IBM DS8700, Введение и руководство по планированию

Страница: 28 / 256

datacenter environments. Coupled with this improved cooling
implementation, the reduced system footprint, and small form factor SAS-2
drives, a fully configured DS8800 consumes up to 36% less power than
previous generations of DS8000. For more information, see “ DS8800
(Models 951 and 95E)” on page 7.
IBM
™
technology
The DS8800 supports IBM processor technology to help support
high performance. It can be equipped with a 2-way processor complex or a
4-way processor complex for the highest performance requirements.
Processor complex technology has been upgraded from POWER6 to
.
8 Gbps host and 8 Gbps device adapters
The DS8800 model offers host adapters that have been upgraded to include
high-function PCIe-attached four and eight-port Fibre Channel and IBM
FICON host adapters. The DS8800 uses direct point-to-point high-speed
PCIe connections to the I/O enclosures to communicate with the device
and host adapters.
The DS8800 offers I/O enclosures that include up to 16 device adapters.
The device adapters have four 8 Gbps Fibre Channel arbitrated loop
(FC-AL) ports. The device adapters attach the storage enclosures to the
DS8800.
Disk drive support
The DS8800 supports the following choice of disk drives:
v
Serial attach SCSI (SAS) drives:
– 146 GB, 15K RPM
– 300 GB, 15K RPM
– 450 GB, 10K RPM
– 600 GB, 10K RPM
– 900 GB, 10K RPM
– 3 TB, 7.2K RPM
v SAS drives with Full Disk Encryption (FDE) and encryption Standby
CoD:
– 146 GB 15K RPM
– 300 GB 15K RPM
– 450 GB, 10K RPM
– 600 GB, 10K RPM
– 900 GB 10K RPM
– 3 TB 7.2K RPM
v Solid state drives (SSDs):
– 300 GB (nonencrypted)
– 400 GB (FDE and nonencrypted)
Business class cabling
The DS8800 business class cabling feature offers a more streamlined,
cost-competitive configuration than the standard configuration. The
business class cabling feature reconfigures the Model 951 by reducing the
number of installed device adapters and I/O enclosures, while increasing
the number of storage enclosures attached to the remaining device
adapters.
6
Introduction and Planning Guide