5 ms·

Is your SSD similar to L2ARC in ZFS?

• wscott 11y ago
  Yes, see the "What is bcache?" section here: http://bcache.evilpiepirate.org/ http://bcache.evilpiepirate.org/ He compares it to L2ARC... same but with writeback. (ie writes can be considered finished when they are recorded by the SSD. Faster but less safe unless your SSD is also a raid.) The bcachefs part at the top of that page is the new stuff this announcement is describing.
  • stewartbutler 11y ago
    Ok, so it is a combination of L2ARC and ZIL (zfs intent log), then? L2ARC improves read operations, ZIL improves writes.
    • wtallis 11y ago
      It's neither. It's just a writeback cache, that gets bypassed for sequential operations.