Chs mapping, Note, Important – LSI SYM22801 User Manual

Page 51: Spinup delay (seconds)

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Starting the SCSI BIOS Configuration Utility

3-9

With Media Installed provides removable media support wherever the
drive(s) actually resides.

One of these choices can be selected by highlighting it and pressing
Enter.

CHS Mapping – This option defines the cylinder head sector (CHS)
values that will be mapped onto a disk without pre-existing partition
information. SCSI Plug and Play Mapping is the default value.

To support interchange with non-compatible systems, there is another
option that can be selected by choosing CHS Mapping and then
cursoring to “Alternate CHS Mapping”.

Note:

Neither of these options will have any effect after the disk
has been partitioned with the FDISK command.

To remove partitioning, two options are available:

Reformat the disk using the Format Device option. See the “Device
Selections Menu” section below for further details regarding this
option.

Use the FDISK /MBR command at the C:\ prompt, where MBR
represents master boot record.

Important:

Reformatting the disk or using FDISK /MBR erases all
partitioning and data that exists. Be careful that you target
the correct disk when using either the Format utility or the
FDISK /MBR command.

After clearing the partitions and data, it is necessary to
reboot and clear memory or the old partitioning data will be
reused, thus nullifying the previous operation.

Spinup Delay (seconds) – This option allows the user to stagger spin
ups for a longer period of time to balance the total current load. The
default value is 2 seconds with choices between 1 and 10 seconds.

This is a power management device designed to accommodate disk
devices that may have heavy current load during power up. If multiple
drives are being powered up simultaneously and drawing heavy current
loads, then this option staggers the spin ups to limit start-up current.

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