1. Baydel Founded in 1972 Headquarters: Surrey, England North American Headquarters: San Jose, CA Engineering Driven Organization Specialize in Computer Storage

2. Baydel To design, engineer and manufacture the most RELIABLE product to our customers. To offer a TRULY OPEN, tightly coupled device and/or solution. To design and build with future EMERGING TECHNOLOGIES in mind, so as to easily integrate into existing product when production ready. Philosophy

4. OESR: High Availability RAID Resilience Dual Controllers (Dual Active, Active Standby Dual Load Sharing Main Power Multiple Redundant Cooling Fans - monitored Independent Isolated SCSI Channels Battery Backup Cache Mirroring RAID Stripe Verification Background Media Scan Intelligent Drive Locking Features

5. Modular by design Increase Bandwidth Increase Density Increase Connections Customer Serviceable

6. Ultra SCSI II 40MB\Sec Ultra SCSI I LVD 80MB\Sec Ultra SCSI 3 160MB\Sec FCAL 100MB\Sec

7. Point to Point SUN Compaq HP IBM Up to 5.5TB/cabinet Ultra:40MB\Sec LVD:80MB\Sec SCSI III (3)160MB\Sec Fibre100MB/Sec

8. Single Chassis Full Cabinet. 5 chassis, total. 4 shown. DriveFormattedtotal$Per/MBQtyGrand Total 9GB36 (x4)136GB$.30 MB5680GB 18GB68 (x4)272GB$.20 MB51.360TB 36GB136 (x4)544GB$.12 MB52.720TB 73GB276.7 (x4)1,107GB$.07 MB55.5TB Cabinet Specs

9. Data Integrity = Data = 1 Data = 2 Data = 3 Data = 4Parity = 10 Data = 2 Data = 3 Data = 4 Parity = 10 10 4 4 3 3 2 2 1 1 Sync Spindles Independent Spindles Parity Checking Done at Micro Processor Speeds Independent Architecture Take Performance Hit Due to Additional Seek & Rotations Required Just to Get The Data to do the Math Sync Spindles, You Get the Necessary Data Elements to do the Math By Default on Every I/O Operation No Performance Degradation When Drive Failed or Missing No Reliance on a Single Drive for Data Integrity Data = 1 SYNC SPINDLE PARITY WILL NOT ALLOW BAD DATA TO BE PASSED BACK! Availability

12. Goal: Perform I/O in cache as much as possible. Design: Intelligent cache, above synchronized spindles. Result: Don't need large cache -minimize workload on drives. Highest Performance in all I/O Profiles: Random Read Sequential Read Random Write Sequential Write Cache Competition Backup in Cache. Causes bottleneck. Cache Cannot overload cache, no bottleneck

13. Write Cache Host channel speed Sun PCI LVD best case 70 MB/SEC Pull data out of cache faster than host can put into cache guarantees free space to accept writes Large Write Cache Not Required Data Data Data Free space 4x Cheetha’s synced = 72MB/SEC Performance

14. Cache Host does 100 ea 8k Writes into Cache Array Does 1 ea 800k Write to Disk Use Cache to Minimize Workload on Drives 8k data 8k data 8k data Note: Physically impossible to do with unsynced architecture Performance

15. Motorola Testing Baydel Versus: Sun RSM 2000 and Sun A5000

16. Performance

20. EASE OF MANAGEMENT

22. Goals Recommendations Open Systems Approach Hardware - 0 Drivers = Open Software - Industry Leader (VERITAS) Create Common Backup Methodology DLT Tape Library (STK ATL’s) VERITAS Net Backup S/W. For Solaris, NT, Novell, PC’s. Veritas SRVM. Decrease Backup Window a. VERITAS foundation Suite Zero to Minimal impact on productionVolume Manager - Mirroring File System - Oracle perfrmce. b. VERITAS Replicator = CBB “Create Backup Break” TOTAL BUSINESS CONTINUANCE Consolidate Disk to Single Pool across all host platforms.BAYDEL OESR RAID Multi Host, Heterogeneous (up to 32 hosts), single pool from 15GB to 2.70 TB in SINGLE cabinet. Ability to allocate disk space on an “As needed” basis BAYDEL Pool Assign available space to any host, on an “As needed” basis. Decrease total cost of ownershipDisk Maintenance = minimal fee per year/cabinet. Flexible strategy: NAS, SAN, compliant, completely non-proprietary. Interface: LVS, Fibre, SCSI interchange, open to any I/F via Daughter card. Software Maintenance: Disk Capacity Upgrades: $12K per 70GB within enclosure. Wide Area Clustering between sites

23. SAN NAS SAN Host Node 1 SAN Host Node 2 SAN Host Node 3 SAN Master Access Control N ode 4 STORAGE AREA NETWORK (SAN) with Storage Access Protocol (typically Fibre Channel) Sectors Application asks local file system for file. Local file system asks storage for sectors. Storage SAN using traditional networking protocol (I.e., TCP/IP ) Application bypasses local file system and asks the storage for files. The storage now includes the file system, which automatically resolves contention among multiple hosts in the same way a local file system resolves contention among multiple processes. Host DEDICATED STORAGE NETWORK (i.e., running TCP/IP with NFS with Gigabit Ethernet, etc. Local area network protocol (I.e. TCP/IP) File Server: Baydel’s FEM