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Re: [linux-lvm] LV size maximum

On Wed, 2001-09-05 11:53:45 +0200, svetljo <galia st-peter stw uni-erlangen de>
wrote in message <3B95F629 1050909 st-peter stw uni-erlangen de>:
> Jan-Benedict Glaw wrote:
> > The FAQ tells me (in Q9) something of 2TB, but lvextend INFOs
> > me of a maximum of 1TB. Where's the real limit? My understanding
> > is that limitation is coming from kernel to handle all data
> > in chunks of 512Bytes. Is the maximum number of 512Byte blocks
> > per device to be increased in some time?

> this is a part of the german lvm HOW-TO
> Q: Why can i not have a Logical volume biger than 256Gb ?
>  A:  This is NO absolute limit but it depends on the physical extent 
> size you configured at volume group creation time. Please use option -s 
> of the vgcreate command to give a larger physical extent size. For 
> example with a physical extent size of 524288 KB (512 MB) you are able 
> to map a logical volume of 32 Terabyte. Remember that current Linux 
> kernels are limited to 1 Terabyte.

That doesn't exactly help me. I already know that text. My
problem is that there are mentioned different maximum values
for the size:

FAQ:		2TB on 32bit machines and 512 bytes block size

(Where do you read of 1TB???)

My final question is/was: Is the limit (on kernel's side) to
be raised in some *near* future?


Jan-Benedict Glaw . jbglaw lug-owl de . +49-172-7608481

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