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Configuring the AAA-13xSA RAID Card with SCSISelect
SCSI
Select
Settings
SCSI Bus Interface Definitions
The following settings are the SCSISelect settings most likely to
require any modification:
■
Array Adapter SCSI ID
— This option sets the RAID card’s
SCSI ID. The default setting is SCSI ID 7, which gives the card
the highest priority on the SCSI bus. We recommend that you
leave the AAA-13xSA RAID card set to SCSI ID 7.
■
SCSI Parity Checking
—This option determines whether the
AAA-13xSA RAID card verifies the accuracy of data transfer
on the SCSI bus. The default setting is Enabled. You should dis-
able SCSI Parity Checking on the card and all SCSI devices if
any SCSI device connected to the card does not support SCSI
parity; otherwise, leave it enabled. Most SCSI devices do sup-
port SCSI parity. If you are not sure whether a device supports
SCSI parity, consult the documentation for the device.
■
Host Adapter SCSI Termination
—This option sets termina-
tion on the AAA-13xSA RAID card. The default setting is Auto
Mode. This means the card will detect whether internal or
external SCSI devices are connected to it and whether they are
Wide or Narrow SCSI devices. The adapter will then adjust its
termination accordingly. Under normal operation, you should
never need to change this setting.
■
Host Adapter UltraSCSI
—This option determines whether the
adapter supports Ultra SCSI devices. The default setting is Dis-
abled. If you have any installed Ultra SCSI devices installed,
you should enable this setting. When this setting is enabled,
the card negotiates for data transfer speeds of up to 20
MBytes/sec. (or 40 MBytes/sec. for Wide SCSI devices).
Note:
If you use Ultra SCSI data transfer speeds, be
sure to use high-quality cables to connect the disk
drives to the adapter. The quality of the cable is much
more critical when you use higher-speed data transfer.
See Additional Hints for Connecting SCSI Peripherals on
page 2-8 for information on cabling SCSI peripherals.