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IPRCONFIG(8)							  IPRCONFIG(8)

NAME
       iprconfig - IBM Power RAID storage adapter configuration/recovery util‐
       ity

SYNOPSIS
       iprconfig [-e editor] [-k dir] [-c command]

       iprconfig --version --debug --force

DESCRIPTION
       iprconfig is used to configure IBM Power RAID storage adapters, display
       information  about them, and to perform adapter and disk unit recovery.
       The menu options are:

       1. Display hardware status.
       This option can be used to display various  information	regarding  the
       IBM  Power RAID adapters attached to the system and the disk units con‐
       trolled by them. For each adapter and disk unit, their /dev name, phys‐
       ical location, description, vendor/product ID, and hardware status will
       be available. Beside each resource is an OPT field.  By	entering  a  1
       beside  any  resource,  detailed information about that resource can be
       obtained. For an	 adapter  resource,  this  will	 display  the  adapter
       firmware version and the physical location amongst other things.

       2. Work with Disk Arrays
       This  option  will  present a second menu containing disk array related
       commands.

       Display disk array status is used to display the status of disk	arrays
       on the system.

       Create a disk array is used to create a disk array.

       Delete  a  disk	array  is  used	 to delete disk arrays. Selecting this
       option will provide you with  a	list  of  disk	arrays	which  can  be
       deleted.

       Add  a  device  to  a  disk array is used to include devices of similar
       capacity into an existing disk array. This function is  currently  only
       supported for RAID 5 and RAID 6 disk arrays.

       Format  device  for  advanced  function	is used to format disks to 522
       bytes/sector so that they may be used in a disk array. Only disks which
       are  not	 formatted for advanced function or are formatted for advanced
       function but are not known to be zeroed will be available for selection
       for this function.

       Format  device  for  JBOD function (512) is used to format disks to 512
       bytes/sector so that they may be used as standalone disks.  Only	 disks
       which  are  not	formatted  for JBOD function or are formatted for JBOD
       function and are in the Format Required state  will  be	available  for
       this function.

       Work  with  hot spares is used to create a hot spare which designates a
       device as a dedicated hot spare.	 It is also used to delete a hot spare
       which unconfigures a previously configured hot spare.

       Work  with  asymmetric  access  is  used to select which path of a disk
       array will be the primary path in a dual controller environment.	 Asym‐
       metric  Access  must be enabled on the adapter first.  Not all adapters
       support asymmetric access and adapters  that  do	 provide  support  may
       require updated microcode.

       Force  RAID Consistency Check is used to force a consistency check on a
       RAID array. All ipr adapters continually perform background consistency
       checking	 when  idle.  This  option  can be used to force a consistency
       check to be performed.

       Migrate disk array protection is used to	 change	 the  RAID  protection
       level  for  an  array  to another supported level.  In some cases, this
       will require adding more disks to the array.   In  other	 cases,	 disks
       will be freed.

       3.  Work	 with disk unit recovery is used to perform the following disk
       unit recovery actions:

       Concurrent add device is used to concurrently add a new disk to a  run‐
       ning  system.  This  feature is only supported with SES (SCSI Enclosure
       Services) packaging.

       Concurrent remove device is used to concurrently remove a disk  from  a
       running	system.	  This feature is only supported with SES (SCSI Enclo‐
       sure Services) packaging.

       Initialize and format disk unit is used to issue a SCSI format  command
       to  attached  devices. A format unit command has special meaning to the
       adapter and is used as a service action for certain  error  conditions.
       Formatting a disk unit will lose all data on that drive. If the disk is
       attached to an ipr adapter that does not support RAID, the  drive  will
       be  formatted  to  512 bytes/sector.  If the disk is attached to an ipr
       RAID adapter, the block size will not be changed. To change  the	 block
       size, use the format menu options under the disk arrays menu.

       Reclaim	IOA  cache  storage  is used to repair cache error conditions.
       ATTENTION: Use this option with care. This is used to discard data from
       the  cache  and	may result in data loss. This option is designed to be
       used by authorized IBM hardware customer engineers.

       Rebuild disk unit data is generally used following  concurrent  mainte‐
       nance.  Select this option after a failing array member device has been
       replaced to reconstruct the device as an active array member.

