ExaGrid Stress-free backup storage
About ExaGrid Established in 2002 100% focused on disk-based backup
Largest independent vendor in the space 100% focused on disk-based backup Highly differentiated architecture Winner of the most industry awards Large customer base Over 10,000 systems installed worldwide Over 350 published customer success stories More than all other vendors combined exagrid.com|2 Backup Requirements Support for leading backup apps, dumps & utilities
Easy to use and manage Fastest backups for the shortest backup window Fastest local restores Instant recoveries just boot a VM Fastest offsite tape copies Fixed length backup window as data grows Best RPO and RTO from a site disaster Lowest cost up front and over time Why Disk and Why Deduplication?
Faster backups and restores More reliable backups and restores Improved security Less management time Why Deduplication? Disk becomes expensive due to history/retention Backup can retain 10 to 100 times the primary storage The amount of disk required needs to be reduced Deduplication reduces the amount of disk by storing only unique bytes or blocks With Deduplication, Implementation Matters
Is a required feature that reduces the amount of disk Depending on implementation, deduplication can break backup If deduplication is not implemented correctly, then Backups will be slower Restores will be slower Instant VM recoveries will take hours Offsite tape copies could take days The backup window will grow in length as data grows Disk usage can grow faster for some more than others The bandwidth to replicate offsite could be greater There will be expensive future forklift upgrades Deduplication Deployment Scenarios
Client-side Dedupe Small remote offices WAN-efficient transfer of datato the corporate data center Media Server Dedupe Average 7:1 dedupe ratio Use more disk with longer retention Use more WAN bandwidth Inline Slower backups Slow restores (rehydration) Dedicated Dedupe Appliance Average 20:1 dedupe ratio Uses less disk with longer retention Uses less WAN bandwidth Faster backups dedicated appliance Faster restores dedicated appliance Offload the media server Heterogeneous environments Disk Backup with Deduplication
Architectural Approaches Inline deduplication with scale-up Target-side appliances Deduplication in the backup software to straight disk Landing zone with scale-out Backup Software Server-based Deduplication
Compute-intensive inline process in an already taxed media server slows backups down Data is 100% deduplicated on disk which slows down restores, recoveries, and tape copies due to a lengthy rehydration process for every request Average deduplication ratio for software is 7:1 versus 20:1 in a dedicated appliance requiring far more disk and WAN bandwidth Challenges of Traditional Inline Deduplication
Slows backup down due tocompute-intensive inline process Data is 100% deduplicated on diskwhich slows down all requests dueto data rehydration time Backup window grows as data grows since only disk capacityis addedBackup software has a lower deduplication rate, resulting in: More storage More bandwidth Inline with Scale-up Challenges
Slows backup down due to compute-intensive inline process Data is 100% deduplicated on disk which slows down restores,recoveries, and tape copies due to a lengthy rehydration processfor every request Backup window grows as data grows since only disk capacity is added, ultimately forcing a forklift upgrade Need to determine up front what you require guess at what is needed Controllers are obsolete each time a new chip becomes available ExaGrid A Better Way! Unique Architecture
Front-end landing zone Most recent backups in full form ready to restore Adaptive deduplication Occurs in parallel Global deduplication Deduplicates across all NAS shares and all appliances in a GRID Scale-out Full appliances in a GRID ExaGrid Solves the Problems Fastest backups Fastest: restores, instant recoveries & tape copies Fixed length backup window as data grows Eliminates obsolescence and forklift upgrades Works with Leading Backup Apps and Utilities
Oracle Dump RMAN Dump ExaGrid Ecosystem Partners ExaGrid Simple and Flexible Fastest Backups and Shortest Backup Window
Unique landing zone architecture Back up directly to disk No inline processes to slow backups Shortest possible backup window Deduplicate & replicate in parallel foran up-to-date disaster recovery point Most recent copy is undeduplicatedfor fast restores and recoveries Fastest Restores and Recoveries Advanced Architecture for Instant Recovery
