1a362eb63SPoul-Henning Kamp.\" 2a362eb63SPoul-Henning Kamp.\" Copyright (c) 2003 Poul-Henning Kamp 3a362eb63SPoul-Henning Kamp.\" All rights reserved. 4a362eb63SPoul-Henning Kamp.\" 5a362eb63SPoul-Henning Kamp.\" Redistribution and use in source and binary forms, with or without 6a362eb63SPoul-Henning Kamp.\" modification, are permitted provided that the following conditions 7a362eb63SPoul-Henning Kamp.\" are met: 8a362eb63SPoul-Henning Kamp.\" 1. Redistributions of source code must retain the above copyright 9a362eb63SPoul-Henning Kamp.\" notice, this list of conditions and the following disclaimer. 10a362eb63SPoul-Henning Kamp.\" 2. Redistributions in binary form must reproduce the above copyright 11a362eb63SPoul-Henning Kamp.\" notice, this list of conditions and the following disclaimer in the 12a362eb63SPoul-Henning Kamp.\" documentation and/or other materials provided with the distribution. 13a362eb63SPoul-Henning Kamp.\" 3. The names of the authors may not be used to endorse or promote 14a362eb63SPoul-Henning Kamp.\" products derived from this software without specific prior written 15a362eb63SPoul-Henning Kamp.\" permission. 16a362eb63SPoul-Henning Kamp.\" 17a362eb63SPoul-Henning Kamp.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18a362eb63SPoul-Henning Kamp.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19a362eb63SPoul-Henning Kamp.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20a362eb63SPoul-Henning Kamp.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21a362eb63SPoul-Henning Kamp.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22a362eb63SPoul-Henning Kamp.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23a362eb63SPoul-Henning Kamp.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24a362eb63SPoul-Henning Kamp.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25a362eb63SPoul-Henning Kamp.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26a362eb63SPoul-Henning Kamp.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27a362eb63SPoul-Henning Kamp.\" SUCH DAMAGE. 28a362eb63SPoul-Henning Kamp.\" 29a362eb63SPoul-Henning Kamp.\" $FreeBSD$ 30a362eb63SPoul-Henning Kamp.\" 319046f8cdSRuslan Ermilov.Dd November 9, 2004 32a362eb63SPoul-Henning Kamp.Dt DISKINFO 8 33a362eb63SPoul-Henning Kamp.Os 34a362eb63SPoul-Henning Kamp.Sh NAME 35a362eb63SPoul-Henning Kamp.Nm diskinfo 36a362eb63SPoul-Henning Kamp.Nd get information about disk device 37a362eb63SPoul-Henning Kamp.Sh SYNOPSIS 38a362eb63SPoul-Henning Kamp.Nm 399046f8cdSRuslan Ermilov.Op Fl ctv 40a362eb63SPoul-Henning Kamp.Ar disk ... 41a362eb63SPoul-Henning Kamp.Sh DESCRIPTION 42a362eb63SPoul-Henning KampThe 43a362eb63SPoul-Henning Kamp.Nm 44a388918dSRuslan Ermilovutility prints out information about a disk device, 45a388918dSRuslan Ermilovand optionally runs a naive performance test on the device. 46a362eb63SPoul-Henning Kamp.Pp 47a388918dSRuslan ErmilovIf given no arguments, the output will be a single line per specified device 48a362eb63SPoul-Henning Kampwith the following fields: device name, sectorsize, media size in bytes, 49a388918dSRuslan Ermilovmedia size in sectors, firmware cylinders, firmware heads, and firmware sectors. 50a362eb63SPoul-Henning KampThe last three fields are only present if the information is available. 51a362eb63SPoul-Henning Kamp.Pp 52a362eb63SPoul-Henning KampIf given the 53a362eb63SPoul-Henning Kamp.Fl v 54a362eb63SPoul-Henning Kampoption, the fields will be printed one per line with a descriptive comment. 55a362eb63SPoul-Henning Kamp.Pp 56a362eb63SPoul-Henning KampThe 576a33b3c6SSøren Schmidt.Fl c 586a33b3c6SSøren Schmidtoption triggers a simple measurement of the I/O read command overhead. 596a33b3c6SSøren Schmidt.Pp 606a33b3c6SSøren SchmidtThe 61a362eb63SPoul-Henning Kamp.Fl t 62a388918dSRuslan Ermilovoption triggers a simple and rather naive benchmark of the disks seek 63a362eb63SPoul-Henning Kampand transfer performance. 64a362eb63SPoul-Henning Kamp.Sh AUTHORS 65a362eb63SPoul-Henning Kamp.An Poul-Henning Kamp 66a362eb63SPoul-Henning Kamp.Sh BUGS 67a885db9aSGordon TetlowThere are in order of increasing severity: lies, 68a885db9aSGordon Tetlowdamn lies, statistics, and computer benchmarks. 69a362eb63SPoul-Henning Kamp.Sh HISTORY 70a388918dSRuslan ErmilovThe 71a362eb63SPoul-Henning Kamp.Nm 72a362eb63SPoul-Henning Kampcommand appeared in 73a388918dSRuslan Ermilov.Fx 5.1 . 74