Nuffnang

Monday, September 10, 2012

Virtual DC: Different Architecture and Operation


Component

Physical Datacenter

Virtual Datacenter

Data Center

Bound by 1 physical site

DC migration is automated.

Disaster Recovery

Manual.

Actual Live DR rarely done, if ever.

Done by each apps

Automated.

Actual Live DR done frequently.

Provided as service by platform

Network

No DR Test network.

No QoS (no Shares concept)

DR Test Network required.

Built-in QoS.

Back up

Back up LAN + back agent

LAN-free and agent-less for most VM.

Clustering

MSCS

vSphere HA + Symantec AppHA

Firewall

FW not part of Server.

FW scales separately.

Rules based on IP

Rules embedded into VM.

Rules not limited to IP/Hostname.

Engine embedded into hypervisor

DMZ Zone

Physically separate. IP based separation.

IDS/IPS limited in DMZ

Logically separate. Not limited to IP.

IDS/IPS in all zones

Chargeback

Optional

Required

Capacity Management

Simple.

Complex. Tools required.

Asset Management

Complex & Time consuming.

Much simpler

Server life cycle

Manual provisioning & decomm.

Automated provisioning & retiring

No comments:

Post a Comment