Overview; Features; Specifications - RAID Xanadu User Manual

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1. OVERVIEW

1.1

The features of this disk array unit are shown below.

High performance, large capacity

Fibre channel (FC-AL/Fabric, 400 MB/s) is employed in the host interface.

Disk drives employed are 73 GB (15,000 rpm), 147 GB (15,000 rpm), or 300 GB (15,000

rpm) SAS disk drives, and 500 GB (7200 rpm) or 750 GB (7200 rpm) SATA disk drives,

of which a maximum of 72 (Xanadu-beta version) drives or a maximum of 144 (Xanadu)

drives can be implemented.

SAS disk drives and SATA disk drives can be mixed in a disk enclosure.

Connection as a Windows, Linux, HP-UX, Solaris, or AIX server storage system is

possible.

Note: Xanadu-beta version supports only Windows and Linux servers (excluding the

Itanium Processor

Family).

High reliability, high availability

Controllers, caches, power supplies, fans, and other major components are made

redundant.

Note: In the Xanadu-beta version Single Controller model, the controller and cache

are not made redundant.

Caches are double-written between controllers so that even if one controller fails, data is

preserved in the cache of another controller.

Notes:

In the Xanadu-beta version Single Controller model, caches are not double-

written.

In the Xanadu-beta version Single Controller model, the initial value of

the write cache function is OFF.

Data in a cache is held a standard 24 hours by the battery.

By adding an optional extended battery backup unit, the backup time can be extended to a

maximum of 120 hours (Xanadu-beta version) or a maximum of 72 hours (Xanadu).

RAID-1, 5, 10, 50, and 6 are supported.

Even if one disk drive fails, continuous operation is possible and data is not lost.

Note: RAID-6 is supported for SATA disk drives.

Multiple hot spare disks can be established.

Operation management

Configuration, status display, and status monitoring can be performed easily using Storage

Manager.

Note: In order to use this disk array unit, you must purchase the program product

BaseProduct separately.

Storage Manager is included in BaseProduct.

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