Re: [ceph-users] Large storage nodes - best practices

Le 06/08/2013 02:57, James Harper a écrit : In the previous email, you are forgetting Raid1 has a write penalty of 2 since it is mirroring and now we are talking about different types of raid and nothing really to do about Ceph. One of the main advantages of Ceph is to have data replicated so y

[ceph-users] [ceph-deploy] Unable to find keys on MON

Hi All, I'm trying to deploy a simple Ceph Cluster on VMs (using Vagrant and VirtualBox). I have one VM for a Ceph Monitor (ceph-mon0), one for 2 OSDs (ceph-osd0) and one that is where I'm executing ceph-deploy from (ceph-admin). All goes well till I execute the 'ceph-deploy gatherkeys ceph-mon

Re: [ceph-users] About single monitor recovery

On Tue, Aug 6, 2013 at 12:28 AM, Sage Weil wrote: > On Mon, 5 Aug 2013, Yu Changyuan wrote: > > The good news is, with new patch, ceph start OK, cephfs mount OK, and kvm > > virtual machine use rbd boot OK(and seems running ok), and I check the > > timestamp of last file write to cephfs, it's fai

[ceph-users] journal on ssd

Greetings all. I am installing a test cluster using one ssd (/dev/sdg) to hold the journals. Ceph's version is 0.61.7 and I am using ceph-deploy obtained from ceph's git yesterday. This is on RHEL6.4, fresh install. When preparing the first 2 drives, sda and sdb, all goes well and the journals ge

[ceph-users] error noticed while setting the Storage cluster

HI , I am getting following error when I try to execute this command from admin node. Followed below procedure mentioned in the document. http://ceph.com/docs/master/start/quick-ceph-deploy/ Sadhu@ubuntu-2:~$ ceph-deploy install --stable cuttlefish ubuntu3 sadhu@ubuntu3's password: Traceback (

Re: [ceph-users] error noticed while setting the Storage cluster

On 08/06/2013 08:31 PM, Suresh Sadhu wrote: HI , I am getting following error when I try to execute this command from admin node. Followed below procedure mentioned in the document. http://ceph.com/docs/master/start/quick-ceph-deploy/ Sadhu@ubuntu-2:~$ ceph-deploy install --stable cuttlefish

[ceph-users] adding osds manually

Hi again Ceph devs, I'm trying to deploy ceph using puppet and I'm hoping to add my osds non-sequentially. I spoke with dmick on #ceph about this and we both agreed it doesn't seem possible given the documentation. However, I have an example of a ceph cluster that was deployed using ceph-deploy

[ceph-users] minimum object size in ceph

Hi, when using the C api (RADOS) what is the minimum object size ? And what is the key type ? (uint64_t, char[], or something like that ?) TIA Nulik ___ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph

Re: [ceph-users] minimum object size in ceph

No minumum object size. As for key, not sure what you mean; the closest thing to an object 'key' is its name, but it's obvious from routines like rados_read() and rados_write() that that's a const char *. Did you mean some other key? On 08/06/2013 12:13 PM, Nulik Nol wrote: Hi, when using

Re: [ceph-users] ceph-deploy progress and CDS session

One thing that comes to mind is the ability to create (or activate) osd's with a custom crush specification from (say) a supplied file. Regards Mark On 03/08/13 06:02, Sage Weil wrote: There is a session at CDS scheduled to discuss ceph-deploy (4:40pm PDT on Monday). We'll be going over what

[ceph-users] fuse or kernel fs?

Are the fuse and kernel filesystem drivers about the same or is one definitely better than the other? Thanks James ___ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

[ceph-users] could not generate the bootstrap key

using the ceph-deploy to manage a existing cluster,i follow the steps in the document ,but there is some errors that i can not gather the keys.when i run the command "ceph-deploy gatherkeys PS-16",the logs show below: 2013-08-07 10:14:08,579 ceph_deploy.gatherkeys DEBUG Have ceph.client.admin.