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diff --git a/doc/sg_copy_results.8 b/doc/sg_copy_results.8 new file mode 100644 index 00000000..2e2203bf --- /dev/null +++ b/doc/sg_copy_results.8 @@ -0,0 +1,126 @@ +.TH SG_COPY_RESULTS "8" "September 2014" "sg3_utils\-1.40" SG3_UTILS +.SH NAME +sg_copy_results \- send SCSI RECEIVE COPY RESULTS command (XCOPY related) +.SH SYNOPSIS +.B sg_copy_results +[\fI\-\-failed\fR|\fI\-\-params\fR|\fI\-\-receive\fR|\fI\-\-status\fR] +[\fI\-\-help\fR] [\fI\-\-hex\fR] [\fI\-\-list_id=ID\fR] [\fI\-\-readonly\fR] +[\fI\-\-verbose\fR] [\fI\-\-version\fR] [\fI\-\-xfer_len=BTL\fR] \fIDEVICE\fR +.SH DESCRIPTION +.\" Add any additional description here +.PP +This utility is designed to query the status of the SCSI Extended +Copy (XCOPY) facility (see SPC\-3 revision 23 sections 6.3 and 6.17), present +in some modern storage arrays. This utility sends a SCSI RECEIVE COPY +RESULTS command to the given \fIDEVICE\fR and displays the response. +.PP +During the draft stages of SPC\-4 the T10 committee has expanded the XCOPY +command so that it now has two variants: "LID1" (for a List Identifier +length of 1 byte) and "LID4" (for a List Identifier length of 4 bytes). +This utility supports the older, LID1 variant which is also found in SPC\-3 +and earlier. While the LID1 variant in SPC\-4 is command level (binary) +compatible with XCOPY as defined in SPC\-3, some of the command naming has +changed. This utility uses the older, SPC\-3 XCOPY names. +.PP +The command has four distinct modes of operation, distinguished by +the service action field: +.TP +\fBCOPY STATUS [SPC\-4: RECEIVE COPY STATUS(LID1)]\fR +Displays the current status of the EXTENDED COPY command identified by +the list id field. +.TP +\fBRECEIVE DATA [SPC\-4: RECEIVE COPY DATA(LID1)]\fR +Return the held data read by the EXTENDED COPY command identified by +the list id field. This option is only meaningful if the respective +segment descriptor are supported. +.TP +\fBOPERATING PARAMETERS [SPC\-4: RECEIVE COPY OPERATING PARAMETERS]\fR +Return copy manager operating parameters. This option is also useful +to determine if the SCSI Extended Copy facility is supported. +.TP +\fBFAILED SEGMENT DETAILS [SPC\-4: RECEIVE COPY FAILURE DETAILS(LID1)]\fR +Return copy target device sense data and other information about any +failed segments. + +.SH OPTIONS +Arguments to long options are mandatory for short options as well. +.TP +\fB\-f\fR, \fB\-\-failed\fR +sets the service action field to FAILED SEGMENT DETAILS [4]. +.TP +\fB\-h\fR, \fB\-\-help\fR +output the usage message then exit. +.TP +\fB\-H\fR, \fB\-\-hex\fR +prints out the response buffer in hex. +.TP +\fB\-l\fR, \fB\-\-list_id\fR=\fIID\fR +sets the list identifier field to \fIID\fR (default: 0). +.TP +\fB\-p\fR, \fB\-\-params\fR +sets the service action field to OPERATING PARAMETERS [3]. +This is the default. +.TP +\fB\-R\fR, \fB\-\-readonly\fR +open the \fIDEVICE\fR read\-only (e.g. in Unix with the O_RDONLY flag). +The default is to open it read\-write. +.TP +\fB\-r\fR, \fB\-\-receive\fR +sets the service action field to RECEIVE DATA [1]. +.TP +\fB\-s\fR, \fB\-\-status\fR +sets the service action field to COPY STATUS [0]. +.TP +\fB\-v\fR, \fB\-\-verbose\fR +increase the level of verbosity, (i.e. debug output). +.TP +\fB\-V\fR, \fB\-\-version\fR +print the version string and then exit. +.TP +\fB\-x\fR, \fB\-\-xfer_len\fR=\fIBTL\fR +sets the allocation length field to \fIBTL\fR. It is the byte transfer +length and is the maximum (byte) size of the response. \fIBTL\fR must be +less than 10000 and defaults to 520. +.SH NOTES +Decoding of \fIRECEIVE DATA\fR service action is not implemented. +.PP +In a similar way the functionality of sg_xcopy has been ported to the +more general ddpt utility (and package), the functionality of this utility +has been ported to the ddptctl utility. +.SH EXAMPLES +Query the operating parameters for a device: +.PP +# sg_copy_results \-p /dev/sdo +.br +Receive copy results (report operating parameters): + Supports no list identifier: no + Maximum target descriptor count: 2 + Maximum segment descriptor count: 1 + Maximum descriptor list length: 92 bytes + Maximum segment length: 33553920 bytes + Inline data not supported + Held data limit: 0 bytes + Maximum stream device transfer size: 0 bytes + Total concurrent copies: 0 + Maximum concurrent copies: 255 + Data segment granularity: 512 bytes + Inline data granularity: 1 bytes + Held data granularity: 1 bytes + Implemented descriptor list: + Segment descriptor 0x02: Copy from block device to block device + Target descriptor 0xe4: Identification descriptor + +.SH EXIT STATUS +The exit status of sg_copy_results is 0 when it is successful. Otherwise see +the sg3_utils(8) man page. +.SH AUTHORS +Written by Douglas Gilbert. +.SH "REPORTING BUGS" +Report bugs to <dgilbert at interlog dot com>. +.SH COPYRIGHT +Copyright \(co 2012\-2014 Hannes Reinecke and Douglas Gilbert +.br +This software is distributed under a BSD\-2\-Clause license. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +.SH "SEE ALSO" +.B sg_xcopy(sg3_utils), ddpt,ddptctl(ddpt) |