HP-UX Reference (11i v2 03/08) - 1M System Administration Commands N-Z (vol 4)

v
vxfsstat(1M) vxfsstat(1M)
NAME
vxfsstat - display VxFS file system statistics
SYNOPSIS
vxfsstat [-aCgsvxz][-e
columns][-c sample_count ][-t seconds] mount_point
vxfsstat [-abi][-c
sample_count ][-t seconds] mount_point
vxfsstat [-w outfile][
-c sample_count ][-t seconds] mount_point
vxfsstat -r infile [-aCgsvxz
][-e columns]
DESCRIPTION
vxfsstat is a statistical reporter to aid in performance tuning and determining performance anomalies.
vxfsstat gathers buffer cache, inode cache, DNLC (directory name lookup cache), per-CPU statistics,
per-file system statistics for local and cluster mounted file system, and global cluster file system counters.
The mount_point specifies any VxFS file system mount point. mount_point is used as an ioctl entry point
to access the statistics maintained by the VxFS kernel.
Options
vxfsstat recognizes the following options:
-a Displays absolute values.
-b Displays buffer cache statistics.
-c sample_count
Specifies the number of samples to take.
-C Displays per-CPU statistics.
-e columns Selects the number of column entries to display per line of output. The default is two
columns. -e does not affect all output formats.
-g Displays cluster file system global statistics. Not valid on non-cluster (local) mounted file
systems.
-i Displays inode cache and DNLC statistics. -i is the default output format.
-r infile Replays output from the specified file infile. You can create output files using the
-w
option.
-s Displays per-file system statistics for cluster file systems. Not valid on non-cluster (local)
mounted file systems.
-t seconds Specifies the duration of the sampling interval in seconds.
-v Displays VxFS shared counters and statistics.
-w outfile Appends output to the specified file outfile. vxfsstat can be invoked multiple times with
the same file to collect multiple samples. The -w option can only be used with the -c, and
-t options.
-x Displays per-file system VxFS statistics.
-z Displays only non-zero values.
Operands
vxfsstat recognizes the following operand:
mount_point Name of any VxFS file system mount point. mount_point is used as an ioctl entry point to
access the statistics maintained by the VxFS kernel.
Notes
The vxfsstat command was introduced to provide a diagnostic and tuning tool for knowledgeable VxFS
file system users. The command is still under development and may undergo significant additions and
changes. There is a strong possibility that functionality introduced and modified in future versions will
not be completely backward compatible. Take this into account when you begin using this command and
incorporating it into scripts.
Section 1M−−898 Hewlett-Packard Company − 1 − HP-UX 11i Version 2: August 2003