Chapter 1: Introduction
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The two standard LVD SCSI interface provides compatibility with any system that
uses a SCSI interface. No vendor unique commands are required for the
operation of the VTrak subsystem.
Architectural Description The VTrak 15110 is a Direct Attached Storage (DAS) subsystem that can also
function in a Storage Area Network (SAN). It consists of 15 disk drive bays, a 3U
enclosure with mid-plane, RAID controller, power and cooling units, and
enclosure processor all in one cable-less chassis design. Multiple fans and
power supplies provide redundancy to ensure continued usage during
component failure. The RAID controller is hardware based and controls all logical
drive functions transparently to the host system. VTrak appears to the computer’s
operating system as a standard SCSI drive or drives.
Features and Benefits
Feature Benefit
3U 19-inch wide enclosure Installs easily in any standard rackmount.
Supports RAID levels 0, 1, 3, 5, 10
and 50
Allows system to be tuned for maximum
performance.
Supports online logical drive
(array) expansion
Lets you add disk drives to an existing
logical drive without interrupting data
accessibility
Supports online RAID migration Allows you to convert a logical drive from
one RAID level to another without
interrupting data accessibility
Supports Parallel ATA drives (with
a Promise adapter card)
Allows you to use existing ATA disk drives.
Supports logical drive migration
from other Promise RAID products
Allow you to seamlessly move your existing
logical drives to VTrak without recreating
them.
S.M.A.R.T. monitoring Warns of disk drive degradation and
potential failure.
Dual-channel standard SCSI-3
(Ultra 160) drive to host
Compatible with all SCSI-3 or SCSI-2/LVD
host adapters. No special OS drivers used.
Up to 20K IOPS (over two iSCSI
ports)
High processing rate.