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C-8 Sun Fire V20z and Sun Fire V40z Servers—User Guide • March 2005
CHS Mapping Defines how the Cylinder Head Sector values
are mapped onto a disk without pre-existing
partition information. CHS Mapping includes
two settings:
SCSI Plug and Play Mapping (default value)
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.
Note: Neither of these options has any effect
after a disk has been partitioned using the
FDISK command. To change the CHS Mapping
on a partitioned disk, use the FDISK command
to delete all partitions. Then reboot the system
to clear memory or the old partitioning data
will be reused, thus nullifying the previous
operation.
CAUTION: Use care to ensure that the correct
disk is the target of an FDISK command.
Spinup Delay (Secs) Indicates the number of seconds to wait
between spinups of devices attached to an
adapter. Staggered spinups will balance the
total electrical-current load on the system
during boot. The default value is 2 seconds with
options between 1 and 10 seconds.
TABLE C-7 Adapter Properties (Continued)
Option Description