camcontrol.8: Descriptions before examples
This page has a lot of examples, so having them in the previous order can be confusing. Rewrite to the normal order where the descriptions come before the command, followed by a colon, which is still clear even jumping to the middle of the section. PR: 291759 MFC after: 3 days Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D54285
This commit is contained in:
Alexander Ziaee
+149
-202
@@ -2684,303 +2684,250 @@ is the transport layer device.
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|||||||
are the CAM application passthrough devices.
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are the CAM application passthrough devices.
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.El
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.El
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.Sh EXAMPLES
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.Sh EXAMPLES
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.Dl camcontrol eject -n cd -u 1 -v
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.Pp
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Eject the CD from cd1, and print SCSI sense information if the command
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Eject the CD from cd1, and print SCSI sense information if the command
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fails.
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fails:
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.Pp
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.Pp
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.Dl camcontrol tur da0
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.Dl camcontrol eject -n cd -u 1 -v
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.Pp
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.Pp
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Send the SCSI test unit ready command to da0.
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Send the SCSI test unit ready command to da0.
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The
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The
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.Nm
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.Nm
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utility will report whether the disk is ready, but will not display sense
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utility will report whether the disk is ready,
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information if the command fails since the
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but will not display sense information if the command fails since the
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.Fl v
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.Fl v
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switch was not specified.
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switch was not specified:
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.Bd -literal -offset indent
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.Pp
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camcontrol tur da1 -E -C 4 -t 50 -Q head -v
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.Dl camcontrol tur da0
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.Ed
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.Pp
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.Pp
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Send a test unit ready command to da1.
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Send a test unit ready command to da1.
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Enable kernel error recovery.
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Enable kernel error recovery.
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Specify a retry count of 4, and a timeout of 50 seconds.
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Specify a retry count of 4, and a timeout of 50 seconds.
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Enable sense
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Enable sense printing
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printing (with the
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.Pq with the Fl v flag
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.Fl v
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if the command fails.
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flag) if the command fails.
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Since error recovery is turned on,
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Since error recovery is turned on, the
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the disk will be spun up if it is not currently spinning.
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disk will be spun up if it is not currently spinning.
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The SCSI task attribute for the command will be set to Head of Queue.
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The
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.Tn SCSI
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task attribute for the command will be set to Head of Queue.
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The
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The
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.Nm
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.Nm
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utility will report whether the disk is ready.
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utility will report whether the disk is ready:
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.Pp
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.Dl camcontrol tur da1 -E -C 4 -t 50 -Q head -v
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.Pp
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Issue a READ BUFFER command (0x3C) to cd1.
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Display the buffer size of cd1,
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and display the first 10 bytes from the cache on cd1.
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Display SCSI sense information if the command fails:
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.Bd -literal -offset indent
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.Bd -literal -offset indent
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camcontrol cmd -n cd -u 1 -v -c "3C 00 00 00 00 00 00 00 0e 00" \e
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camcontrol cmd -n cd -u 1 -v -c "3C 00 00 00 00 00 00 00 0e 00" \e
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-i 0xe "s1 i3 i1 i1 i1 i1 i1 i1 i1 i1 i1 i1"
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-i 0xe "s1 i3 i1 i1 i1 i1 i1 i1 i1 i1 i1 i1"
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.Ed
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.Ed
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.Pp
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.Pp
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Issue a READ BUFFER command (0x3C) to cd1.
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Issue a WRITE BUFFER (0x3B) command to cd1.
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Display the buffer size of cd1,
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Write out 10 bytes of data,
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and display the first 10 bytes from the cache on cd1.
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not including the (reserved) 4 byte header.
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Display SCSI sense
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Print out sense information if the command fails.
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information if the command fails.
