I'm a new OpenQRM user and running into CentOS / VMWare (ESXi) / Netapp environement and like to know if there are some good Howto or Best practices to put in place a solution such OpenQRM. For example how to choose the best way to install machines ? (Put root-fs on NFS ? Install new machines each time ? Advantages / Inconvenients of those choices…)
Thanks in advance!
I just want to add some precision; I wrote this post because I'm not sure how to proceed with my Machines using OpenQRM… Should I boot on PXE ? Should I install machines each time with local storage ?
I also have a question about basic function of OpenQRM (yes I did read the documentation but still have question… :) )… An image = a server ? Meaning we need a storage / image for each root file system ?
All I want is to have many rootfs as servers we have… I want them totally independant…
Thanks for helping me !
Just a lost new user … :)
always depends on what you prefer. openQRM is "just" the platform which allows you to do rapid deployments in different ways.
We recommend booting everything via PXE and using lvm-storage with iSCSI or AOE (vblade)
enjoy + have a nice day,
Thanks for your answer.
All I want, is to have my VMWare Farm with all Guests (Centos and maybe some windows (server - I know it's not yet supported…)) managed by OpenQRM. All servers should be independant.
In an OpenQRM view, how should the configuration be ? One Image per server ? Difference between appliance and image is a little bit tricky :)
Thanks again for your answers… I really believe in this project and can interest my enterprise but I need to have a strong plan and be able to demonstrate that it works well!
Last details, we don't have iscsi configured anywhere, we want to stay with NFS only…
windows deployment is supported by openQRM
The difference between an image and an appliance is the following :
- represents your "service"
- uses an image, a kernel, a resource + SLAs
- represents the root-filestem located on a storage server
You can have N images for N server. You can have also N appliances.
Just one appliance can be active on each resource.
-> each active resource has its dedicated image
hope it helps + have a nice day,
Hi matt !
Thanks a lot for your clarification.
If I summarize;
1 server for a customer = 1 storage, 1 image, 1 vm container, 1 kernel, 1 appliance
Last thing; Do I need 1 storage volume per image ???
Really great product
right and yes, each image has a dedicated volume.
-> you can of course have multiple images that are using the same volume but then only one of those image can/should be active.
thanks for the flowers, nice to hear you like openQRM
enjoy + have a great weekend,
Project Manager openQRM
Thanks again for your answer :)
I have a little problem with this concept; 1 volume = 1 image.
Why ? This is simple;
I'm using a Netapp with NFS and deduplication. With Netapp, the deduplication is done on the volume. Now if I have 1 volume per image, I will lose all deduplication interest… What do you suggest in this case ?
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