       Work with resources containing cache battery packs is used  to  display
       information  regarding  rechargeable  cache  battery packs and to force
       rechargeable cache battery packs into an error state so that  they  can
       be replaced prior to failure.  ATTENTION: Once an error has been forced
       on a rechargeable cache battery pack write  caching  will  be  disabled
       until the battery pack is replaced.

       4. Work with SCSI bus configuration is used to change configurable SCSI
       bus attributes, such as maximum SCSI bus speed, SCSI initiator ID, etc.

       5. Work with driver configuration is used to change driver configurable
       attributes, such as log_level.

       6.  Work	 with  disk  configuration is used to change configurable disk
       attributes, such as queue depth.

       7. Work with adapter  configuration  is	used  to  change  configurable
       adapter	attributes,  such as dual adapter settings.  Refer to the fol‐
       lowing command line options: primary, secondary, query-ha-mode, set-ha-
       mode,  set-ioa-asymmetric-access	 and  set-array-asymmetric-access  for
       more information regarding these settings.

       8. Download microcode is used to download microcode to ipr adapters and
       attached SCSI disks.

       9.  Analyze  Log	 is  an option available to analyze /var/log/messages*
       files. By default it will use vi as the editor to open the concatenated
       error  log  files.  This can be changed by using option 6 on the Kernel
       Messages Log menu. Selecting option 1 on the Kernel Messages  Log  menu
       will  display  only  the	 most  recent  errors logged by the ipr device
       driver and may be useful to filter out some of the  clutter.  Option  2
       will  display  all  recorded  errors  logged  by the ipr device driver.
       Option 3 will display all kernel messages. Option 4 will display errors
       logged by the iprconfig utility. This may be useful for debugging prob‐
       lems. Option 5 can be used to change where the tool looks to  find  the
       kernel messages files. The default is to look in /var/log.

OPTIONS
       -e editor
	      Default editor for viewing error logs. The default editor is vi,
	      but can be changed with this parameter.

       -k directory
	      Kernel messages root directory. Root directory to look for  ker‐
	      nel messages.  Default is /var/log.

       -c command
	      Command line, non-interactive commands. Currently supported com‐
	      mands include:

	      show-config
		     Show ipr configuration.

	      show-alt-config
		     Show alternate ipr configuration information.

	      show-ioas
		     Show all ipr adapters.

	      show-arrays
		     Show all ipr arrays.

	      show-battery-info [IOA]
		     Show cache battery information for specified  IOA.	 Exam‐
		     ple:
		     iprconfig -c show-battery-info sg5

	      show-details [device]
		     Show device details for specified device. Example:
		     iprconfig -c show-details sda

	      show-hot-spares
		     Show all configured hot spares.

	      show-af-disks
		     Show  disks  formatted for Advanced Function that are not
		     configured in an array or as a hot spare.

	      show-all-af-disks
		     Show all disks formatted for Advanced Function

	      show-jbod-disks
		     Show all disks formatted for JBOD Function.

	      status [device]
		     Show the status of the specified device. This is the same
		     status  as	 which shows up in the last column of the Dis‐
		     play hardware status menu. Can specify either a  /dev/sdX
		     name or a /dev/sgX name. Example:
		     iprconfig -c status /dev/sda

	      alt-status [device]
		     Show the status of the specified device. This is the same
		     status as above with the exception of when a long running
		     command  is  executing  to	 the device, in which case the
		     percent complete for the long running command is printed.

	      query-raid-create [IOA]
		     Show all devices attached to the specified IOA  that  are
		     candidates for being used in a RAID array. Example:
		     iprconfig -c query-raid-create sg5

	      query-raid-delete [IOA]
		     Show  all	RAID arrays attached to the specified IOA that
		     can be deleted.
		     iprconfig -c query-raid-delete sg5

	      query-hot-spare-create [IOA]
		     Show all devices attached to the specified IOA  that  are
		     candidates for being hot spares.

	      query-hot-spare-delete [IOA]
		     Show  all	hot  spares attached to the specified IOA that
		     can be deleted.

	      query-raid-consistency-check
		     Show all RAID arrays that are candidates for a RAID  con‐
		     sistency check.

	      query-format-for-jbod
		     Show all disks that can be reformatted for JBOD function.

	      query-reclaim
		     Show all IOAs that may need a reclaim cache storage.

	      query-arrays-raid-include
		     Show all RAID arrays that can have disks included in them
		     to increase their capacity.

