Re: lazytime mount option—no support in Btrfs

2018-08-18 Thread waxhead
Adam Hunt wrote: Back in 2014 Ted Tso introduced the lazytime mount option for ext4 and shortly thereafter a more generic VFS implementation which was then merged into mainline. His early patches included support for Btrfs but those changes were removed prior to the feature being merged. His

Re: Experiences on BTRFS Dual SSD RAID 1 with outage of one SSD

2018-08-18 Thread Martin Steigerwald
Roman Mamedov - 18.08.18, 09:12: > On Fri, 17 Aug 2018 23:17:33 +0200 > > Martin Steigerwald wrote: > > > Do not consider SSD "compression" as a factor in any of your > > > calculations or planning. Modern controllers do not do it anymore, > > > the last ones that did are SandForce, and that's

Re: Experiences on BTRFS Dual SSD RAID 1 with outage of one SSD

2018-08-18 Thread Roman Mamedov
On Fri, 17 Aug 2018 23:17:33 +0200 Martin Steigerwald wrote: > > Do not consider SSD "compression" as a factor in any of your > > calculations or planning. Modern controllers do not do it anymore, > > the last ones that did are SandForce, and that's 2010 era stuff. You > > can check for yourself