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Be very careful with this command,
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improper use may cause data corruption:
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.Bd -literal -offset indent
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.Bd -literal -offset indent
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camcontrol cmd -n cd -u 1 -v -c "3B 00 00 00 00 00 00 00 0e 00" \e
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camcontrol cmd -n cd -u 1 -v -c "3B 00 00 00 00 00 00 00 0e 00" \e
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-o 14 "00 00 00 00 1 2 3 4 5 6 v v v v" 7 8 9 8
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-o 14 "00 00 00 00 1 2 3 4 5 6 v v v v" 7 8 9 8
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.Ed
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.Ed
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.Pp
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.Pp
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Issue a WRITE BUFFER (0x3B) command to cd1.
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Edit mode page 1 (the Read-Write Error Recover page) for da3,
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Write out 10 bytes of data,
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and save the settings on the drive.
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not including the (reserved) 4 byte header.
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Mode page 1 contains a disk drive's auto read and
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Print out sense information if
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write reallocation settings, among other things:
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the command fails.
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Be very careful with this command, improper use may
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cause data corruption.
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.Bd -literal -offset indent
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.Bd -literal -offset indent
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camcontrol modepage da3 -m 1 -e -P 3
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camcontrol modepage da3 -m 1 -e -P 3
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.Ed
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.Ed
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.Pp
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.Pp
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Edit mode page 1 (the Read-Write Error Recover page) for da3, and save the
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Rescan all SCSI buses in the system for devices that have been added,
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settings on the drive.
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removed or changed:
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Mode page 1 contains a disk drive's auto read and
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write reallocation settings, among other things.
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.Pp
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.Pp
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.Dl camcontrol rescan all
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.Dl camcontrol rescan all
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.Pp
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.Pp
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Rescan all SCSI buses in the system for devices that have been added,
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Rescan SCSI bus 0 for devices that have been added, removed or changed:
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removed or changed.
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.Pp
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.Pp
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.Dl camcontrol rescan 0
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.Dl camcontrol rescan 0
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.Pp
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.Pp
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Rescan SCSI bus 0 for devices that have been added, removed or changed.
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Rescan SCSI bus 0, target 1, lun 0 to see if it has been added, removed,
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or changed:
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.Pp
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.Pp
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.Dl camcontrol rescan 0:1:0
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.Dl camcontrol rescan 0:1:0
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.Pp
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.Pp
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Rescan SCSI bus 0, target 1, lun 0 to see if it has been added, removed, or
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Set the number of concurrent transactions for da5 to 24:
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changed.
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.Pp
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.Pp
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.Dl camcontrol tags da5 -N 24
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.Dl camcontrol tags da5 -N 24
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.Pp
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.Pp
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Set the number of concurrent transactions for da5 to 24.
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Disable tagged queueing for da4:
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.Bd -literal -offset indent
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camcontrol negotiate -n da -u 4 -T disable
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.Ed
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.Pp
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.Pp
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Disable tagged queueing for da4.
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.Dl camcontrol negotiate -n da -u 4 -T disable
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.Bd -literal -offset indent
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camcontrol negotiate -n da -u 3 -R 20.000 -O 15 -a
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.Ed
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.Pp
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.Pp
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Negotiate a sync rate of 20MHz and an offset of 15 with da3.
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Negotiate a sync rate of 20MHz and an offset of 15 with da3.
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Then send a
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Then send a Test Unit Ready command to make the settings take effect:
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Test Unit Ready command to make the settings take effect.
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.Bd -literal -offset indent
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camcontrol smpcmd ses0 -v -r 4 "40 0 00 0" -R 1020 "s9 i1"
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.Ed
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.Pp
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.Pp
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Send the SMP REPORT GENERAL command to ses0, and display the number of PHYs
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.Dl camcontrol negotiate -n da -u 3 -R 20.000 -O 15 -a
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it contains.
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Display SMP errors if the command fails.
