vCloud Automation Center 6.0 (vCAC 6.0)–Reservation Policies, Storage Reservation Policies, Network
Before we proceed further let me revise where we are. In first post here we Installed and Configure vCloud Automation Center 6.0 Identity Appliance (vCAC 6.0 Identity Appliance) and vCloud Automation Center Appliance (vCAC 6.0) and in second post here we Installed and configured vCloud Automation Center IaaS (vCAC 6.0 IaaS). In third post we went further to configure Tenant. As per below diagram we completed almost every configuration. This post will be focusing on optional configuration part
We created sales business group, assigned Business group admin to it. We created reservation and assigned reservation to sales BU.
While creating reservation we stopped at explaining Alert tab. Lets resume with its discussion. It is optional configuration but worth understanding and enabling it. In cloud environment where things change dynamically we must configure alert.
Click on the ALERTS tab, Set the capacity alerts to on various parameters seen below.
Unless you have configuration notification alerts emails won’t be sent
Few consideration about Reservation
Reservation is a portion/share of resources which we assign to multiple business group (e.g. Sales, HR, Marketing) and multiple business group can have different reservation types (e.g. Gold, Silver and Bronze). In my environment Gold cluster was assigned to Sales and Marketing Business group in above figure. I have linked PDF copy to the figure. However reservation cannot be shared across the Business group. If you have created reservation for, end user cannot request a Hyper-V resource using that reservation. Reservation type must match the platform defined in blueprint. If you name your blueprint accordingly this shouldn’t be problem at all.
It is collection of resources into group to make specific type of service available. Below I have created a policy by name Production Reservation Policy and included silver and gold reservation.
In below figure I tried to explain that you can have different reservations assigned to single reservation policy but Blue prints can have only one reservation policy assigned. However when resources are provisioned, only reservation which match the blueprint type are considered & allocated.
Reservation policy needs to be populated with reservations. However this is not quite easy to correlate in practice. When you create reservation you have an option to assign that reservation to the reservation policy. This is where association between reservation and reservation policies is created. Reservations are created for Business group and Business group have multiple reservation from fabric. With reservation policy you have an option to bring all types of reservation assigned to a business group under single reservation policy. let me explain it via simple diagram below
In above example we have tenant, under which we have created a Sales Business group. Inside Sales Business group I have created three reservation of different types. I defined have multiple reservations e.g. Cloud, Virtual and Physical. As Fabric administrator I have created reservation policy by name “Virtual Reservation Policy” to collect resources of both Virtual and Cloud reservations. This policy will help me to provision all virtual resource as long as I select in Blueprint/Reservation “Virtual Reservation Policy”. This is just one way of doing it.
You can create reservation or reservation policy first. There is as such no dependence. In fact reservation policies are optional part of over all piece. Better way to do is create reservation policy first.
Reservation policy is actually a tag. All you need to put a name to the tag, little description for it. To create reservation policy, Go to Infrastructure –> Reservation –>Reservation Policies and Click New Reservation Policies. As described above I have created two reservation policy and can be seen below.
Production Reservation Policy for Gold and Silver reservation
Gold Storage for production virtual machines
Creating reservation policy is not sufficient. You must Assign reservation policy to reservations which you intended to group together. So below I’m creating new reservations and assigning newly creating reservation policies each one of them as described above.
Storage Reservation Policy
Storage reservation policy is similar to reservation policy. Primary purpose is to collect datastore of similar characteristic into a group. Below I have created a storage reservation policy by name GOLD and got three different datastores (Datastore01, Datastore02 & Datastore03) of same characteristic into single storage reservation policy.
This tag helps to assign storage as per the requirement of application. In case Datastore 01 one is full, VM will be automatically provision to datastore 02. It means we just need to have storage reservation policy in place. Behind scene Gold storage from either of datastore01,02 or 03 is assigned for sure.
It is similar to storage profiles released in vSphere 5.0. However these tags were inherited by Dynamic ops. I wonder if there is still a use case of this tag when vSphere DRS cluster is becoming so much popular. Datastore cannot have multiple storage reservation policy e.g. Datastore 01 cannot have another storage reservation policy assigned but storage reservation policy can have different datastores. After storage reservation policy is created to be effective you must assigned it to volume.
Do not create storage reservation policy if you have well designed Storage DRS cluster
Similar to reservation policy, storage reservation policy is also a tag. You can create storage reservation policy from same interface as from reservation policy. Both are almost similar, at least I have not discovered any difference but logically they cannot be combined.
Assigning storage reservation policy differs from the assigning reservation policy. Storage reservation policy must be applied directly on datastores. Go to Infrastructure – Compute Resources – Compute Resources
By default vCAC will assigns DHCP IP Address to all machine it can provision. DHCP is ok for non-production Server VMs but production Server VMs needs IP address. Probably we never need to worry about Desktop VMs as far as networking policies are considered. To allocate static IP is the primary intention of network profiles. It is way to create a pool of IPs using a pre-defined. You can apply network profiles while creating reservation or while creating Blueprint.
Network profiles do not apply to AWS
Fabric Administrators defines the IP ranges, subnet mask, DNS, DHCP, WINS (does it exist yet???), DNS suffix and combine all these values into single profile referred as network profile. Network profile like reservation policies can be applied to the reservation, blueprints.
Create a Network Profile for Static IP Address Assignment
Login as fabric admin, navigate to infrastructure –> reservations –> New Network Profiles –>External
1) Name of network profile –Append the name with type of profile e.g. Production External
2) Subnet mask for the network range
3) Gateway ( for NAT type network profile this field is compulsory)
4) Primary DNS server
5) DNS Suffix
6) Click on IP Range tab. Below screen enter IP Address you need to reserved for this profile. Provide name and description. Press OK once done
After you press OK, below screen displays IP range and allocation status in status column.
Now we have network profile, we need to assign it to reservation. Below here I’m assigning it to existing reservation. Go to Infrastructure –> Reservations –> Edit Existing Reservation configured. For network path “VM Network” select network profile from drop down menu. Press OK
So in this post we learn the importance of reservation policy. How to configure reservation policy. We learnt about storage reservation policy and how to configure storage reservation policy. Storage reservation policy needs to applied to compute resource, while reservation policy needs to be configured at reservation screen. Then we went and checked the Network profile, it’s use cases. Finally we learnt How to configure network profile so that static IP’s can be assigned to Servers.
Next post I will be discussing how to create and configure vCloud Automation Center 6.0 (vCAC 6.0) Blueprints