	      query-devices-raid-include [array]
		     Show all disks that can be added to the  specified	 array
		     to increase its capacity.

	      query-supported-raid-levels [IOA]
		     Show all RAID levels supported by the specified adapter.

	      query-include-allowed [IOA] [raid level]
		     Some  RAID	 levels	 allow	for adding additional disks to
		     existing disk arrays to increase their  capacity.	Prints
		     "yes" to stdout if the specified RAID level supports this
		     function, else prints "no".

	      query-max-devices-in-array [IOA] [raid level]
		     Print the maximum number of devices  allowed  in  a  RAID
		     array  of the specified RAID level for the specified RAID
		     adapter.

	      query-min-devices-in-array [IOA] [raid level]
		     Print the minimum number of devices  allowed  in  a  RAID
		     array  of the specified RAID level for the specified RAID
		     adapter.

	      query-min-mult-in-array [IOA] [raid level]
		     Print the minimum multiple of devices required in a  RAID
		     array  of the specified RAID level for the specified RAID
		     adapter.

	      query-supp-stripe-sizes [IOA] [raid level]
		     Print all	supported  stripe  sizes  supported  for  RAID
		     arrays  of the specified RAID level on the specified RAID
		     adapter. Stripe sizes are printed in units of KB.

	      query-recommended-stripe-size [IOA] [raid level]
		     Print the default/recommended stripe size for RAID arrays
		     of	 the  specified	 RAID  level  on  the  specified  RAID
		     adapter. Stripe size is in units of KB.

	      query-recovery-format
		     Show all disks that can be formatted for  error  recovery
		     purposes.

	      query-raid-rebuild
		     Show all disks in RAID arrays that can be rebuilt.

	      query-format-for-raid
		     Show  all	disks that can be formatted such that they can
		     be used in a RAID array or as a hot spare.

	      query-ucode-level [device]
		     Show the microcode level that is currently loaded on  the
		     specified	device.	 Note: The device specified may be the
		     sg device associated with an IOA, in which case the IOA's
		     microcode level will be shown.

	      query-format-timeout [device]
		     Show  the	current format timeout to be used when format‐
		     ting the specified disk.  This value is  only  applicable
		     when the device is currently in Advanced Function format.

	      query-qdepth [device]
		     Show  the queue depth currently being used for the speci‐
		     fied disk.

	      query-tcq-enable [device]
		     Print 1 to stdout if tagged queuing is  enabled  for  the
		     specified device, else print 0 to stdout.

	      query-log-level [IOA]
		     Print  the current log level being used for the specified
		     IOA. Can be a number from 0 to n.

	      query-add-device
		     Show all empty disk slots that can have  a	 disk  concur‐
		     rently added.

	      query-remove-device
		     Show  all disk slots which are either empty or have disks
		     in them which can be concurrently removed from  the  run‐
		     ning system.

	      query-initiator-id [IOA] [busno]
		     Show  the	current	 SCSI initiator ID used by the IOA for
		     the specified SCSI bus.

	      query-bus-speed [IOA] [busno]
		     Show the current maximum SCSI bus speed  allowed  on  the
		     specified SCSI bus.

	      query-bus-width [IOA] [busno]
		     Show  the current SCSI bus width in units of bits for the
		     specified SCSI bus.

	      query-path-status [IOA]
		     Show the current dual path	 state	for  the  SAS  devices
		     attached specified IOA.

	      query-path-details [device]
		     Show  the current dual path details for the specified SAS
		     device.

	      query-arrays-raid-migrate
		     Show the arrays that can be migrated to a different  pro‐
		     tection level.

	      query-devices-raid-migrate [array]
		     Show  the	AF  disks  that are candidates to be used in a
		     migration for a given array.

	      query-raid-levels-raid-migrate [array]
		     Show the protection levels to which the given  array  can
		     be migrated.

	      query-stripe-sizes-raid-migrate [array] [raid level]
		     Given  an	array  and  a protection level, show the valid
		     stripe sizes to which the array can be migrated.

	      query-devices-min-max-raid-migrate [array] [raid level]
		     Show the number of devices that will  be  removed	for  a
		     migration	to  a  protection  level  that	requires fewer
		     devices.  Or, show the minmum number of devices required,
		     the maximum number of devices allowed and the multiple of
		     the number of  devices  required  for  a  migration  that
		     requires more devices.

