Re: [ceph-users] Ceph instead of RAID

2013-09-17 Thread Guangliang Zhao
On Tue, Aug 13, 2013 at 10:41:53AM -0500, Mark Nelson wrote: Hi Mark, On 08/13/2013 02:56 AM, Dmitry Postrigan wrote: I am currently installing some backup servers with 6x3TB drives in them. I played with RAID-10 but I was not impressed at all with how it performs during a recovery.

Re: [ceph-users] Rbd cp empty block

2013-09-16 Thread Guangliang Zhao
On Mon, Sep 16, 2013 at 09:20:29AM +0800, 王根意 wrote: Hi all: I have a 30G rbd block device as virtual machine disk, Aleady installed ubuntu 12.04. About 1G space used. When I want to deploy vm, I made a rbd cp. Then problem came, it copy 30G data instead of 1G. And this action take lots

Re: [ceph-users] Rbd cp empty block

2013-09-16 Thread Guangliang Zhao
On Mon, Sep 16, 2013 at 09:20:29AM +0800, 王根意 wrote: Hi all: I have a 30G rbd block device as virtual machine disk, Aleady installed ubuntu 12.04. About 1G space used. When I want to deploy vm, I made a rbd cp. Then problem came, it copy 30G data instead of 1G. And this action take lots