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Diffstat (limited to 'sbin/camcontrol/camcontrol.8')
| -rw-r--r-- | sbin/camcontrol/camcontrol.8 | 103 |
1 files changed, 102 insertions, 1 deletions
diff --git a/sbin/camcontrol/camcontrol.8 b/sbin/camcontrol/camcontrol.8 index 7a13aa4..df0b3e7 100644 --- a/sbin/camcontrol/camcontrol.8 +++ b/sbin/camcontrol/camcontrol.8 @@ -27,7 +27,7 @@ .\" .\" $FreeBSD$ .\" -.Dd June 4, 2012 +.Dd April 24, 2013 .Dt CAMCONTROL 8 .Os .Sh NAME @@ -243,6 +243,18 @@ .Op Fl U Ar user|master .Op Fl y .Nm +.Ic hpa +.Op device id +.Op generic args +.Op Fl f +.Op Fl l +.Op Fl P +.Op Fl p Ar pwd +.Op Fl q +.Op Fl s Ar max_sectors +.Op Fl U Ar pwd +.Op Fl y +.Nm .Ic help .Sh DESCRIPTION The @@ -1205,6 +1217,73 @@ password for the specified user the command will fail. .Pp The password in all cases is limited to 32 characters, longer passwords will fail. +.It Ic hpa +Update or report Host Protected Area details. +By default +.Nm +will print out the HPA support and associated settings of the device. +The +.Ic hpa +command takes several optional arguments: +.Bl -tag -width 0n +.It Fl f +.Pp +Freeze the HPA configuration of the specified device. +.Pp +After command completion any other commands that update the HPA configuration +shall be command aborted. +Frozen mode is disabled by power-off or hardware reset. +.It Fl l +.Pp +Lock the HPA configuration of the device until a successful call to unlock or +the next power-on reset occurs. +.It Fl P +.Pp +Make the HPA max sectors persist across power-on reset or a hardware reset. +This must be used in combination with +.Fl s Ar max_sectors +. +.It Fl p Ar pwd +.Pp +Set the HPA configuration password required for unlock calls. +.It Fl q +.Pp +Be quiet, do not print any status messages. +This option will not disable the questions. +To disable questions, use the +.Fl y +argument, below. +.It Fl s Ar max_sectors +.Pp +Configures the maximum user accessible sectors of the device. +This will change the number of sectors the device reports. +.Pp +.Em WARNING! WARNING! WARNING! +.Pp +Changing the max sectors of a device using this option will make the data on +the device beyond the specified value inaccessible. +.Pp +Only one successful +.Fl s Ar max_sectors +call can be made without a power-on reset or a hardware reset of the device. +.It Fl U Ar pwd +.Pp +Unlock the HPA configuration of the specified device using the given password. +If the password specified doesn't match the password configured via +.Fl p Ar pwd +the command will fail. +.Pp +After 5 failed unlock calls, due to password miss-match, the device will refuse +additional unlock calls until after a power-on reset. +.It Fl y +.Pp +Confirm yes to dangerous options such as +.Fl e +without prompting for confirmation +.Pp +.El +The password for all HPA commands is limited to 32 characters, longer passwords +will fail. .It Ic fwdownload Program firmware of the named SCSI device using the image file provided. .Pp @@ -1397,6 +1476,28 @@ data from the device, so backup your data before using! .Pp This command can be used used against an SSD drive to restoring it to factory default write performance. +.Bd -literal -offset indent +camcontrol hpa ada0 +.Ed +.Pp +Report HPA support and settings for ada0 (also reported via +identify). +.Bd -literal -offset indent +camcontrol hpa ada0 -s 10240 +.Ed +.Pp +Enables HPA on ada0 setting the maximum reported sectors to 10240. +.Pp +.Em WARNING! WARNING! WARNING! +.Pp +This will +.Em PREVENT ACCESS +to all data on the device beyond this limit until HPA is disabled by setting +HPA to native max sectors of the device, which can only be done after a +power-on or hardware reset! +.Pp +.Em DO NOT +use this on a device which has an active filesystem! .Sh SEE ALSO .Xr cam 3 , .Xr cam_cdbparse 3 , |
