Vida - installing Ceph as hosted VMs is a great way to get experience "hands-on" with a Ceph cluster. It is NOT a good way to run Ceph for any real work load. NOTE that it's critical you structure your virtual disks and virtual network(s) to match how you'd like to run your Ceph work loads on real hardware. If you don't - when you move from your "playground" Ceph cluster, all of your installations tooling/scripts will break badly - and you'll have a very hard time getting your ceph cluster up and running without significant debugging and reworking of the installation process...
In summary - yet - an excellent way to get familiar with Ceph. ONE MAJOR CAVEAT - it's critical that your VMs have accurate / sync'd time (clock time). If they don't you'll have no end of problems with your cluster not being "clean". Insure that your VMs are all successfully running NTP or peering with each other to keep in sync. NOTE that a lot of VM implementations wil suffer significant clock drift (even within just a few hours of running) ... this can be a pain in the behind to deal with... ~~shane On 6/15/15, 1:42 PM, "vida ahmadi" <[email protected]<mailto:[email protected]>> wrote: Dear all, I am new user in ceph and I would like to install ceph with minimum requirement.I read in some documents to put ceph components(OSDs,MON,MDSs) in different virtual machine. Is it good idea for starting? Please let me know about your suggestion and experience. Thank you in advance. -- Best regards, Vida
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