NAME

sptab − dynamic information for spanned disk configuration

DESCRIPTION

The file /etc/sptab contains descriptive information about spanned disks.  The spconfig(8) command reads /etc/sptab when configuring spanned disks dynamically. This command would normally reside within /etc/rc.

The information you place in this file has the general form

spdevc ( (major,minor) (major,minor),...,(major,minor) )

where

dev is any of the available sp devices, 0 − 3. 

major is the number of the major device. 

minor is the number of the minor device. 

A spanned disk device is described by the spanned disk device number, 0−3, followed by a list of the (major,minor) device numbers of the partitions that create it.  Disk partitions are established by the disk controller, so your only choice is which partitions you wish to combine into one spanned disk device.  An example of a valid entry in /etc/sptab is

#local configuration for two Maxtor 1140 drives
#
#sp0c = ( sd0g, sd1f )
#
sp0c ( (1,6),(1,13) )
#
#sp1c = sd1a, sd1d, sd1e
#
sp1c ( (1,8),(1,11),(1,12) )

which specifies that spanned disk 0 consists of the partitions sd0g and sd1f, and spanned disk 1 consists of the partitions sd1a, sd1d, and sd1e (see sp(4I)).

A comment line in /etc/sptab begins with the "#" character and is ignored by spconfig(8).

FILES

/etc/sptab

SEE ALSO

sp(4I) spconfig(8)

5 BSD  —  1 September 1986