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diskinfo(8) [freebsd man page]

DISKINFO(8)						    BSD System Manager's Manual 					       DISKINFO(8)

diskinfo -- get information about disk device SYNOPSIS
diskinfo [-ctv] disk ... DESCRIPTION
The diskinfo utility prints out information about a disk device, and optionally runs a naive performance test on the device. If given no arguments, the output will be a single line per specified device with the following fields: device name, sectorsize, media size in bytes, media size in sectors, stripe size, stripe offset, firmware cylinders, firmware heads, and firmware sectors. The last three fields are only present if the information is available. If given the -v option, the fields will be printed one per line with a descriptive comment. The -c option triggers a simple measurement of the I/O read command overhead. The -t option triggers a simple and rather naive benchmark of the disks seek and transfer performance. HISTORY
The diskinfo command appeared in FreeBSD 5.1. AUTHORS
Poul-Henning Kamp BUGS
There are in order of increasing severity: lies, damn lies, statistics, and computer benchmarks. BSD
November 9, 2004 BSD

Check Out this Related Man Page

NEWFS_SYSVBFS(8)					    BSD System Manager's Manual 					  NEWFS_SYSVBFS(8)

newfs_sysvbfs -- construct a new System V Boot File System SYNOPSIS
newfs_sysvbfs [-FZ] [-s sectors] special DESCRIPTION
newfs_sysvbfs builds a System V boot file system on the specified special. If it is a device, the size information will be taken from the disk label and before running newfs_sysvbfs the disk must be labeled using disklabel(8); the proper fstype is ``SysVBFS''. Otherwise, the size must be specified on the command line. The following arguments are supported: -F Create file system to a regular file. -s sectors Create file system with specified number of disk sectors. -Z Fill file with zeroes instead of creating a sparse file. SEE ALSO
disklabel(5), disktab(5), disklabel(8), diskpart(8) HISTORY
A newfs_sysvbfs command first appeared in NetBSD 4.0. BUGS
The sysvbfs support is still experimental and there are few sanity checks. BSD
April 9, 2009 BSD

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