	      query-ioas-asymmetric-access
		     Show the IOAs that support asymmetric access.

	      query-arrays-asymmetric-access
		     Show  the	disk  arrays  that  are candidates for setting
		     their asymmetric access mode to  Optimized	 or  Non-Opti‐
		     mized.

	      query-ioa-asymmetric-access-mode [IOA]
		     Show  the	current	 asymmetric  access mode for the given
		     IOA.

	      query-array-asymmetric-access-mode [array]
		     Show the current asymmetric access	 mode  for  the	 given
		     disk array.

	      query-ioa-caching [IOA]
		     Show  whether  or not the user requested caching mode for
		     the given IOA is set to default or disabled.

	      raid-create [-r raid_level] [-s stripe_size_in_kb] [devices...]
		     Create a RAID array. RAID level can be any supported RAID
		     level  for	 the  given adapter, such as 0, 10, 5, 6. Cur‐
		     rently supported stripe sizes in kb include 16,  64,  and
		     256.  If  raid_level is not specified, it will default to
		     RAID 5. If stripe size is not specified, it will  default
		     to	 the  recommended  stripe  size	 for the selected RAID
		     level. Devices are specified with their full name, either
		     the /dev/sd name or the /dev/sg name is acceptable. Exam‐
		     ple array creation:
		     iprconfig -c raid-create -r 5  -s	64  /dev/sda  /dev/sdb
		     /dev/sdc
		     This  would  create a RAID 5 array with a 64k stripe size
		     using the specified devices.

	      raid-delete [RAID device]
		     Delete the	 specified  RAID  array.  Specify  either  the
		     /dev/sd  name  or	the  /dev/sg name. Only 1 array can be
		     deleted with a single command. Example:
		     iprconfig -c raid-delete /dev/sda
		     This would delete the disk array represented by /dev/sda

	      raid-include [array] [disk] ... [disk]
		     Add the specified devices to the specified disk array  to
		     increase its capacity.  Example:
		     iprconfig -c raid-include sda sg6 sg7

	      raid-migrate  -r	raid_level [-s stripe_size_in_kb] array [disk]
	      ... [disk]
		     Migrate an existing RAID array to a new  RAID  protection
		     level.   Optionally,  a new stripe size can be given.  In
		     some cases one or more new disks must be  added  for  the
		     migration to succeed.  Example:
		     iprconfig -c raid-migrate -r 10 -s 64 sda sg5 sg6

	      format-for-raid [disk] ... [disk]
		     Format  the specified disks for Advanced Function so they
		     can be used in a RAID array or as a hot spare.

	      format-for-jbod [disk] ... [disk]
		     Format the specified disks for JBOD Function so they  can
		     be used as standalone disks.

	      recovery-format [disk] ... [disk]
		     Format  the  specified disks as directed by the reference
		     guide for error recovery purposes.

	      hot-spare-create [disk]
		     Create a hot spare using the specified Advanced  Function
		     disk.

	      hot-spare-delete [disk]
		     Delete the specified hot spare.

	      disrupt-device [disk]
		     Force the specified Advanced Function device failed.

	      reclaim-cache [IOA]
		     Reclaim  the specified IOA's write cache.	ATTENTION: Use
		     this option with care. This is used to discard data  from
		     the  cache	 and  may  result in data loss. This option is
		     designed to be used by authorized IBM  hardware  customer
		     engineers.

	      reclaim-unknown-cache [IOA]
		     Reclaim the specified IOA's write cache and allow unknown
		     data loss.	 ATTENTION: Use this option with care. This is
		     used  to  discard	data from the cache and WILL result in
		     data loss. This option is designed to be used  by	autho‐
		     rized IBM hardware customer engineers.

	      raid-consistency-check [array]
		     Force  a  full  RAID  consistency	check on the specified
		     array. This command will return before the	 RAID  consis‐
		     tency  check  has	completed.  Use	 the status command to
		     check the status of the command.

	      raid-rebuild [disk]
		     Following a disk replacement for a failed disk in a  RAID
		     array, use this command to rebuild the failed disk's data
		     onto the new disk and return the disk array to the Active
		     state.

	      update-ucode [device] [microcode file]
		     Update  the  microcode  on	 the  specified device (IOA or
		     disk) with the specified microcode file.  ATTENTION: Lim‐
		     ited  checking  of the microcode image is done. Make sure
		     the specified microcode file is the correct file for  the
		     specified device.

