The Six “S”s of SAN (Building a Better Infrastructure)

1. The Six “S”s of SAN(Building a Better Infrastructure) Scott Drummond spd@us.ibm.com

2. Virtual Disk Virtual Disk Virtual Disk Virtual Disk Storage Virtualization Layer HP DS8000 HDS EMC DS4000 The World Of Storage

3. The Six “S”s of SAN • Servers • Operating Systems, Device Drivers/Dual Path Device Drivers, HBA’s & Microcode • SAN Fabric Components • Switches, Directors (and Blades), SAN Routers • Storage Virtualization • Flexibility and Efficiency • Storage • Disk Systems, Tape Drives, Tape Libraries • Software • Storage Resource Management, SAN Exploitation, CMDB input and exploitation • Services • Planning, Testing and Implementation, Education The Three Things That Matter

4. The Six “S”s of SAN - Servers • Server Planning is crucial to SAN Implementations: • Operating System levels • Native File Systems • Device Drivers • Dual Path Device Drivers • iSCSI Drivers • HBA's and Their Microcode Levels • Understanding Application requirements and priorities • Important for introducing automated Policy Management and implementing Tiered Storage and SLA’s. • Understanding Data requirements • Important for implementing virtualization – Storage and File System!

5. The Six “S”s of SAN – SAN Fabric Devices • 8 Gb/s Fibre Channel coming in 2008 (FCP and FICON protocols) • Brocade announced 8 Gb/s FCP on October 15, 2007 • 2007 - 10Gb/s for Trunking (ISL) between SANs • Higher Port Count Density in Directors and Core Switches • Blades/Modules to maintain investments in SAN Directors • SAN Routing is becoming important in managing large multi-site SANs

6. Storage Virtualization The Six “S”s of SAN – Storage Virtualization • In - band • Disk Level Virtualization • Out - of – Band • File System Virtualization • Tape Virtualization • Implemented via Library Modules

7. The Six “S”s of SAN – Storage Virtualization Virtualization Benefits Customer Challenge Non-Disruptive Operations • Physical storage changes are not visibleto application servers Application Availability • Reconfiguration • Migrations Logical to Physical Mapping • Allows use of heterogeneous storage to beused regardless of storage provider • Management of storage can be performedin a common way from a single point ofmanagement Complexity & Personnel Productivity • Most customer have storage from multiple vendors Virtual Storage Pools • Capacity can be allocated from multiple storagearrays • Management of capacity utilization can be donefrom a central point • Pools of different capabilities can be created Storage Utilization • Capacity not efficiently used • Difficult to manage and monitor utilization

8. The Six “S”s of SAN - Storage • Most Enterprise Storage at 4 Gb/s attachment in 2007 • Moving to larger/faster disks - 300 GB 10k! 450GB or 600GB soon! Petabyte Systems on the near horizon. SATA disk are available. • HDD price/GB continues to erode but at a lower rate. • Matches areal density erosion rate • More advanced function software – Replication (Flash, Two Site (Synchronous or Asynchronous), Three Site) and LPAR • Storage is using SNIA Storage Management Initiative Specification (SMI-S) • Low end storage is shipping SATA with SAS interfaces (3Gb/s – 6Gb/s in 2008) • Large Scale low cost memory solutions in research labs • Recent news – nanowire based memory (10-100x times flash memory) • Long Term – AFM Storage

9. The Six “S”s of SAN - Software • CMDB • IBM, EMC, HP & Others • Framework Managers • Tivoli, HP, CA, BMC • Storage Resource Managers (SRM) • SAN Fabric Managers • Storage Element Managers • SAN Exploitation • LAN-Free Backup • Hardware Assisted Backup

10. The Six “S”s of SAN - Services • Planning for SANs is crucial • SAN skills are more available now, but still not plentiful • Implementing SANs can be very political - having a third party to arbitrate between groups can be effective • A Sampling of Industry Services Offerings: • Storage Assessment • SAN Planning and Implementation • Virtualization Planning and Implementation • Fibre Transport Services

11. Summary • Growth of storage continues unbounded, driven by unstructured data • Data protection and storage management require significant focus • Long-term digital preservation is a significant challenge • Media Migrating & Audit • Interpretation of the data • What application processes it at the end • Innovation in storage technologies continues • Memory Storage, Denser Disk and Tape, AFM Storage

12. Thank you for your attention !

13. Abstract The Six "S"s of SAN" - Servers, SAN Fabric, Storage Virtualization, Storage, Software, Services A good storage infrastructure is crucial to maximizing the informational value of a company’s data. It needs to provide reliable access to applications’ data, good I/O performance and have an appropriate cost in relation to the availability and performance requirements. Other attributes of flexibility, scalability and advanced functions such as instant copy and/or remote copy are also highly desirable. Storage infrastructure architectures can range from Direct Attached Storage (DAS) to Network Attached Storage (NAS appliances or also know as Network File Servers) to Storage Area Networks (SANs) and finally to SANs augmented by various storage virtualization solutions. The combination of the architecture of customer choice with appropriate storage management practices, policies and procedures is key to improving customer’s data availability, data access performance and controlling costs. Smaller companies can be quite successful with DAS or DAS + NAS solutions, although they have certain cost or flexibility inefficiencies if the company’s data grows significantly. Larger companies can benefit from the availability and scalability benefits of SAN or SANs + storage virtualization. NAS Gateways combined with SANs and/or SAN + storage virtualization is another good solution. In this presentation we'll focus on each of the six elements of a SAN with an eye towards the latest industry trends in each.

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