[CentOS] cyrus spool on btrfs?

> On Sep 9, 2017, at 12:47 PM, hw <hw at gc-24.de> wrote:
> 
> Isn´t it easier for SSDs to write small chunks of data at a time?

SSDs read/write in large-ish (256k-4M) blocks/pages. Seems to me that drive blocks and hardware RAID strip size and file system block/cluster/extents sizes and etc and etc and etc should be aligned for best performance.

See:
  http://codecapsule.com/2014/02/12/coding-for-ssds-part-2-architecture-of-an-ssd-and-benchmarking/

Specifically the section: 
NAND-flash pages and blocks