Seagate Barracuda 18LP ST318275LC, Product Manual

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Barracuda 18LP Product Manual, Rev. E 33
8.0 Installation
The first thing to do when installing a drive is to set the drive ID (select) on the SCSI bus and set up certain
operating options. This is usually done by installing small shorting jumpers on the pins of connectors J2 and J6
on the Printed Circuit Board Assembly (PCBA) (or J5 on the “LW” models), or via the drive to host I/O signals
on “LC” models. Some users connect cables to J6 or J5 and perform the set-up using remote switches.
If your system is “SCAM” (SCSI Configured Auto Magically) compliant, the system assigns the drive ID over the
interface, so there is no need to be concerned about drive ID. Setting the drive ID jumpers doesn’t hurt any-
thing, but is not necessary.
If your system is not “SCAM” compliant you do need to set the drive ID using the ID jumpers.
Configure drive options
For option jumper locations and definitions refer to Figures 7a, 7b, and 7c. Drive default mode parameters are
not normally needed for installation. Refer to Section 9.3.2 for default mode parameters if they are needed.
• Ensure that the SCSI ID of the drive is not the same as the host adapter. Most host adapters use SCSI ID 7.
ID 7 is the highest priority on both 8 and 16 bit data buses.
• If multiple devices are on the bus set the drive SCSI ID to one that is not presently used by other devices on
the bus.
• If the drive is the only device on the bus, attach it to the end of the SCSI bus cable. On “LC” and “LW” mod-
els, external terminators must be provided by the user, systems integrator or host equipment manufacturer.
• If the drive is attached to a bus that contains other devices, and if the new drive is not attached to the end of
the bus, no terminators are needed.
Note. For additional information about terminator requirements, refer to Sections 9.8 and 9.9.
• Set all appropriate option jumpers for desired operation prior to power on. If jumpers are changed after
power has been applied, recycle the drive power to make the new settings effective.
• Installation instructions are provided by host system documentation or with any additionally purchased drive
installation software. If necessary see Section 10 for Seagate support services telephone numbers.
• Do not remove the manufacturer’s installed labels from the drive and do not cover with additional labels, as
the manufacturer labels contain information required when servicing the product.
Formatting
• It is not necessary to low level format this drive. The drive is shipped from the factory low level formatted in
512 byte sectors.
• Reformat the drive if a different spare sector allocation scheme is selected.
• High level format the drive involves assigning one or more partitions or logical drives to the drive volume.
Follow the instructions in the system manuals for the system into which the drive is to be installed.
• Systems that have Windows 95 Operating System version 950B (this has FAT 32) or later do not need to
partition the drive in order to access the total capacity of the drive.
8.1 Drive ID/option select header
Figures 7a and 7b show views of the drive ID select jumper connectors. Figure 7c shows the option select
jumper connector for all models. Figure 7b shows a rear view of model drives for the purpose of showing J5 of
the drive. Both J5 and J6 have pins for selecting drive ID and for connecting the remote LED cable. Only one or
the other should be used, although using both at the same time would not damage the drive. The notes follow-
ing the figures describe the functions of the various jumper positions on the connectors J2, J5 and J6. See your
local sales representative for suggested part number. A bag with the two jumper plug types is shipped with the
standard OEM drives.