AIX Ver. 4 SysAdmin IV:Storage Management (Unit 8) – ESS Overview

Enterprise Storage Server (Shark System)

Unit Objectives:
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Position the ESS in the IBM disk offering and Seascape Architecture
Describe the components of the Enterprise Storage Server 2105 Model E and F
Allocate ESS storage to an AIX system using the StorWatch interface
Understand the ESS copy functions

Enterprise Storage Server – Highlights
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Powerful SeaScape Enterprise Storage Server:
– RAID 5 or Non-RAID
– Fast SSA Drives
– Fast RISC Processors
– Fault Tolerant System
– High Capacity Storage Subsystem (Up to 11 TB)
– Disaster Recovery Solutions
– Instant Copy Solutions
– OS/390 Parallel I/O
– Storage Sharing S/390, Open Systems

ESS Connectivity
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Sun, SP, HP, DG, AS/400, LINUX, DEC, Compaq
PCs, Windows NT, 2000, Novell

All these and more can access the ESS Enterprise Storage Server

ESS Major Components
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Cages/Disk Arrays
DC Power Supplies
RISC Processors and Device Adapters
Host Adapters
Fans/AC-Power
Rack Batteries

ESS Benefits
——————–
Extensive Scalability
– 420 GB to 11.2 TB
Breakthrough performance
– Performance-optimized hardware
Comprehensive availability
– No single point of failure or repair
– Remote Copy solutions, FlashCopy
Extensive connectivity
– UltraSCSI, Fibre Channel
– UNIX, Intel-based, AS/400 platforms
Flexibility
– Storage partitioning / sharing
– Easy management tools
– Web Interface : Storwatch ESS specialist

Storage Sharing
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Partitioned storage
– Logical volumes of various sizes
– Defined at installation time
– OS dependent

Concurrent attachment of mixed platforms
– HP, Sun, DG, Compaq, IBM etc
– Attachment options

Ultra SCSI, SCSI-2 F&W
Differential
– Fibre Channel connection

True Data Sharing
—————————
Shared access for similar servers
– AIX to AIX, NT to NT
– Clustering support (for example, HACMP, NT-cluster…) with RAID-5 protection
– No shared access for AS/400 (single level storage)
Single copy of data
– Data consolidation
– Data integrity
Use lock management functions within database manager or application
-Ideal for e-commerce applications
Single database for multiple servers provides greater flexibility

Enhanced ESS Models
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ESS Models E10/E20 processor complex
– Four 332 MHz 32-bit RISC processors
– 256 KB Level-2 cache (8 bytes wide)
– Three PCI buses each with none slots
– 3 GB maximum system memory (cache) per cluster

ESS Models F10/F20 processor complex
– Four 250 MHz 64-bit RISC processors
– 4 MB Level-2 cache (32 bytes wide)
– Four PCI buses each with eight slots
– 4/8 GB maximum system memory (cache) per cluster

Standard ESS Model F Configuration Options
——————————————————————
Usable RAID-protected Capacity
– 9 GB Drives (420 GB min – 840 GB max)
– 18 GB Drives (420 GB min – 5,600 GB max)
– 36 GB Drives (840 GB min – 11,200 GB max)

8 GB or 16 GB Subsystem Cache
Host Connectors
– 1 -16 FC ports
– 2 – 32 UltraSCSI ports
– 2 – 32 ESCON ports
Added-Value Functions
– Any and all functions on any configuration
– FlashCopy
– PPRC – Peer to Peer Remote Copy
– XRC
– OS/390 PAV

Logical Configuration: Definitions
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A LUN is the minimum unit of space that can be assigned to a server
A LUN appears as a physical disk to the server

Note: There are a lot of slides that I did not include that describe the ESS system.

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