NAStorage Features Introduction

1. NAStorage Features Introduction Ingrasys Technology Inc.

2. Product Category • On-line Storage Server • Serve as a general storage server dedicated to providing “file service” or as secondary backup for primary storage • Construct a large storage infrastructure over IP network • Near-line Storage Server • Serve as a CD/DVD server and a entry-level file server, which can share files and cached CD/DVD images over network

3. Market Position

4. On-Line Storage Server

5. Software • Embedded O.S. • Network • Storage • Security • Backup • Management • Differences

6. Embedded O.S. • Kernel • Linux 2.4.x or later • Microsoft Storage Server 3.0 • Customized built for OEM customers only • File system • Fast file system recovery • Journaling File System • Large file system support • Native “Snapshot” file system

7. Embedded O.S. • Snapshot • Provide a point-in-time copy of a “volume” • No need to pre-allocate space for snapshot • 256 snapshot versions per volume • Capable to roll back a snapshot • To an active file system, done by administrator • Retrieve previous versions of files, done by users • Take “snapshot” by schedule • Take “snapshot” automatically before using: • CD/DVD writing, tape backup, SmartSync • Ease of management to previous snapshot versions

8. Network • File sharing protocols • CIFS/SMB, NFS, AFP, NCP, HTTP, FTP • Windows 2000/XP/2003, UNIX, Mac OS 9/10, Novell Bindery • Network protocols • TCP/IP, AppleTalk, IPX • TCP/IP suite • WINS, DNS, DHCP, SNMP, SMTP, NTP, SSL • Dual high speed network interface • Working on “fault-tolerance”, “load-balance”, “Link Aggregation”, and “stand-alone” modes

9. Storage • Hard Disk Drive • Both PATA and SATA drives are supported • Compliant to ATA-6 specification (48-bit addressing) • Hot-swappable • Integrate with patent-pending “Intelligent PATA/SATA” backplane • RAID • JBOD, RAID 0, 1, and 5 • “Global Hot Spare” disk available for RAID 1 and 5 • “Drive Roaming” • Freely move disks in between different channels or servers • Volume “Hot Expansion” • For RAID 5 volume only • Allow “read” and “write” to the “expanding” volume

10. Storage • RAID (continued) • BSRA (Bad Sector Re-map Agent) • A run-time bad sector recovery/re-mapping service maintains the disk integrity on the fly • Smart RAID synchronization • RAID sync. will be engaged automatically if volume is not safely un-mounted • Normal Mode  Synchronize the entire volume when it is marked as “dirty” • Smart Mode  Synchronize only the “dirty” blocks according to the transaction records in NVRAM

11. Storage • Volume • IVMA (Intelligent Volume Mounting Agent) • Prevent a volume from being dismissed unexpectedly due to an absence of volume member during boot time • HUA (Hot Un-mount Agent) • A web UI to un-mount an on-line volume without shutting down the system • This helps to maintain the integrity of file system while the volume is hot removed. This is especially useful to JBOD and RAID 0 volumes.

12. Storage • SmartExtend • Extend the storage capacity over IP network • A concept similar to “Storage Network over iSCSI” • A SmartExtend “Initiator” as a “NAS head” • SmartExtend “Target” as the storage destination • ASR (Automatic SmartExtend Restoration) • Re-activate the accessing to a remote volume automatically when the network connection is restored • Manage centrally on “Initiator” • Which includes “accounts”, “security”, “quota”, …etc. • Unified “name space” for user access easily

13. Target #1 Target #2 Target #3 Storage • SmartExtend Diagram iSCSI Data Clients SmartExtend “Initiator” (NAS Head) File Sharing Protocols Data Clients

14. Storage • SmartExtend -- Application

15. Storage • Maintenance • Check disk healthy status, including the information provided by S.M.A.R.T. • Ensure the RAID level integrity during volume scanning • Correct and synchronize the “parity” data • Activate disk “write-fix” or perform “bad sector re-mapping” during disk scanning

16. Security • Non-NFS Network • User Level Security • Local user/group account  Workgroup mode • Windows domain user/group account  Domain mode • Windows NT domain & Windows 2000/2003 Active Directory • Compliant to Windows authentication policy • “Pass-Through” and “Net-Logon” • Sharing/Access Control List (ACL) • Set permission to individual “share” • Have security settings down to “file” and “folder” • Ease of configuring security of “file” and “folder” • By web GUI or Windows File Explorer (“right click”) • Quota Control • Space quota can be limited “by user” or “by folder”

17. Security • NFS Network • UNIX Native Security • Host IP & ID tables • Allowed IP address + R/W attribute • UID/GID + permission attribute • Acquire UID/GID from NIS server for ease of setting permission • ID mapping: NFS vs. non-NFS • Non-NFS user can map its SID to UNIX UID/GID, which is acquired from NIS server • This helps to maintain the same owner information of data when the same user is using different OS platforms • Quota Control • Space quota can be limited “By folder”

18. Security • Virus Protection • Fully integrated and powered by Trend Micro • Real-time scan • Prevent from virus infection during run-time file accessing • Virus Alert • E-mail, real-time scan history, summary log, event log • Scheduled virus pattern update • Performance • Only < 15% performance drop in “scan incoming files” • Only < 25% performance drop in “scan incoming/outgoing files”

