MaxTronic International Co., Ltd. Sept. 16, 2009 Arena SS-6603E/R presentation iSCSI to SAS RAID subsystem

2 IP network What is iSCSI? iSCSI is an abbreviation of Internet Small Computer System Interface (SCSI) an IP-based storage networking standard for linking data storage facilities by DAS or SAN connections. Unlike traditional SCSI and Fibre Channel, which requires special purpose cabling, iSCSI can be run over long distances using existing network infrastructure. By carrying SCSI commands over IP networks.

3 Direct Attached Storage (iSCSI vs SCSI) SCSI Cable ~12m Network Cable ~100m SCSI iSCSI iSCSI requires normal Ethernet cable to directly connect server and RAID; unlike SCSI must use specific SCSI HBA and cable. Directly connection length of iSCSI cable reaches to 100 meter which much over maximum 12meter of SCSI cable.

4 FC SAN FC Switch iSCSI SAN FC SANs are dedicated storage networks, whose deployment requires specialized host bus adapters, specialized FC switches and FC storage arrays. Although all of these components are costly and add a layer of complexity iSCSI can easily be deployed on the commodity networking hardware without expansive equipments of FC HBA, cable and switch. Storage Attached Network (iSCSI vs FC)

5 Difference of iSCSI, NAS Same as traditional SCSI and FC interface, iSCSI require block-level access to the hard drives such as servers, databases, and high usage file servers. Network Attached Storage (NAS) uses file-based protocols such as NFS or SMB/CIFS for remote files sharing. NAS NAS Storage File Level File System Computer iSCSI iSCSI Storage Block Level Computer File System

6 Comparison with SCSI/FC/NAS iSCSISCSIFCNAS Data Level Block File Environment DAS/SANDASDAS/SANNAS Cable EthernetSCSIFCEthernet Cable Length Long (100m) Short (12m) Very Long (10km) Long (100m) Bandwidth 1Gb/s (125GB/s) 320MB/s8Gb/s (800MB/s) 1Gb/s (100GB/s) Add-on Card NICSCSI HBAFC HBANIC Switch Ethernet switch XFC switchEthernet switch Total of Cost (TOC) LowMiddleVery HighLow

7 Market Segmentation SAN DAS Performance Image printing / output SMB data replication / backup Enterprise Mail / Web / Data Server Remote educated / Online training On-line heavy duty editing / broadcasting / gaming / workstation Clustering / Virtualization / Clouding Hospital medicine / X-ray storage system VOD on Education / Entertainment DVR, Surveillance Environment HD Video Editing / /Movie Maker Huge data capacity Sustained performance SAN required Low TOC (total of cost) iSCSI Target Segment Extreme performance Heavy-loading data storage High-end SAN Military / Government data-center

8 iSCSI Application Server Virtualization SAN management

9 iSCSI application Surveillance

10 Why iSCSI? Cost-Effective: Consolidate hardware and resources through advanced technology Flexible: Eliminates physical limitations of dedicated storage networks Easy Management: Allows to quickly and easily manage and allocate server and storage resources IP network

11 Arena New iSCSI Product Model No.SS-6603ESS-6603R Hardware ControllerSingle (Upgradeable)Dual (Redundant) Controller CPUIntel IOP34x 1.2GHz Cache Memory2GB(default) up to 4GB DDR II Battery BackupYes (Optional)Yes Host Channel No.4 x iSCSI GbE8 x iSCSI GbE Disk InterfaceSAS (SATA compatible with AA-MUX tray board) Disk Channel No.16 x 3.5" swappable trays ExpansionYes, up to 6 x 16bay SAS JBOD ManagementEmbedded GUI, CLI through standard LAN UPS monitoringYes Hot Swap Power2 x 460W Redundancy Hot Swap Fan3 x Turbo Fan RAID LevelsJBOD, 0, 1, 3, 5, 6, 10, 30, 50, 60, NRAID

12 Front/Rear View PSU Controller Cooling Module Power ON LCD Up/ Down button Enter/ Escape button Power Fault Access Identifier

13  Maxtronic redundant system design extends the no- single-point-failure to the controller entity.  Two controllers in one system. They are named by controller A (left/top), and controller B (right/bottom).  A full-duplex RCC (redundant communication channel) is established for synchronization purpose. - Configuration - Object state - Write cache  The write-cache data is preserved only when one of the controller is failed. Redundant System Overview Controller A Cache Coherence Channels Controller B

