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NetBSD 6.1.5 - man page for bioctl (netbsd section 8)

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BIOCTL(8)			   BSD System Manager's Manual				BIOCTL(8)

NAME
     bioctl -- RAID management interface

SYNOPSIS
     bioctl device command [arg [...]]

DESCRIPTION
     RAID device drivers which support management functionality can register their services with
     the bio(4) driver.  bioctl then can be used to manage the RAID controller's properties.

COMMANDS
     The following commands are supported:

     show [disks | volumes]
			 Without any argument by default bioctl will show information about all
			 volumes and the logical disks used on them.  If disks is specified, only
			 information about physical disks will be shown.  If volumes is speci-
			 fied, only information about the volumes will be shown.

     alarm [disable | enable | silence | test]
			 Control the RAID card's alarm functionality, if supported.  By default
			 if no argument is specified, its current state will be shown.	Option-
			 ally the disable, enable, silence, or test arguments may be specified to
			 enable, disable, silence, or test the RAID card's alarm.

     blink start channel:target.lun | stop channel:target.lun
			 Instruct the device at channel:target.lun to start or cease blinking, if
			 there's ses(4) support in the enclosure.

     hotspare add channel:target.lun | remove channel:target.lun
			 Create or remove a hot-spare drive at location channel:target.lun.

     passthru add DISKID channel:target.lun | remove channel:target.lun
			 Create or remove a pass-through device.  The DISKID argument specifies
			 the disk that will be used for the new device, and it will be created at
			 the location channel:target.lun.  NOTE: Removing a pass-through device
			 that has a mounted filesystem will lead to undefined behaviour.

     check start VOLID | stop VOLID
			 Start or stop consistency volume check in the volume with index VOLID.
			 NOTE: Not many RAID controllers support this feature.

     create volume VOLID DISKIDs [SIZE] STRIPE RAID_LEVEL channel:target.lun
			 Create a volume at index VOLID.  The DISKIDs argument will specify the
			 first and last disk, i.e.: 0-3 will use the disks 0, 1, 2, and 3.  The
			 SIZE argument is optional and may be specified if not all available disk
			 space is wanted (also dependent of the RAID_LEVEL).  The volume will
			 have a stripe size defined in the STRIPE argument and it will be located
			 at channel:target.lun.

     remove volume VOLID channel:target.lun
			 Remove a volume at index VOLID and located at channel:target.lun.  NOTE:
			 Removing a RAID volume that has a mounted filesystem will lead to unde-
			 fined behaviour.

EXAMPLES
     The following command, executed from the command line, shows the status of the volumes and
     its logical disks on the RAID controller:

     $ bioctl arcmsr0 show
     Volume Status	 Size	      Device/Label   RAID Level Stripe
     =================================================================
	  0 Building	 468G  sd0 ARC-1210-VOL#00	 RAID 6  128KB	0% done
	0:0 Online	 234G	      0:0.0 noencl <WDC WD2500YS-01SHB1 20.06C06>
	0:1 Online	 234G	      0:1.0 noencl <WDC WD2500YS-01SHB1 20.06C06>
	0:2 Online	 234G	      0:2.0 noencl <WDC WD2500YS-01SHB1 20.06C06>
	0:3 Online	 234G	      0:3.0 noencl <WDC WD2500YS-01SHB1 20.06C06>

     To create a RAID 5 volume on the SCSI 0:15.0 location on the disks 0, 1, 2, and 3, with
     stripe size of 64Kb on the first volume ID, using all available free space on the disks:

	   $ bioctl arcmsr0 create volume 0 0-3 64 5 0:15.0

     To remove the volume 0 previously created at the SCSI 0:15.0 location:

	   $ bioctl arcmsr0 remove volume 0 0:15.0

SEE ALSO
     arcmsr(4), bio(4), cac(4), ciss(4), mfi(4)

HISTORY
     The bioctl command first appeared in OpenBSD 3.8, it was rewritten for NetBSD 5.0.

AUTHORS
     The bioctl interface was written by Marco Peereboom <marco@openbsd.org> and was rewritten
     with multiple features by
     Juan Romero Pardines <xtraeme@NetBSD.org>.

BSD					  March 16, 2008				      BSD
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