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.Bd -literal -offset indent
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camcontrol security ada0
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.Ed
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.Pp
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.Pp
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Report security support and settings for ada0
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Send the SMP REPORT GENERAL command to ses0,
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.Bd -literal -offset indent
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and display the number of PHYs it contains,
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camcontrol security ada0 -U user -s MyPass
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displaying SMP errors if the command fails:
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.Ed
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.Pp
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.Pp
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Enable security on device ada0 with the password MyPass
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.Dl camcontrol smpcmd ses0 -v -r 4 "40 0 00 0" -R 1020 "s9 i1"
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.Bd -literal -offset indent
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camcontrol security ada0 -U user -e MyPass
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.Ed
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.Pp
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.Pp
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Secure erase ada0 which has had security enabled with user password MyPass
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Report security support and settings for ada0:
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.Pp
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.Pp
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.Em WARNING! WARNING! WARNING!
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.Dl camcontrol security ada0
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.Pp
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.Pp
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This will
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Enable security on device ada0 with the password MyPass:
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.Pp
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.Dl camcontrol security ada0 -U user -s MyPass
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.Pp
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Secure erase the security enabled ada0 with user password MyPass.
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.Pp
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.Em WARNING ! WARNING ! WARNING !
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.Pp
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The following command will
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.Em ERASE ALL
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.Em ERASE ALL
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data from the device, so backup your data before using!
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data from the device, so backup your data before using!
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.Pp
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.Pp
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This command can be used against an SSD drive to restoring it to
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This will restore a solid state drive
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factory default write performance.
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.Pq SSD
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.Bd -literal -offset indent
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to factory default write performance:
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camcontrol hpa ada0
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.Ed
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.Pp
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.Pp
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Report HPA support and settings for ada0 (also reported via
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.Dl camcontrol security ada0 -U user -e MyPass
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identify).
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.Bd -literal -offset indent
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camcontrol hpa ada0 -s 10240
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.Ed
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.Pp
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.Pp
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Enables HPA on ada0 setting the maximum reported sectors to 10240.
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Report HPA support and settings for ada0 (also reported via identify):
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.Pp
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.Pp
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.Em WARNING! WARNING! WARNING!
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.Dl camcontrol hpa ada0
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.Pp
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.Pp
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This will
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Enable HPA on ada0 setting the maximum reported sectors to 10240.
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.Pp
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.Em WARNING ! WARNING ! WARNING !
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.Pp
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The following command will
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.Em PREVENT ACCESS
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.Em PREVENT ACCESS
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to all data on the device beyond this limit until HPA is disabled by setting
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to all data on the device beyond this limit until HPA is disabled
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HPA to native max sectors of the device, which can only be done after a
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by setting HPA to native max sectors of the device,
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power-on or hardware reset!
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which can only be done after a power-on or hardware reset!
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.Pp
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.Pp
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||||||
.Em DO NOT
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.Em DO NOT
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use this on a device which has an active filesystem!
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use this on a device which has an active filesystem:
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.Bd -literal -offset indent
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camcontrol persist da0 -v -i read_keys
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.Ed
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.Pp
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.Pp
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This will read any persistent reservation keys registered with da0, and
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.Dl camcontrol hpa ada0 -s 10240
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display any errors encountered when sending the PERSISTENT RESERVE IN
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.Tn SCSI
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command.
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.Bd -literal -offset indent
|
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camcontrol persist da0 -v -o register -a -K 0x12345678
|
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.Ed
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.Pp
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.Pp
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||||||
This will register the persistent reservation key 0x12345678 with da0,
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This will read any persistent reservation keys registered with da0,
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apply that registration to all ports on da0, and display any errors that
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and display any errors encountered when sending the
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||||||
occur when sending the PERSISTENT RESERVE OUT command.
|
PERSISTENT RESERVE IN SCSI command:
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.Bd -literal -offset indent
|
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camcontrol persist da0 -v -o reserve -s lun -k 0x12345678 -T ex_ac
|
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.Ed
|
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.Pp
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.Pp
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This will reserve da0 for the exlusive use of the initiator issuing the
|
.Dl camcontrol persist da0 -v -i read_keys
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||||||
command.
|
.Pp
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||||||
|
Register the persistent reservation key 0x12345678 with da0,
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||||||
|
apply that registration to all ports on da0,
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and display any errors that
|
||||||
|
occur when sending the PERSISTENT RESERVE OUT command:
|
||||||
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.Pp
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||||||
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.Dl camcontrol persist da0 -v -o register -a -K 0x12345678
|
||||||
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.Pp
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||||||
|
Reserve da0 for the exclusive use of the initiator issuing the command.
