Re: Why minor is still 8 bit?

[George Shuklin]

On 05.06.2012 04:52, H. Peter Anvin wrote:
> On 06/04/2012 11:59 AM, George Shuklin wrote:
> > Very simple sample: I'd like to create shared storage to publish volumes
> > via ISCSI. ~60Tb of drives, ~2Gb average disk size = 30k disk images.
> > Can I just create a bunch of LV and export them by iet or scst? Nope:
> > There is a serious limit for amount of active LV per host. Yes, I can
> > create filesystem, put images (as file) to that filesystem and publish
> > them back, but why FS is needed to do such simple task?
> You realize that with that many volumes, a logical volume manager *is* a
> filesystem, right?
>
> 	-hpa

Well, I have nothing against filesystem with very small 'db-like' 
footprint: no directories, no attributes, extra-large allocation block, 
very fast initialization, no random file growth (very calm metadata 
without constant updating). If someone do have that type of FS (for disk 
images storage) - why not?

Anyway, using LVM to provide logical volumes to customers seems be fine 
(at least by name). But that limitation for minor is breaking whole idea.

I don't ask 'please fix', I'm just curious why so small?

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/