14 On Board SAS Expander Flexible to support from 12-bay, 16-bay, and 24-bay Cache coherence X4 full-duplex SAS for cache coherence PCI Express X 8 Up to 2000 MB/s transfer rate High Speed BP Melt Hot swappable redundant controller Support up to 24 drives in one enclosure Intel XScale IOP341 DDR2-533 Cache Memory ECC and BBM protected Up to 4GB memory size Expansion Port Cascade external SAS JBOD Support SAS expansion, up to 128 SAS devices Dual 4Gbps Fibre Channel Up to 800 MB/s transfer rate To support quad 4G FC ports Phone Jack Communication with host COM port On-board Ethernet Port Embedded web server with GUI Remote centralized management Controller Overview Host Interface Daughter board To support SAS, iSCSI, PCI-e, and FC

15 Management Interface (GUI) Environment Control Rear View Front View Online Help Logon Prompt Version

16 Hard Disks RAID Structures The storage resources are managed as storage objects in a hierarchical structure. Virtual disk LUN mapping Unused Disks Local Spare Global Space  Local spare and global spare disk Disks Groups  Disk group ( DG) Logical Disks  Logical disk (LD) JBOD Disks Logical Units  Logical Units (LUN) Volumes  Volumes

17 Unique Features Highlight  Single Controller Upgradable  SAS JBOD expansion  Snapshot  Advance Array Functions  PathGuard™ MPIO  RAIDGuard Central™  Green Design

18 Online Controller Upgradable Single controller model upgradeable which is field upgradable to a redundant solution by on-line without any down-time.

19 SAS JBOD expansion = 112 disks + Arena New iSCSI can expand up to 6 external SAS JBOD enclosures and capacity up to 224TB in a chain (using 2TB SATA drives).

20 Expanding additional JBOD enclosure

21 Snapshot 1:002:003:00 Timeline Virus Data Growing RollBack / Data Restore to 1:00 Embedded Snapshot function is host-independent. User is allowed to create 512 shots and instant restore. Microsoft Shadow Copy (VSS) compatible, allows taking manual or automatic snapshot of data.

22 Advance Array Functions Disk Cloning, a method to automatically copy data to spare disk and replace the sick disk. It could be configured to trigger by the following conditions: - Over bad block threshold of disk. - Detect SMART warning from disk. Bad Block HealthOK Sick Cloning Trigger Bad block alert Disk SMART - Disk Cloning

23 Advance Array Functions Array Roaming, array member disks has recorded specific identification when original RAID system or controller faulty, the function provides a easily way to recognized data back by just move member disks to the same model and working RAID system. Fail Working - Array Roaming

24 Advance Array Functions Array Recovery, a embedded utility to rescue array set back from a fatal error of when parity array (Raid3/5/6) unexpected lose too many disks and makes array fail. - Array Recovery 1st Disk Fail 2nd disk Fail Array Recovery RAID 5 Fail~ RAID 5 OK

25 Advance Array Functions Array Scrubbing, this feature supports parity check and recovery for disk groups, logical disks, and hard disks. Bad sectors will be reported when detected. - Array Scrubbing Stop Repaired

26 PathGuard ™ MPIO Server Host 1 Host 2 Before Server Host 1 Host 2 After Path Guard Double Bandwidth Boost up Performance  Boost up performance  Load balancing

27 RAIDGuard Central ™ Ethernet Switch ․․․ Fan Error Error  Event notice  Mail and MSN notice

28 Green Design  High efficiency - High efficiency and load balance power module - Built-in Power-FAN speed control  Disk Standby - Disk will auto-spin-down when enable standby in a period of time without host IO access.  Smart FAN control - Advanced FAN speed control. - Auto-adjusted FAN speed by different system temperature. ~12W Standby ~5W (50% saving)

29 MPIO Installation Procedure After its installation is completed, reboot the host OS. Click "Next" to start installation. Setup Path Guard utility Start to Install MPIO Installer Verify if or "vender name_model name" After installed reboot the OS Start MPIO GUI MPIO Driver Installed

30 MaxTronic International Co., Ltd. TEL: FAX: F. No.529,Chung Cheng Rd., Hsin-Tien City, Taipei Hsien, Taiwan.