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The scope of the reservation is the entire LUN.
|
The scope of the reservation is the entire LUN.
|
||||||
Any errors sending the PERSISTENT RESERVE OUT command will be displayed.
|
Any errors sending the PERSISTENT RESERVE OUT command will be displayed:
|
||||||
.Bd -literal -offset indent
|
|
||||||
camcontrol persist da0 -v -i read_full
|
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||||||
.Ed
|
|
||||||
.Pp
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.Pp
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||||||
This will display the full status of all reservations on da0 and print out
|
.Dl camcontrol persist da0 -v -o reserve -s lun -k 0x12345678 -T ex_ac
|
||||||
status if there are any errors.
|
.Pp
|
||||||
.Bd -literal -offset indent
|
Display the full status of all reservations on da0
|
||||||
camcontrol persist da0 -v -o release -k 0x12345678 -T ex_ac
|
and print out status if there are any errors:
|
||||||
.Ed
|
.Pp
|
||||||
|
.Dl camcontrol persist da0 -v -i read_full
|
||||||
.Pp
|
.Pp
|
||||||
This will release a reservation on da0 of the type ex_ac
|
This will release a reservation on da0 of the type ex_ac
|
||||||
(Exclusive Access).
|
.Pq Exclusive Access .
|
||||||
The Reservation Key for this registration is 0x12345678.
|
The Reservation Key for this registration is 0x12345678.
|
||||||
Any errors that occur will be displayed.
|
Any errors that occur will be displayed:
|
||||||
|
.Pp
|
||||||
|
.Dl camcontrol persist da0 -v -o release -k 0x12345678 -T ex_ac
|
||||||
|
.Pp
|
||||||
|
Register the key 0x12345678 with da0,
|
||||||
|
specifying that it applies to the SAS initiators
|
||||||
|
with SAS addresses 0x1234567812345678 and 0x8765432187654321:
|
||||||
.Bd -literal -offset indent
|
.Bd -literal -offset indent
|
||||||
camcontrol persist da0 -v -o register -K 0x12345678 -S \e
|
camcontrol persist da0 -v -o register -K 0x12345678 -S \e
|
||||||
-I sas,0x1234567812345678 -I sas,0x8765432187654321
|
-I sas,0x1234567812345678 -I sas,0x8765432187654321
|
||||||
.Ed
|
.Ed
|
||||||
.Pp
|
.Pp
|
||||||
This will register the key 0x12345678 with da0, specifying that it applies
|
Move the registration from the current initiator,
|
||||||
to the SAS initiators with SAS addresses 0x1234567812345678 and
|
whose Registration Key is 0x87654321,
|
||||||
0x8765432187654321.
|
to the Fibre Channel initiator with the
|
||||||
|
Fiber Channel World Wide Node Name 0x1234567812345678.
|
||||||
|
A new registration key, 0x12345678, will be registered for the initiator
|
||||||
|
with the Fibre Channel World Wide Node Name 0x1234567812345678,
|
||||||
|
and the current initiator will be unregistered from the target.
|
||||||
|
The reservation will be moved to relative target port 2 on the target
|
||||||
|
device.
|
||||||
|
The registration will persist across power losses:
|
||||||
.Bd -literal -offset indent
|
.Bd -literal -offset indent
|
||||||
camcontrol persist da0 -v -o register_move -k 0x87654321 \e
|
camcontrol persist da0 -v -o register_move -k 0x87654321 \e
|
||||||
-K 0x12345678 -U -p -R 2 -I fcp,0x1234567812345678
|
-K 0x12345678 -U -p -R 2 -I fcp,0x1234567812345678
|
||||||
.Ed
|
.Ed
|
||||||
.Pp
|
.Pp
|
||||||
This will move the registration from the current initiator, whose
|
Read and decode the attribute values from partition 1 on the tape
|
||||||
Registration Key is 0x87654321, to the Fibre Channel initiator with the
|
in tape drive sa0, and will display any SCSI errors that result:
|
||||||
Fiber Channel World Wide Node Name 0x1234567812345678.