	      set-format-timeout [disk] [timeout in hours]
		     Set  the  format  timeout	to be used when formatting the
		     specified disk.

	      set-qdepth [device] [queue depth]
		     Set the queue depth for  the  specified  device  or  disk
		     array.

	      set-tcq-enable [device] [0 = disable, 1 = enable]
		     Enable/disable  tagged command queueing for the specified
		     device.

	      set-log-level [IOA] [log level]
		     Set the error logging verbosity to use for the  specified
		     IOA.  Default is 2.

	      identify-disk  [disk]  [0	 =  turn off identify LED, 1 = turn on
	      identify LED]
		     Turn on/off the disk identify LED for the specified disk.
		     This  function  may  or may not be available depending on
		     the hardware packaging.

	      identify-slot [location] [0 = turn off identify LED, 1 = turn on
	      identify LED]
		     Turn on/off the disk identify LED for the specified loca‐
		     tion. This function may or may not be available depending
		     on the hardware packaging. Example:
		     iprconfig -c identify-slot 0000:d8:01.0/0:1:1: 1

	      remove-disk [disk] [0 = turn off identify LED, 1 = turn on iden‐
	      tify LED]
		     Turn on/off the disk remove identify LED for  the	speci‐
		     fied  device. When 1 is specified as the second argument,
		     the specified disk is set to the remove  state.  When  in
		     this  state,  the	disk may be removed. Once the disk has
		     been physically removed, iprconfig must be invoked	 again
		     with  the	second	argument  set to 0. This turns off the
		     slot identifier light and logically removes the disk from
		     the host operating system.

	      remove-slot  [location]  [0 = turn off identify LED, 1 = turn on
	      identify LED]
		     Turn on/off the disk remove identify LED for  the	speci‐
		     fied  location.  When  1 is specified as the second argu‐
		     ment, the specified location is set to the remove	state.
		     When  in  this  state,  the disk may be removed. Once the
		     disk has  been  physically	 removed,  iprconfig  must  be
		     invoked  again  with  the	second argument set to 0. This
		     turns off the slot identifier light and logically removes
		     the disk from the host operating system. Example:
		     iprconfig -c remove-slot 0000:d8:01.0/0:1:1: 1

	      add-slot	[location]  [0	=  turn	 off identify LED, 1 = turn on
	      identify LED]
		     Turn on/off the disk insert identify LED for  the	speci‐
		     fied  location.  When  1 is specified as the second argu‐
		     ment, the specified location is set to the insert	state.
		     When  in  this  state, the disk may be inserted. Once the
		     disk has been  physically	inserted,  iprconfig  must  be
		     invoked  again  with  the	second argument set to 0. This
		     turns off the slot identifier light  and  logically  adds
		     the disk to the host operating system. Example:
		     iprconfig -c add-slot 0000:d8:01.0/0:1:1: 1

	      set-initiator-id [IOA] [busno] [initiator id]
		     Set  the  IOA's  SCSI initiator ID for the specified bus.
		     Must be a value between 0 and 7  and  must	 not  conflict
		     with any other device on the SCSI bus.

	      set-bus-speed [IOA] [busno] [speed in MB/sec]
		     Set  the  maximum SCSI bus speed allowed on the specified
		     SCSI bus.

	      set-bus-width [IOA] [busno] [bus width in # bits]
		     Set the SCSI bus width to use for the specified SCSI bus.
		     Example:
		     iprconfig -c set-bus-width sg5 0 16

	      primary [IOA]
		     Set the adapter as the preferred primary adapter. This is
		     used in dual initiator RAID  configurations  to  indicate
		     which  adapter should be the primary adapter. The primary
		     adapter should be the adapter receiving the  majority  of
		     the I/O. Example:
		     iprconfig -c primary sg5

	      secondary [IOA]
		     Set  the adapter to indicate it is not the preferred pri‐
		     mary adapter. See the notes for the preferred primary for
		     additional information. Example:
		     iprconfig -c secondary sg5

	      set-all-primary
		     Set  all  attached	 ipr adapters as the preferred primary
		     adapter. This can be used when running a  dual  initiator
		     RAID  HA  configuration.	This command can be run on the
		     primary system to quickly enable  the  preferred  primary
		     mode    for    all	   attached    adapters.    Refer   to
		     /etc/ha.d/resource.d/iprha for an	example	 of  how  this
		     might be used. Example:
		     iprconfig -c set-all-primary

