Re: [ceph-users] metadata management in case of ceph object storage and ceph block storage

2015-04-18 Thread pragya jain
Thanks to all for your reply It is clear that Monitor keeps track of Pools and PGs in the cluster and there is no need of MDS for Ceph object storage and block storage, since both of these storage types do not require to maintain a file hierarchy.But, I have a question:In Ceph Object Storage,

Re: [ceph-users] metadata management in case of ceph object storage and ceph block storage

2015-04-17 Thread Steffen W Sørensen
On 17/04/2015, at 07.33, Josef Johansson jose...@gmail.com wrote: To your question, which I’m not sure I understand completely. So yes, you don’t need the MDS if you just keep track of block storage and object storage. (i.e. images for KVM) So the Mon keeps track of the metadata for

Re: [ceph-users] metadata management in case of ceph object storage and ceph block storage

2015-04-17 Thread pragya jain
Thanks to all for your reply -RegardsPragya JainDepartment of Computer ScienceUniversity of DelhiDelhi, India On Friday, 17 April 2015 4:36 PM, Steffen W Sørensen ste...@me.com wrote: On 17/04/2015, at 07.33, Josef Johansson jose...@gmail.com wrote: To your question, which

Re: [ceph-users] metadata management in case of ceph object storage and ceph block storage

2015-04-16 Thread Josef Johansson
Hi, Maybe others had your mail going into junk as well, but that is why at least I did not see it. To your question, which I’m not sure I understand completely. In Ceph you have three distinct types of services, Mon, Monitors MDS, Metadata Servers OSD, Object Storage Devices And some other

Re: [ceph-users] metadata management in case of ceph object storage and ceph block storage

2015-04-06 Thread pragya jain
Please somebody reply my queries. Thank yuo -RegardsPragya JainDepartment of Computer ScienceUniversity of DelhiDelhi, India On Saturday, 4 April 2015 3:24 PM, pragya jain prag_2...@yahoo.co.in wrote: hello all! As the documentation said One of the unique features of Ceph is

[ceph-users] metadata management in case of ceph object storage and ceph block storage

2015-04-04 Thread pragya jain
hello all! As the documentation said One of the unique features of Ceph is that it decouples data and metadata.for applying the mechanism of decoupling, Ceph uses Metadata Server (MDS) cluster.MDS cluster manages metadata operations, like open or rename a file On the other hand, Ceph