Protecting VMware Data Off-site “Tape vs. Cloud Options” Bill Evans, Arkeia Software “Case Study from University of Chicago” Tom Indelli, Senior System Administrator

Causes of Data Loss Strategies for Data Protection –Replication –Backup Data Loss and Data Protection © 2011 Arkeia Software. All rights reserved. Page 2

Causes of Data Loss Source: Kroll Ontrack Inc., 2011 © 2011 Arkeia Software. All rights reserved. Page 3

Data Protection Strategy #1: Replication ► Replication –Additional copy of current data (files, images, objects) ► Replication Options –Disk (or RAID) –Synchronous Expensive: data replicated before transaction completes –Asynchronous Less expensive: data replication lags behind ► Replication Benefits –Offsite data storage –Immediate failover © 2011 Arkeia Software. All rights reserved. Page 4 Replication Faithfully Copies All Errors; Over 50% Of Data Loss is Unprotected Protected Unprotected

Data Protection Strategy #2: Backup ► Backup –Multiple Point-in-time “Restore Points” ► Backup Options –Tape or Disk or Cloud –Hourly, Daily, Weekly, Monthly, Quarterly, Yearly ► Backup Benefits –Recovery to time in the past –Offsite data storage © 2011 Arkeia Software. All rights reserved. Page 5

Backup Requirements ► Secure –Off-site –Off-line ► Frequent Restore Points –Restore Point Objectives (RPO) to minimize data loss days ► Rapid Restore Time –Restore Time Objectives (RTO) to minimize down-time hours © 2011 Arkeia Software. All rights reserved. Page 6

Off-site Storage ► How to choose? –Costs Fixed Variable –Backup window –Time-to-restore (RTO) –Reliability –Convenience © 2011 Arkeia Software. All rights reserved. Page 7

Off-site Storage Fixed Costs Variable Costs Backup Window Time to Restore HighLowShort LowHighLong LowHighShort © 2011 Arkeia Software, All rights reserved. Page 8 Copy is moved offsite

Off-site Storage Strategies ► Why is Off-site Storage Important? –Loss, theft, site destruction ► Strategies –Tapes on trucks –Replication to the cloud ► Costs Data Volume Protected Cloud Tape © 2011 Arkeia Software. All rights reserved. Page 9

University of Chicago: VMware Backup Strategy Page 10 Tom Indelli Senior Systems Administrator University of Chicago

Organization Page 11  University of Chicago – Physical Sciences Division  Activities – Theoretical Chemistry (e.g. Molecular Dynamics) – Theoretical Physics – Science Education

Deployment #1: Data & Servers Page 12  Data – Theoretical Chemistry & Molecular Dynamics – Simulations of atoms using “trajectory files” 20,000 atoms to 100,000 atoms Jobs run up to 48 hours Simulate less than 50 nanoseconds of interactions – Most operation is “batch”, performed on 100-node compute clusters  Protected Servers – 2 Red Hat and 1 MacOS file servers – File servers hold inputs to and results of simulations – 44TB source data Analyses are computationally-intensive; Physical platforms deliver best performance

Deployment #1: Data Protection Page 13  Backup Server Solution – Arkeia Network Backup v9 on Red Hat 6.0 – 100TB disk (backup target DAS)  Backup Strategy – Backup to Disk Weekly full, nightly incremental Agents backed up concurrently  Offsite Strategy – None Red Hat EL 6.0 Arkeia Backup Server v9 on RHEL Compression occurs in Arkeia agent, before backups are moved on the LAN 2Gbps LAN Red Hat EL 6.0 MacOS X

Deployment #2: Data & Servers Page 14  Data – Web servers – Management software & data – Support software & data – Uninterrupted operation is critical  Protected Servers – 2 ESXi 4.1 hosts with vCenter 4.1 (facilitates upgrades) – virtual machines – 3TB source data

Deployment #2: Data Protection Page 15  Backup Server Solution  Backup Strategy – Backup to Disk (20TB EqualLogic SAN) Weekly full, nightly incremental Three groups of backups performed in sequence – Replicate to Tape Library (Dell Powervault PL-2000 with LTO4 drive)  Offsite Strategy – Tapes moved to another office Hypervisor #AHypervisor #B Arkeia Backup Server v9 on RHEL VM A.1 VM A.2 VM A.3 VM B.1 VM B.2 ANB VM Compression occurs in Arkeia agent, before backups are moved over LAN 2Gbps LAN

Deployment #2: Backups Page 16 Backup Group Data on Disk Number of Virtual Machine Images Full/ Incremental Backups (with CBT) Compression Multiplier (With Dedupe) Retention Period Approx Backup Storage Required PSD650 GB1 Weekly / Daily 4.3 (7.9) 60 days1.6 TB Heliopolis 1,600 GB 1 Weekly / Daily days9.8 TB General VM Pool 700 GB12 Weekly / Daily 2.2 (13.5) 60 days3.3 TB = 19 LTO4 Cartridges

