We used to, now it's all giant ZFS pools (ZFS on Linux, on 100% NVMe, 8Tb 
drives x 24 per unit as two RAIDz2 sets).

We chose that size for fsck times and resync times between machines.  It was 
something we could recover in a day.

Bron.

On Sun, Dec 25, 2022, at 09:50, [email protected] wrote:
> I understand fastmail uses 1 or 2 terabyte partitions,  but im curious as to 
> why they chose this number?
> 
> fsck check times?
> filesystem performance degradation?
> inode limitations?
> fragmentation?
> failure isolation?
> 
> Also, is LVM recommended  or frowned upon?
> 
> 
> 
> 
> 
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--
  Bron Gondwana, CEO, Fastmail Pty Ltd
  [email protected]


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