iSCSI

1. iSCSI Mitchell Smith Sr. Technical Trainer CNI/ATT masmith@novell.com Shawn Hoopes Technical Trainer ATT shoopes@novell.com Mark Gonnelly Technical Trainer ATT mgonnelly@novell.com Jeff McMurdie Technical Trainer CNI/ATT jmcmurdie@novell.com

2. Novell exteNd™ Opening the door to Web services : Novell Nsure™ : Novell Ngage Securely getting the right information to the right people The experience to solve your business problems Novell Nterprise™ The best foundation for your mixed environment Novell one Net vision SM : : Novell Ngage services combine the real-world experience and knowledge of business management consultants around the world to make sure every Novell solution you implement is based on best practices, customized to meet your needs, and capable of delivering the highest possible return on investment.

3. Agenda Storage Trends • DAS (Direct Attached Storage) • NAS (Network Attached Storage) • SAN (Storage Area Network) 1 Benefits of NetWare® as a storage platform 2 iSCSI the solution for testing and training Clustering 3 Configuring iSCSI storage – Demo 4 Installing Novell Cluster Services™ (NCS) – Demo 5 Creating and migrating Cluster resources - Demo 6 Novell ATT courses 7

4. Storage Today—DAS, NAS, and SAN • Companies are detaching storage from servers to manage escalating storage needs • This means deploying NAS and SAN technologies • Storage area networks and network attached storage require 75% less personnel to maintain than traditional direct attached storage Netware Windows NT/2K Linux/Unix Direct Attached Storage (DAS) Netware Windows NT/2K Linux/Unix NAS Network Attached Storage (NAS) Storage FC Switch Windows NT/2K Netware Storage Area Network (SAN) Linux/Unix

5. Direct Attached Storage (DAS) Data is bound to the server hosting the disk Expanding the storage may mean purchasing and managing another server Storage is often provisioned badly In heterogeneous environments, management is complicated The Problem with DAS Netware Windows NT/2K Linux/Unix

6. Network Attached Storage (NAS) Each appliance represents a larger island of storage Data is bound to the NAS device hosting the disk and cannot be accessed if the system hosting the drive fails Storage is labor-intensive and thus expensive NAS Issues Netware Windows NT/2K Linux/Unix NAS

7. Storage Area Network (SAN) Benefits of SANs • Server Consolidation • Storage Consolidation • Storage Flexibility and Management • LAN Free backup and archive • Modern data protection (change from traditional tape backup to snap-shot, archive, geographically separate mirrored storage) Windows NT/2K SAN Switch Netware Linux/Unix

8. Storage Area Networks (SANs) • Result of applying core networking principles to storage • Retains the flexible topologies, scalability and dynamic behavior of networks • Servers are attached to 2 distinct networks • Back-end – servers connect to storage devices • Servers become clients of storage devices • Front-end – Unchanged LAN • Clients see the SAN as DAS (Direct Attached Storage)

9. Key Benefits of NetWare 6 as a Storage Platform • Totally scalable, high-performing, feature-rich, distributed SAN file system: Novell Storage Services™ (NSS) • Up to 8 TB volumes (no limit to the number of volumes) • Journaling • Compression • Open file backup support • Mirroring and striping • Disk quotas • Volume pooling and junctions • High integrity volumes-flush cache on close • Shared disk support for better SAN integration • XML-based management infrastructure

10. Key Benefits of NetWare 6 as a Storage Platform (cont.) • Native support for all major client access methods • Novell clients (NCP) • Windows clients (CIFS) • Unix clients (NFS) • Macintosh clients (AFP) • Web and Internet clients (HTTP, HTTPS, FTP, and WebDAV)

11. Key Benefits of NetWare 6 as a Storage Platform (cont.) • Highly-scalable, load-balancing, directory-enabled clustering environment • Up to 32 servers in an all-active cluster • Fan-out failover for load balancing on failover • Transparent failover • Enhanced cluster resource management • Integrated with eDirectory™ • Intelligent cluster volume operations • Built in cluster volume manager allows for dynamic volume changes in the SAN without rebooting any servers

12. Novell Cluster Services NetWare 6 Storage Area Network (SAN) • General purpose backup for all SAN data • No more zoning off portions of the SAN for specific operating systems • No need to learn and deploy multiple clustering solutions • No more mis-provisioned disks on servers or NAS devices Netware6 Cluster Windows, Mac, Unix, and Novell clients Windows NT/2K App Server Linux/Unix App Servers

13. So, get a SAN!

14. NTS problem • We can’t teach a clustering course on enterprise equipment because the hardware is too expensive and too heavy.

15. iSCSI to the rescue • Any computer that meets NW6 hardware requirements can become a SAN storage device • Use existing servers as your shared storage. iSCSI can run as an additional service. • iSCSI on Gigabit Ethernet Hardware is a fraction of the cost of a full Fibre Channel SAN solution. • iSCSI is slower but even cheaper on 100 Mb.

16. Before and After BEFORE 950 LB server rack for 12 students AFTER 4 laptops and a hub for 2 or 3 students

17. iSCSI Software Stack • Target (storage server) appears as local storage device to Initiator(s) • Initiator(s) are storage clients that connect to the target server Target Initiators

18. iSCSI Software Stack iSCSI Target: • iscsitar.nlm Target controller • Ton.ncf Batch file to load target • Toff,ncf Batch file to unload target iSCSI Initiator: • iscsinit.nlm Initiator controller • iscsiham.ham NetWare HAM driver • ion.ncf, Batch file to load initiator • ioff.ncf Batch file to unload initiator iSCSI common files: • iscsilib.nlm iSCSI common functions • iscsinrm.nlm Novell Remote Manager plugin • ioctl.nlm interface functions • Iscsixml.nlm XML interface module • red_flag.gif Novell Remote Manager iconsgreen_flag.gif • yellow_flag.gif

19. iSCSI Target Create a single iSCSI partition on target machine. Load iscsi target (ton.ncf) on the target machine. It will display the GUID of the iSCSI partition.

20. iSCSI initiator(s) • Load SCSIHD.CDM if not already loaded. • Run ION.NCF (loads files) • Use NoRM or command line to connect to Target (ip address) • In NoRM, select Storage Services -> iSCSI Services. Click on the New Session button and enter the ip address of your target. • Or at the command line, enter: iscsinit connect <ip address> • View the available disk: • In NoRM: Manage Server->Volumes->Disk Partitions • Command line: list devices • ConsoleOne: Properties of server->media tab->devices

21. iSCSI initiator(s) – (Continued) • Initialize the iscsi disk, make it sharable & create an NSS partition using ConsoleOne® or NoRM. • You don’t have to use all the space available. • Create a Pool on your newly created partition. • Create a volume(s) in your pool. • If users will need file access Cluster Enable the Volume • Chose access protocols - NCP, CIFS, AFP • Mount the volume

22. NoRM interface

23. Demonstration 1 2 3 Loading Initiators Connect to Target Command line NoRM Confirming all Initiators see the target device List Devices ConsoleOne Loading Target Setting up iSCSI partition 4 5 6 Install Novell Cluster Services Create a Cluster Resource Create Cluster Enabled Volume

24. ATT Courses • Novell Advanced Technical Training classes • www.novell.com/registernow/ Troubleshooting Deployment • NetWare 6.5 First Class • Novell Cluster Services • Advanced eDirectory 8.7 • iChain® • Novell Nsure Technical Workshop • ZENworks for Servers • Advanced DirXML® • Advanced NetWare 6 Services and Troubleshooting • GroupWise® 6.5 • ZENworks® for Desktops 4 (4 Day Course)

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