relem man page on DigitalUNIX

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RELEM(8)							      RELEM(8)

NAME
       relem - read element status

SYNOPSIS
       relem [ -a b.t.l ] [ -fvtb ] [ -m {0|1|2} ] [ -r eladdr.nel ] [ -l ]

DESCRIPTION
       The relem program will send a READ ELEMENT STATUS command to all chang‐
       ers, or (with the -a option) to the named device.

SIMPLE OPTIONS
       -a b.t.l
	      Selects a specific ordinal SCSI address, where b is the  logical
	      SCSI  bus,  t is the SCSI target, and l is the SCSI logical unit
	      number (LUN) on that target. See libscsi(8).

       -f     generates full output (somewhat verbose).

       -v     generates very verbose output.

       -t     causes volume tags, if present, to be printed.

       -b     causes the returned element status data to be dumped as hexadec‐
	      imal codes rather than interpreted.

       -l     Performs a complete LUN search for all SCSI adapters in the sys‐
	      tem when performing Autodetection.   This argument  is  accepted
	      on  all  systems, but does not have any effect on HP-UX systems.
	      Due to the method used to scan for available  devices  on	 HP-UX
	      systems, all accessible devices are shown, and the -l option has
	      no additional effect.  On all other systems, checking starts  at
	      LUN  0 for SCSI devices.	The first empty LUN found will end the
	      search for a given target ID.  With the -l option, LUNS  on  all
	      target  IDs  for	all  SCSI busses in the system are checked for
	      jukeboxes.  This can take a very long time and  should  only  be
	      used  when  necessary.  For example, a Fibre Channel adapter can
	      support 126 target IDs, each of which may have 80 or more	 LUNs.
	      Checking	all  LUNs on this single adapter may take over 10 min‐
	      utes.

METHOD OPTIONS
       -m 0   all element status data is fetched in one call

       -m 1   element status data is fetched per element type (e.g., all drive
	      elements are read at once, then all slot elements, etc.)

       -m 2   element  data  is	 fetched  per  element	(which	is the default
	      method)

       The SCSI specification allows each of the previous methods of  fetching
       element data.

       Note: some changers have defects with respect to fetching element data.
       For example, one changer may be accurate when reporting all elements of
       a  particular  type (using method -m 1), but return only zeros if asked
       for all elements at once (using method -m 2).

RANGE OPTIONS
       -r     eladdr.nel is used to read a range of addresses, where eladdr is
	      the  starting  decimal address (in the particular changer's num‐
	      bering scheme) of the element to start from, and nel is the num‐
	      ber of elements of status to read.  Use changers to get the par‐
	      ticular addresses used by your changer.

SEE ALSO
       libscsi (8)

NetWorker 7.3.2			  Aug 23, 06			      RELEM(8)
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