User`s guide

8-7
Technical Specifications
I/O Module Configurations
The Adaptec SCSI Storage Enclosure supports the following
configurations:
■ Single I/O – Split Bus—An I/O module can be located in either
I/O module slot. This results in a two-bus backplane, with up to
six drives on each bus, with no expansion possible.
■ Single I/O – Joined Bus—An I/O module can be located in one
I/O module slot and a Joiner module located in the other slot.
This gives a single-bus backplane that supports up to twelve
drives.
Note: Daisy-chaining JBOD shelves together is not supported.
Note: Hot-swapping of the SCSI I/O and Joiner modules is not
supported.
Cable Lengths Supported
The external cable lengths supported for the Adaptec U320 Storage
Enclosure are 1, 2, and 5 meters in Ultra320 LVD and Ultra-2 LVD
SCSI bus modes. Single-ended SCSI is not supported.
SATA Storage Enclosure Technical Specifications
Currently Supported Disk Drives
Contact your Adaptec sales representative for up-to-date disk
drive information.
■ Support for a mix of capacities: 80, 120, 160, 200, and 250 GB.
■ Support for a rotational velocities of 5400, 7200, 10K, and 15K rpm.
■ The disk drives are direct connected to the midplane via an
MUX board.
■ The disk drives are connected to the midplane using the host
receptacle connector as defined in the Serial ATA specification.
■ Support for 1.0 inch, hot swap, and direct attach disk drives.