IBM System Storage
© 2007 IBM Corporation
The Six “S”s of SAN(Building a Better Infrastructure)
Scott [email protected]
IBM Systems Storage
© 2007 IBM Corporation
Storage Virtualization Layer
VirtualDisk
VirtualDisk
VirtualDisk
VirtualDisk
HPEMC
DS4000
DS8000HDS
The World Of Storage
IBM Systems Storage
© 2007 IBM Corporation
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
IBM Systems Storage
© 2007 IBM Corporation
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!
IBM Systems Storage
© 2007 IBM Corporation
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
IBM Systems Storage
© 2007 IBM Corporation
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
StorageStorageNetworkNetwork
NodeNode
Managed Disks
Virtual LUNs Virtual LUNs Virtual LUNs Virtual LUNs
NodeNode NodeNode NodeNode NodeNode NodeNodeNodeNode NodeNode
Storage Virtualization
IBM Systems Storage
© 2007 IBM Corporation
The Six “S”s of SAN – Storage VirtualizationCustomer Challenge Virtualization Benefits
Application Availability
Reconfiguration
Migrations
Non-Disruptive Operations
Physical storage changes are not visibleto application servers
Complexity & Personnel Productivity
Most customer have storage from multiple vendors
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
Storage Utilization
Capacity not efficiently used
Difficult to manage and monitor utilization
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
IBM Systems Storage
© 2007 IBM Corporation
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
IBM Systems Storage
© 2007 IBM Corporation
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
IBM Systems Storage
© 2007 IBM Corporation
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
IBM Systems Storage
© 2007 IBM Corporation
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
IBM Systems Storage
© 2007 IBM Corporation
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.
IBM Systems Storage
© 2007 IBM Corporation
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NOTES:
Performance is in Internal Throughput Rate (ITR) ratio based on measurements and projections using standard IBM benchmarks in a controlled environment. The actual throughput that any user will experience will vary depending upon considerations such as the amount of multiprogramming in the user's job stream, the I/O configuration, the storage configuration, and the workload processed. Therefore, no assurance can be given that an individual user will achieve throughput improvements equivalent to the performance ratios stated here.
IBM hardware products are manufactured from new parts, or new and serviceable used parts. Regardless, our warranty terms apply.
All customer examples cited or described in this presentation are presented as illustrations of the manner in which some customers have used IBM products and the results they may have achieved. Actual environmental costs and performance characteristics will vary depending on individual customer configurations and conditions.
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IBM Systems Storage
© 2007 IBM Corporation
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