Deployment #2: vStorage Usage Page 17  Backups via vCenter  Backups use Changed Block Tracking (CBT) – Full backups (“Thin full” with CBT) – Incremental backups  Restores – Perform occasional full-image restores – Have tested single-file restores

Costs of Tape vs. Cloud for 18TB Page 18  Tape – 22 LTO4 tapes = $660 – 1 TL-2000 = $10,000 (amortized over 3 years) – One year costs = $4,000 + tape shuffling  Public Cloud – (Amazon) = $2,300/month – One year costs = $28,000 Does Not Include Costs of Bandwidth

Summary Page 19  UChicago has both virtual and physical environments – Physical systems are a better fit for some workloads – Want one backup solution to protect both environments  Off-site storage is required – Off-line is a bonus  vSphere Changed Block Tracking – Accelerates incremental backups – Reduces storage

Tom Indelli Senior Systems Administrator Thank You Page 20

Why Hybrid? Data Volume Limits Cloud Infrastructure Requirements Hybrid Cloud Backup © 2011 Arkeia Software. All rights reserved. Page 21

“Hybrid” Cloud Backup ► Perform backup on LAN –Fast backups, fast restores ► Replicate backups to cloud for safe-keeping –Secure data © 2011 Arkeia Software. All rights reserved. Page 22 Step 1Step 2

“Hybrid” Cloud Backup ► Full Backup –If time < one week: Over the WAN –If time > one week: Via portable media ► Daily Incremental Backup –If time < 24 hours: Over the WAN –If time > 24 hours: Impossible © 2011 Arkeia Software. All rights reserved. Page 23 Incremental Backup Size Limits Cloud Backup: Incremental Size Is 0.01% to 20% of Full Backup

Cloud Strategies: Replication Window © 2011 Arkeia Software. All rights reserved. Page 24 Incremental (1%) Backup Full Backup

Role of Deduplication in Backup ► Shrinks Data –Reduces Storage –Shortens Backup Window ► Data Scenarios –Primary Data –Secondary Data © 2011 Arkeia Software. All rights reserved. Page 25 Across computers (e.g. word.exe) Across/Within Files (e.g. PPT files) Over Time (e.g. outlook.pst)

Storage-only v.s. Storage-and-Server File Recovery vs. Disaster Recovery Hybrid Cloud Recovery © 2011 Arkeia Software. All rights reserved. Page 26

Cloud Recovery Strategies ► Data are Secure –Deduplicated –Compressed –Encrypted ► How to Recover/Extract? © 2011 Arkeia Software. All rights reserved. Page 27

Cloud Recovery Strategies ► How to Recover/Extract? –Restore (via big pipe) to servers in cloud –Restore (via portable media) to new location © 2011 Arkeia Software. All rights reserved. Page 28

Hybrid Cloud Backup Summary ► Alternative to Tape ► …But Maximum Data-Protection Limit –Imposed by incremental backup size ► Primary Cost of Hybrid Cloud –Bandwidth –(Then target disk) ► Pay Attention to Recovery Strategy –Instantiate in Cloud –Recovery on Portable Media © 2011 Arkeia Software. All rights reserved. Page 29

Arkeia Software ► Company –Founded 1996; HQ in San Diego ► Products –Arkeia Network Backup Suite Backup/Recovery Disaster Recovery –Virtual and Physical Environments vSphere (with CBT), Hyper-V, XenServer Linux, Windows…AIX, BSD, HP-UX, MacOS, Netware, Solaris (200+ platforms) –Software, Appliances, Virtual Appliances –Disk, Tape, Cloud ► Customers –7,000 mid-market customers in 70 countries –Enterprises, Governments, Service Providers © 2011 Arkeia Software. All rights reserved. Page 30

Bill Evans Arkeia Software © 2011 Arkeia Software. All rights reserved. Page 31 Manon Buettner, Principal Nuvalo Jo Peterson, Regional Manager Teleproviders Resources for last-mile internet for data centers and enterprises

Detail 1 of 3: “Incrementals Forever” ► How Does it Work? –Initially, one full backup –Subsequently, “incrementals forever” © 2011 Arkeia Software. All rights reserved. Page 32 Day … t Traditional Backup Policy ► How to recover disk space at target? –“Synthetic backups”

Detail 2 of 3: Multiple Sources ► Deduplication consolidation –Static storage cannot resolve duplicates © 2011 Arkeia Software. All rights reserved. Page 33 X X ► Deduplication vs. Encryption –Dedupe → Compress → Encrypt

Detail 3 of 3: WAN Bandwidth ► Data Compression –File-grain compression Examples: LZ-77, JPEG, MPEG –Inter-file deduplication Examples: SIS, fixed-block, variable-block, progressive-dedupe ► TCP Optimization? © 2011 Arkeia Software. All rights reserved. Page 34 Warnings: 1. Latency Optimization  Bandwidth Optimization 2. No compression of compressed or random data

Data Loss Universe Media failure Software Error Disasters Loss of Hardware User Error © 2011 Arkeia Software. All rights reserved. Page 35