Max Physical extents

[Mark Huff II]

HELP!!!!

I have reached the max(I Think) Physical extents 65535 at 16 mb which brings me at just a little over 1 tb I need to increase this to 3.5 tb on one Physical volume -- one logical volume.

Please advise....

[Patrick Wallek]

Sounds like you will need to increase your PE Size to 64 MB or larger. 64MB would give you about 4GB with 65535 extents.

Remember that you have to recreate the VG from scratch to change PE Size value.

[Mark Huff II]

So there is no-way to rebuild the volume with a new extent size?

[Patrick Wallek]

OOPS!!! Correction: My last sentence should read 64MB and 65535 extents will give you about 4TB available.

[James R. Ferguson]

Hi Mark:

The maximum number of physical extents is 65,535 as governed by 'max_pe' for 'vgcreate.

The maxiumum extent size is 256MB as governed by 'pe_size' during 'vgcreate'.

On 11.0, the maximum filesystem size is limited to 1TB. On 11.11 using version-3 or version-4 JFS you create a filesystem of 2TB, maximum.

Regards!

...JRF...

[Patrick Wallek]

Nope. Sorry.

The values Max PE per PV, PE Size, etc. are set at VG creation time. Once set, they can't be changed other than by recreating the VG.

[Mark Huff II]

Thanks for the info guys!!!!!

:(