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Add_disk(1)							   Add_disk(1)

NAME    [Toc]    [Back]

     Add_disk -	add an optional	disk to	the system

SYNOPSIS    [Toc]    [Back]

     Add_disk [	controller_number ] [ disk_number ] [ lun_number ]

DESCRIPTION    [Toc]    [Back]

     Add_disk enables you to add an extra SCSI disk to a system	if the disk is
     on	an integral SCSI controller (i.e., it can not be used for disks
     attached to VME SCSI controllers).

     The disk_number option must be specified if you are not adding the
     default ID	of 2; similarly	the controller and lun must be specified if
     other than	0.

     The Add_disk command creates the required directory, makes	the
     appropriate device	file links, makes a new	filesystem, does the required
     mount operation, and adds the appropriate entry to	/etc/fstab.

     Appropriate checks	are made for filesystems already existing on the
     common partitions (0, 6, and 7).  If they are present, you	are asked if
     you want to proceed before	a filesystem is	made.  If the answer is	no,
     Add_disk exits.

NOTE    [Toc]    [Back]

     Older versions of this command worked only	with controller	0, and used a
     default mount point of /disk#, where # was	the SCSI ID.  This version
     uses /disk##, where the first # is	the controller and the second is the
     SCSI ID.

     Add_disk is a shell script	and can	be used	as a template to determine
     what is necessary.	 The volume header on the disk must already have been
     initialized with the fx(1M) program.

     In	the event that the mount point for the new disk	has permissions	which
     may interfere with	normal use, Add_disk may issue a warning regarding a
     too restrictive umask value or insufficient permissions on	an existing
     mount point.  Usually, a mount point directory should have	execute
     permissions set for user, group and others.  Without these	permissions
     set, a user may be	denied permission to access the	parent directory of
     the mount point after the disk is mounted.

SEE ALSO    [Toc]    [Back]

     chmod(1), umask(1), fx(1M), mkfs(1M), fstab(4).

									PPPPaaaaggggeeee 1111
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