Minimum System Requirements

[José Egas López <jo...@farmaenlace.com>]

Hi, I'm about to implement CS 4.4 (CentOS 6.5) with on host running ESXi 
5.5; my doubt, for a production environment what do I need for 
implementing CS is (please correct me if I'm wrong):

- One virtual machine (VM) with: Management Server (with MySQL running 
on it) --> 250GB or more, etc.
- Another VM with Storage (Primary and Secondary) --> how many capacity 
of storage is recommendable?

I'm not sure about the storages on both VMs, I have read the manual but 
it is not clear for me, please help!


-- 

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José

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Re: Minimum System Requirements

[ilya musayev <il...@gmail.com>]

Jose,

Based on my experience - which is fairly extensive with vSphere and 
CloudStack.

My recommendations and things you need to be aware off.

CloudStack does not completely support distributed switches, while you 
have coverage for guest and public networks, at this point in time, we 
dont support management and storage network on vDS. If you have 4 nics 
on each hypervisors, then you can use 2 nics for management on regular 
switch and 2 nics on for guests/public on distributed switches. This 
limitation is going to be addressed in future release.

If you only have 2 NICs, then you will most like have to go with 
standard switches unless you want to split 1 nic for managment and 1 for 
guest/public (bad practice as you know - especially for production).

CloudStack manages all network port groups and creates them as needed, 
so it does partial what vDS does.

Also, you welcome to try 4.4, (if you have a specific need to be on 
4.4), otherwise, i'd go with 4.3.1 which is not out yet, but will 
hopefully be out in few weeks. I've put together a pre 4.3.1 build here, 
http://download.cloudsand.com/cloudsand/rhel/6/x86_64/cloudstack-4.3.0.1-08192014.rpm.tgz

You can upgrade to 4.3.1 when it comes out, or 4.4.1 which is also a 
work in progress.

For your POC:
1 MGMT Server with MySQL - 100GB is enough, at least 2vCPUx4GB RAM preferred
Storage VM which i assume will be NFS, depending on how large your VMs 
are. By default, unless you change this behavior in global settings 
CloudStack will use "link clones", which means - you save alot on disk 
space. However you also using disk deltas, so if you have high rate of 
change, delta may get large.

I'd say start with 300GB. 100GB for secondary, 200GB for primary and 
grow as needed. It can even be 1 large nested NFS share with 2 
directories in it. One for primary and one for secondary. You just mount 
them directly as needed. For example, while /etc/exports has /storage, 
you can create two directories primary and secondary and mount them 
through /storage/primary for primary and /storage/secondary as secondary.

Regards
ilya



On 8/20/14, 4:09 PM, José Egas López wrote:
> Hi, I'm about to implement CS 4.4 (CentOS 6.5) with on host running 
> ESXi 5.5; my doubt, for a production environment what do I need for 
> implementing CS is (please correct me if I'm wrong):
>
> - One virtual machine (VM) with: Management Server (with MySQL running 
> on it) --> 250GB or more, etc.
> - Another VM with Storage (Primary and Secondary) --> how many 
> capacity of storage is recommendable?
>
> I'm not sure about the storages on both VMs, I have read the manual 
> but it is not clear for me, please help!
>
>