> It'll cause problems if yours the only one NVMe drive will die - you'll lost
> all the DB partitions and all the OSDs are going to be failed
The severity of this depends a lot on the size of the cluster. If there are
only, say, 4 nodes total, for sure the loss of a quarter of the OSDs will
I'm in a similar situation, currently running filestore with spinners and
journals on NVME partitions which are about 1% of the size of the OSD. If I
migrate to bluestore, I'll still only have that 1% available. Per the docs,
if my block.db device fills up, the metadata is going to spill back onto
I am considering using logical volumes of an NVMe drive as DB or WAL
devices for OSDs on spinning disks.
The documentation recommends against DB devices smaller than 4% of slow
disk size. Our servers have 16x 10TB HDDs and a single 1.5TB NVMe, so
dividing it equally will result in each OSD
Den tors 20 dec. 2018 kl 22:45 skrev Vladimir Brik
:
> Hello
> I am considering using logical volumes of an NVMe drive as DB or WAL
> devices for OSDs on spinning disks.
> The documentation recommends against DB devices smaller than 4% of slow
> disk size. Our servers have 16x 10TB HDDs and a
: Friday, December 21, 2018 12:09 AM
To: ceph-users@lists.ceph.com
Subject: [ceph-users] Bluestore nvme DB/WAL size
[External Email]
Hello
I am considering using logical volumes of an NVMe drive as DB or WAL devices
for OSDs on spinning disks.
The documentation
Hello
I am considering using logical volumes of an NVMe drive as DB or WAL
devices for OSDs on spinning disks.
The documentation recommends against DB devices smaller than 4% of slow
disk size. Our servers have 16x 10TB HDDs and a single 1.5TB NVMe, so
dividing it equally will result in
