102 lines
3.6 KiB
Groff
102 lines
3.6 KiB
Groff
'\" t
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.\" Title: iscsi-md5sum
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.\" Author: [see the "AUTHOR" section]
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.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
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.\" Date: 10/25/2023
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.\" Manual: iscsi-md5sum: calculate MD5
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.\" Source: iscsi-md5sum
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.\" Language: English
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.\"
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.TH "ISCSI\-MD5SUM" "1" "10/25/2023" "iscsi\-md5sum" "iscsi\-md5sum: calculate MD5"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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iscsi-md5sum \- Utility to calculate MD5 value of an iSCSI LUN at range [LBAm, LBAn)
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.SH "SYNOPSIS"
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.HP \w'\fBiscsi\-md5sum\ [\ OPTIONS\ ]\ <ISCSI\-PORTAL>\fR\ 'u
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\fBiscsi\-md5sum [ OPTIONS ] <ISCSI\-PORTAL>\fR
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.HP \w'\fBiscsi\-md5sum\fR\ 'u
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\fBiscsi\-md5sum\fR [\-i\ \-\-initiator\-name=<IQN>] [\-o\ \-\-offset] [\-l\ \-\-length] [\-d\ \-\-debug] [\-?\ \-\-help] [\-\-usage]
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.SH "DESCRIPTION"
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.PP
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iscsi\-md5sum is a utility to calculate MD5 value of an iSCSI LUN at range [LBAm, LBAn)\&.
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.SH "ISCSI PORTAL URL FORMAT"
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.PP
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iSCSI portal format is \*(Aqiscsi://[<username>[%<password>]@]<host>[:<port>]\*(Aq
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.PP
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Username and password are only required if the target requires CHAP authentication\&. Optionally you can specify the username and password via the environment variables LIBISCSI_CHAP_USERNAME and LIBISCSI_CHAP_PASSWORD\&.
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.PP
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Host can be specified either as a hostname, an IPv4 address or an IPv6 address\&. Examples:
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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iscsi://192\&.0\&.2\&.1
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iscsi://[2001:DB8::1]:3261
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iscsi://ronnie%password@iscsi\&.example\&.com
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.fi
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.if n \{\
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.RE
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.\}
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.PP
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Port is the TCP port on the target to connect to\&. Default is 3260\&.
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.SH "OPTIONS"
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.PP
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\-i \-\-initiator\-name=<IQN>
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.RS 4
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This specifies the initiator\-name that iscsi\-md5sum will use when logging in to the target\&.
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.sp
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The default name is \*(Aqiqn\&.2007\-10\&.com\&.github:sahlberg:libiscsi:iscsi\-md5sum\*(Aq but you can use this argument to override this\&. This is mainly needed for cases where the target is configured with access\-control to only allow discovery logins from known initiator\-names\&.
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.RE
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.PP
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\-o \-\-offset
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.RS 4
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Byte offset into the target from which to start calculating\&. The provided value must be aligned to the target sector size\&. The default value is zero\&.
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.RE
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.PP
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\-l \-\-length
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.RS 4
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The number of bytes to calculate (counting from the starting point)\&. The provided value must be aligned to the target sector size\&. If the specified value extends past the end of the device, iscsi\-md5sum will stop at the device size boundary\&. The default value extends to the end of the device\&.
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.RE
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.PP
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\-d \-\-debug
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.RS 4
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Print debug information\&.
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.RE
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.PP
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\-? \-\-help
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.RS 4
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Display basic help text\&.
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.RE
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.PP
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\-\-usage
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.RS 4
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Display basic usage text\&.
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.RE
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.SH "AUTHOR"
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.PP
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zhenwei pi <pizhenwei@bytedance\&.com>
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.SH "SEE ALSO"
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.PP
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iscsi\-inq(1)
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\m[blue]\fB\%http://github.com/sahlberg/libiscsi\fR\m[]
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