Instant Restore Fast Restore Fast Backup Backup 1 Landing Zone Backup 2 High speed landing zone. Most recent backup in complete form for Instant VM Recovery 10TB 10TB 10TB Intact VMs for InstantRestoreTM 10TB 10TB 10TB Backup 3 Backup 4 Backup 5 Backup 6 Backup 7 Backup 8 Backup 9 (click 1) Give an overview of the ExaGrid architecture (landing zone/repository), then (click 2) Backup 1: Fast backup with full copy landed in the cache, available for fast restore (wait for all steps to build) (click 3) Backup 1: Most recent copy compressed 2:1 (click 4) Backup 2: Fast backup with full copy landed in the cache, available for fast restore (click 5) Backup 2: Most recent copy compressed 2:1 (click 6) Backup 2: The 2% of the data that changed from Backup 1 to Backup 2 is written as tiny byte-level deltas for history (click 7) Backup 3: Fast backup with full copy landed in the cache, available for fast restore (click 8) Backup 3: Most recent copy compressed 2:1 (click 9) Backup 3: The 2% of the data that changed is written as tiny byte-level deltas (click 10) Backup 4: Fast backup with full copy landed in the cache, available for fast restore, most recent copy compressed 2:1, data that changed is written as tiny byte-level deltas (click 11) Backup 5: Fast backup with full copy landed in the cache, available for fast restore, most recent copy compressed 2:1, data that changed is written as tiny byte-level deltas (click 12) Summary: 5 Days worth of data (originally 5TB) occupies 580GB of repository space Repository 5TB 5TB 5TB 5TB 5TB 2:1 Compression Byte-level deltas of compressed zones 90TB backed up to 6.6TB repository space 200GB 200GB 200GB 200GB 200GB 6.6TB Backup 4 Backup 1 Backup 2 Backup 3 Backup 5 Backup 9 ExaGrid-Veeam Accelerated Data Mover
Veeam-to-Veeam Communications Faster Than CIFS With the Landing Zone Further Improves Performance for: Restores Instant VM recoveries boot a VM in seconds to minutes Tape copy Sure Backup integrity check Virtual Lab Veeam backup copy and replication Synthetic Full Backups on the ExaGrid Eliminates Veeam backup server overhead and network traffic Improved Copy and Replication Updates Veeam with Offsite Data ExaGrid Repository ExaGrid deduplication is in addition to Veeam deduplication Allows for longer-term retention Support of Oracle RMAN Channels
Multi-hundred terabyte database backup to a single ExaGrid scale-out GRID Parallel RMAN channels for the fastest backups RMAN performance-directed sections for maximum performance RMAN failover if any appliance the GRID fails Most recent database in an undeduplicated form for the fastest restores Fixed length backup window with a scale-out storage architecture ExaGrid Integration with Symantec OST
20 ExaGrid Support for Symantec OST
Unified control and access of local and remote backup data Support for unbalanced retention ExaGrid integration with backup policies Monitor replicated backup status from within the backup application Simplified disaster recovery Shorter backup windows OpenStorage data transfer optimization ExaGrid link balancing Direct backups from Windows servers to an ExaGrid system ExaGrid Database Support
Fast, simple database backups Direct application support from leading utilities: RMAN, SQL Dump, Dell LightSpeed, Red Gate SQL Backup Pro, Idera SQL Safe Fastest restores Dramatic cost savings of 50% to 90% Free up expensive primary storage and leverage deduplication Reduces backup application licenses for DB agent WAN-efficient replication of database backups Cost effectively scale as your databases grow with ExaGridsscale-out architecture Fixed Length Backup Window Scale-Out versus Scale-Up Backup Storage
ExaGrid EX32000E up to 25 Appliances in a Scale-Out GRID TB/hr. Ingest Rate DD4200/4500 DD7200 DD9500 DD2500 Full Backup TBs ExaGrid Appliances 25 Appliances to a Scale-Out GRID (800TB Full Backup)
ExaGrid Model Raw Capacity (TB) Usable Capacity (TB) Capacity for Weekly Fulls (TB) Capacity for16 Weekly Fulls (TB) Max Backup Throughput(TB/hr) ExaGrid Appliance Nodes EX1000 5 2 1 16 0.36 EX2000 7 4 32 EX3000 9 6 3 48 0.72 EX4000 11 8 64 1.08 EX5000 10 80 EX7000 20 14 112 2.40 EX10000E 26 160 EX13000E 13 208 EX21000E 42 21 336 4.32 EX32000E 72 63 512 7.56 ExaGrid Appliance Nodes with Encryption EX7000-SEC EX10000E-SEC EX13000E-SEC EX21000E-SEC EX32000E-SEC Max Backup Throughput (TB/hr)
