maximum size of a VG?

[André Marcelo Dias]

It would like to know the maximum size of a VG?

Therefore it would like to more than create a VG with 150 GB, possible ?

[John Poff]

Hello,

I don't know the maximum size for a VG, but I know you can easily create one that is 150 Gb, if you have enough disks. I have a VG here that is 750 Gb. It works fine. It took 87 PVs to do it, but it works.

JP

[James R. Ferguson · Accepted solution]

Hi:

Yes. In fact the largest volume group could be 65,535 extents *times* 256MB per extent or about 16,776,960 MB.

See the man pages for 'vgcreate' and look at 'max-pe' and 'pe-size'.

...JRF...

[Michael Tully]

Hi,

The maximum number of physical volumes
(or logical disk drives) is 255. The LUN
or logical unit size depends on your
hardware and how it it split up, so
creating a 150Gb logical volume is very
achievable. Bear in mind that the larger
the volume the harder it is usually to
manage, except when it is 'raw' and is
used exclusively for database.

My 2 cents worth.
Michael

[Shahul]

Hi

I havn't heared about the mximum size of a VG. But one thing I can say that it matters howmany Number of PEs U mentioned while creating a VG.

#vgcreate -e 5000 /dev/vg01 devicefile

In this VG U can extend up to 5000*size of a PE.

Shahul