Re: big volumes only work reliable with ssd_spread

2018-01-15 Thread Duncan
Stefan Priebe - Profihost AG posted on Mon, 15 Jan 2018 10:55:42 +0100 as excerpted: > since around two or three years i'm using btrfs for incremental VM > backups. > > some data: > - volume size 60TB > - around 2000 subvolumes > - each differential backup stacks on top of a subvolume > - compres

big volumes only work reliable with ssd_spread

2018-01-15 Thread Stefan Priebe - Profihost AG
Hello, since around two or three years i'm using btrfs for incremental VM backups. some data: - volume size 60TB - around 2000 subvolumes - each differential backup stacks on top of a subvolume - compress-force=zstd - space_cache=v2 - no quote / qgroup this works fine since Kernel 4.14 except th