ExaGrid Appliances 25 Appliances to a Scale-Out GRID (800TB Full Backup) EX32000E 14 in a GRID Full Backup (TB) Usable Capacity Max Backup Throughput(TB/hr) 1 32 63 7.5 2 64 126 15 3 96 189 22.5 4 128 252 30 5 160 315 37.5 6 192 378 45 7 224 441 52.5 8 256 504 60 9 288 567 67.5 10 320 630 75 11 352 693 82.5 12 384 756 90 13 416 819 97.5 14 448 882 105 Scales to 25 appliances in a scale-out GRID (800TB Full Backup / 187.5TB/hr.) Technical Specifications
ExaGrid Model EX1000 EX2000 EX3000 EX4000 EX5000 EX7000/ -SEC EX10000E/ -SEC EX13000E/ -SEC EX21000E/ -SEC EX32000E -SEC Chassis 2U 3U 4U Max Single Backup 1TB 2TB 3TB 4TB 5TB 7TB 10TB 13TB 21TB 32TB Disks 5 7 9 11 8 10 13 16 24 Disk Size Memory 4GiB 8GiB 16GiB 32GiB CPUs/Cores 1 CPU 4 Cores 4 Hyperthreaded Cores NICs Two 1GbE Four 1GbE and Two Optional 10GbE Six 1GbE and optionally replace two 1GbE with two All Servers Intel processors / Enterprise SATA drives (SAS drives for EX21000E and EX32000E; FIPS-2 compliant SAS drives for all -SEC systems) /RAID6 with hot spare / Redundant fans / Redundant power supplies / ExaGrid software / 19-inch rack-mount chassis Onsite and Offsite Tape Replacement
Adaptive deduplication deduplicates and replicates in parallel withbackups for an up-to-date recovery point WAN efficiency of 50:1 (2% data change rate) Configure the disaster recovery site to all repository to save cost Bandwidth throttle set times of day and Mbps limit WAN encryption for data replication Multi-site Data Center Disk Backup Topology
Multi-site Architecture 50:1 WAN efficiency across all sites Management from single UI Cross-site protection between sites Consolidated DR copies of backup reduces costs Unified Management Console: ExaGrid UI
Single interface across all systems Simple dashboard gives quick view DailyReport System Status Landing Zone Repository Redundancy and Security
Redundant Hardware RAID6 guards against simultaneous disk drive failures Includes spare drive in every system Failed drives rebuilt automatically Redundant power supplies NIC teaming Security Optional FIPS compliant data encryption Ensures data at rest is encrypted with 256-bit AES Occurs at the drive level in nanoseconds Does not impact backup performance World-class Maintenance and Support
Phone andSupport Maximum one-hour response during business hours Assigned US-based support engineer Support staff are subject matter experts in backup applications Customer Installable Customer self-installable with phone support All Releases Provided Point and full releases includes all new features No license fees to track or renew Health Status Monitoring ExaGrid Support can monitor status ExaGrid Support can notify of any unresolved issues Next Business Day Replacement of All Hardware Customer installable No additional charge All included in support program World-class Customer Ratings ExaGrid received world-class Net PromoterTM Scores (NPS) from the Net Promoter survey for our product and customer support comparableto Apple in consumer Net Promoter benchmarks. Selected ExaGrid Global Customers
Business Services Manufacturing Transportation / Retail Healthcare Banking Insurance / Law Business Services Government Industry Recognition 2014 - 2015 2011 - 2013
ExaGrid Named Visionary in the Magic Quadrant for Disk Backup with Deduplication Top Emerging Vendor Cool Vendor in Data Protection Best Value for Money One to Watch ExaGrid Named 2013 Disk Backup Champion" Gartner Magic Quadrant Info-Tech Disk Backup Vendor Landscape DCIG 2014 Buyers Guide: Rankings Under $100K ExaGrid / Stress-free Backup Storage
Shortest Backup Window Back up straight to a landing zone Perform Adaptive Deduplication in parallel Bring landing zone and bandwidth with every appliance Fixed Length Backup Window as Data Grows Full appliances in a GRID scale-out architecture Fastest Restores, Recoveries and Tape Copies Most recent backups in full undeduplicated form Lowest Cost for Backup Storage No product obsolescence Mix and match any size or age appliance in the GRID No forklift upgrades as the backup window is fixed length Maintenance & Support includes all options no hidden costs From Customers who Chose ExaGrid over DD
