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The IBM 2105 Model F20 has three phase power and 420 GB to 11.1 TB approximate end-user capacity in addition to increased scalability throughput and performance.
Highlights
Support for one or more of the major server platforms including UNIX Windows NT S/390 AS/400 and NetWare
Model Highlights 2105-F20
The IBM Enterprise Storage Server is your ideal SAN solution.
Supports the intermix of FICON ESCON Fibre Channel and SCSI attachments making the ESS a natural fit for storage and server consolidation requirements.
Increased performance and scalability with models with 8 GB 16 GB 24 GB or 32 GB of cache
Additional thirty-two - 32 standard capacity configurations
Concurrent support for all your major server platforms including OS/390 OS/400 Windows NT Windows 2000 NetWare and many varieties of UNIX
Extensive storage management capabilities including
FlashCopy for fast data duplication
Advanced Remote Copy Services for your synchronous and asynchronous backup and disaster recovery needs
Extensive StorWatch - TM management capability through the Web
Superior performance with options and innovations to meet your changing requirements
High availability to support your e-business and other mission-critical applications
Description
e-business continues to drive storage at an ever-increasing rate. e-commerce applications are deployed on heterogeneous servers and require high-function high-performance and scalable storage servers to meet the demanding requirements of Enterprise Resource Planning and Business Intelligence applications. The IBM Enterprise Storage Server has set new standards in function performance and scalability in these most challenging environments and is now enhanced to provide
Direct connection to Storage Area Networks - SANs
Advanced storage management functions which provide fast data duplication and high-performance backup and disaster recovery capability.
These Models Increase Scalability Throughput and Performance
The Enterprise Storage Server Models F10 and F20 provide significantly improved levels of performance thruput and scalability while continuing to exploit performance innovations introduced with the Models E10 and E20 such as Parallel Access Volumes Multiple Allegiance and I/O many new enhancements that will dramatically improve the overall value of Priority Queueing.
ESS in the marketplace and provide a strong base for our customers strategic Storage Area Network initiatives. These enhancements include new levels of granularity for installed systems remote copy services capabilities with synchronous and asynchronous options more than twice the available cache and immediate support for fibre channel Additional PCI buses faster state-of-the-art IBM RISC microprocessors plus up to 32 GB of cache memory all combine to provide unprecedented levels of performance and thruput. The increased bandwidth capabilities of the Models F10 and F20 allow for up to 100% greater thruput for sequential workloads or 25% greater thruput for database workloads. This allows customers to install 25-100% larger configurations in the Model F20 than were previously possible with the Model E20 depending on access density and the nature of the workload while maintaining industry leading performance. With these capabilities the ESS is perfectly suited to enable you to take advantage of the promise of SAN while protecting the significant investments you have already made in storage and I/T infrastructures.
FICON Extends the Performance Benefits of the Enterprise Storage\Server - ESS
The ESS Models F10 and F20 support native FICON connection over short-wave or long-wave fibre links to provide FICON attachment to IBM e - logo server zSeries or S/390 servers. This support is provided via the new Fibre Channel/FICON Host Adapters - #3021 and #3023 .
The most obvious benefits of FICON connectivity are increased per channel bandwidth and greater simplicity of channel fabric. This speed allows customers to collapse existing ESCON channels into FICON channels at the rate of approximately 4 1 or in some cases more if ESCON channel utilizations are relatively low. So a well-configured ESS will typically need no more than eight FICON channel interfaces in order to exploit the bandwidth.
Greater simplicity of configuration is achieved because the FICON architecture more Logical Subsystems - LSS per channel to match the increased channel bandwidth. Single stream sequential operations may experience a significant improvement in thruput - as much as 2X so that elapsed times for key batch data mining or dump operations will substantially improve. This can help provide relief for customers whose batch or file maintenance windows are constrained today.
Response time improvements may accrue for some customers particularly for data stored using larger blocksizes. The data transfer portion of response time is greatly reduced because the data rate during transfer is more than five times faster than ESCON. This improvement can lead to significant connect time reduction. The larger the transfer the greater the reduction as a percentage of the total I/O service time. Pend time caused by director port busy are reduced or eliminated because collisions in the director are reduced or eliminated with FICON architecture. For customers whose ESCON directors are experiencing as much as 45-50% busy conditions this will provide significant response time reduction.
