Ubuntu Manpage: sg_copy_results - send SCSI RECEIVE COPY RESULTS command (XCOPY related)

Provided by: sg3-utils_1.46-3ubuntu2.1_amd64

NAME

       sg_copy_results - send SCSI RECEIVE COPY RESULTS command (XCOPY related)

SYNOPSIS

       sg_copy_results  [--failed|--params|--receive|--status]  [--help]  [--hex]  [--list_id=ID]
       [--readonly] [--verbose] [--version] [--xfer_len=BTL] DEVICE

DESCRIPTION

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 DEVICE and displays the
response.

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.

The command has four distinct modes of operation, distinguished by the service action
field:

COPY STATUS [SPC-4: RECEIVE COPY STATUS(LID1)]
Displays the current status of the EXTENDED COPY command identified by the list id
field.

RECEIVE DATA [SPC-4: RECEIVE COPY DATA(LID1)]
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.

OPERATING PARAMETERS [SPC-4: RECEIVE COPY OPERATING PARAMETERS]
Return copy manager operating parameters. This option is also useful to determine
if the SCSI Extended Copy facility is supported.

FAILED SEGMENT DETAILS [SPC-4: RECEIVE COPY FAILURE DETAILS(LID1)]
Return copy target device sense data and other information about any failed
segments.

OPTIONS

       Arguments to long options are mandatory for short options as well.

       -f, --failed
              sets the service action field to FAILED SEGMENT DETAILS [4].

       -h, --help
              output the usage message then exit.

       -H, --hex
              prints out the response buffer in hex.

       -l, --list_id=ID
              sets the list identifier field to ID (default: 0).

       -p, --params
              sets the service action field to OPERATING PARAMETERS [3].  This is the default.

       -R, --readonly
              open the DEVICE read-only (e.g. in Unix with the O_RDONLY flag).  The default is to
              open it read-write.

       -r, --receive
              sets the service action field to RECEIVE DATA [1].

       -s, --status
              sets the service action field to COPY STATUS [0].

       -v, --verbose
              increase the level of verbosity, (i.e. debug output).

       -V, --version
              print the version string and then exit.

       -x, --xfer_len=BTL
              sets  the allocation length field to BTL. It is the byte transfer length and is the
              maximum (byte) size of the response. BTL must be less than 10000  and  defaults  to
              520.

NOTES

       Decoding of RECEIVE DATA service action is not implemented.

       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.

EXAMPLES

       Query the operating parameters for a device:

       # sg_copy_results -p /dev/sdo
       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

EXIT STATUS

       The  exit  status  of  sg_copy_results  is  0  when  it  is  successful. Otherwise see the
       sg3_utils(8) man page.

AUTHORS

       Written by Douglas Gilbert.

REPORTING BUGS

       Report bugs to <dgilbert at interlog dot com>.

COPYRIGHT

       Copyright © 2012-2014 Hannes Reinecke and Douglas Gilbert
       This software is distributed under a FreeBSD license. There is NO warranty; not  even  for
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.