Adaptec FS4500 User Guide - Page 74

Acoustics, Product Orientation, Ultra320 SCSI Storage Enclosure Technical Specifications, Disk Drives

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Technical Specifications Acoustics Acoustic level shall not exceed a weighted sound power of 6.5 Bels at normal operation tested to ISO7779. Normal operation is defined as ambient temperature of 23 ° C, 60 I/O/sec/drive, all fans operational, and no fault conditions. The acoustic sound level will increase under fault conditions. Product Orientation The product can be used in the horizontal or vertical (tower) orientation. Ultra320 SCSI Storage Enclosure Technical Specifications Disk Drives ■ Support for a mix of drives, capacities, and spindle speed (10 K and 15 K rpm). ■ Support for 1.0 inch, hot swap, and direct attach U160 or U320 disk drives. ■ The disk drives are direct connected to the midplane via 80-pin SCA-2 connectors. SCSI Bus The Adaptec U320 SCSI Storage Enclosure features an LVD SCSI interface supporting Ultra320 (320 MB/sec synchronous transfer rate), Ultra160 (160 MB/sec synchronous transfer rate), and Ultra-2 SCSI (80 MB/sec synchronous transfer rate). The Adaptec SCSI bus is not intended to support single-ended drives. SCSI Midplane The Adaptec SCSI Storage Enclosure backplanes contain no active components, apart from terminators, and support hot plugging of disk drives, power supplies, and fans. The backplanes support the full 320 MB/sec bandwidth for each configured bus. The Ultra320 SCSI split bus mode supports the full 320 MB/sec bandwidth for each bus, giving a total aggregate bandwidth of 640 MB/sec. 8-5

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8-5
Technical Specifications
Acoustics
Acoustic level shall not exceed a weighted sound power of 6.5 Bels
at normal operation tested to ISO7779. Normal operation is defined
as ambient temperature of 23
°
C, 60 I/O/sec/drive, all fans
operational, and no fault conditions. The acoustic sound level will
increase under fault conditions.
Product Orientation
The product can be used in the horizontal or vertical (tower)
orientation.
Ultra320 SCSI Storage Enclosure Technical
Specifications
Disk Drives
■
Support for a mix of drives, capacities, and spindle speed (10 K
and 15 K rpm).
■
Support for 1.0 inch, hot swap, and direct attach U160 or U320
disk drives.
■
The disk drives are direct connected to the midplane via 80-pin
SCA-2 connectors.
SCSI Bus
The Adaptec U320 SCSI Storage Enclosure features an LVD SCSI
interface supporting Ultra320 (320 MB/sec synchronous transfer
rate), Ultra160 (160 MB/sec synchronous transfer rate), and Ultra-2
SCSI (80 MB/sec synchronous transfer rate). The Adaptec SCSI bus
is not intended to support single-ended drives.
SCSI Midplane
The Adaptec SCSI Storage Enclosure backplanes contain no active
components, apart from terminators, and support hot plugging of
disk drives, power supplies, and fans. The backplanes support the
full 320 MB/sec bandwidth for each configured bus. The Ultra320
SCSI split bus mode supports the full 320 MB/sec bandwidth for
each bus, giving a total aggregate bandwidth of 640 MB/sec.