write cache

  1. fr33bsd

    ZFS SLOG device with no performance effect?

    Greetings, I have a sort of backup server for snapshots. This server is only dedicated to receive snapshots. There is no NFS/FTP/.... . During a transfer of a snapshot using netcat I added a slog NVMe ssd to the backup pool. I was hoping to see even a tiny speed boost, but there was none. I...
    • fr33bsd
    • Thread
    • slog snapshots write cache write speed zfs
    • Replies: 1
    • Forum: Storage
  2. S

    Write-Back cache!

    Hi, We are looking to use NVMe SSD as write-back cache just to enhance write IOPS while reads should only be served by backend storage based on HDDs. Is this possible with FreeBSD ? Regards.
    • shahzaib
    • Thread
    • caching freebsd 11.2 ssd cache write cache write-speed
    • Replies: 8
    • Forum: Storage
  3. olav

    Solved Is there a simple way to disable write cache?

    On Linux I can do this simply with: hdparm -W 0 /dev/sda Is this possible with camcontrol(8)?
    • olav
    • Thread
    • camcontrol hdparm write cache
    • Replies: 1
    • Forum: Storage
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