|
|
||||||
A new registration key, 0x12345678, will be registered for the initiator
|
|
||||||
with the Fibre Channel World Wide Node Name 0x1234567812345678, and the
|
|
||||||
current initiator will be unregistered from the target.
|
|
||||||
The reservation will be moved to relative target port 2 on the target
|
|
||||||
device.
|
|
||||||
The registration will persist across power losses.
|
|
||||||
.Bd -literal -offset indent
|
|
||||||
camcontrol attrib sa0 -v -i attr_values -p 1
|
|
||||||
.Ed
|
|
||||||
.Pp
|
.Pp
|
||||||
This will read and decode the attribute values from partition 1 on the tape
|
.Dl camcontrol attrib sa0 -v -i attr_values -p 1
|
||||||
in tape drive sa0, and will display any
|
|
||||||
.Tn SCSI
|
|
||||||
errors that result.
|
|
||||||
.Bd -literal -offset indent
|
|
||||||
camcontrol zone da0 -v -c rz -P summary
|
|
||||||
.Ed
|
|
||||||
.Pp
|
.Pp
|
||||||
This will request the SMR zone list from disk da0, and print out a
|
Request the SMR zone list from disk da0, and print out a summary
|
||||||
summary of the zone parameters, and display any
|
of the zone parameters, and display any SCSI or ATA errors that result:
|
||||||
.Tn SCSI
|
|
||||||
or
|
|
||||||
.Tn ATA
|
|
||||||
errors that result.
|
|
||||||
.Bd -literal -offset indent
|
|
||||||
camcontrol zone da0 -v -c rz -o reset
|
|
||||||
.Ed
|
|
||||||
.Pp
|
.Pp
|
||||||
This will request the list of SMR zones that should have their write
|
.Dl camcontrol zone da0 -v -c rz -P summary
|
||||||
pointer reset from the disk da0, and display any
|
|
||||||
.Tn SCSI
|
|
||||||
or
|
|
||||||
.Tn ATA
|
|
||||||
errors that result.
|
|
||||||
.Bd -literal -offset indent
|
|
||||||
camcontrol zone da0 -v -c rwp -l 0x2c80000
|
|
||||||
.Ed
|
|
||||||
.Pp
|
.Pp
|
||||||
This will issue the Reset Write Pointer command to disk da0 for the zone
|
Request the list of SMR zones that should have their write pointer reset
|
||||||
that starts at LBA 0x2c80000 and display any
|
from the disk da0, and display any SCSI or ATA errors that result:
|
||||||
.Tn SCSI
|
|
||||||
or
|
|
||||||
.Tn ATA
|
|
||||||
errors that result.
|
|
||||||
.Bd -literal -offset indent
|
|
||||||
camcontrol epc ada0 -c timer -T 60.1 -p Idle_a -e -s
|
|
||||||
.Ed
|
|
||||||
.Pp
|
.Pp
|
||||||
Set the timer for the Idle_a power condition on drive
|
.Dl camcontrol zone da0 -v -c rz -o reset
|
||||||
.Pa ada0
|
|
||||||
to 60.1 seconds, enable that particular power condition, and save the timer
|
|
||||||
value and the enabled state of the power condition.
