Value
Enable this tunable to make pathconf and fpathconf conform to POSIX standards, when called over
NFS mounts.
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