Il 22-06-2018 22:13 Zdenek Kabelac ha scritto:
Addressing is internally limited to use lower amount of bits. Usage of memory resources, efficiency. ATM we do not recommend to use cache with more then 1.000.000 chunks for better efficiency reasons although on bigger machines bigger amount of chunks are still quite usable especially now with cache metadata format 2.
Does it means that with a 64 KB cache chunk size I can efficiently cache only up to 64 KB * 1000000 = ~60 GB volume?
So for, say, a 64 TB volume do I need to use 64 MB cache chunks?
ATM drop data you don't need (fstrim filesystem). So far there were not many request to support bigger size although there are plans to improve thin-pool metadata format for next version. Regards Zdenek
Extremely informative answer, thanks a lot. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti@xxxxxxxxxx - info@xxxxxxxxxx GPG public key ID: FF5F32A8 _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
