HP Vectra VL800, Техническое справочное руководство

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4 Interface Cards
SCSI Adapter Cards
CHS Mapping SCSI Plug and
Play Mapping
Defines the cylinder head sector (CHS) values that are mapped onto an un-partitioned disk.
SCSI Plug and Play Mapping automatically determines the most efficient and compatible mapping.
Alternate CHS Mapping utilizes an alternate, possibly less efficient mapping that may be required if a
device is moved between adapters from different vendors.
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on:::: Neither of these options has any effect after a disk has been partitioned using the FDISK
command. The FDISK utility is a tool that the user can use to delete partition entries, one or all of
them. If all partition entries are deleted, it is necessary to reboot to clear memory or the old
partitioning data will be reused, thus nullifying the previous operation. Use care to ensure that the
correct disk is the target of an FDISK command.
Spinup Delay (secs.) 2 Indicates the delay in seconds between spinups of devices attached to an adapter. Staggered spinups
balance the total electrical current load on the system during boot. The default value is 2 seconds.
Secondary Cluster
Server No Indicates whether an adapter has one or more devices attached that are shared with one or more
other adapters and therefore, the Symbios SCSI BIOS should avoid SCSI bus resets as much as
possible.
This option allows the user to enable an adapter to join a cluster of adapters without doing any SCSI
bus resets. This is a requirement for Microsoft Cluster Server. The default value is No with an
alternate option of Yes.
Termination Control Auto If available, the field indicates whether an adapter has automatic termination control.
Auto means that the adapter automatically determines whether it should enable or disable its
termination. Auto is the default state unless termination is done manually, in which case, the
configuration is Off.
MT/Sec 80 Indicates the maximum synchronous data transfer rate in megatransfers per second.
Data Width 16 Maximum data width in bits.
Scan ID Yes Indicates whether to scan for this SCSI identifier at boot time. Utilizing this setting allows you to
ignore a device. This decreases boot time by disabling inquiry of unused SCSI identifiers.
Set this option to No if there is a device that you do not want to be available to the system. Also, on
a bus with only a few devices attached, the user can speed up boot time by changing this setting to
No for all unused SCSI IDs.
Scan LUNs Yes Indicates whether to scan for LUNs greater than zero for a device. LUN 0 is always queried. This
option should be used if a multi-LUN device responds to unoccupied LUNs or if it is desired to reduce
the visibility of a multi-LUN device to LUN 0 only.
Set this option to No if you have problems with a device that responds to all LUNs whether they are
occupied or not. Also, if a SCSI device with multiple LUNs exists on your system but you do not want
all of those LUNs to be available to the system, then set this option to No. This will limit the scan to
LUN 0.
Field
Default
Settings
Description