hotlink dr express
TRANSCRIPT
HotLink DR Express 3.0- DR on AWS -
21/02/2014
HotLink DR Express
RTO: Recovery Time Objective
‘How long will it take for the system to be operational after a disaster?’
- RTO is an agreed target of the maximum time taken to restore a service – e.g. 8 hours
HotLink DR Express
RPO: Recovery Point Objective
‘How much data will I lose?’
-RPO is an agreed target of the maximum amount of data loss acceptable after a disaster
-Typically specified in hours since the last good backup
Traditional DR ModelsCold Standby – Offsite backup tape storage. Maybe dedicated replacement hardware/facilities in storage. [RTO=weeks, RPO=24hrs]. Cheap(ish)
Warm Standby @ Secondary Datacenter – Dedicated Datacenter, periodic replication of some data. [RTO=hours/days, RPO=15mins-24hrs] Expensive but essential for many.
Hot Standby @ Secondary Datacenter – Expensive real-time replication of data, automated failover. [RTO<5 mins, RPO=sub-second].Too expensive for most.
DR
-RTO in minutes/VM
-RPO Configurable for each individual VM - (typically 15 mins to 2 hours)
+ Backup
- Consolidate older Recovery Points to once per day (configurable). Store up to 500 Snapshots/VM
HotLink DR Express
HotLink DR Express – AWS Components
Datacenter Equivalent Amazon AWS Equivalent
vSphere VM - Virtual Machine EC2 - Elastic Cloud Computing
- 1vCPU, 2GB RAM - m1.small
- 1vCPU, 4GB RAM - m1.medium
- 2vCPU, 8GB RAM - m1.large
- 4vCPU, 16GB RAM - m1.xlarge
Primary Storage (SAN) EBS - Elastic Block Storage
Near-Line Storage (disk-based backup data, archives)
S3 - Simple Storage Service
Internet Firewall ‘Security Groups’
Datacenter LAN VPC – Virtual Private Cloud
WAN ‘Hardware VPN’ (+VPC)
(rough guide for VMWare admins unfamiliar with AWS – AWS capabilities differ from VMWare and can’t be accurately compared)
Hyp erviso r Host (ESX Server)
Virtual M ach ines
Primary (SA N) Storage
Near-Lin e (Backu p) Storage
Network Sw itches
Netwo rk Firewall
Intern et Co nnectio n
Hyp erviso r Host (ESX Server)
Virtua l M ach in es
Primary (SA N) Storage
Near-Lin e (Backu p) Storage
Netwo rk Sw itches
Netwo rk Firewall
Intern et Co nnectio n
Replication
Replication
Po wer and Coo lin g
Rack/Floo rs pace
Po wer and Coo lin g
Rack/Floo rs pace
DC M an agem ent DC M an agem ent
Production Datacenter
DR Datacenter
Traditional Warm/Hot Standby VMWare DR
Production Datacenter
Hyp erviso r Host (ESX Server)
Virtual M ach ines
Primary (SA N) Storage
Near-Lin e (Backu p) Storage
Network Sw itches
Netwo rk Firewall
Intern et Co nnectio n
AW S Cloud - BAU
Near-Lin e (S3) Storage
Network Firewall (VPN )
Replication
Po wer and Coo lin g
Rack/Floo rs pace
DC M an agem ent
HotLink DR – Business as Usual state (no disasters)
Production Datacenter
Hyp erviso r Host (ESX Server)
Virtual M ach ines
Primary (SA N) Storage
Near-Lin e (Backu p) Storage
Network Sw itches
Netwo rk Firewall
Intern et Co nnectio n
AW S Cloud - BAU
Near-Lin e (S3) Storage
Network Firewall (VPN )
Replication
Po wer and Coo lin g
Rack/Floo rs pace
DC M an agem ent
HotLink DR – Business as Usual state (no disasters)
AW S Cloud –DR Invoked
Virtual M ach in es (EC2)
Primary (EBS) Storage
Near-Lin e (S3) Storage
Netwo rk Firewall (VPN )
How it works – Backups & ReplicationHotLink DR Express automatically: -Clones a VM
-Converts VM from VMWare to AWS EC2 format
-Uploads VM to AWS S3 Storage
-Takes periodic snapshots and uploads changes to AWS S3
HotLink DR Express
How it works – RecoveryHotLink DR Express automatically: -Moves selected VM Snapshot from S3 to EBS
