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From William Clark <>
Subject Re: Two hosts in the same cluster are not independent of each - why and how to fix?
Date Sat, 21 Jul 2012 00:18:34 GMT
Are you using advanced setup?  If so how many vlans did you allocated in the guest range?

Bill Clark

On Jul 20, 2012, at 5:12 PM, Evan Miller <> wrote:

> Running CloudStack Management Server:
>  v3.0.2.1
> On:
>  [root@cumulus management]# uname -a
>  Linux 2.6.32-220.el6.x86_64 #1 SMP Tue Dec 6 19:48:22 GMT 2011
x86_64 x86_64 x86_64 GNU/Linux
>  [root@cumulus management]#
> Hypervisor :
>  XenServer v6.02
> Hi:
> I have a cluster called LS_R12345.
> I have one host called xen01 and another host called xencs1.
> I am aware that a host is not really in maintenance mode until Resource state
> says "Maintenance".
> The problem is a moving target ...
> Initially, one host could not be independently created.
> That is, when I created xen01, then both xen01 and xencs1 showed as up.
> Likewise, when I created xencs1, then both xen01 and xencs1 showed as up.
> I only told the CSMS GUI to create one host at a time.
> That above behavior changed after I experimented with maintenance mode and
> deleting hosts.
> Now, the new, odd behavior is as follows:
> If I create xen01 first, it shows up fine, but then I can't add xencs1 later. I get
> a GUI error that simply says can't add host.
> Also, for xen01, it is taking an extraordinarily long time to go from PrepareForMaintenance
> Maintenance Resource state. In fact, it may be stuck in that PrepareFor Maintenance Resource
> This, basically, messes up deleting xen01 and may cause other problems for xencs1 given
the apparent
> dependency between xen01 and xencs1.
> Why is this happening and how to fix?
> Thanks.
> Regards,
> Evan Miller
> Citrix Systems. Inc.
> Desktop and Cloud Engineering Infrastructure
> 4988 Great America Parkway
> Santa Clara, CA 95054

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