5486ExtStor.fm Draft Document for Review October 18, 2004
428 IBM Eserver i5 and iSeries System Handbook
IBM TotalStorage DS8000
The TotalStorage DS8000 series is designed to provide
unmatched functionality, flexibility, and performance for
enterprise disk storage systems. It incorporates a high
bandwidth internal fabric designed to support fault
tolerance, highly expandable and flexible processor
memory, and fibre channel attached disks. It has a dual
processor complex implementation base on IBM
POWER5 technology that supports concurrent microcode
loads, transparent I/O failover and failback support, and
redundant, hot-swappable components for 24 x 7
business environments. The maximum host I/O
operations per second of a DS8300 is up to six times the
maximum of an ESS Model 800. The DS8000 series also
offer all new power and packaging which takes 20
percent less floor space than a base ESS Model 800.
The DS8000 series offers support for IBM's TotalStorage Resiliency Family
technologies. IBM's TotalStorage Resiliency Family includes FlashCopy, Global
Mirror, and Metro Mirror. The DS8000 supports RAID-5 and RAID-10 disk
protection. Both RAID-5 as well as RAID-10 protection are intermixable within a
single system. The DS8000 models come standard with the IBM TotalStorage
DS Storage Manager. The IBM TotalStorage DS Storage Manager is an all new,
easy to use, high-function GUI-based manager for performing and managing
logical configuration and copy services functions. A single command line
interface is also available which can help automate these functions.
The DS8000 is designed to support a broad range of operating environments
including IBM eServer zSeries, IBM Eserver i5 or iSeries, and pSeries servers,
as well as servers from Sun, Hp, and other Intel-based providers. SCSI
attachment is not supported on the DS8000. For IBM Eserver i5 or iSeries
attachment via 2Gbps Fibre Channel controllers is supported.
The IBM TotalStorage DS8000 Family is comprised of two series of models, the
DS8100 and DS8300. The model DS8300 is offered as non-partitionable (model
922) and partitionable (model 92A) configurations. These models are described
below.
Model DS8100
The DS8100 offers scalability of physical capacity from 1.1 to 115.2 TB. Fibre
channel disks are available in 73 GB, 146 GB, and 300 GB capacities and these
are intermixable within a single system. The DS8100 incorporates IBM's
POWER5 processor technology in a dual two-way processor-complex offering,
the Model 921
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