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Hello all. I have a Ceph cluster using XFS on the OSDs. Btrfs is not available to me at the moment (cluster is running CentOS 6.4 with stock kernel).

27.10.2020 · Where ZFS can start with little hardware investment though, CEPH requires more hardware as it doesn’t accept compromising the data consistency by storing all data (at least) 3 times. That’s why ZFS and CEPH make such a great storage couple, each with their own specific use cases within the organization.

07.12.2015 · When Proxmox VE is setup via pveceph installation, it creates a Ceph pool called “rbd” by default. This rbd pool has size 3, 1 minimum and 64 placement groups (PG) available by default. 64 PGs is a good number to start with when you have 1-2 disks. However, when the cluster starts to expand to multiple nodes and multiple disks per node, the ...

For example; ZFS is often used for creating a backup or to build archive data, while Ceph provides the S3 cloud storage and virtual disk storage ...

One RBD per pool, local SSD as SLOG/L2ARC. Same as 3, only with the SSD as cache on the Ceph hosts. On instinct I'd go with 1 as it uses ...

17.07.2017 · Permalink. Hello all. I have a Ceph cluster using XFS on the OSDs. Btrfs is not available to. me at the moment (cluster is running CentOS 6.4 with stock kernel). I intend to maintain a full replica of an active ZFS dataset on the. Ceph infrastructure by installing an OpenSolaris KVM guest using. rbd-fuse to expose the rbd image to the guest.

ZFS¶. The backend of ceph-volume zfs is ZFS, it relies heavily on the usage of tags, which is a way for ZFS to allow extending its volume metadata.

You can create a ZFS filesystem on an RBD, but making a ZFS pool from multiple RBD will just give you tons of overhead, Ceph is already slow, ...

I'm evaluating Ceph and one of my workloads is a server that provides home directories to end users over both NFS and Samba.

Ceph version: Nautilus 14.2.16 RBD Data = EC Pool RBD Metadata = SSD replicated zpool create $testpool rbd0 exportfs /testpool Is there anyone ...

ZFS¶. The backend of ceph-volume zfs is ZFS, it relies heavily on the usage of tags, which is a way for ZFS to allow extending its volume metadata. These values can later be queried against devices and it is how they get discovered later. Currently this interface is only usable when running on FreeBSD.

I don't have compression enabled on zfs so I could see a real throughput. Can some one help to explain this? zfs get all rbdlog2/cephlogs. NAME ...

05.04.2019 · An iSCSI LUN being tunneled across a PPP link, or a Ceph server providing an RBD from a continent over. Obviously there are limits to what we can do with that kind of latency, but ZFS can make working within these limits much easier by refactoring our data into larger blocks, efficiently merging reads and writes, and spinning up many I/O threads in a throughput-oriented …

shows the distribution of I/Os from the pool to rbd by size. Without this information, you're wasting time trying to optimize. Also, depending on your rbd ...