|
|
||||||
.Bd -literal -offset indent
|
|
||||||
camcontrol epc da4 -c goto -p Standby_z -H
|
|
||||||
.Ed
|
|
||||||
.Pp
|
.Pp
|
||||||
Tell drive
|
Issue the Reset Write Pointer command to disk da0 for the zone that
|
||||||
.Pa da4
|
starts at LBA 0x2c80000 and display any SCSI or ATA errors that result:
|
||||||
to go to the Standby_z power state (which is
|
.Pp
|
||||||
the drive's lowest power state) and hold in that state until it is
|
.Dl camcontrol zone da0 -v -c rwp -l 0x2c80000
|
||||||
explicitly released by another
|
.Pp
|
||||||
|
Set the timer for the Idle_a power condition on drive ada0 to
|
||||||
|
60.1 seconds, enable that particular power condition,
|
||||||
|
and save the timer value and the enabled state of the power condition:
|
||||||
|
.Pp
|
||||||
|
.Dl camcontrol epc ada0 -c timer -T 60.1 -p Idle_a -e -s
|
||||||
|
.Pp
|
||||||
|
Tell drive da4 to go to the Standby_z power state
|
||||||
|
.Pq the drive's lowest power state
|
||||||
|
and hold in that state until it is explicitly released by another
|
||||||
.Cm goto
|
.Cm goto
|
||||||
command.
|
command:
|
||||||
.Bd -literal -offset indent
|
|
||||||
camcontrol epc da2 -c status -P
|
|
||||||
.Ed
|
|
||||||
.Pp
|
.Pp
|
||||||
Report only the power state of
|
.Dl camcontrol epc da4 -c goto -p Standby_z -H
|
||||||
drive
|
.Pp
|
||||||
.Pa da2 .
|
Report only the power state of drive da2.
|
||||||
Some drives will power up in response to the commands sent by the
|
Some drives will power up in response to the commands sent by the
|
||||||
.Pa status
|
.Pa status
|
||||||
subcommand, and the
|
subcommand, and the
|
||||||
.Fl P
|
.Fl P
|
||||||
option causes
|
option causes
|
||||||
.Nm
|
.Nm
|
||||||
to only send the
|
to only send the ATA CHECK POWER MODE command,
|
||||||
.Tn ATA
|
which should not trigger a change in the drive's power state:
|
||||||
CHECK POWER MODE command, which should not trigger a change in the drive's
|
|
||||||
power state.
|
|
||||||
.Bd -literal -offset indent
|
|
||||||
camcontrol epc ada0 -c list
|
|
||||||
.Ed
|
|
||||||
.Pp
|
.Pp
|
||||||
Display the ATA Power Conditions log (Log Address 0x08) for
|
.Dl camcontrol epc da2 -c status -P
|
||||||
drive
|
.Pp
|
||||||
.Pa ada0 .
|
Display the ATA Power Conditions log (Log Address 0x08) for drive ada0:
|
||||||
|
.Pp
|
||||||
|
.Dl camcontrol epc ada0 -c list
|
||||||
|
.Pp
|
||||||
|
Set the timestamp of drive sa0 using a
|
||||||
|
.Xr strptime 3
|
||||||
|
format string followed by a time string
|
||||||
|
that was created using this format string:
|
||||||
.Bd -literal -offset indent
|
.Bd -literal -offset indent
|
||||||
camcontrol timestamp sa0 -s -f "%a, %d %b %Y %T %z" \e
|
camcontrol timestamp sa0 -s -f "%a, %d %b %Y %T %z" \e
|
||||||
-T "Wed, 26 Oct 2016 21:43:57 -0600"
|
-T "Wed, 26 Oct 2016 21:43:57 -0600"
|
||||||
.Ed
|
.Ed
|
||||||
.Pp
|
|
||||||
Set the timestamp of drive
|
|
||||||
.Pa sa0
|
|
||||||
using a
|
|
||||||
.Xr strptime 3
|
|
||||||
format string followed by a time string
|
|
||||||
that was created using this format string.
|
|
||||||
.Sh SEE ALSO
|
.Sh SEE ALSO
|
||||||
.Xr cam 3 ,
|
.Xr cam 3 ,
|
||||||
.Xr cam_cdbparse 3 ,
|
.Xr cam_cdbparse 3 ,
|
||||||
|
|||||||
Reference in New Issue
Block a user