Provided by: nfstest_3.2-2_all 
NAME
nfstest_cache - NFS client side caching tests
SYNOPSIS
nfstest_cache --server <server> --client <client> [options]
DESCRIPTION
Verify consistency of attribute caching by varying acregmin, acregmax, acdirmin, acdirmax
and actimo. Verify consistency of data caching by varying acregmin, acregmax, acdirmin,
acdirmax and actimo.
Valid for any version of NFS.
OPTIONS
--version
show program's version number and exit
-h, --help
show this help message and exit
-f FILE, --file=FILE
File where options are specified besides the system wide file /etc/nfstest, user
wide file $HOME/.nfstest or in the current directory .nfstest file
NFS specific options:
-s SERVER, --server=SERVER
Server name or IP address
-e EXPORT, --export=EXPORT
Exported file system to mount [default: '/']
--nfsversion=NFSVERSION
NFS version, e.g., 3, 4, 4.1, etc. [default: 4.1]
-m MTPOINT, --mtpoint=MTPOINT
Mount point [default: '/mnt/t']
-p PORT, --port=PORT
NFS server port [default: 2049]
--proto=PROTO
NFS protocol name [default: 'tcp']
--sec=SEC
Security flavor [default: 'sys']
--nconnect=NCONNECT
Multiple TCP connections option [default: '1']
-o MTOPTS, --mtopts=MTOPTS
Mount options [default: 'hard,rsize=4096,wsize=4096']
--datadir=DATADIR
Data directory where files are created, directory is created on the mount point
[default: '']
Logging options:
-v VERBOSE, --verbose=VERBOSE
Verbose level for debug messages [default: 'opts|info|dbg1|dbg2|dbg3']
--tverbose=TVERBOSE
Verbose level for test messages [default: '1']
--createlog
Create log file
--rexeclog
Create rexec log files
--warnings
Display warnings
--tag=TAG
Informational tag, it is displayed as an INFO message [default: '']
--notty
Do not use terminal colors on output
--isatty
Use terminal colors on output -- useful when running with nohup
Packet trace options:
--createtraces
Create a packet trace for each test
--tbsize=TBSIZE
Capture buffer size for tcpdump [default: 192k]
--trcdelay=TRCDELAY
Seconds to delay before stopping packet trace [default: 2.0]
--keeptraces
Do not remove any trace files [default: remove trace files if no errors]
--rmtraces
Remove trace files [default: remove trace files if no errors]
-i INTERFACE, --interface=INTERFACE
Device interface [default: automatically selected]
File options:
--nfiles=NFILES
Number of files to create [default: 2]
--filesize=FILESIZE
File size to use for test files [default: 32]
--rsize=RSIZE
Read size to use when reading files [default: 4k]
--wsize=WSIZE
Write size to use when writing files [default: 4k]
--iodelay=IODELAY
Seconds to delay I/O operations [default: 0.1]
--offset-delta=OFFSET_DELTA
Read/Write offset delta [default: 4k]
Path options:
--sudo=SUDO
Full path of binary for sudo [default: '/usr/bin/sudo']
--kill=KILL
Full path of binary for kill [default: '/usr/bin/kill']
--nfsstat=NFSSTAT
Full path of binary for nfsstat [default: '/usr/sbin/nfsstat']
--tcpdump=TCPDUMP
Full path of binary for tcpdump [default: '/usr/sbin/tcpdump']
--iptables=IPTABLES
Full path of binary for iptables [default: '/usr/sbin/iptables']
--messages=MESSAGES
Full path of log messages file [default: '/var/log/messages']
--trcevents=TRCEVENTS
Full path of tracing events directory [default: '/sys/kernel/debug/tracing/events']
--trcpipe=TRCPIPE
Full path of trace pipe file [default: '/sys/kernel/debug/tracing/trace_pipe']
--tmpdir=TMPDIR
Temporary directory [default: '/tmp']
Debug options:
--nocleanup
Do not cleanup created files
--notimestamps
Do not display timestamps in debug messages
--bugmsgs=BUGMSGS
File containing test messages to mark as bugs if they failed
--nomount
Do not mount server and run the tests on local disk space
--basename=BASENAME
Base name for all files and logs [default: automatically generated]
--nfsdebug=NFSDEBUG
Set NFS kernel debug flags and save log messages [default: '']
--rpcdebug=RPCDEBUG
Set RPC kernel debug flags and save log messages [default: '']
--tracepoints=TRACEPOINTS
List of trace points modules to enable [default: '']
--nfsstats
Get NFS stats [default: 'False']
--pktdisp
Display main packets related to the given test
--nfserrors
Fail every NFS error found in the packet trace
--client-ipaddr=CLIENT_IPADDR
IP address of localhost
Reporting options:
--xunit-report
Generate xUnit compatible test report
--xunit-report-file=XUNIT_REPORT_FILE
Path to xout report file
Test options:
--runtest=RUNTEST
Comma separated list of tests to run, if list starts with a '^' then all tests are
run except the ones listed [default: 'all']
--client=CLIENT
Remote NFS client
--justbefore=JUSTBEFORE
Time in seconds to test a condition just before it is expected to come true
[default: 2]
--acmin=ACMIN
Comma separated values to use for acregmin/acdirmin/actimeo [default: 10]
--acmax=ACMAX
Comma separated values to use for acregmax/acdirmax, first value of acmin will be
used as acregmin/acdirmin [default: 20]
TESTS
acregmin_attr
Verify consistency of attribute caching by varying the
acregmin NFS option.
