bco1883-deploying an active active datacenter with srm 5_final_us.pdf

7/27/2019 BCO1883-Deploying an Active Active Datacenter with SRM 5_Final_US.pdf

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Deploying an

Active/ActiveDatacenter with SRM 5

Michael Bailess, American National Bank

Joe Kelly, Varrow

INF-BCO1883

#vmworldinf


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2

Disclaimer

This session may contain product features that are

currently under development.

This session/overview of the new technology represents

no commitment from VMware to deliver these features in

any generally available product.

Features are subject to change, and must not be included in

contracts, purchase orders, or sales agreements of any kind.

Technical feasibi lity and market demand will affect final delivery.

Pricing and packaging for any new technologies or features

discussed or presented have not been determined.


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VMworld 2012www.varrow.com www.amnb.com

Session:INF-BCO1883Speaker:Joe Kelly

Speaker:Michael Bailess

Speaker:Greg Camp

Technical Level: TechnicalArea of Interest: Financial Services

Breakout Session

Deploying an Active/Active Data Center

with VMware SRM 5.x


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VM mobility across any distance with the ease of areboot

Application shifting across datacenters. PerpetualDR testing. What we deem as Active/Active

Key features of SRM 5 and EMC RecoverPoint that

will get you there

Key Takeaways


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Introduce who we are, our challenges and ourexpectations

Discuss design constraints and clearly redefine ourActive/Active Datacenter

Explain our Design, Technology used and Networking

Q&A

Agenda


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Community bank with assets of $1.3 billion,

Headquartered in Danville, VA with 25 banking offices

in Virginia and North Carolina

Serving the community for 103 years

2 data centers, 310 VMs total

Per-virtual data center resources CPU: 60ghz

Memory: 192GB

Storage: 20tb

AMNB Who We Are


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DR Site was basically a data vault

No proven DR plan

Data center network was active at onlyone site concurrently

No load-balancing

AMNB Legacy Setup


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Failover of applications not the entire data center

Failover to be transparent to users and applications

Utilize our total investment

Minimize cost and complexity

Partner involvement to back us up

AMNBs Expectations


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Value Added Reseller (VAR) in the Southeast known for thequality of our engineers; we focus on supporting ourcustomers business with technology where it makes sense

VMware Business Continuity Competency Partner of the Year2011 Americas

We know the data center; it is our focus, we are not designed

to be the solution to all your technology purchases

We have established a growing community of Varrowcustomers that is built on trust and a passion for technology

Varrow Who We Are


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100MB dedicated line between DCs with ~20ms latency.

Physical distance was only ~60 miles, right at supported100km range for vMotion over distance. However,latency requirements were not.

No L2 adjacencies. Changing IP addresses was far fromtransparent.

Environment Variables to Contend with(Constraints)


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Protection from logical corruption, Mirroring replication

technologies were not sufficient.

Efficiencies across the pipe were needed. Compressionand bandwidth throttling. Mixing replication andServer traffic.

Minimizing RTO (Recovery Time Objective)

Environment Variables to Contend with(Constraints)


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Dubbed Active/Active Datacenters

Making the location transparent to the end user

The same level of service can be provided at anotherlocation as it can to the primary location

Redefining Active/Active Solutions


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Active network and compute stacks at both locations,ideally stretched VLANs.

Storage writes are written locally and replicated toother site

Manual load balancing

Redefining Active/Active Solutions


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No Shared R/W storage between sites

No dynamic load balancing between sites

No high availability between sites

ESXi clusters are site bound

This is Not a Stretched Cluster Solution


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Both require more complex networking solutions

L2 adjacencies are required for stretched clusters andHighly desired for Active/Active datacenters.

But There are Commonalities


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Ask yourself

How many applications/VMs actually require live cross-site vMotion a la Active/Active storage solutions (VPLEX)

Are cross-site (Active/Active datacenters) cold

migrations (via RP and SRM) an acceptable alternativegiving the operational overhead and cost of the latter?

What Level of Application MobilityDo You Need?


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Why 5.x over 4.x

Planned Migration: ensures changes are replicated Shut down VM, synchronize storage, stop workflow on error

Conversely, DR will not stop the workflow on error

Automatic failback, i.e., reprotection, allows for workflow

based recovery of your failed over VMs back to yourprimary site

VMware Site Recovery Manager


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Replication engine Journaling Technology

Multiple points in time (every write) for recovery

Out of the data path replication

WAN compression, throttling and Dedupe

Reduces complexity during failover operations

Bi-directional replication

EMC RecoverPoint


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No cross site distributed volumes are required.This reduces complexity and added expense.

Per application mobility from one site to another with theease of a per VM reboot Not all environments require 100% uptime

Bring the applications closer to the most critical users in

some cases

Increased operational utilization across sites

Ongoing, fully tested DR Plan

Summary of What Our Design Offers


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VMFS datastores structured according to application

Single datastore in this use case but could be many

supporting a single app

One Datastore per Consistency Group, one datastoreper Datastore group

Note: datastore may include multiple VMs

One Protection Group per Recovery Plan. Mappedaccording to application.

Some of the Details


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What level of recoverability are you accounting for? DR only Secondary site is a data vault. Testing is limited.

Internal vSwitch only tests availability. Cross Environment Isolation Testing Hardest to design for as

you must consider external dependencies (both virtual andphysical)

Rolling Failover more planning up front but greater

assurance of success.

Know your dependencies

and now lets talk networking

Words of Advice


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Stretched Vlan via Metro Ethernet Traffic ingresses and egresses one data center

VM Mobility using Cisco LISP Traffic ingresses and egresses at local data center

Stretched Vlan with FHRP Isolation

Traffic ingresses one data center and egresses local data center

VM Mobility Options


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Stretched Vlan via Metro Ethernet Does not utilize WAN links from both data centers

VM Mobility using Cisco LISP Requires two Nexus 7ks which is cost prohibitive

Stretched Vlan with FHRP Isolation

Egress traffic uses local data center path, most traffic is egressin this customer scenario

VM Mobility Choice


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Use Vlan ACL to block HSRP traffic betweendata centers

Use any Cisco switch that is capable of using Vlan ACLs(i.e., Cisco 2960, 3560, etc.) at either data center

Vlan ACL is applied inline on Layer 2 Metro Ethernet link

FHRP Isolation


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FHRP Isolation

Edge Router

Layer 3

Switch

Layer 3

Switch

Edge Router

MPLS

Metro Ethernet

Block HSRP

Traffic

HSRP VIP:

10.10.1.1

HSRP VIP:

10.10.1.1

Layer 2

Switch

Site A Site B


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VM Mobility using Cisco Cloud Services Router Cisco is offering a router in a VM

Redundant Layer 2 Link Leverage OTV Layer 2 extension on Cisco Cloud Services Router

Use existing Cisco 2951 router with Ethernet over MPLS over GRE

Future Options


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Thank You!Any Questions?

e: [email protected]

t: @virtualtacit

w: blog.virtualtacit.com


t: @bailessm

w: amnb.com



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FILL OUT

A SURVEY

EVERY COMPLETE SURVEY

IS ENTERED INTO

DRAWING FOR A

$25 VMWARE COMPANY

STORE GIFT CERTIFICATE


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Deploying an

Active/ActiveDatacenter with SRM 5

Michael Bailess, American National Bank

Joe Kelly, Varrow

INF-BCO1883

#vmworldinf

bco1883-deploying an active active datacenter with srm 5_final_us.pdf

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