IBM DPSS-309170 Installation Manual - Page 5

IBM storage products Introduction This manual was prepared to aid you in the installation of your new IBM Ultrastar hard disk drive. This manual provides installation instructions for the following model numbers: Model DPSS-336950 DPSS-336950 DPSS-318350 DPSS-318350 DPSS-309170 DPSS-309170 Capacity 36.9 GB 36.9 GB 18.3 GB 18.3 GB 9.1 GB 9.1 GB Connector Type 68 pin 80 pin SCA 68 pin 80 pin SCA 68 pin 80 pin SCA DDYS-T36950 DDYS-T36950 DDYS-T18350 DDYS-T18350 DDYS-T09170 DDYS-T09170 36.7 GB 36.7 GB 18.3 GB 18.3 GB 9.1 GB 9.1 GB 68 pin 80 pin SCA 68 pin 80 pin SCA 68 pin 80 pin SCA Your IBM Ultrastar drive has an advanced Low Voltage Differential (LVD) interface that supports transfer rates of up to 160 MB/sec. Your drive will function at the maximum speed supported by your system components. To obtain the 160 MB/sec transfer rate, an LVD Ultra 160 controller must be used and single-ended drives cannot be placed on the same cable with LVD drives. If you have a SCSI controller that does not support this interface, the data transfer speeds of your system will be lower than 160 MB/sec due to the lower speed of the controller. Contact your controller manufacturer to determine if your current controller card will support the LVD Ultra 160 interface. Note: If you currently have single-ended SCSI drives and a non-LVD controller, LVD drives may be attached to the existing cable. If you choose to replace your non-LVD controller with an LVD controller, LVD drives can be attached to the same bus with single-ended drives. However, some LVD controllers do not support single-ended SCSI drives. Contact your controller manufacturer for more information. Both these configurations will only allow for data transfer speeds at the single-ended rate. IBM Technology Group Support Center Page 5 07N5612IG10