Cross Country Homes ExaGrid and market leader Data Domain both dedupe at the target but Data Domain does inline deduplication, and Matulik decided a post-process data deduplication appliance was better for his needs. Our backup windows had to be much smaller. We looked at the best method of doing backup in a smaller window. Vermont Electric Power We compared both systems and chose the ExaGrid based on its price/performance and scalability.Also, ExaGridspost-process data deduplication technology seemed like a good fit for us and we liked the fact that we could retain our investment in Backup Exec. Ascend One (former customer of DD) From the beginningthe system wasntproperly sized, so wecouldnt back up asmuch data as wewould have liked andperformance waspoor. We chose theExaGrid over othersolutions for a lot of reasons, not theleast of which is theuncomplicatedscalability as well asthe ability to doreplication. Grow Financial(former customer of DD) In our business, time is money, and downtime can be calculated in losses of thousands of dollars an hour. Ninety-nine percent of the time, we need to restore data from the most recent backup, but with the Data Domain unit, stored data had to be reconstituted, and the recovery process was long and complicated. Volkswagon Credit We tested solutions from both ExaGridvs. Data Domain side by side and chosethe ExaGrid basedon its approach to data deduplication and its overall simplicity. The ExaGrid also hadthe best price/ performance. Cross Country Homes ExaGrid and market leader Data Domain both dedupe at the target but Data Domain does inline deduplication, and Matulik decided that ExaGrids data deduplication appliance was better for his needs. Our backup windows had to be much smaller. We looked at the best method of doing backup in a smaller window. Vermont Electric Power We compared both systems and chose the ExaGrid based on its price/performance and scalability.Also, ExaGridsdata deduplication technology seemed like a good fit for us and we liked the fact that we could retain our investment in Backup Exec. Ascend One (former customer of DD) From the beginning,the [Data Domain]system wasntproperly sized, so wecouldnt back up asmuch data as wewould have liked andperformance waspoor. We chose theExaGrid over othersolutions for a lot of reasons, not theleast of which is theuncomplicatedscalability as well asthe ability to doreplication. CASE STUDY: First National Bank of Hutchinson
Before ExaGrid Before ExaGrid After ExaGrid Environment Backup Media: Disk & Tape Software: Backup Exec with softwarededuplication Challenges Backups ran 20 hours Desired backup window 12 hours Unable to run full backups within window 5:1 deduplication ratio which consumed too much disk Environment Backup Media: Disk & Tape Software: Backup Exec with softwarededuplication Challenges Backups ran 20 hours Desired backup window 12 hours Unable to run full backups within window 5:1 deduplication ratio which consumed too much disk Environment Two-site ExaGrid system Symantec Backup Exec Advantages Backup window reduced to 11 hours for increased data Better deduplication resulting in moreretention You never know what your data is going to look like in a few years, and I wanted a product that would allow me to easilyscale; the ExaGrid provides that. It seems that ExaGrid is really on top of new technology, and the system is a very goodfit for our environment. Tim Miller Senior VP and Manager, IT FNBH CASE STUDY: Strategic Hotels and Resorts
Before ExaGrid Before ExaGrid After ExaGrid Environment Backing up to cloud solution Challenges Clouds unfriendly interface verycumbersome and time consuming Required granular detail to locate andrestore data Cloud costs $12K-$14K/month andescalating Environment Backing up to cloud solution Challenges Clouds unfriendly interface verycumbersome and time consuming Required granular detail to locate and restore data Cloud costs $12K-$14K/month andescalating Environment Single-site ExaGrid with SymantecBackup Exec Retention period met with 70% of thesystem still available Advantages Instant restores with flawless, very fastperformance Savings of $150,000 per year; three-month ROI Our IT department runs lean, as do so many others these days. Given that, ExaGrid taking care of the system for us is a godsend. You just dont find that with other vendors without a huge price tag! ExaGrids support is, in my opinion, the best in the business! Bryce White, Director of IS, Strategic Hotels & Resorts CASE STUDY: St. Johns Riverside Hospital
Before ExaGrid Before ExaGrid After ExaGrid Environment D2D2T solution using SymantecNetBackup Challenges Nightly backups ran 12 hours Needed to be shorter to avoid impact to users Out of capacity on disk and tape Not all data backed up Solution would only allow one weekretention Environment D2D2T solution using SymantecNetBackup Challenges Nightly backups ran 12 hours Needed to be shorter to avoid impact to users Out of capacity on disk and tape Not all data backed up Solution would only allow one weekretention Environment Two-site ExaGrid system withNetBackup Advantages Backup times reduced 50%, to less than6 hours Vast improvement in restore times All data backed up regularly Three months retention CASE STUDY: Prudential Douglas Elliman
