Private Cloud Academy: Backup and DPM 2010

Private Cloud Academy
Aidan Finn
aidan.finn@systemdynamics.ie
Paul Hall
Paul.Hall@systemdynamics.ie

3/25/2011
2
System Dynamics - Overview
Established 1968
Acquired 1997 from UK parent by current management
Ireland’s largest indigenous IT Business
Solutions Company
Winner of Deloitte Best Managed Companies Awards 2009, 2010 and 2011
Hyper-V and System Centre
SharePoint
ASP.NET, SQL, InfoPath

One of four modules
Module I: Hyper-V and Private Cloud Computing
Module II: Managing Hyper-V (14 January 2011)
Module III: Hyper-V and Data Protection Manager (Today)
Module IV: Windows Server 2008 R2 Service Pack 1 (20 May 2011)
Very important that we learn from today so please fill out your feedback forms.

About Aidan Finn
Infrastructure Team Lead at System Dynamics
http://www.systemdynamics.ie
Working in IT since 1996
MCSE & MVP (Virtual Machine)
Experienced with Windows Server/Desktop, System Center, virtualisation, and IT infrastructure.
Blog: http://www.aidanfinn.com

Mastering Hyper-V Deployment
600 pages of how to do a Hyper-V project A-Z

Also
Mastering Windows Server 2008 R2 (Sybex, 2009) - 4 chapters
Mastering Windows 7 Deployment (Sybex, 2011)
10215A: Implementing and Managing Microsoft Server 2008 R2 Virtualization – Technical reviewer

Agenda
Breaking news from MMS 2011 (Level 100)
Hyper-V cluster design & backup (Level 400)
Introducing DPM 2010 (Level 100)
Protecting Hyper-V and workloads (Level 300)
Site-to-site replication for DR (Level 300)

Breaking News From MMS 2011

SCVMM 2012 Beta
System Center Virtual Machine Manager 2012 Beta
A big leap forward!

Fabric Management
Hyper-V and cluster lifecycle management – deploy hosts from bare metal and create clusters
Third Party Virtualization Platforms - Citrix XenServer and VMware ESX Hosts and Clusters
Network Management – Manage IP Address Pools, MAC Address Pools and Load Balancers
Storage Management (SMI-S) – Classify storage, Manage Storage Pools and LUNs

Resource Management
Dynamic Optimization – proactively balance the load of VMs across a cluster
Power Optimization – schedule power savings to use the right number of hosts to run your workloads – power the rest off until they are needed.
PRO – integrate with System Center Operations Manager to respond to application-level performance monitors.

Cloud Management
Abstract server, network and storage resources into private clouds
Delegate access to private clouds with control of capacity, capabilities and user quotas
Enable self-service usage for application administrator to author, deploy, manage and decommission applications in the private cloud

Service Management
Define service templates
Compose operating system images and applications during service deployment
Scale out the number of virtual machines in a service
Service performance and health monitoring integrated with Ops Mgr
Decouple OS image and application updates through image-based servicing.
Server application virtualization technologies such as Server App-V

Project Concero
Portal application
Integrated public (Azure) and private (SCVMM) cloud management
Still early days

DPM 2012
Some details revealed
New approach to VSS
Item level recovery from VHD, even when DPM in a VM
Manage many DPM servers from OpsMgr
Role-based administration
Can upgrade DPM 2010

Hyper-V Cluster Design & Backup

Why Are We Talking About This?
Let’s do some recap
And discuss some concepts

Backup Strategies
There are 3 types of VM backup you can do with Hyper-V (mix ‘n’ match):
Treat the VM as a physical machine
Backup everything
Limited usefulness in Hyper-V world
Backup just the changing data
Limited backup traffic and more frequent
Backup the VM at the physical storage level
Replace the “bare metal recovery”

Backup Like a Physical Machine
Backup
DPM Agent

Backup Just The Changing Data
Backup
DPM Agent

Storage Level Backup

Backup
VSS Provider
Backup, e.g. DPM 2010
CSV LUN

Volume Shadow Copy Service (VSS)
VSS is used in storage level backup
By default the system (software/Windows) VSS provider is used
Slow
VM backup must be “serialized”

Serialization
Groups VMs
DPM can only backup 1 group at a time
Recommended strongly by MS when using system VSS provider for storage level backup
“Recovery Point Creation Failed”
http://technet.microsoft.com/en-us/library/ff634192.aspx
Set registry key value
Run DSConfig.ps1 on a protected cluster host
Store DataSourceGroups.xml at %PROGRAMFILES%Microsoft DPMDPMConfig on DPM server

Hardware VSS Provider
Try to choose hardware SAN with hardware VSS provider
Faster
No need to serialize
Must have VSS support for CSV

Linux & VSS
VSS is a feature of Windows
No Linux support for VSS
Compatible Windows VMs suffer no downtime
Two options
Stop VM, backup, start VM (requires scripting)
Treat the Linux VM as a “physical” server
Don’t backup at storage level

Reminder: Redirected I/O
Exclusive access required to all files for file system operations, such as VSS snapshot.
How is that done?
CSV coordinator takes over all files.
Other host I/O redirected via CSV Coordinator.
Also provides storage path fault tolerance.

