Hello,
I have a question regarding the default pool of a cephfs.
According to the docs it is recommended to use a fast ssd replicated
pool as default pool for cephfs. I'm asking what are the space
requirements for storing the inode backtrace information?
Let's say I have a 85 TiB replicated ssd pool (hot data) and as 3 PiB EC
data pool (cold data).
Does it make sense to create a third pool as default pool which only
holds the inode backtrace information (what would be a good size), or is
it OK to use the ssd pool as default pool?
Thanks
Dietmar