Before ExaGrid Before ExaGrid After ExaGrid Environment Symantec Backup Exec to tape Challenges Backup window exceeded 24 hours Backings required up to 15 tapes for dailybackups and up to 40 for full backups Restores took one to five days Environment Symantec Backup Exec to tape Challenges Backup window exceeded 24 hours Backings required up to 15 tapes for dailybackups and up to 40 for full backups Restores took one to five days Environment Single-site ExaGrid with SymantecBackup Exec Advantages Backup window reduced Reliable backups and restores Backups are now self-running Restores complete in a few hours I have peace of mind that I didnt have before. Because our tape process was so complicated and manual, I was the only onewho could manage the backups before.Now with the ExaGrid, the backups just run, even if Im not in the office. Tony Pahuja, Network Manager, Prudential Douglas Elliman CASE STUDY: Lawndale Christian Health Center
Before ExaGrid Before ExaGrid After ExaGrid Environment Symantec Backup Exec to tape Challenges Unable to complete full backups withinbackup window File server alone took 12+ hours to back up Tape-based DR strategy gave cause for concern Environment Symantec Backup Exec to tape Challenges Unable to complete full backups withinbackup window File server alone took 12+ hours to back up Tape-based DR strategy gave cause for concern Environment Dual-site ExaGrid with SymantecBackup Exec Advantages Reliable backups as well as restores All backups completed in less than 8 hours Restores fast and painless compared to tape The ExaGrid is a terrific product. We were in a terrible spot with our backup times and disaster recovery situation, but installing the ExaGrid system has solved both problems. We no longer have issues meeting our backup window, and wereable to get complete backups every time. ExaGrid has done everything we wanted and more. Michael Strong, Systems Administrator, Boston Private Bank & Trust CASE STUDY: Hitachi Consulting
Before ExaGrid Before ExaGrid After ExaGrid Environment Symantec NetBackup to tape Challenges Tape library problems required dailymanagement Restores required recalling tapes fromoffsite storage Differential backups ran for over 12 hours Full backups took more than 48 hours Only able to back up 7TB of 12TB nightly Environment Symantec NetBackup to tape Challenges Tape library problems required dailymanagement Restores required recalling tapes fromoffsite storage Differential backups ran for over 12 hours Full backups took more than 48 hours Only able to back up 7TB of 12TB nightly Environment Symantec NetBackup with three ExaGrid2-site systems including off-site Advantages Able to protect all data Nightly backup time reduced 75% to 3 hours Saved thousands of dollars inlicense/maintenance fees vs. tape The ExaGrid system was much more cost-effective than the other solutionsExaGrids customer support has been stellar. In fact, its been among the best support Ive had from any vendor Ive worked with and I would put them up against any othersupport organization in the industry. Brad Leonard, Network Engineer, Hitachi Consulting CASE STUDY: NPS Pharmaceuticals
Before ExaGrid Before ExaGrid After ExaGrid Environment ARCserve Backup to tape Challenges Weekly full backup taking 38 hours Meeting SOX requirements costly and timeconsuming Tape media, transportation and storagecosts excessive No DR plan Environment ARCserve Backup to tape Challenges Weekly full backup taking 38 hours Meeting SOX requirements costly and timeconsuming Tape media, transportation and storagecosts excessive No DR plan Environment 2-site ExaGrid system with ARCserve Advantages Achieved goal of 24-hour recovery fromdisaster Retention increased to 3 months Weekly backup reduced 60% (to 12 hours) Nightly backup reduced 50% Saved $1,500/month in tape costs andstorage fees The return on investment for the ExaGrid system is tremendous. Its easy to justify the cost with hard numbers like tape,storage and transportation costs, but it makes even more sense when you figure in time we spend managing and troubleshootingbackups and restores and the cost of downtime for the user waiting for a file. Jason Ostrowski, Manager of I.T., NPS Pharmaceuticals CASE STUDY: Federal Mediation & Conciliation Service
