Re: [ceph-users] my cluster has only rbd pool

Thank you! Lewis. Understood. Best regards Lin,wang 发自我的 iPhone > 在 2014年12月15日，03:23，Craig Lewis 写道： > > If you're running Ceph 0.88 or newer, only the rdb pool is created by default > now. Greg Farnum mentioned that the docs are out of date there. > >> On Sat, Dec 13, 2014 at 8:25 PM, w

[ceph-users] Why isn't RBD synced between two machines?

Hi ceph users, I'm a new user of ceph, just POC-ing for a shred file system. I'm struggling that a file on top of a same image of RBD is not synced between two machines. I've just setup a ceph cluster (giant on ubuntu14.04), one mon on machine1 and one osd on machine2, created a image(foo) and ma

[ceph-users] Stripping data

Hello All, Does anyone know how to configure data stripping when using ceph as file system? My understanding is that configuring stripping with rbd is only for block device. Many thanks, Kevin ___ ceph-users mailing list ceph-users@lists.ceph.com http:

Re: [ceph-users] my cluster has only rbd pool

On 14/12/14 17:25, wang lin wrote: Hi All I set up my first ceph cluster according to instructions in http://ceph.com/docs/master/start/quick-ceph-deploy/#storing-retrieving-object-data but I got

[ceph-users] RBD and HA KVM anybody?

Hello, What are people here using to provide HA KVMs (and with that I mean automatic, fast VM failover in case of host node failure) in with RBD images? Openstack and ganeti have decent Ceph/RBD support, but no HA (plans aplenty though). I have plenty of experience with Pacemaker (DRBD backed)

Re: [ceph-users] Why isn't RBD synced between two machines?

Hello, On Mon, 15 Dec 2014 02:39:25 + riywo wrote: > Hi ceph users, > > I'm a new user of ceph, just POC-ing for a shred file system. I'm > struggling that a file on top of a same image of RBD is not synced > between two machines. > You're looking for a shared filesystem (like NFS, CephFS),

Re: [ceph-users] Why isn't RBD synced between two machines?

Hi Christian, Thanks! I completely understood what I want :) I'll try to use CephFS. Best, Ryosuke On Mon Dec 15 2014 at 12:17:12 PM Christian Balzer wrote: > > Hello, > > On Mon, 15 Dec 2014 02:39:25 + riywo wrote: > > > Hi ceph users, > > > > I'm a new user of ceph, just POC-ing for a

[ceph-users] Slow RBD performance bs=4k

I have the following setup: Node1 = 8 x SSD Node2 = 6 x SATA Node3 = 6 x SATA Client1 All Cisco UCS running RHEL6.5 + kernel 3.18.0 + ceph 0.88. A "dd bs=4k oflag=direct" test directly on a OSD disk shows me: Node1 = 60MB/s Node2 = 30MB/s Node2 = 30MB/s I've created 2 pools, each size=1, pg_num=