With the advent of the ESS IBM introduced one of the most important advances in disk system architecture since cache -- Parallel Access Volumes - PAV . Simply stated PAV allows multiple concurrent I/Os to the same volume at the same time. Complementing this ability FICON channels can process multiple concurrent data transfers whereas ESCON channels process only one operation at a time. The maximum bandwidth of an individual RAID array within the ESS is approximately 45 MB/sec but the maximum bandwidth of an ESCON channel is only 17 MB/sec hence a single ESCON channel cannot exploit the maximum ability of the ESS arrays. PAV and FICON work together to allow multiple data transfers to the same volume at the same time over the same channel providing greater parallelism and greater bandwidth while simplifying configurations. Another performance advantage offered by FICON is that the ESS accepts multiple channel command words - CCWs concurrently without waiting for completion of the previous CCW. This allows setup and execution of multiple CCWs from a single channel to happen concurrently. Moreover I/O priority queueing is now handled at a higher point in the ESS system. Contention among multiple I/Os accessing the same data is now handled in the FICON host adapter and queued according to the I/O priority indicated by the Workload Manager.
Finally significant performance advantages can be realized by those customers who access their disk subsystems remotely. FICON reduces or eliminates data rate droop for distances up to 100 km for both read and write operations by using enhanced data buffering and pacing schemes. FICON thus extends the ESS ability to deliver high bandwidth potential to the logical volumes needing it when they need it. Older technologies are limited by the bandwidth of a single disk drive or a single ESCON channel but FICON RAID-5 and PAVs working together provide a high-speed pipe with multiplexed operation all the way down to users data.
Storage Area Network - SAN Connectivity and Functions
Serial Fibre Channel technology is rapidly replacing parallel SCSI channel attachment between open system - non-S/390 servers and disk and tape storage systems. The IBM ESS employs industry-standard Fibre Channel attachment to a wide variety of Intel-based servers running Windows NT Windows 2000 or Novell NetWare iSeries and AS/400 servers running OS/400 and UNIX servers from IBM Sun Microsystems and Hewlett-Packard. It also enables direct attachment to Storage Area Network components. The IBM Enterprise SAN is a high-speed switch fabric of centrally managed multivendor heterogeneous servers and storage systems. A SAN can help companies derive greater value from their business information by enabling IT resource management and information sharing any time anywhere across the enterprise.
ESS connectivity thru native Fibre Channel technology offers many performance advantages over parallel SCSI channel technology. Each Fibre Channel Host Adapter supports 100 MB/second full duplex data transfer over short wave fibre links. Fibre Channel technology is the ideal enabler for server and storage consolidation. It also expands connectivity options enabling hundreds of server and storage connections in a switched fabric network. This additional addressing capability supports large and growing storage consolidation and data sharing requirements.
Fibre Channel technology enables enterprises to increase distances between servers and storage devices from the 25 meter maximum imposed by SCSI connections up to 500 meters. This enhancement removes a significant constraint to configuration of large numbers of servers and storage devices and offers new configuration possibilities.
When used with SAN fabric components the ESS can be connected to servers over 10 kilometers away from the storage system. Extended distance capability is ideally suited to disaster recovery implementations such as remote disk mirroring. The interconnection of switches or hubs creates a switch fabric containing hundreds of Fibre Channel ports. This fabric provides the high performance scalability and fault tolerance required by the most demanding e-business applications and enterprise storage management applications.
Fibre Channel connectivity also demonstrates the flexibility adaptability and extensibility of IBM s Seascape Architecture. Such connectivity offers the potential for the ESS to fully participate in the many benefits anticipated as SAN technology matures including disk pooling LAN-less and server-less backup SAN-based remote copy enhanced configuration flexibility and improved availability.
Complete and current information on all supported Fibre Channel attachments including SAN fabric components is available the Web at
http //www.storage.ibm.com/hardsoft/products/ess/supserver
LUN Masking
The ESS provides LUN Masking enabling you to control which servers can access which logical units or devices.
IBM Subsystem Device Driver
The IBM Subsystem Device Driver - SDD provides load balancing and enhanced data availability capability in configurations with more than one I/O path between the host server and the ESS. Load balancing can eliminate I/O bottlenecks that occur when many I/O operations are directed to common devices via the same I/O path. SDD also eliminates a potential single point of failure by automatically rerouting I/O operations when a path failure occurs thereby providing enhanced data availability capability.
