Hi Yip,
Thanks for the code. With respect to "can't grow", I think I can (with some difficulty perhaps?) resize the vm if I needed to, but I'm really just trying to buy myself time till CEPH-FS is production ready....Point #3 scares me, so I'll have to think about that one. Most likely I'd use a completely different technology to back-up this VM (eg rsync the key folders to some external, encrypted, cheap RAID storage, such as iomega.) Point 4 is probably not that big a deal for my needs, since CEPH itself should more-or-less ensure high availability due to disk crashes -- and as for VM crashing, I can tolerate a few minutes/hours downtime if needed, and so far I have yet to have a Linux VM crash over 3 years of running them....
On Mon, Nov 18, 2013 at 1:26 AM, YIP Wai Peng <yipwp@xxxxxxxxxxxxxxx> wrote:
Hi all,I've uploaded it via github - https://github.com/waipeng/nfsceph. Standard disclaimer applies. :)
Actually #3 is a novel idea, I have not thought of it. Thinking about the difference just off the top of my head though, comparatively, #3 will have1) more overheads (because of the additional VM)2) Can't grow once you reach the hard limit of 14TB, and if you have multiple of such machines, then fragmentation becomes a problem3) might have the risk of 14TB partition corruption wiping out all your shares4) not as easy as HA. Although I have not worked HA into NFSCEPH yet, it should be doable by drdb-ing the NFS data directory, or any other techniques that people use for redundant NFS servers.- WPOn Fri, Nov 15, 2013 at 10:26 PM, Gautam Saxena <gsaxena@xxxxxxxxxxx> wrote:
Yip,I went to the link. Where can the script ( nfsceph) be downloaded? How's the robustness and performance of this technique? (That is, is there are any reason to believe that it would more/less robust and/or performant than option #3 mentioned in the original thread?)--On Fri, Nov 15, 2013 at 1:57 AM, YIP Wai Peng <yipwp@xxxxxxxxxxxxxxx> wrote:
On Fri, Nov 15, 2013 at 12:08 AM, Gautam Saxena <gsaxena@xxxxxxxxxxx> wrote:
1) nfs over rbd (http://www.sebastien-han.fr/blog/2012/07/06/nfs-over-rbd/)We are now running this - basically an intermediate/gateway node that mounts ceph rbd objects and exports them as NFS. http://waipeng.wordpress.com/2013/11/12/nfsceph/
- WPGautam SaxenaPresident & CEOIntegrated Analysis Inc.Making Sense of Data.™Biomarker Discovery Software | Bioinformatics Services | Data Warehouse Consulting | Data Migration Consulting(301) 760-3077 office(240) 479-4272 direct
(301) 560-3463 fax
Gautam Saxena
President & CEO
Integrated Analysis Inc.
Making Sense of Data.™
Biomarker Discovery Software | Bioinformatics Services | Data Warehouse Consulting | Data Migration Consulting
(301) 760-3077 office
(240) 479-4272 direct
(301) 560-3463 fax
(301) 560-3463 fax
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