I am using both. I've lost data on both, and near misses that required hair-raising metadata rebuild.
BTRFS documentation still greatly trail behind ZFS, imo. It's RAID1 implementation is subpar in terms of monitoring.
BTRFS documentation still greatly trail behind ZFS, imo. It's RAID1 implementation is subpar in terms of monitoring.
Can I ask about the circumstances of losing data on ZFS? I've been viewing it as 100% rock-solid, so I'd very much like to know about any failure modes I'm missing.
There was one instance of issues with encryption, but the feature was in testing at the time, and has long since been rectified.
As for failure modes... the first issue above caused issues with send/receive, the second issue caused empty/sparse files to be written instead of data, and the encryption issue caused issues with send/receive and/or garbage data.
The corruptions were identified by scrub after an unexpected restart, but the files were already corrupted before that (the system that was using the iscsi target behaved strangely whenever it accessed the drive.)
Server: Lenovo 3U server Xeon E5 v2 with ECC ram. I forgot what's the controller.