SDD is provided with the ESS at no additional charge. Both SCSI and Fibre Channel - SCSI-FCP attachment configurations are supported in the AIX HP-UX Windows NT Windows 2000 and Solaris environments. A complete and current list of operating systems and levels supported by the SDD is available on the Web at http //www.storage.ibm.com/hardsoft/products/ess/supserver.htm
SDD is mandatory on those platforms for which it is supported.
Note Some operating systems and file systems natively provide similar benefits for example z/OS OS/390 ptx and Veritas.
Backup and Disaster Recovery Advanced Function Copy Services
The ESS offers a rich set of copy services functions that in conjunction with databases and applications can deliver powerful solutions to meet e-business and Business Intelligence requirements.
Concurrent Copy available in the OS/390 environment and previously provided by the RAMAC Array Family allows a point-in-time copy to be made while the source data is fully available for access and update after initiation of the copy operation.
Extended Remote Copy - XRC also available in the OS/390 environment and previously provided by the RAMAC Array Family provides business continuance in case of disaster by maintaining a copy of the data at a remote location - which may be connected using telephone lines at great distance . The ESS implementation of XRC is enhanced with FULL SUSPEND/RESUME which enables the secondary - remote copy to be resynchronized following a planned or unplanned telecommunications outage without performing a time-consuming full-volume copy operation. Only data changed during the outage needs to be resynchronized between the copies a simple operation that greatly reduces resynchronization time restoring full disaster recovery protection more quickly than previously possible. XRC is an optionally priced feature - #1810 - #1815 .
Peer-to-Peer Remote Copy - PPRC is a hardware-based disaster recovery solution providing real-time mirroring of logical volumes within an ESS or to another ESS which can be located up to 103 km from the primary machine. PPRC is a synchronous copy solution where write operations are ensured on both copies - primary and secondary before they are considered to be done. PPRC is managed via a Web interface provided through the IBM StorWatch Enterprise Storage Server Specialist. PPRC is also supported by the ESS Command Line Interface - CLI in selected open systems environments by the ICKDSF utility on zSeries and S/390 platforms and by TSO commands in z/OS and OS/390.
PPRC is an optionally priced feature - #1820 - #1825 and requires the installation of ESCON Host Adapters - #3011 or #3012 to serve as the communications link between the primary and secondary ESS.
FlashCopy a new function introduced with the ESS provides an instant or point-in-time copy capability for logical volumes to minimize the downtime needed for data backup. FlashCopy creates a physical point-in-time copy of the data and makes it possible to access both the source and target copies immediately. By creating an instant copy FlashCopy enables applications using either the source or the target to operate with only a minimal interruption to perform the FlashCopy. FlashCopy is managed via a Web interface provided through the IBM StorWatch
Enterprise Storage Server Specialist. FlashCopy is also supported by the ESS Command Line Interface - CLI in selected open systems environments and can also be invoked using DFSMSdss under OS/390. FlashCopy is an optionally priced feature - #1830 - #1835
The ESS Command Line Interface - CLI enables open systems hosts to invoke and manage FlashCopy and PPRC functions through batch processes and scripts. The CLI provides commands to query the status of ESS volumes and to execute Copy Services tasks that were previously saved using the ESS Web Copy Services interface within the ESS Specialist. By integrating CLI commands into host scripts FlashCopy and PPRC functions can be integrated into new or existing host automation processes.
The CLI is supported on the AIX HP-UX ptx Solaris Windows NT and Windows 2000 operating systems. A complete and current list of supported operating systems is available on the Web at http //www.storage.ibm.com/hardsoft/products/ess/supserver.htm
Standard Configurations
The ESS provides a wide range of configurations scaling from 420 GB to 11.2 TB. There is a total of 16 new standard configurations. When these are added to the previous 16 standard configurations the ESS now provides 32 capacity configurations across 9.1 GB 18.2 GB and 36.4 GB disk drive technologies. These 32 configurations will enable greater choice for new orders and more granular scalability for upgrades.
Capacity Upgrades
The ESS provides a wide range of configurations scaling from 420 GB to 11.2 TB. Field-installed capacity upgrades are enabled for configurations of the same disk drive size - 9.1 GB 18.2 GB and 36.4 GB . This capacity upgrade between any configuration of like disk drives can be performed concurrently with normal I/O operations on the ESS.
