1. The Linux Storage People Simple Fast Massively Scalable Network Storage Coraid EtherDrive ® Storage

2. The Linux Storage People Coraid developing a simple storage protocol to connect low cost disks with low cost networking. The protocol is open and now included in the Linux kernel (2.6.11+).

3. The Linux Storage People ATA-over-Ethernet (AoE) (A simple storage protocol) AoE Ethernet PHY IP TCP iSCSI AoE sits directly on top of Ethernet AoE is not routed therefore no IP or iSCSI layers are required AoE is simple, secure and requires less processing

4. The Linux Storage People Network Services Drivers Other Drivers Other Drivers Other Drivers Other Drivers Linux Kernel Daemons & Services Ethernet Driver MAC/PHY Device Drivers Disks Block Device Drivers Memory Management Process Management File System Control Networking Other Block Devices AoE Initiator Driver Disk Drivers Other Drivers AoE Target Devices AoE bridges Block Devices to Ethernet.

5. The Linux Storage People File System (EXT3, JFS, XFS, GFS, etc.) Logical Volume Manager (LVM, LVM2) RAID Software (RAID tools, MDADM) Block Devices AoE Devices Typical Linux Storage Stack Optional

6. The Linux Storage People Networked Storage Systems

7. The Linux Storage People Ethernet Client LAN AoE Simply connect storage and server with Ethernet Server and storage communicate using AoE protocol Server discovers the new EtherDrive block storage devices in its /dev directory /dev/etherd/e1.4 Shelf #1 Slot #4 Typical System Configurations SERVER

8. The Linux Storage People Client LAN Using standard Ethernet a storage LAN is created Storage now has unlimited scalability Storage LAN Typical System Configurations SERVER

9. The Linux Storage People SERVERSERVER Client LAN Storage LAN Typical System Configurations SERVER Multiple Server can share the storage pool Storage is not captive inside a single server In the event of a server failure, the storage can be accessed by another server

10. The Linux Storage People SERVERSERVER AoE Storage Client LAN A single AoE device can be partitioned and shared A single storage volume can be shared using a cluster filesystem like GFS Storage LAN AoE Storage Typical System Configurations SERVER

11. The Linux Storage People EtherDrive ® SATA+RAID (SR) Storage Appliance

12. The Linux Storage People EtherDrive ® Storage Appliances SATA Disk CED3U15SS 3U 3U 15 SATA Disk Slots 3U Chassis with slots for up to 15 SATA disks Accepts any SATA disk size Up to 11.25TB with 750GB disk drives Users may buy their own disks, and save money Includes RAID controller

13. The Linux Storage People AoE Bridge SATA Disk Controller RAID Controller SATA Disks Ethernet Dual GigE Interface AoE Protocol Processing Internal RAID Controller SATA Interface (4 or 15 Disk) EtherDrive ® Storage Appliances include: EtherDrive ® Storage Appliances Command Line Interface 1.RS232 Serial Port RS232 Serial Console Port KVM Console Port Coraid Ether Console (CEC) 2. KVM Port 3.Coraid Ether Console (CEC) Linux host application program

14. The Linux Storage People SATA Disk Simple RAID setup SATA shelf 2> Shelf #2 Slot # 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 SATA shelf 2> make 0 raid5 2.0-9 make 1 raid5 2.10-13 spare 1.14 online 0 online 1 SATA Disk /dev/etherd/e2.0/dev/etherd/e2.1 EtherDrive ® Storage Appliances Console Port

15. The Linux Storage People SATA Disk Easily grow volumes SATA shelf 2> Shelf #2 Slot # 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 grow 0 raid5 2.10-13 SATA Disk /dev/etherd/e2.0 RAID 0, 1, 5, 10 supported EtherDrive ® Storage Appliances Console Port

16. The Linux Storage People EtherDrive ® Storage Appliances Client LAN Alarms are reported to the Servers syslog SERVER UDP port 514 alarm message SATA Shelf 2 > disk failure 2.3, RAID5 2.0 degraded 192.168.1.54 205.185.197.30 Shelf # 2

17. The Linux Storage People EtherDrive ® Storage Appliances Client LAN Volume access can be restricted based upon Server MAC address SERVER 00-40-CA-6E-74-55 SERVER 20-F0-15-EF-04-FA RAID5 2.0RAID5 2.1 Port assigned VLAN is also an effective zoning means

18. The Linux Storage People Coraid Linux NAS Gateway CLN20

19. The Linux Storage People Network Attached Storage (NAS) NAS is a great application for EtherDrive ® Storage NFS or CIFS file sharing protocols transport data over TCP/IP & UDP between clients and the NAS appliance NAS is file sharing & file storage over Ethernet

20. The Linux Storage People Typical NAS System NAS presents a large storage volume created with RAID NAS SERVERSERVER NAS stores files via CIFS or NFS Clients and Servers can share file storage on the network BobSueBillEmailWeb NAS1 CIFS or NFS RAID Bob Sue Bill Email Web NAS1

21. The Linux Storage People NAS Inside NAS Typical NAS appliance consist of a processor, memory, RAID controller, Disks and network interface RAID Controller ProcessorMemory Network Interface Disk LAN Block Storage Access CIFS/NFS File Sharing NAS Appliance CIFS or NFS file requests are received through the network interface Processor services request by accessing the RAID disks as block storage Processor assembles blocks of data into files for export to the network 1011111000110010 ANYFILE.xxx

22. The Linux Storage People Expanding NAS When a NAS appliance is full, what can you do? NAS SERVERSERVER Add another NAS But directory structure makes finding files more complicated Bob Sue Bill Email Web NAS1 BobSueBillEmailWeb NAS1 Bob Sue Bill Email Web NAS2 NAS FULL

23. The Linux Storage People RAID Controller Disk A Better NAS Remove the storage from the NAS ProcessorMemory Network Interface LAN Block Storage Access CIFS/NFS File Sharing NAS Gateway Access storage with ATA-over-Ethernet (AoE) protocol AoE Storage Block Storage Access via AoE RAID Controller Disk NAS Appliance AoE Network Interface

24. The Linux Storage People EtherDrive ® Storage with NAS NAS with scaleable storage SERVERSERVER NAS Gateway provides CIFS & NFS service Storage expands without complicating directory Bob Sue Bill Email Web NAS BobSueBillEmailWeb NAS NAS GATEWAY CIFS or NFS Bob Sue Bill Email Web AoE

25. The Linux Storage People A more reliable NAS with EtherDrive ® Storage SERVERSERVER Fail-Over NAS Gateway provides protection EtherDrive ® Storage is not captive to a single NAS head NAS GATEWAY Efficient high speed Backup and Restore is possible DATADATA COPY EtherDrive ® Storage with NAS

26. The Linux Storage People Simple Fast Massively Scalable Network Storage EtherDrive ® Storage