Redirected I/O Illustrated

So What?!?!?
Backup of 1 VM on CSV causes Redirected I/O for all
Need to consider bandwidth and latency for Redirected I/O
The storage performance of every VM on a CSV will be impacted
What about active/active multi-site clusters?
And we haven’t talked about:
Performance (IOPS)
Storage level replication policies
Storage fault tolerance

Host Design for CSV
All identical OS builds & configurations
Almost identical hardware
Identical drive letter (C:) for %systemdrive%
NTLM (NT LAN Manager) must be enabled
SMB enabled on each network that may be involved in CSV:
Client for Microsoft Networks
File and Printer Sharing for Microsoft Networks

Host Networking
Microsoft recommends host as follows:
NIC1: Parent partition
NIC2: Virtual machine networking
NIC3: Live Migration (private network)
NIC4: Cluster Shared Volume (private network)
NIC5 & NIC6: iSCSI (for iSCSI SAN only)
Some variations
HP Flex10 for blades
Backup network NIC
CSV NIC used for Redirected I/O
Label NICs identically on all hosts

Specifying CSV NIC
CSV will automatically use the private (not routed) network with lowest metric
You can force CSV to use a network using PowerShell:
CSV NIC labeled as “CSV Network”
$n = Get-ClusterNetwork “CSV Network”;$n.Metric = 1033
You can reset to automatic metric with:
$n = Get-ClusterNetwork “CSV Network”;$.AutoMetric = $true

How Many CSVs And How Big?
No right answer
Use assessment or performance monitoring data to figure out how many VMs in CSV
Use IOPS from assessment VS IOPS capabilities of storage from manufacturer
Consider VM placement
Clustered or load balanced VMs should be on different storage
“All your eggs in one basket”

Backup Impact on CSV Design
Define backup requirements for VMs
Storage level backup once per night/week/month?
Data backup?
DR replication
Maybe start the on-paper design with one CSV
Divide into smaller CSVs to limit impact of redirected I/O
Backup policy
Affinity/fault tolerance
Storage level replication
Don’t forget IOPS

Private Cloud Tough To Design
No assessment data
Nothing to P2V
Nothing to assess
You have no empirical data to size from
Private cloud is like a Kevin Costner movie
“If you build it, they will come”
My tip:
Build a pilot environment
Deploy VMs onto different sized VMs
Backup each CSV
Measure performance and size accordingly

Some Common Approaches to CSV
One CSV per host
One CSV coordinator role assigned per host
Start with one or two CSVs
Monitor storage performance with OpsMgr
Grow CSVs as required
Add CSV before performance degrades
Some do scripting to control Redirected I/O:
Live migrated CSV VMs to CSV coordinator host
Perform CSV backup

RAID and VM/VHD Placement
RAID 5 gives the most capacity
RAID 5 loses maybe 75% of write speed
Rule of thumb:
If you would deploy RAID 10/5 for a physical box for performance, then place the VM/VHD on RAID 10/5 CSV
Complicated by disk group/virtual disk in modern SAN
Consult your storage vendor on best performance VS capacity

Fast Track Reference Architecture

Cluster/CSV Summary
Understand requirements for:
Backup
DR replication
Design cluster networking according to best practices
Design CSV according to requirements for:
Backup policy
Performance (IOPS & Redirected I/O)
DR storage level replication
Fault tolerance

Backup Software
For storage level backup
You can use any backup product certified for Windows Server 2008 R2 Hyper-V
Test before you buy/use
Cluster VM location awareness
CSV support
For VM level backup
Any backup product should work – check with vendor for support of agent in VM

Introducing DPM 2010

System Center Data Protection Manager 2010
Microsoft’s backup solution
Private cloud and Dynamic Datacenter
Best of breed for protecting Microsoft products
SQL Server, Windows Server, Windows client, Sharepoint, Exchange, Dynamics, and so on
License as:
Server & agent (Client, Std or Ent)
System Center Management Suite
Enrolment for Core Infrastructure
SCE + DPM + agent

