[ceph-users] BlueStore questions about workflow and performance
nowitzki.sammy at gmail.com
Mon Oct 2 15:01:12 PDT 2017
Anyone can help me?
On Oct 2, 2017 17:56, "Sam Huracan" <nowitzki.sammy at gmail.com> wrote:
> I'm reading this document:
> I have 3 questions:
> 1. BlueStore writes both data (to raw block device) and metadata (to
> RockDB) simultaneously, or sequentially?
> 2. From my opinion, performance of BlueStore can not compare to FileStore
> using SSD Journal, because performance of raw disk is less than using
> buffer. (this is buffer purpose). How do you think?
> 3. Do setting Rock DB and Rock DB Wal in SSD only enhance write, read
> performance? or both?
> Hope your answer,
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