Capacity upgrades are available within a drive family to any larger standard configuration for example specify number #9601 to #9602 #9621 to #9622 through #9635 and so on.
Investment Protection and Asset Flexibility
Your investment in the IBM 2105 Enterprise Storage Server and IBM 7133 Serial Disk is protected. The 7133 Model 020 and D40 drawers can be attached to the ESS to exploit rich functions such as centralized storage management FlashCopy and PPRC.
IBM 7133 Drawer Attachment to the Enterprise Storage Server
Attachment of IBM 7133 Model 020 and D40 drawers is provided through the attachment of the 2105 Model 100 expansion enclosure to the ESS. Feature number 1121 provides for the attachment of one 2105-100 to the ESS. The 2105-100 can support up to six customer-supplied 7133-020 or 7133-D40 drawers in this configuration.
Feature number 1122 provides for the attachment of a second 2105-100 to the ESS. The second 2105-100 can also support up to six customer supplied 7133-020 or 7133-D40 drawers for a total of twelve drawers in this configuration.
Feature numbers 1121 and 1122 must be ordered against the 2105-100 and apply to new orders only.
The ESS will not support attachment of the Versatile Storage Server 2105 Model B09. Consult your IBM sales representative or IBM Business Partner regarding options for the Model B09.
ESS Step Ahead Storage
Here s how the Enterprise Storage Server A Step Ahead works.
Purchase an ESS 2105 Model F20 with either 18.2 GB or 36.4 GB drives.
You order an ESS step ahead standard configuration and you are shipped the next larger standard configuration ESS.
You are billed for the standard configuration ordered plus a carrying fee for the step ahead storage.
You must sign a contract prior to purchasing an ESS Model F20 containing on-demand step ahead storage. In this contract you agree to purchase the step ahead storage when activated - configured for use or within one year of installing the step ahead storage.
The ESS call home function must remain enabled so that IBM can monitor usage of the step ahead storage.
When you purchase your existing step ahead storage you have two options. You can upgrade the ESS to a larger standard configuration with new step ahead storage and pay a new step ahead carrying fee or you can purchase only the existing step ahead storage and exit the step ahead storage offering.
Additional information is located at the following Web site http //www.ibm.com/storage/server/index.htm
Step Ahead Configurations
The ESS provides a wide range of step ahead configurations scaling from 420 GB - w/210 GB Step Ahead to 10 220 GB - w/980 GB Step Ahead . Field-installed capacity upgrades are enabled for configurations of the same disk drive size - 18.2 GB and 36.4 GB . This capacity upgrade between any configuration of like disk drives can be performed concurrently with normal I/O operations on the ESS.
Capacity upgrades within the step ahead storage offering are available within a drive family to any larger standard configuration. For example specify number #9521 to #9535 or #9546 to #9555.
Purchasing only the step ahead storage without a step ahead capacity upgrade will result in exiting the step ahead offering and reverting to a standard ESS configuration. For example upgrading step ahead standard configuration - feature #9521 to a non-step ahead standard configuration - feature #9622 results in removing feature #9521 and adding feature #9622 and also includes a feature conversion from step ahead 8-packs - feature #2132 - quantity 2 to standard 8-packs - feature #2122 - quantity 2 .
The advanced functions Peer-to-Peer Remote Copy - features #1820-1825 and FlashCopy - features #1830-1835 must be equal to or greater than the total - customer billed and step ahead capacity of the ESS. Parallel Access Volumes - features #1800-1805 and Extended Remote Copy - features #1810-1815 must be equal to or greater than the OS/390 portion of the total - customer billed and step ahead capacity of the ESS.
Product Positioning
The IBM Enterprise Storage Server is the storage device 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 IBM ESS is
The strategic enterprise disk storage solution for traditional RAMAC 3 Versatile Storage Server and RAMAC Virtual Array disk storage users.
The right choice if you require high-performance high-availability - 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 attachments.
The most appropriate choice if you require fast data duplication capability - FlashCopy and/or comprehensive remote copy and disaster recovery capability - PPRC and XRC .
The optimal solution if you desire comprehensive storage management from a single location. These advanced capabilities are provided by the IBM Enterprise Storage Server Specialist and the IBM Enterprise Storage Server Expert. [PDF SPEC SHEET]