Before ExaGrid Before ExaGrid After ExaGrid Environment D2D2T with Backup Exec Challenges Tape was proving costly and timeconsuming to manage Policies dictated three-year retention The cost of tape and offsite storage was a budget-buster Environment D2D2T with Backup Exec Challenges Tape was proving costly and timeconsuming to manage Policies dictated three-year retention The cost of tape and offsite storage was a budget-buster Environment 2-site (5TB) ExaGrid system withSymantec Backup Exec Advantages Reduced backup windows by 30% Reduced long-term tape archiving by 30% Saved $1,240/month in tape costs andtransporation fees The system was more cost-effective than other solutionsWe were able to set the system up ourselves and its easy tomanage and administer. When we factored all that in with the reduced tape and transportation costs, it was an easy choice. Dana McCutcheon, IT Specialist, FMCS Before ExaGrid Before ExaGrid After ExaGrid Environment Challenges
CASE STUDY: MOTO (UK) Before ExaGrid Before ExaGrid After ExaGrid Environment 44 locations operating 24/7 usingARCserve Challenges Full backups nightly to tape backupexceeding 12 hours Reliability of tape backup and restores Growing database volumes from new ERP system Too risky to perform incremental backupsduring the week using tape Environment 44 locations operating 24/7 usingARCserve Challenges Full backups nightly to tape backupexceeding 12 hours Reliability of tape backup and restores Growing database volumes from new ERP system Too risky to perform incremental backupsduring the week using tape Environment 2-site ExaGrid system with ARCserve Citrix software at each of 43 locations,with central backups at datacenter;second site for disaster recovery Advantages Deduplication ratios of up to 34:1 Incrementals nightly and full backupseach weekend One year of retention on ExaGrid system with ExaGrid, we no longer have to worry about our backups. We have a high degree of confidence in the system and weknow that our backups are completed each and every night. The ExaGrid system has been extremely cost-effective and hasenabled us to streamline our operations.Simon Austin Systems Architect Moto Before ExaGrid Before ExaGrid After ExaGrid Environment Challenges
CASE STUDY: Concur Before ExaGrid Before ExaGrid After ExaGrid Environment Disk-to-disk backup with inline deduplication,backing up over 10,000 databases daily Challenges Maxed out number of disk trays; singlecontroller Couldnt scale: 2-1/2 days with D2D systemto deduplicate one days worth of data IT reverted back to tape backups Restores slow, difficult and expensive Environment Disk-to-disk backup with inline deduplication,backing up over 10,000 databases daily Challenges Maxed out number of disk trays; singlecontroller Couldnt scale: 2-1/2 days with D2D systemto deduplicate one days worth of data IT reverted back to tape backups Restores slow, difficult and expensive Environment ExaGrid 80TB system backing up 1PB of data Advantages Deduplication ratios average 27:1 Backups meetgoals, scale using GRID Restore speeds: quick with full copy ofmost recent backup in high-speedlanding zone Able to add capacity in modularincrements to pay as they grow Weve worked closely with ExaGrid on our backup infrastructure and have been extremely pleased with the product, customersupport, and the company as a whole. The folks at ExaGrid go the extra mile, and we consider them to be a trusted partner. Sean Graver, Storage Architect, Concur Before ExaGrid Before ExaGrid After ExaGrid Environment Environment
CASE STUDY: Dot Foods Before ExaGrid Before ExaGrid After ExaGrid Environment CommVault Simpana to tape Challenges Backup window continued to grow tounacceptable proportions Limited by number of tape drives, whichdidnt provide sufficient throughput andvolume Amount of tapes required and relatedphysical storage were problematic Environment ExaGrid two-site cross-replicatingsystem Advantages Approach to deduplication optimizesdisk space Seamless integration with CommVault Two-site system provides disasterrecovery protection Much less time spent managing backups The time that we spend managing our backups has been cut considerably using the ExaGrid. Our tape library was cantankerousand didnt want to work half the time. When you only have a few tape drives and just one of them goes down, it really puts a crimpin things whereas backing up to disk, you can write hundreds of streams simultaneously. Les Hultquist, UNIX Administrator, Dot Foods ExaGrid / Stress-free backup storage
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