Sponsored Books by Packt Publishing

Like some of you maybe already know, I have something like a tradition.

Every event I’m leading or I’m speaking at, I sponsor one or more books for the audiance.

My Partner Packt Publishing sponsored 12 Books as give aways.  :)

Book Title
Hyper-V Network Virtualization Cookbook
Windows Server 2012 R2 Administrators Cookbook
Chef Infrastructure Automation Cookbook – Second Edition
Managing Microsoft Hybrid Clouds
Microsoft System Center 2012 R2 Operations Manager Cookbook
Mastering Windows PowerShell Scripting

WP_20150627_09_24_23_Pro

Why you should also plan your storage structure when working with clusters Part#1 Single Storage

Hi everybody,

today I want to talk a bit about “why you should think about your storage structure when planning a cluster”.

Now most of you think “hey why thinking, I ask the storage guy to create a new LUN für me and thats it.”

Sorry guy’s theres the mistake. What if the storage guy provisions your new LUN on the same diskgroup like you others or on a full storage? What if the diskgroup or storage failes?

Within this post, you will get some of my personal best practices how to provison LUNs and cluster share volumes on Storages and diskgroups.

Let us start with an easy one.

 

What you should do is to create two disk groups. Yes you will lose some diskspace depending on the raid level but we are talking about redudancy and to minimize service outages. So a lose of diskspace shouldn’t be a problem.

Diskpool

Now you need to decide which RAID you want to use on your disk pool. Here it depends from storage to storage if you have SSD Disks as level 0 cache which most enterprises use, you can decide to use RAID 5 to enhance your capacity otherwise you should use RAID 10 to encrease your IO performance. NEVER use RAID 0!!!!

For the best storage capacity to perfomance relation for your storage, please talk to your storage vendor. He can tell you :)

Diskgroup

Now you decide you LUNs that will provisioned on the Storage. Here you should use a designe which is logical for you. For me it depends on the cluster service I run. I will show you one of the most common and understandable ones.

LUN

At least comes the Windows Server Cluster Magic. Dependig on the cluster service you are running, you should now deploy the services and rolles on the different cluster shared volumes.

I will try to show it with the example Scale Out Fileserver and Hyper-V.

 Microsoft Hyper-V  Microsoft Scale Out Fileserver
 hyper-V Place
 SoFS Place

So that’s all for today, I hope that blogs helps you out a bit.

SoFS|W2k12R2|2x1GB|4x10GB|4xFC

Scale out Fileserver Cluster Network configuration with following parameters:

The following configuration leverages 2x 1GB Ethernet, 4x 10GB Ethernet NICs and LOM (LAN on Motherboard) and 2x Fibre channel connections. There are 4 NICs useable for SMB 3.x.x Multichannel.

The storage is provisioned to the Scale out Fileserver Hosts via Fibrechannel.


 Pro’s and Con’s of that solution

 Pro Con
– High Bandwidth
– Full fault redundant
– Fibrechannel ist most common SAN technology
– many NICs
– a lot of NICs and Switches needed
– a lot of technologies involved
– no separed Team for Cluster and Management
– expensiv

 Switches

Switch name Bandwidth Switchtyp
1GBE SW01 1 GBit/s physical stacked or independed
1GBE SW02 1 GBit/s physical stacked or independed
10GBE SW01 10 GBit/s physical stacked or independed
10GBE SW02 10 GBit/s physical stacked or independed
FC SW01 4/8 GB FC/s physical stacked or independed
FC SW02 4/8 GB FC/s physical stacked or independed

 Neccessary Networks

Networkname VLAN IP Network (IPv4) Connected to Switch
Management 100 10.11.100.0/24  1GBE SW01 & 1GBE SW02 (via NIC Team & VLAN Tagging)
Cluster 101 10.11.101.0/24  1GBE SW01 & 1GBE SW02 (via NIC Team & VLAN Tagging)
SMB 01 200 10.11.45.0/24  10GBE SW01
SMB 02 200 10.11.46.0/24 10GBE SW02
SMB 03 200 10.11.47.0/24 10GBE SW01
SMB 04 200 10.11.48.0/24 10GBE SW02
FC 01 FC SW01
FC 01 FC SW01

 Possible rearview Server


 Schematic representation


Switch Port Configuration

   
 

QoS Configuration Switch

Networkname Priority
Management medium
Cluster high
SMB Traffic High

 

New free eBook Microsoft System Center Data Protection for the Hybrid Cloud

Hey everbody,

Microsoft offers a new free eBook written by Shreesh Dubey, Vijay Tandra Sistla, Shivam Garg, and Aashish Ramdas. Within the book you can read some really usefull things, how to Backup your Microsoft Hybrid cloud.

You can find the book here: Download

HyperV|W2k12R2|3x1GB

Done use that configuration in production! It’s only for lab use!

This configuration is very similar to the 4x 10Gb Ethernet config but not useable for production.

Hyper-V Cluster Network configuration with following parameters:

The following configuration leverages 3x 1GB Ethernet NICs and LOM (LAN on Motherboard). The storage can be connected via iSCSI with MPIO or SMB 3.x.x without RDMA. The configurations uses physical configuration and software defined / converged network for Hyper-V.


 Pro’s and Con’s of that solution

 Pro Con
– Easy to build and good for lab use
– enougth bandwidth for test workloads
– fully converged
– limited bandwidth
– no production use
– cheap to build

 Switches

10GBE SW01 1 GBit/s physical stacked or independed
10GBE SW02 1 GBit/s physical stacked or independed
SoftSW01 1 GBit/s Software defined / converged

 Neccessary Networks

Networkname VLAN IP Network (IPv4) Connected to Switch
Management 100 10.11.100.0/24 SoftSW01
Cluster 101 10.11.101.0/24  SoftSW01
Livemigration 450 10.11.45.0/24 SoftSW01
Storage 400 10.11.40.0/24 SoftSW01
Virtual Machines 200 – x 10.11.x.x/x SoftSW01

 Possible rearview Server


 Schematic representation


Switch Port Configuration


Bandwidth Configuration vNICs

vNIC min. Bandwidth Weight PowerShell Command
Management 10%
Cluster 5%
iSCSI 30%
Livemigration 30%

QoS Configuration Switch

Networkname Priority
Management medium
Cluster high
Storage high
Livemigration medium
VMs dependig on VM Workload