Hello, My picture library today lies on an external hard drive that I sync on a regular basis with a couple of servers and other external drives. I'm interested by the on-the-fly checksum brought by btrfs and would like to get your opinion on the following unusual use case that I have tested: - Create a btrfs with the two drives with RAID1 - When at home I can work with the two drives connected so I can enjoy the self-healing feature if a bit goes mad so I only backup perfect copies to my backup servers. - When not at home I only bring one external drive and manually mount it in degraded mode so I can continue working on my pictures while still having checksum error detection (but not correction). - When coming back home I can plug-back the seconde drive and initiate a scrub or balance to get the second drive duplicated.
I have tested the above use case with a couple of USB flash drive and even used btrfs over dm-crypt partitions and it seemed to work fine but I wanted to get some advices from the community if this is really a bad practice that should not be used on the long run. Is there any limitation/risk to read/write to/from a degraded filesystem knowing it will be re-synced later? Thanks alphazo PS: I have also investigated the RAID1 on a single drive with two partitions but I cannot afford the half capacity resulting from that approach. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
