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The IBM 2105 Model E10 is an Enterprise storage server with single phase power and 420 GB - 1.7 TB approximate end-user capacity.
Highlights
The 2105 Storage Servers offer customers
Support for one or more of the major server platforms including UNIX Windows NT S/390 AS/400 and Netware.
Model Highlights 2105-E10
The IBM Enterprise Storage Server is your ideal SAN solution
Fibre channel attachment capability
Extensive StorWatch - TM management capabilities through the Web
Excellent scalability from 400 GB to over eleven terabytes
Superior performance capabilities with options and innovations to meet your changing heterogeneous environment needs
Availability required to support e-business and other mission-critical applications
Description
e-business is generating exponential growth in immediately accessible always available and highly functional storage capacity. In the e-centric world information demand is like electricity you plug in you get it. Dependable appliance-like intelligent storage served by its own network is required to provide information as a utility .
The IBM Enterprise Storage Server is the ultimate Storage Area Network - SAN appliance providing the information fuel that runs your e-business engine .
Extensive heterogeneous server connectivity makes the Enterprise Storage Server a natural fit for server consolidation requirements.
Using the Enterprise Storage Server to address any or all of your strategic and tactical business goals will give your organization the business advantage needed to survive and thrive in the e-world. The Enterprise Storage Server
Supports rapid universal access to vast quantities of data support of business intelligence and other business-critical applications
Provides consistent efficient and effective enterprise storage resource planning through its enterprise-wide support and management scope
Offers an IBM Seascape* solution that provides the outboard intelligence required by SAN solutions offloading host servers which frees up valuable processing power for applications
As a comprehensive SAN-based storage solution the Enterprise Storage Server provides considerable management flexibility to meet the fast-paced requirements of the next century.
The IBM Enterprise Storage Server is a superior Storage Area Network - SAN storage solution that supports critical requirements for strategic business initiatives including
e-business
Enterprise resource planning
Business intelligence
Server consolidation
All other mission-critical applications
Deploys the IBM Seascape principles
Powerful storage server
Snap-in building blocks
Universal data access
Builds on the rich legacy of IBM storage systems solutions across the major operating system platforms
Introduces innovations to deliver substantial unique business advantages
Provides heterogeneous attachment to all major server platforms including S/390 AS/400 Windows NT and many varieties of UNIX
Supports fibre channel attachment capability
Has excellent scalability
From 400 GB to over eleven terabytes
Simple selection from 16 standard configurations to meet capacity and performance needs
Delivers superior performance that can be optimized to meet your changing heterogeneous environment needs
High bandwidth and advanced transaction processing capabilities provide solutions for both on-line and batch applications
Innovations to reduce resource contention and dramatically improve performance
Parallel Access Volumes
Multiple Allegiance
I/O Priority Queuing
Supports 7 X 24 availability requirements with
High availability architecture
Redundant componentry
Extensive data replication services
Access to data while making a copy using Concurrent Copy
Business continuity through remote copy services - PPRC and XRC
Rapid data duplication through FlashCopy providing extensive capabilities to exploit manage and protect your information in a 7 x 24 environment
Works in conjunction with the IBM StorWatch ESS Specialist and ESS Expert comprehensive Web-based tools for
Configuration
Performance
Asset and capacity management
Facilitation of storage area network operations
Maximizes storage server availability through redundancy and nondisruptive service with design to virtually eliminate single points-of-failure or -repair
Product PositioningThe Enterprise Storage Server is the storage of choice for users wanting comprehensive enterprise disk storage consolidation and data sharing on multiple heterogeneous server platforms with combined storage requirements of more than 400 GB.
The Enterprise Storage Server is the longer term strategic enterprise disk storage solution for traditional RAMAC 3 Versatile Storage Server and RAMAC Virtual Array disk storage users. StorWatch Enterprise Storage Server Specialist and Expert centralized management software provides the necessary control functions to enable management of all storage from a single location.
