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From: Evan Miller <Evan.Miller@citrix.com>
To: "cloudstack-users@incubator.apache.org"
	<cloudstack-users@incubator.apache.org>
Date: Mon, 4 Jun 2012 18:15:28 -0700
Subject: RE: What are the steps for effectively shrinking a pod's management
 ip range?
Thread-Topic: What are the steps for effectively shrinking a pod's
 management ip range?
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-----Original Message-----
From: Alena Prokharchyk [mailto:Alena.Prokharchyk@citrix.com]=20
Sent: Monday, June 04, 2012 3:38 PM
To: cloudstack-users@incubator.apache.org
Subject: Re: What are the steps for effectively shrinking a pod's managemen=
t ip range?

On 6/4/12 3:28 PM, "Evan Miller" <Evan.Miller@citrix.com> wrote:

>Running CloudStack Management Server v3.0.1 on Centos 6.2.
>=20
>Running XenServer v6.0.2.
>=20
>There is a single zone, single pod, single
>
>cluster and (currently) single (XenServer) host.
>=20
>I'd like to remove two ip addresses from the current management ip=20
>range for the pod. Then, I'd like to add those two ip addresses to the=20
>new, second pod.
>=20
>A set of private and management ip addresses
>
>currently exists in the existing pod.
>=20
>I tried a few thing, but it appears that the fact that I defined a set=20
>of private ips for the pod is preventing me from deleting the pod.
>Note: Deleting hosts is no problem.
>=20
>I am working in a non-production environment trying to determine=20
>peculiar and particular limits to CloudStack v3.0.1.
>=20
>Regards,
> =20
>Evan Miller
> =20
>Citrix Systems. Inc.
>Desktop and Cloud Engineering Infrastructure
>4988 Great America Parkway
>Santa Clara, CA 95054
>(V) and (F) 408-790-8489
>(C)         925-209-1428
>(Email)    =20
>Evan.Miller@citrix.com <mailto:Evan.Miller@citrix.com>
>
>=20
>

Management ip addresses are not used by hosts; they are used by the system =
vms (SSVM and Console proxy vms). The vms have to be stopped in order to re=
lease these Ips. Here are the steps:

1) check which vms are using those ips:

select instance_id from nics where id in (select nic_id from op_dc_ip_addre=
ss_alloc where taken is not null);

2) put your xen hosts into maintenance mode - this has to be done to ensure=
 the system won't find a spot to restart SSVM and CPVM

> Is the CPVM =3D v-2-VM?=20

> Evan


3) stop SSVM and CPVM having ids that we got on step 1)
4) If private (management) ip addresses you want to remove, are located in =
the beginning or at the end of the pod range, you can shrink the Pod range =
by editing the pod. If they are not, you have to remove the pod and reconfi=
gure it again.


-Alena.