Hi,
Right - but what is you have two types of NVMe drives?
I thought that there's only a fixed enum of device classes - hdd, ssd, or nvme.
You can't add your own ones, right?
Thanks,
Victor
On Thu, Sep 12, 2019 at 12:54 PM Konstantin Shalygin <k0ste@xxxxxxxx> wrote:
It's already simple way to do that - device classes.I have a 3-node Ceph cluster, with a mixture of Intel Optane 905P PCIe disks, and normal SATA SSD drives. I want to create two Ceph pools, one with only the Optane disks, and the other with only the SATA SSDs. When I checked "ceph osd tree", all the drives had device class "ssd". As a hack - I was able to change the device class for the Optane drives to "nvme", and leave the SATA SSDs as "ssd". I then created crush rules based on device classes. However, what if I don't want to overload device classes to achieve this, or have more than two models of disks? Is there an easy way to assign specific drives of a model/type/capacity to different pools?It's like 8021q in networks.
k
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