1. S

    Ceph storage mix SSD and HDD

    Good afternoon, colleagues! I have a problem with the implementation of Ceph storage. My configuration: There is a Supermicro Superblade chassis, which has 20 physical servers. Each server has 2 processors, 64 GB of RAM, 1xSDD 32GB for OS, 1xSSD and 1xHDD for Ceph There is a desire to collect...
  2. P

    Ceph: How to specifiy DB device for Bluestore OSD

    How to specify DB device (not WAL device) for Bluestore OSD? The Proxmox documentation of pveceph ( clearly shows how to specify a WAL device, but not a DB device. pveceph createosd /dev/sdn -wal_dev /dev/sdb Having used this method, within the...
  3. ssaman

    Calculating Journal Size - ceph

    Hello Support, we wonder how we could calculate the journal size. in the documentation we found this: "osd journal size = 2 * expected throughput * filestore max sync interval" we have a server with 16 Slots. Currently we have a 1TB SSD and 6 HDDs. 2 of the HDDs are used for the System. At...
  4. L

    Replace Journal / WAL SSD drive

    We have a four node Proxmox cluster with all of the nodes also providing Ceph storage services. One of the nodes is having issues with the SSD that we are using for the journal / WAL drives (this is 5.1 / bluestore). We use a command like: pveceph createosd /dev/sdc --journal_dev /dev/sdr...
  5. J

    Step by Step Process to Replace Ceph Journal SSD

    Hi all, I have some Ceph Journal SSD's that will likely hit their wear limits sometime during the next quarter. Is there a graceful step-by-step method to swap them out and replace them with new drives before they finally expire? I'd like to have a plan in place and do this with as little...
  6. A

    ceph-disk no journal with NVMe?

    Hi, i've a 5 Node Proxmox/Ceph Cluster. The OSDs are located at 3 of those 5 Machines. 4 OSDs per Node with P3700 NVMe SSD as journal Devices. My Question is: ceph-disk list should print the OSDs with some infos about journaling. My journal info of each OSD is empty?! Is this ok...


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