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Linux 5.10 To See RAID10 DISCARD Improvement - From 259 Seconds To Less Than 1 Second

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  • RussianNeuroMancer
    replied
    Originally posted by caligula View Post
    Is it a good idea to use MD RAID5 anymore?
    No

    https://www.zdnet.com/article/why-ra...rking-in-2009/
    https://www.zdnet.com/article/why-ra...rking-in-2019/

    Leave a comment:


  • stiiixy
    replied
    R10 was what I settled on as well. 5/6 clearly haven't settled down.

    Good ol' disconnected HDD's shoved in a cupboard for restoration. Personal use only =D

    Leave a comment:


  • Zan Lynx
    replied
    Originally posted by stiiixy View Post
    A power outage causing data lose in a methodology (R5) that's meant to prevent data loss.

    FFS.

    Glad I gave up BTRFS.
    I wouldn't run RAID 5 or 6 with MD RAID either. For those the only good option is a hardware card.

    I'm running btrfs RAID-10 with six drives and a second RAID-1 of two SSD drives. It's pretty great.

    Leave a comment:


  • jo-erlend
    replied
    Originally posted by stiiixy View Post
    A power outage causing data lose in a methodology (R5) that's meant to prevent data loss.

    FFS.

    Glad I gave up BTRFS.
    I don't see that as a problem at all. If your data is important, then why would you allow power outage?

    Leave a comment:


  • stiiixy
    replied
    A power outage causing data lose in a methodology (R5) that's meant to prevent data loss.

    FFS.

    Glad I gave up BTRFS.

    Leave a comment:


  • foobaz
    replied
    MD RAID 5 is faster than ZFS RAID-Z1, but also less resilient against data loss due to the RAID write hole. Btrfs RAID 5 has the same characteristics as MD RAID 5 - it's fast but a power outage can cause data loss.

    Leave a comment:


  • caligula
    replied
    Is it a good idea to use MD RAID5 anymore? Now that there are systems like ZFS and Btrfs.

    Leave a comment:


  • Linux 5.10 To See RAID10 DISCARD Improvement - From 259 Seconds To Less Than 1 Second

    Phoronix: Linux 5.10 To See RAID10 DISCARD Improvement - From 259 Seconds To Less Than 1 Second

    Queued today into the block subsystem's "-next" area ahead of the Linux 5.10 cycle kicking off next month are some MD RAID enhancements...

    http://www.phoronix.com/scan.php?pag...er-RAID10-Trim
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