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IBM storage products
Hardware description
The Ultrastar 36XP is available in various models with the following options:
{
Capacity of 36GB
{
68 pin or 80 pin (SCA) connectors
{
68 pin SCSI connectors use the SCSI P connector which supports wide data transfers
{
80 pin SCSI connectors use the SCA-2 connector
Capacity
Model
36GB
DRHS-36V
36GB
DRHS-36V
These drives offer an advanced LVD interface that supports transfer rates of up to 80 MB/sec. To take
advantage of the higher transfer rate of 80 MB/sec, your computer will need to have a controller that
supports the LVD interface. If you have a SCSI controller that does not support this interface, the drive
will still function, but will be limited to data transfer speeds significantly lower than 80MB/sec due to the
lower speed of your controller. If you have a slower controller, you may wish to purchase an LVD
controller card to take advantage of Ultrastar's 80 MB/sec data transfer rate. An LVD controller card will
fit into any available slot in your computer.
If you currently have wide SCSI drives (single-ended) and a non-LVD controller, you may still attach the
LVD model Ultrastar 36XP to the existing cable. However, single-ended wide SCSI drives cannot be
added to the same bus as an LVD drive if that bus is connected to an LVD controller.
To determine if your current controller card is LVD, see the documentation that came with your controller
or contact the controller manufacturer for this information.
These drives are 3.5" drives designed to work in NT and Unix workstations and servers. They are ideal
for use by video producers and movie editors. The Ultrastar 36XP family is designed to work with MMX
systems. Compatibility listings are included in the appendix. Before you begin installation, please read
the "Hard disk drive handling guide" on the following page.
IBM Hard Disk Drive Technical Support Center
SCSI Pins/Connector Type
68 / Unitized Connector
80 SCA-2
Page 4
SCSI Electrical Signal Type
Low Voltage Differential (Ultra2)
Low Voltage Differential (Ultra2)
version 1.0
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