pwr(8)                          (RM400 only)                         pwr(8)

NAME
     pwr - set machine-specific system attributes

SYNOPSIS
     /sbin/pwr [-a [aflag]] [-w [wvalue]] [-s [svalue]] [-p [pflag]]

DESCRIPTION
     The pwr command sets some system attributes that are required with
     systems that operate a UPS (Uninterruptible Power Supply) on a V24
     interface.

     The following attributes are supported:

     Autopoweron
          The system executes an automatic poweron after being powered off
          as a result of a shutdown caused by a power failure. This system
          attribute can only be expected if the shutdown has reached the
          point where the operating system branches to the "init 0" or
          "init 6" state.

     Wait on Poweroff
          A wait time is specified to avoid

          a) the system restarting before the UPS has interrupted supply to
             the system

          b) the system waiting endlessly for this interrupt if the UPS has
             not actually interrupted supply to the system

          During this wait time, the system pauses in an inactive state but
          is not susceptible to a power failure; when this period has
          expired, the system powers down. If you are using a 9071 type
          UPS, this wait time should be at least as long as upsdowndelay
          [see pupsd(8)].

     Save boot
          The system can be halted for a certain period of time while it is
          being booted to allow the batteries to be loaded.

     Powerfail
          The system is prepared for a shutdown as a result of a power
          outage.

OPTIONS
     -a   Sets the type of restart.

          aflag is n, if a restart is not required.

          aflag isy, if a restart is required (thus, for example, -a y).






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pwr(8)                          (RM400 only)                         pwr(8)

     -w   Sets the period of time during which the system is to wait until
          it is powered off or powered on again. The unit of time for the
          value wvalue is seconds (therefore, for example, -w 180, if a
          value of 3 minutes was set for upsdowndelay).

     -s   Sets the period of time during which the system is to wait during
          a restart (following a power outage), until the batteries have
          been loaded. The unit of time for the value svalue is minutes
          (therefore, for example, -s 10 gives the batteries a load time of
          10 minutes, before the system finishes the restart).

     -p   Indicates that a powerfail has occurred.

          pflag is n, if, for example, a powerfail no longer exists (or
          this system attribute is not to be used).

          pflag is y, if a powerfail is pending and the system behavior
          described is to be used (thus, for example, -p y).

     Caution: Only the last occurrence of the respective option is con-
     sidered (from left to right).

EXAMPLES

          pwr -a y -w 180 -s 15 -p y

     Assume there is a Power-Fail and you would like to use Autopoweron.
     The system is to wait 180 seconds and delay the restart for 15 minutes
     after power has returned to give the batteries time to recover from
     the last interrupt phase.

FILES
     /dev/pwr

SEE ALSO
     upstab(4), pupsd(8).


















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