GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  SCSI_READCAP (8)

NAME

scsi_readcap - do SCSI READ CAPACITY command on disks

CONTENTS

Synopsis
Description
Options
Exit Status
Authors
Copyright

SYNOPSIS

scsi_readcap [--brief] [--help] [--long] [--verbose] DEVICE [DEVICE]*

DESCRIPTION

This bash shell script calls the sg_readcap utility on each given DEVICE. This will send a SCSI READ CAPACITY command to each DEVICE.

The default action of this script is to send the 10 byte cdb READ CAPACITY(10) command to each DEVICE. If a response indicates the number of blocks is greater than or equal to ’2**32 - 1’ then the READ CAPACITY(16) is sent and its response is output.

OPTIONS

Arguments to long options are mandatory for short options as well.
-b, --brief
  shortens the output to two hexadecimal numbers, both prefixed by ’0x’. The first number is the number of blocks available and the second is the size of each blocks in bytes (e.g. ’0x12a19eb0 0x200’). If an error is detected ’0x0 0x0’ is output and the script continues if there are more DEVICEs.
-h, --help print out the usage message then exit.
-l, --long the default is to send the READ CAPACITY(10) command (i.e. the 10 byte cdb variant). When this option is given the READ CAPACITY(16) command is sent. The latter command yields more information in its response.
-v, --verbose
  increase level or verbosity.

EXIT STATUS

The exit status of this script is 0 when it is successful. Otherwise the exit status is that of the last sg_readcap utility called. See the sg3_utils(8) man page.

AUTHORS

Written by D. Gilbert

COPYRIGHT

Copyright © 2009-2013 Douglas Gilbert
This software is distributed under a FreeBSD license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO

sg_readcap (sg3_utils)
Search for    or go to Top of page |  Section 8 |  Main Index


sg3_utils-1.36 SCSI_READCAP (8) May 2013

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.