VERITAS Volume Manager 3.5 Installation Guide (September 2004)

Getting Started with VxVM

Adding Swap Space Using VxVM Volumes

Chapter 5

Adding Swap Space Using VxVM Volumes

The HP System Administration Manager (SAM) currently does not have the capability to add swap

space using VxVM volumes. You need to use the VxVM CLI; for example:

Step 1. Run the command:

# /etc/vx/bin/vxdisksetup -i device

Step 2. If this command comes back with:

vxvm:vxdisk: ERROR: Device device is already in use by LVM.

then, go to Step 3; otherwise, go to Step 4.

Step 3. Run the following commands (it is necessary to run pvcreate first, since /etc/lvmtab may not exist):

# pvcreate -f /dev/rdsk/ device

# pvremove /dev/rdsk/ device

# vxdctl enable

# /etc/vx/bin/vxdisksetup -i device

Step 4. Run the following commands:

# vxdg adddisk swapdisk=device

# vxprint swapdisk

Disk group: rootdg

TY NAME ASSOC KSTATE LENGTH PLOFFS STATE TUTIL0 PUTIL0

dm swapdisk c2t6d0 - 4191378 - - - -

Step 5. Run the commands:

# vxassist make swapvol2 4191378 swapdisk

# echo "/dev/vx/dsk/rootdg/swapvol2 ... swap pri=1 0 0" >>/etc/fstab

Step 6. Use SAM to:

• Increase the maxswapchunks tunable as required by swapon.

• Build a the kernel.

• Reboot your system.