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===== Veritas Voulme Manager Tips (VXVM)=====
==== Calculating Free Space ====
To calculate the free space, the following can be used:


      vxdg free - length shown is free space in 512 byte blocks

To find out the total free space in Kb, the following awk statement could be used:

      vxdg free | awk ' $6 ~ /^[0-9]/ { result += $6 } \ END { { answer = ( result * 512) / 1024 } print answer }'

Alternatively use: vxassist maxsize

      vxassist maxsize layout=stripe - will give the maximum space available to create a stripe.


==== Wiping a Volume ====
To wipe a volume or convert a filesystem to a raw partition, do the following:

   1. vxvol stop volume
   2. vxmend fix empty volume
   3. vxvol init zero volume

==== Removing a Volume (and plexes and subdisks) ====

  vxedit -r rm volume

==== Finding VXVM minor numbers ====

   ls -IL /dev/vx/dsk/*dg/* | grep minor

==== VXVM relayout ====

   vxassist -g dg-name relayout volumename layout=stripe stripeunit=512k ncol=2 alloc=disk1,disk2,etc

==== VXVM resize ====

   vxresize -b -F vxfs -g dg-name -x volumename newsize
   e.g. vxresize -g DG -F vxfs volume +25G vxdevicename
  
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