Data Protection Manager – SAN integrationVu Nguyen Cao SonEPG Technical SpecialistMicrosoft Vietnam

Integrating DPM 2007 with SAN

Feature SummaryAllow the DPM customer to perform quick file and application recoveries and Initial Replication (SAN Media Load) of data sources using hardware based snapshot and clone technology, available in a SAN environment.

DPM Initial Replication using SAN Clone technology

Install the DPM agent on the Production Server

Clone the production LUN using the SAN UI

Validate that the cloned LUN is visible in the SAN UI

Fracture the cloned LUN and attach to DPM server

Assign Drive letter and name the cloned LUN

Create Recovery Point LUN & assign drive letter

Create new Protection Group via DPW

State data protection intent

State replication and retention intent

Select Custom volumes in “Disk Allocation” pane

Allocate cloned volume to new PG

“Do not format” the cloned volume

Select “Manual” Replica creation method

Close wizard and review data structure created by DPM

Move the data on the replica volume into the directory named “Full”. DPM stores the data to be protected into this directory.

Final folder structure on DPM Cloned Replica volume

Run Consistency Check for this new PG

Initial Replication using Cloned Volume is complete

DPM Recovery using SAN hardware snapshot technology

Cancel all running jobs for data source being recovered

Create software snapshot of data source to be recovered

Execute the CreateShadowCopy.ps1 power shell script on the DPM server. Provide the data source name and protection group name as input parameters

Create Hardware snapshot of Replica and Recovery Point volumes of data source using SAN UI

Activate the Hardware snapshots using SAN UI

Mount H/w snapshots to Protected server

In Recovery wizard select “SAN Recovery” option

Run Consistency Check after Recovery is complete

Performance impact on Protected server during IR using SAN Clone technology

Performance Impact using EMC SAN

• Scenario:– Protection of Exchange Server 2007 (64 bit) using DPM

• Platform:– Intel Xeon 3.0 GHz, 8 GB RAM, Windows 2003 64 bit operating system

• Exchange Server Configuration:– This production server has two storage groups supporting 2000 users of 200MB

mailbox size.• LoadGen configuration:

– LoadGen was used to simulate workload on the Production server. LoadGen was running at MMB3 level while cloning the production LUNs.

• CLARiiON Array configuration:– CLARiiON CX3 model 40 was used for this analysis.– Two LUNs of 400 GB each were carved out for holding the 2 Exchange Storage

Groups (ESG1-DB and ESG2-DB) – Two LUNs of 60 GB each were carved out for holding the 2 Exchange Storage Group

Logs (ESG1-Log and ESG2-Log)– Two more LUNs of 400 GB each were carved out for holding the 2 Exchange Storage

Group Clones (ESG1-Clone and ESG2-Clone). This LUN will be used as the IR volume on the DPM Server.

• Time taken for cloning the entire 800 GB storage groups (2 X 400 GB LUNs):– ~ 4 hours

• Transfer rate achieved:– (800/(4*60*60))* 1024 = 56.8 MB/Sec. (2X performance over LAN)

PS Performance Impact using EMC SAN

CPU Utilization Response Time