The cached information is assumed to be valid for attrtimeo
which starts at acregmin.
acregmax_attr
Verify consistency of attribute caching by varying the
acregmax NFS option.
The cached information is assumed to be valid for attrtimeo which
starts at acregmin. An attribute revalidation to the server
that shows no attribute change doubles attrtimeo up to acregmax.
An attribute revalidation to the server that shows a change has
occurred resets it to acregmin.
acdirmin_attr
Verify consistency of attribute caching by varying the
acdirmin NFS option.
The cached information is assumed to be valid for attrtimeo
which starts at acdirmin. Test that this is so.
acdirmax_attr
Verify consistency of attribute caching by varying the
acdirmax NFS option.
The cached information is assumed to be valid for attrtimeo which
starts at acdirmin. An attribute revalidation to the server
that shows no attribute change doubles attrtimeo up to acdirmax.
An attribute revalidation to the server that shows a change has
occurred resets it to acdirmin.
actimeo_attr
Verify consistency of attribute caching by varying the
actimeo NFS option.
The cached information is assumed to be valid for attrtimeo
which starts and ends at actimeo.
acregmin_data
Verify consistency of data caching by varying the
acregmin NFS option.
acregmax_data
Verify consistency of data caching by varying the
acregmax NFS option.
The cached information is assumed to be valid for attrtimeo which
starts at acregmin. An attribute revalidation to the server
that shows no attribute change doubles attrtimeo up to acregmax.
An attribute revalidation to the server that shows a change has
occurred resets it to acregmin.
acdirmin_data
Verify consistency of data caching by varying the
acdirmin NFS option.
The cached information is assumed to be valid for attrtimeo
which starts at acdirmin. Test that this is so.
acdirmax_data
Verify consistency of data caching by varying the
acdirmax NFS option.
The cached information is assumed to be valid for attrtimeo which
starts at acdirmin. An attribute revalidation to the server
that shows no attribute change doubles attrtimeo up to acdirmax.
An attribute revalidation to the server that shows a change has
occurred resets it to acdirmin.
actimeo_data
Verify consistency of data caching by varying the
actimeo NFS option.
The cached information is assumed to be valid for attrtimeo
which starts and ends at actimeo.
all
Run all tests: acregmin_attr, acregmax_attr, acdirmin_attr,
acdirmax_attr, actimeo_attr, acregmin_data, acregmax_data,
acdirmin_data, acdirmax_data, actimeo_data
EXAMPLES
Required options are --server and --client
$ nfstest_cache --server 192.168.0.11 --client 192.168.0.20
Testing with different values of --acmin and --acmax (this takes a long time)
$ nfstest_cache --server 192.168.0.11 --client 192.168.0.20 --acmin 10,20 --acmax
20,30,60,80
NOTES
The user id in the local host and the host specified by --client must have access to run
commands as root using the 'sudo' command without the need for a password.
The user id must be able to 'ssh' to remote host without the need for a password.
SEE ALSO
nfstest.test_util(3), nfstest_alloc(1), nfstest_delegation(1), nfstest_dio(1),
nfstest_fcmp(1), nfstest_file(1), nfstest_interop(1), nfstest_io(1), nfstest_lock(1),
nfstest_pkt(1), nfstest_pnfs(1), nfstest_posix(1), nfstest_rdma(1), nfstest_sparse(1),
nfstest_ssc(1), nfstest_xattr(1), nfstest_xid(1)
BUGS
No known bugs.
AUTHOR
Jorge Mora (mora@netapp.com)