Managing NFS and KRPC Kernel Configurations in HP-UX 11i v3 (762807-002, June 2014)

2 Managing Kernel Tunables using Kctune
2.1 NFS Client Tunables
Table 2.1-1 lists the NFS client tunables. The last column specifies which ONCplus version first
introduced the tunable.
Table 2.1-1 NFS Client Tunables
Kctune Tunable Name
Range
Default
value
Units
ONCplus
Version
nfs_async_timeout
0 to MAXINT
6000
Milliseconds
B.11.31_LR
nfs_disable_rddir_cache
0 or 1
0
Boolean
B.11.31_LR
nfs_enable_write_behind
0 or 1
0
Boolean
B.11.31_LR
nfs_nacache
0 to MAXINT
0
Hash Queues
B.11.31_LR
nfs_nrnode
0 to MAXINT
0
Entries
B.11.31_LR
nfs_write_error_interval
0 to MAXINT
5
Seconds
B.11.31_LR
nfs_write_error_to_cons_only
0 or 1
0
Boolean
B.11.31_LR
nfs2_async_clusters
1 to MAXINT
1
Requests
B.11.31_LR
nfs2_bsize
8192 to MAXINT
(The value must be a
power of 2.)
8192
Bytes
B.11.31_LR
nfs2_cots_timeo
0 to MAXINT
600
Tenths of a
second
B.11.31_LR
nfs2_do_symlink_cache
0 or 1
1
Boolean
B.11.31_LR
nfs2_dynamic
0 or 1
1
Boolean
B.11.31_LR
nfs2_lookup_neg_cache
0 or 1
1
Boolean
B.11.31_LR
nfs2_max_threads
0 to nkthread/5
8
Threads
B.11.31_LR
nfs2_nra
0 to MAXINT
4
Requests
B.11.31_LR
nfs2_shrinkreaddir
0 or 1
0
Boolean
B.11.31_LR
nfs3_async_clusters
0 to MAXINT
1
Requests
B.11.31_LR
nfs3_bsize
4096 to MAXINT
(The value must be a
power of 2.)
32768
Bytes
B.11.31_LR
nfs3_cots_timeo
10 to MAXINT
600
Tenths of a
second
B.11.31_LR
nfs3_do_symlink_cache
0 or 1
1
Boolean
B.11.31_LR
nfs3_dynamic
0 or 1
0
Boolean
B.11.31_LR
nfs3_enable_async_directio_read
0 or 1
0
Boolean
B.11.31_08
nfs3_enable_async_directio_write
0 or 1
0
Boolean
B.11.31_08
nfs3_jukebox_delay
100 to MAXINT
1000
Seconds
B.11.31_LR
nfs3_lookup_neg_cache
0 or 1
1
Boolean
B.11.31_LR
nfs3_max_async_directio_requests
8 to 64
8
Boolean
B.11.31_08
nfs3_max_threads
0 to nkthread/5
8
Threads
B.11.31_LR
nfs3_max_transfer_size
4096 to MAXINT
1048576
Bytes
B.11.31_LR
nfs3_max_transfer_size_clts
4096 to MAXINT
32768
Bytes
B.11.31_LR
nfs3_max_transfer_size_cots
4096 to MAXINT
1048576
Bytes
B.11.31_LR