-Creates EC2 VM
-Powers on EC2 VM with attached storage
-Connects EC2 VM to VPC network and assigns DHCP IP Address
HotLink DR Express
What it looks like – Admin consolesProtection, replication and recovery all performed through familiar vCenter console
vCenter plugin shows protection options – can enable/disable protection and set/modify RPO and consolidation of snapshots easily per VM
HotLink DR Express
HotLink DR Express
What it looks like – Admin consoles2 additional Datacenters shown in vCenter:-‘DR Express’ – shows ‘shadow’ versions of production VMs. Select a snapshot from here to recover (using standard snapshot manager menu)-‘EC2’ – shows recovered VMs, running on EC2
HotLink DR Express
Recovery Features-Can recover single VM to multiple points in time
-Recovered VMs include their snap timestamp in their VM name
-All recovered VMs auto-configured for DHCP when started on EC2 – can modify IP settings after boot.
-Can recover VMs individually, or in batches
-Recover to EC2, or back to your datacenter (after DR event is over)
HotLink DR Express Whole Datacenter failover
Requires additional planning, additional components:- Secondary vCenter installation running on AWS
AWS VPC – Example Configuration
Component Limit Comments
VPCs per region 5
Subnets per VPC 200Internet gateways per region 5 One per VPCVirtual private gateways per region 5 One per VPCCustomer gateways per region 50
VPN connections per region
50 Ten per virtual private gateway
Route tables per VPC 10 Including the main route table
Entries per route table 20
Elastic IP addresses per region for each AWS account 5 Amazon EC2 has a separate limit for its Elastic IP addresses per region for each AWS account
Security groups per VPC 100
Rules per security group 50
Security groups you can assign to an instance in a VPC 5
Network ACLs per VPC 50
Rules per network ACL 20
BGP Advertised Routes per VPN Connection 100
AWS VPC Limitations (acceptable)
HotLink DR Express
Supported PlatformsHost Platforms- Amazon EC2 (all regions worldwide)Guest Operating Systems- Red Hat Enterprise Linux Server 5 (RHEL 5.4, 5.6, 5.8)- Red Hat Enterprise Linux Server 6 (RHEL 6.0, 6.2)- CentOS versions of these Red Hat releases- Windows Server 2008 R2 and R2 SP1- Windows Server 2012VMware vCenter- VMware vCenter 5.1
Current Supported Version = vSphere 5.1[Support for vSphere v5.5 expected very soon (Q1 ‘14)]
Initial replication (seed) of VMs is dependent on Internet Bandwidth at primary datacentre, could take a while to protect large environments-Can use Amazon Connect (avail through some ISPs)
HotLink DR Express
Cheap – only pay for DR resources when you need them
Reliable AWS infrastructure (including S3 Storage)
Familiar vCenter integration
Unique technology to translate VMWare and EC2 Images
Affordable initial investment – start small (30VMs) and scale up as required.
HotLink DR Express
Unique Capability use case – DR protection in a hurry
“Bob is the CIO of a small/medium enterprise (100 production servers). Regulatory requirements require a Business Continuity Plan. He has 2 weeks to install configure and test an IT Disaster Recovery plan before a compliance Audit”
- Deploy infrastructure in as little as a single day (depending on networking requirements)
-Initial Seeding performed in batches, can be fully protected within days (bandwidth dependent)
- This can be reduced with Amazon Web Connect-Can demonstrate recovery capabilities at any time without impacting production servers
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