68 Netra ft 1800 Installation Guide February 1999
Setting up the Volume Manager Environment
When you have loaded the VolumeManager software, and before you run
vxinstallto initialize it, you must configure the software to run as required on the
Netraft 1800. This involves the following:
Setting default volume creation to mirror disks by default when they arecreated
Configuring the VolumeManager to deal with stale boot disks
Configuring the VolumeManager’s recovery behavior when a physical disk fails
Enabling boot disk detection

Setting Default Volume Creation

Note – Disk mirroring in VolumeManager provides the fault tolerance for the disk
storage of the Netra ft1800. This step is essential to ensure that all disks are
mirrored.
Tomirror disks by default when they are created, enter the following:
Note – If the vxassist file already exists, resolve anydifferences between the
contents of the fileand the line mirror=yes. The resulting file must contain the line
mirror=yes.
The preceding command creates the /etc/default/vxassist file with the
required line in it. This sets the tunable parameters used by the VolumeManager
vxva GUI. (These parameters can be overriden via the command line.) See the
SunStorEdge Volume Manager documentation for full details.

Dealing with Stale Boot Disks

Toprevent the system from stopping when it encounters a stale boot plex during the
boot sequence, enter the following:
$echo "mirror=yes" > /etc/default/vxassist
#mkdir -p /etc/vx/sbin
#echo ’/sbin/uadmin 2 1 "stale"’ > /etc/vx/sbin/vxaltstale
#chmod +x /etc/vx/sbin/vxaltstale