error when adding EMC volume

[Jim Smith]

Hi everyone,

I get the following error when adding a new EMC volume to an existing volume group. Anyone know what it means ?

vgextend: Attempt to mix incompatible EMC Symmetrix disk types failed. Volume group contains EMC BCV disk, but physical volume /dev/dsk/c15t4d0 is a standard disk. Please consult your EMC Symmetrix documentation, if applicable.

[Stefan Farrelly · Accepted solution]

You have 2 types of EMC disks on your system. Standard disks (which are only visible to your server) and BCV (Business continuity volume) which are visible to > one server. BCV's are for moving large amounts of data easily - you copy data on it and with a few EMC commands you can pull the BCV onto another server and mount it. The volume group youre trying to add an EMC volume to has BCV volumes in it and you can only add more BCV volumes to it, not a standard EMC volume (non shareable) which you are trying to do. Basically volume groups must be kept separate with BCV's or standard EMC volumes, they cant contain both types.

[MANOJ SRIVASTAVA]

Hi Jim

Also you can run command like symdev list to know what type of the disk correspond to that PATH , even thought the BCV and the Physical disks have same sizes this will list both the types.

Manoj Srivastava