On 11/07/13 13:54, Trent W. Buck wrote:
Questions:
For SSDs that would be the make/model of the SSD, but for SD I believe the FTL is implemented in the reader, not in the SD card.
I'm not sure it could be implemented in the reader for SD cards, since the SD cards usually do internal wear levelling. (And I don't think the levelling is in the spec. I mean, it's not a standardised algorithm, but varies between manufacturers.)
- p 26 avoid btrfs/f2fs if OS can be reset by unscheduled power outage or hardware watchdog, unless you have a BBU or similar. ext4 survives many more outages than btrfs/f2fs.
Really? You had them suggesting using nojournal for ext4 just above, but now saying btrfs is less resilient. That's a rather surprising outcome. I would have thought btrfs's copy-on-write system would come out as much safer than ext4 w/out a journal!