	      set-all-secondary
		     Set  all  attached	 ipr adapters to indicate they are not
		     the preferred primary adapter. Example:
		     iprconfig -c set-all-secondary

	      query-ha-mode [IOA]
		     When an adapter is configured in a highly available  dual
		     adapter configuration, it may be able to be configured in
		     one of two ways. The default mode is Normal.   This  mode
		     is	 used  for  all	 SCSI  adapters and many SAS adapters.
		     Some SAS adapters also support a JBOD dual	 adapter  con‐
		     figuration. This mode is to be used when the dual adapter
		     configuration is to consist of  JBOD  disks  rather  than
		     RAID  arrays. If the adapter is NOT going to be used in a
		     dual adapter configuration, this mode MUST be set to Nor‐
		     mal.  Example:
		     iprconfig -c query-ha-mode sg5

	      set-ha-mode [IOA] [Normal | RAID]
		     Used  to  set  the high-availability mode of the adapter.
		     Refer to the query-ha-mode command for  more  information
		     regarding these settings. Example:
		     iprconfig -c set-ha-mode sg5 Normal

	      set-array-asymmetric-access-mode	[array] [Optimized | Non-Opti‐
	      mized]
		     Used to set the asymmetric access mode of the disk array.
		     Example:
		     iprconfig	-c  set-array-asymmetric-access-mode sda Opti‐
		     mized

	      set-ioa-asymmetric-access-mode [IOA] [Enabled | Disabled]
		     Used to set the asymmetric access mode of the IOA.
		     Example:
		     iprconfig -c set-ioa-asymmetric-access-mode sg5 Enabled

	      set-ioa-caching [IOA] [Default | Disabled]
		     Used to set the requested caching mode of the IOA.
		     Example:
		     iprconfig -c set-ioa-caching sg5 Disabled

	      get-live-dump [IOA]
		     Dump the IOA's implementation  unique  critical  informa‐
		     tion. The dump data will be saved in the /var/log/ direc‐
		     tory  with	 the  pattern  ipr-CCIN-PCI_ADDRESS-dump-TIME‐
		     STAMP.
		     Example:
		     iprconfig -c get-live-dump sg5

       --version
	      Print version number of iprconfig

       --debug
	      Enable  additional  error	 logging. Enabling this will result in
	      additional errors logging to /var/log/messages.

       --force
	      Disable safety checks. Use this  to  disable  safety  checks  in
	      iprconfig.   This	 will allow you to format devices that are not
	      at the appropriate code levels. Only  use	 this  option  if  you
	      really know what you are doing.

AUTHOR
       Brian King <brking@us.ibm.com>

NOTES
       Notes on using under iSeries 5250 telnet

       Only  use  this	utility	 across	 5250  telnet  when there are no other
       options available to you. Since there may be occasions when 5250 telnet
       is your only option to access your iSeries Linux console, every attempt
       has been made to make this utility usable under 5250 telnet. By follow‐
       ing  a  few  guidelines,	 you can make your 5250 telnet experience more
       productive and much less frustrating.

       1. First of all, it will be helpful to know how	the  keys  are	mapped
       under  5250 telnet. From the 5250 telnet window, hit ESC. This will get
       you to the Send TELNET Control Functions menu. Take option 6 to display
       the  keyboard  map.  Take  note of how TAB, ESC, CTLC, and SENDWOCR are
       bound. They will be useful in the future.

       2. When selecting menu options, enter the menu number, followed by  the
       enter key, same as usual.

       3. When typing single character commands (eg. r=Refresh), type the sin‐
       gle character followed by the SENDWOCR key (F11 by default).

       4. When on a device/array/IOA selection screen (eg. Display  Disk  Unit
       Details),  do  NOT  use the arrow keys to navigate. Instead use the TAB
       key (F7 by default) to navigate these screens.

       5. Beware of the backspace and delete keys. As a rule do NOT use them.

       6. When editing the root kernel message log directory  or  the  default
       editor,	you  may  use the arrow keys, but not the backspace and delete
       keys. Use the space bar to remove already typed characters.

				  August 2009			  IPRCONFIG(8)
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