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From Chiradeep Vittal <Chiradeep.Vit...@citrix.com>
Subject Re: Cloudstack Questions
Date Thu, 26 Apr 2012 19:33:57 GMT
I put it on the Community page

http://goo.gl/4V94A

On 4/26/12 11:57 AM, "Marlon Davids" <mdavids@umbee.co.uk> wrote:

>Brilliant, thanks Chiradeep,
>
>
>
>Unfortunately I don't see the attachment?
>
>
>
>>There's a few approaches to the "monitoring VMs" question.
>
>A. Install agents on the VMs and get the agents to phone back to your
>monitoring server.
>
>B. Add a dedicated monitoring VLAN per tenant and get the tenant VMs to
>be dual homed on the original isolated VLAN and the monitoring VLAN C.
>Like B, but the VLAN is shared among tenants. There is no isolation
>guarantees in this case.
>
>D. Create a monitoring VLAN. Every tenant creates (or admin creates for
>
>them) a new routing VM (can be any old Linux distro) that has an
>interface on both the monitoring VLAN and the tenant's VLAN. Tenant VMs
>add static routes to the monitoring server to go via the new routing VM.
>
>
>
>See attached PDF
>
>You can use (D) to add any special networking service. For example you
>can add a site-to-site VPN using the additional routing VM (the
>monitoring VLAN becomes a VLAN with public Ips).
>
>
>Kind Regards,
>Marlon Davids
>
>..........................................................................
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>
>-----Original Message-----
>From: Chiradeep Vittal [mailto:Chiradeep.Vittal@citrix.com]
>Sent: 26 April 2012 18:19
>To: cloudstack-dev@incubator.apache.org
>Subject: Re: Cloudstack Questions
>
>
>
>There's a few approaches to the "monitoring VMs" question.
>
>A. Install agents on the VMs and get the agents to phone back to your
>monitoring server.
>
>B. Add a dedicated monitoring VLAN per tenant and get the tenant VMs to
>be dual homed on the original isolated VLAN and the monitoring VLAN C.
>Like B, but the VLAN is shared among tenants. There is no isolation
>guarantees in this case.
>
>D. Create a monitoring VLAN. Every tenant creates (or admin creates for
>
>them) a new routing VM (can be any old Linux distro) that has an
>interface on both the monitoring VLAN and the tenant's VLAN. Tenant VMs
>add static routes to the monitoring server to go via the new routing VM.
>
>
>
>See attached PDF
>
>You can use (D) to add any special networking service. For example you
>can add a site-to-site VPN using the additional routing VM (the
>monitoring VLAN becomes a VLAN with public Ips).
>
>
>
>
>
>On 4/25/12 4:49 AM, "David Nalley" <david@gnsa.us<mailto:david@gnsa.us>>
>wrote:
>
>
>
>>Welcome Marlon
>
>>
>
>>>
>
>>> 1) Will NFS be phased out for secondary storage in the future?
>
>>
>
>>I don't think this is going to happen - and if it is, certainly not any
>
>>time soon.
>
>>
>
>>> 2) How do we monitor VM's that are in Cloudstack when they are in an
>
>>>isolated VLAN does anyone have a clever workaround?
>
>>
>
>>I dont have a good answer for this at the moment
>
>>
>
>>> 3) Has anyone developed a script for parsing and alerting on warning
>
>>>events in the management Log yet?
>
>>>
>
>>
>
>>So you should check out Zenoss's CloudStack ZenPack [1] they poll the
>
>>listEvents API call and parse that for events.
>
>>Alternatively, you could configure log4j to send logs of warning or
>
>>higher to syslog - and thus on to some central logging facility like
>
>>logstash, greylog, or splunk.
>
>>
>
>>
>
>>
>
>>[1] https://github.com/zenoss/ZenPacks.zenoss.CloudStack
>
>


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