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Kctune Tunable Name
Range
Default
value
Units
ONCplus
Version
nfs3_nra
0 to MAXINT
4
Requests
B.11.31_LR
nfs3_pathconf_disable_cache
0 or 1
0
Boolean
B.11.31_LR
nfs4_async_clusters
0 to MAXINT
1
Requests
B.11.31_LR
nfs4_bsize
4096 to MAXINT
32768
Bytes
B.11.31_LR
(The value must be a
power of 2.)
nfs4_cots_timeo
10 to MAXINT
600
Tenths of a
second
B.11.31_LR
nfs4_do_symlink_cache
0 or 1
1
Boolean
B.11.31_LR
nfs4_lookup_neg_cache
0 or 1
1
Boolean
B.11.31_LR
nfs4_max_threads
0 to nkthreads/5
8
Threads
B.11.31_LR
nfs4_max_transfer_size
4096 to MAXINT
1048576
Bytes
B.11.31_LR
nfs4_max_transfer_size_cots
4096 to MAXINT
1048576
Bytes
B.11.31_LR
nfs4_nra
0 to MAXINT
4
Requests
B.11.31_LR
nfs4_pathconf_disable_cache
0 or 1
0
Boolean
B.11.31_LR
2.1.1 nfs_async_timeout
Description
The nfs_async_timeout tunable controls the duration of time that threads executing asynchronous I/O
requests sleep before exiting. If no new requests arrive before the timer expires, the thread wakes up
and exits. If a request arrives, the thread wakes up to execute requests then goes back to sleep.
Tested Values
Default: 6000 Milliseconds (6 Seconds)
Min: 0
Max: 360000 Milliseconds (6 Minutes)
Note: If the tunable is set to a value greater than 360000,
an informational warning is issued at runtime. Any value
greater than 360000 is outside the tested limits.