Additional DPM 2010 Features
Improved storage: auto grow and self healing
SharePoint 2010 infrastructure awareness
Automatic protection of new SP/SQL resources
Self-service
Hyper-V CSV support
VM, workload, or bare metal backup and restore
D2D, D2T, and D2D2T backup
PowerShell cmdlets
Site-to-site replication AKA DPM2DPM4DR

Scalability
100 Servers, 1000 Laptops, up to 2000 Database per Server
Up to 80 TB per DPM server

DPM Backup Is A Little Different
Deploy disk storage/tape library
Disk shared by many backup policies
Deploy a single all-purpose agent to protected machine
Create a protection group (backup policy)
Defines what you backup/when/retention policy
Agent synchronises with DPM server
Block level changes since last backup are replicated, maybe every 15 minutes, via VSS
Recovery points are created
Maybe 3 times/day. You restore from these.

DPM Requirements
Check TechNet
Too many variations to include here
Depends on OS and software
Please install required patches
D2D storage pools
Use “cheap” SATA disk
Rule of thumb sizing: 2.5 – 3 times protected disk space
Storage calculators available for free download

Protecting Hyper-V And Workloads

Reminder …
We have 3 ways we can backup:
Storage/host
Treat the VM like a physical machine
Backup the changing data
We need to associate backup policy with virtual machine CSV placement
To control Redirected I/O

Scenario 1: Problem
Protect 2 VMs
File1 (File Server):
Backup entire VM once/week
Backup file shares 1 time/day
SD-SQL1 (SQL Server):
Backup entire VM once/day
Backup databases 3 times/day
Minimise impact on network for backup activity

Scenario 1: Solution – Part 1
Place File1 on CSV1
Create protection group for all VMs on CSV1
Backup once per week
Install agent on File1
Create protection group: select file shares
Synchronise every 15 minutes
Restoration point 1 time per day

Scenario 1: Solution – Part 2
Place SD-SQL1 on CSV2
Create protection group for all VMs on CSV2
Backup once per day
Install agent on SD-SQL1
Create protection group: select all databases
Synchronise every 15 minutes
Restoration point 3 times per day

Site-to-site replication for DR

Disaster Recovery Problem
A legal or desired requirement for many organisations
Many solutions, including:
Point solution replication: complicated and sometimes delicate
Storage replication: expensive hardware/licensing/networking and the domain of big corporations

Site-to-Site Replication

Site A Hosts
Site B Hosts
DPM 2010
DPM 2010
Storage Pools
Storage Pools

Disaster Recovery Solution
What is a virtual machine, really?
Just a few files
Files are easy to backup and replicate
DPM 2010 backs up Hyper-V VMs
DPM server in Site A can replicate storage pools to other DPM server in Site B
Scheduling and bandwidth throttling
Can restore VMs to alternative hosts/clusters in Site B
Admin console or by (scheduled) script

Scenario 2: Problem
Be able to restore File1 and SD-SQL1 to DR site (from Site A to Site B)
Recover entire VM and business data to within a few hours
Consolidate vendors
Minimise costs
Hardware, software, and network
Minimise complexity

Scenario 2: Solution
Deploy Hyper-V hosts in Site B
Deploy replica DPM server in Site B
Configure protection group:
Site A DPM database
File1 and SD-SQL1 VMs
File1 shared folders & SD-SQL1 databases
Invocation plan:
Recover File1 and SD-SQL1 on Site B hosts
Recover File1 shares and SD-SQL1 databases

Protecting Non-Microsoft Products

Cross-Platform Protection
DPM 2010 protects only Microsoft products
i365 have created a DPM-based appliance with addition protected products
Physical and virtual appliance
Protected products include:
VMware
RedHat and SUSE Linux
Solaris, HP-UX, AIX, IBM i, NetWare
Oracle databases

Action
Contact us for virtualisation assessment
1 free day of consulting for today’s attendees (per organization)
Help you determine the right strategy for you
01 4830355

One of four modules
Module I: Hyper-V and Private Cloud Computing
Module II: Managing Hyper-V (14 January 2011)
Module III: Hyper-V and Data Protection Manager (Today)
Module IV: Windows Server 2008 R2 Service Pack 1 (20 May 2011)
Very important that we learn from today so please fill out your feedback forms.

Did I Stay On Schedule?
Sales
http://www.systemdynamics.ie
Aidan Finn
Aidan.Finn@systemdynamics.ie
@joe_elway
http://www.aidanfinn.com

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Private Cloud Academy: Backup and DPM 2010

by Aidan Finn on Apr 27, 2011

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Private Cloud Academy: Backup and DPM 2010 — Presentation Transcript