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Kronos Private Cloud

Protecting Thousands of VMs

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AGENDA• A Bit about Kronos

• A Clear Business Case – Needed a Clear Solution

• Our Journey – From Flatbed Truck to Ferraris

• Infrastructure Highways

• Onboarding Workloads

• RPO / RTO

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$1Billion Global Workforce Solutions Company

Using Kronos solutions every day

30,000+ organizations……employing 40+ million people…in more than 100 countries

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ONE UNIFIED PLATFORM FOR YOUR ENTIRE WORKFORCE

ATTRACT AND RETAIN TALENT

ENGAGE YOUR WORKFORCE

MANAGE EMPLOYEE LIFECYCLE

Benefits

Human

Resources

Payroll

Leave

Scheduling

Time & Attendance

Compensation

Performance

Recruiting

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90+%of new customers

choose Kronos Cloud

20,000+in the Kronos Cloud!

Breathtaking growth rate

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A Clear Business Case

• Beat Customer expectations with everything we do

• Enterprise class – Must scale with business growth non-disruptively

• Improved and predictable recovery solution

• Automated onboarding of workloads to product

• Solution to eliminate or effectively minimize source workload contention

The Partner Selection was Critical

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Journey from replicating a few individual workloads on a Flatbed Truck…….

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… to replicating all workloads as 6,000 finely tuned Ferraris!

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Ferraris for everybody sounds great….

QUESTIONS TO ASK

• Ensure our “highways” are big enough for our workload peaks

• Safely onboard existing production workloads?

• Test our recovery plan’s ability to meet the stated RPO/RTO requirements?

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First…let’s lay the groundwork for discussion…

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Hosting Environment Overview

• What were we required to protect?

• SOME quick numbers…

• Quick Facts

• 100% vSphere – 5.5u3 / 6.0u2

• +760 ESXi hosts (rack/blade mixture)

• 27 HP 3PAR arrays (P7400/P8400)

• +5,700 Virtual Machines

• 2.3 Petabytes Thick Provisioned VMDK under Zerto protection

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1. Infrastructure Highways

RPO within seconds as long as the following infrastructure components can accommodate peak write IOPS:

Network

Storage

Compute

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Highways – Network

4. Determine Your Workload Peak!!

AGGREGATION

3. Host level?

2. Chassis/TOR?

1. Distribution?

0. WAN?

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Highways – Storage Utilization

Utilization : How much space is needed at the DR site?

• Determine your journal history requirements

• Back of the napkin math to include Journal/Scratch:

REQ = (# of protected workloads * 60 GB) * 2 +

(thin provisioned storage utilization of source array)

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Performance: How much performance is required at the DR site?

FOLLOW THAT IO…

Highways – Storage Performance

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Highways – Compute

• VRAs

• Doubled vRAM (3GB -> 6GB)

• Doubled vCPU (1 vCPU -> 2 vCPU)

• ZVM (recovery side)

• vCPU = 8

• vRAM = 16GB

• vCenter (recovery side)

• vCPU = 8

• vRAM = 24GB

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Consistency

Contention

2. Onboarding Workloads

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REST APIs… hooray 4.5u3!

Onboarding - Consistency

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Zerto doesn’t touch your source array, except for…

• Init Syncs

• Delta Syncs

Onboarding – Contention

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Cluster 4

16 hosts / VRAs

Cluster 3

16 hosts / VRAs

Cluster 2

16 hosts / VRAs

Cluster 1

16 hosts / VRAs• VRA built in throttling is very

effective

• Take a metered approach aligning with storage capability

16 x 72 IOPS = 1152 Read IOPS

16 x 72 IOPS = 1152 Read IOPS

16 x 72 IOPS = 1152 Read IOPS

16 x 72 IOPS = 1152 Read IOPS

Onboarding - Contention

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3. RPO/RTO - Implementation Test

• Product has been implemented to stated design, all workloads onboarded

• All customers are under protection and showing sub 60 second RPOs

• But…. what happens in that “nuclear” moment?

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Implementation Test

• Project conclusion was a full POD test

• Consisted of roughly 1000 VMs, 375 VPGs

• Test run multiple (dozen or so) times to gain confidence in RTO timing, RPO story

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Wrap-Up

•Best Vendor Decision

•The Product “Just Works”

• Implementation – A Full Partnership

•Product Support – Phenomenal

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Q & A

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Thank You