The Enterprise Storage Server is the right choice if you require high-performance RAID-5 read and write cache or the flexibility of common storage for multiple servers with ESCON FICON SCSI and fibre channel - including FC-AL channel attachments.
Technical Description
The IBM Enterprise Storage Server is a member of the Seascape family. It consists of a storage server and attached disk storage devices. The storage server provides integrated caching and RAID support for the attached disk devices. The disk devices are attached via a serial interface. The Enterprise Storage Server can be configured in a variety of ways to provide scalability in capacity and performance. Redundancy within the Enterprise Storage Server provides continuous availability. It is packaged in one or more enclosures each with dual line cords and redundant power. The redundant power system allows the Enterprise Storage Server to continue normal operation when one of the line cords is deactivated.
The Enterprise Storage Server provides the image of a set of logical disk devices to attached servers. The logical devices are configured to emulate disk device types that are compatible with the attached servers. The logical devices access a logical volume that is implemented using multiple disk drives.
The following host I/O interface attachments are supported
SCSI-3 Parallel Interface
ESCON
On SCSI-3 interfaces the Enterprise Storage Server emulates a variety of fixed-block devices with either 512 or 520 byte blocks. SCSI-3 is in general a superset of SCSI-2. A SCSI-3 disk device can be attached to a SCSI-2 initiator provided the cabling can be interfaced. Many SCSI-2 initiators attach directly to the cabling specified for the SCSI-3 parallel interface but are referred to as SCSI-2 initiators because they limit their use of the command set to the SCSI-2 subset. Host systems with SCSI-2 or SCSI-3 interfaces can attach to the Enterprise Storage Server The Enterprise Storage Server provides multiple SCSI I/O interfaces - busses each with multiple SCSI targets each with multiple disk logical units. The storage provided by the Enterprise Storage Server for SCSI interfaces can be configured so that it is shared among multiple SCSI interfaces if desired.
On ESCON interfaces the Enterprise Storage Server emulates one or more IBM 3990 control units attaching variable size IBM 3390 devices in either 3390 or 3380 track format. The Enterprise Storage Server provides multiple ESCON interfaces that provide a set of control unit images each with multiple disk devices. The storage provided by the Enterprise Storage Server for ESCON interfaces is configured so that it is accessible from any ESCON interface.
Physical Structure
The physical configuration of the Enterprise Storage Server is composed of the following components
Storage Server - composed of two clusters
Cluster - provides the facilities to control and manage data transfer and advanced functions. Should one cluster fail the remaining cluster can take over the functions of the failing cluster. A cluster is composed of the following sub-components
Host Adapters - each cluster has one or more host adapters - HAs . Each host adapter provides one or more host I/O interfaces. A host adapter can communicate with either cluster complex.
Device Adapters - each cluster has one or more device adapters - DAs . Each device adapter provides one or more storage device interfaces. Disk drives are attached to a pair of device adapters one in each cluster so that the drives are accessible from either cluster. At any given time a given disk drive is managed by only one device adapter.
Cluster Complex - the cluster complex provides the management functions for the Enterprise Storage Server. It consists of cluster processors cluster memory cache nonvolatile storage - NVS and related logic.
Cluster Processor - the cluster complex contains four cluster processors - CP configured as symmetrical multiprocessors - SMP . The cluster processors execute the licensed internal code that controls operation of the cluster.
Cluster Memory / Cache - is used to store instructions and data for the cluster processors. The cache memory is used to store cached data from the disk drives. The cache memory is accessible by the local cluster complex by device adapters in the local cluster and by host adapters in either cluster.
Nonvolatile Storage - NVS - is used to store a nonvolatile copy of active written data. The NVS is accessible to either cluster-processor complex and to host adapters in either cluster. Data may also be transferred between the NVS and cache.
Disk Drives - provide the primary nonvolatile storage medium for any host data stored within the Enterprise Storage Server Storage devices are grouped into ranks and are managed by the clusters. [PDF SPEC SHEET]
