Ceph, RAID cards and Hot swap

Discussion in 'Proxmox VE: Installation and configuration' started by Stefano Giunchi, May 16, 2018.

  1. Stefano Giunchi

    Stefano Giunchi New Member
    Proxmox VE Subscriber

    Jan 17, 2016
    Likes Received:
    Hi all,
    I have a doubt about RAID controllers and Ceph.
    I know that I must not put ceph osd disks under raid, as such I would not need a RAID controller.
    But the controller allows to hotswap disks, so I DO need it.

    Is it right?
  2. Alwin

    Alwin Proxmox Staff Member
    Staff Member

    Aug 1, 2017
    Likes Received:
    No, modern hardware and software has no (usually) issues with hot-swapping. In case of a dead drive, you don't even care about data integrity and just pull it out.

    In any case, use a HBA, Ceph needs to be in control of the disks entirely.
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