19. Backup • Backup Scenario • For small office • Built-in backup software to work with IDE and SCSI tape drives • Built-in recording software to work with IDE CD/DVD writers • For corporate/enterprise • Built-in advanced backup software to work with SCSI tape library • Work with Veritas, CA, Legato network backup software • NAS can be the “source” or “destination” • Backup/restore “data with security stream” • Can be NDMP client or server • For remote data synchronization: SmartSync • Mirror  Create an identical copy of data in remote site • Backup  Back up data with “versions”

20. Backup • Tape Library • Media management • Visual display of robots, drives, slots, tapes • A database to record media information • Auto-Move media between slots and drives • Read bar-code and allow load/unload from/to CAP • Backup • Task oriented • Multiple schedules, backup types, media expiration date • Target media/device • A single media or a pool; a single drive or all drives • An option of searching available media or drive automatically • Configurable tape rotation

21. Backup • Tape Library (continued) • Restore • Restoration is based on the records stored in backup index • Auto-find the media from library for restoration • Select “files” or “folders” for restoration is allowed • No compatible issue in between NAStorage local tape and tape library software

22. Backup • SmartSync • File-based Block-level data synchronization • Check data differences “file-by-file” and transfer the different “block” only • Transfer data along with “security” stream • Go over SSL during all information exchange • Other benefits • Compress data before transferring • Bandwidth control • File filtering • “Quick synchronization” to avoid un-necessary CRC check

23. Backup • SmartSync -- “Mirror” 1 2 3

24. Backup • SmartSync -- “Backup” At the file-system level, different backup versions use hard links to point to the files. It will keep only one copy of un-changed files to save space

25. Management • Ease of use web administration interface • Compliant to most of the popular web browsers • Multi-lingual • 9-language UI • English, German, French, Spanish, Italian, Chinese (Traditional & Simple), Japan, Korean • Displayed language version is determined by web browser • File name supports ASCII, DBCS, and uni-code • Code page: 437, 850, 932, 936, 949, 950, 1255, 1256

26. Management • Power • Can work with “Signaling” serial-protocol UPS • APC SmartUPS, PhoenixTech, and Megatech • Can work with network UPS which is compliant to RFC-1628 • Configurable power schemes • “Wake-On-LAN”, “Scheduled Power On” • “Shutdown by critical event”, “Scheduled shutdown”

27. Management • Comprehensive event logs • Logs are categorized to different types • “System”, “Device”, “Security” • Logs are classified to different severities • “Info”, “Warning”, “Error” • Logs can be sent via e-mail • Run-Time notification • Configurable alerts for critical events • Multiple routes for notification • LCD, buzzer, e-mail, SNMP traps, web

28. Management • Disaster recovery • System configuration can be backed up periodically and automatically • Including server settings, account information, share settings, permission/security settings (ACL) • System profile can be easily restored/recovered to the same server or migrated to another server • Upgradability • All future patches or feature enhancements can be upgraded via using web browser

29. Differences • Features

30. Differences • Competitors

31. Near-Line Storage Server

32. Basic Concept

33. Key Features • File Server • Similar features as NAStorage X200 except: • Anti-Virus  optional • SmartSync Backup/Distribution • Disc Server • Automatically cache a physical disc to hard disk drive as a virtual disc image • Easily share the virtual disc image over network • Access virtual disc image is much faster than to physical disc

34. Disc Server • CD/DVD Operation Modes • CD caching only • Cache a CD/DVD title from CD/DVD drive to the “Disc image folder” located in HDD volume • User can access disc content directly from the cached image (HDD) for better performance • CD caching & replacing • Cache a CD/DVD title from CD/DVD drive to the “Disc image folder” located in HDD volume • The new cached image can automatically replace an existing CD/DVD image without losing its security/permission settings • User can access disc content directly from the cached image (HDD) for better performance

35. Disc Server • CD/DVD File System/Format • Most popular media are accepted • CD/DVD-ROM, CD-R/RW, DVD+-R/RW • CD/DVD Formats • ISO9660 level 1, 2, 3, CD-UDF 1.5, DVD UDF 2.0, Mixed mode, and Multi-session CD • Photo CD, Video CD, CD/DVD HFS+ • File system • ISO9660, Rock-Ridge Ext., High Sierra, HFS, Romeo, Joliet, Hybrid

36. Disc Server • Archive • Move historical data to a virtual disc image • Build an ISO image according to the selected files (historical data) stored in volume • Share the ISO image for accessing and free up the historical data from volume • Burn virtual disc image to recordable media • Once the virtual disc image is not worth for sharing, the image can be burned to writer for permanent keeping

37. Feature Plan in 2004

38. Version 4.2 • Disc Server • CD formats • Photo CD, Video CD • CD HFS+, DVD HFS/HFS+ • CD recording • Burn cached disc images to writer • NAStart • Burn disc image over network • Cache disc to NAS remotely over WAN • File Server • Tape library support (optional feature) • Minor changes according to customers’ feedback • ETA • Late June, 2004

39. Version 4.3 • Disc Server • Data Archive • File Server • Snapshot (optional feature) • NDMP (optional feature) • Data server and tape server • SmartExtend enhancement • “Volume” copy for data migration • Make multiple remote volumes sit under a single share • Protocols • DDNS • Minor changes according to customers’ feedback • ETA • Late August, 2004