HP-UX Reference (11i v2 07/12) - 1M System Administration Commands N-Z (vol 4)

pvchange(1M) pvchange(1M)

EXAMPLES

Prohibit the allocation of additional physical extents to a physical volume:

pvchange -x n /dev/dsk/c0t0d0

Allow the allocation of additional physical extents to a physical volume:

pvchange -x y /dev/dsk/c0t0d0

Only switch paths when the current path is unavailable. Do not switch back to a prior path which had

failed and has recovered, when the current path works:

pvchange -S n /dev/dsk/c0t0d0

Switch paths whenever a better path becomes available again after a failure, even if the current path is

ﬁne:

pvchange -S y /dev/dsk/c0t0d0

Manually switch a physical volume to use another controller path:

pvchange -s /dev/dsk/c2t0d2

Set the IO_timeout value for a physical volume to 60 seconds:

pvchange -t 60 /dev/dsk/c2t0d2

Set the IO_timeout value for a physical volume to zero (0) to use the driver default:

pvchange -t 0 /dev/dsk/c2t0d2

Change the (empty) physical volume to become a stand-by spare for the volume group:

pvchange -z y /dev/dsk/c2t0d2

Change the (active or stand-by) spare physical volume to become a regular member of the volume group:

pvchange -z n /dev/dsk/c2t0d2

Enable LVM’s proactive polling of alternate links

pvchange -p y /dev/dsk/c2t0d2

Disable LVM’s proactive polling of alternate links

pvchange -p n /dev/dsk/c2t0d2

Detach a path to a PV

pvchange -a n /dev/dsk/c2t0d2

Detach all the paths to a PV

pvchange -a N /dev/dsk/c2t0d2

Attach a path to a PV.

pvchange -a y /dev/dsk/c2t0d2

The vgchange(1M) command may be used to attach all PVs in the volume group and resume automatically

attaching failed PVs.

vgchange -a y /dev/vg_work

WARNINGS

The -p proactivepolling option requires the kernel to be updated to support this functionality.