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- 18
- +++General
-
- Open any copy of AHDI.PRG or SHDRIVER.SYS and then edit the patchable
- variables described below. (Variables that aren't available for a
- given driver version will be disabled). When you are finished editing
- you can save the modified driver either under its original name (Save)
- or under a new name (Save As). When saving under the original name
- you can auto- matically have a backup of the original created by
- selecting the 'Backup' item in the Options menu.
-
-
- +++Version Number
-
- This is the version number of the driver that was opened. Only
- versions 3.00 and above may be opened. The version number is not
- editable and is displayed only for your information
-
-
- +++OS Pool Size
-
- This is the number of blocks to add to the OS Pool. This value is
- only used when the ROM version on your system requires that OS Pool be
- added.
-
-
- +++Sector Size
-
- The driver will use the bigger of this number and the largest logical
- sector it can find on all logical drives at boot time, to be the size
- of the buffers that GEMDOS will use. This is useful when you are
- using a removable media drive (e.g. MEGAFILE 44) and need to use a
- cartridge fomatted with a larger sector size than the one you
- initially booted with. As long as this number is greater than the new
- cartridge's sector size, you can swap media without needing to reboot
- your system. (The sector size must be a multiple of 512 bytes).
-
-
- +++Idle Time
-
- This value is the time in hours, minutes & seconds before your hard
- drive will spin down to conserve power. It is only applicable to
- driver versions 3.02 (Stacy) and 5.00 and above (for IDE drives like
- those in the ST Book). The number here should be a multiple of 5
- seconds. Note: Holding the shift key while scrolling causes the idle
- time to scroll by minutes instead of in 5 second increments.
-
-
- +++Scan Units
-
- For each type of physical drive (ACSI, SCSI or IDE) you can decide
- whether or not to scan for physical unit numbers. For ACSI and IDE
- drives you can either select 'All' to scan units 0 to 7 or 'Custom',
- which brings up a dialog letting you select unit numbers individually.
- Only unit 0 is supported for IDE drives. If you select to scan for
- units for one drive type, then scanning will also be performed for the
- other drive types (but only for the units specified for those drive
- types). If you choose not to scan for any of the drive types then all
- connected drives of a given type must have consecutive physical unit
- numbers and the driver will only look as far as the first
- non-responding physical unit number.
-
-
- +++Removable Media Drive Letters
-
- These two columns let you set the number of drive letters that will be
- reserved for each physical unit, if that unit is a removable hard
- drive. This is useful if you will be swapping cartridges on a
- removable media drive, and the cartridges are partitioned differently.
- At boot time, the driver will use this number, or the number of
- logical drives on a removable unit, whichever is bigger, and assign
- that number of drive letters to that particular unit. As long as
- every cartridge you put into that unit during a given session has no
- more than this number of partitions, you will always be able to access
- all of the partitions without re-booting your system. Remember,
- however, that you only have 14 drive letters to split between all
- fixed and removable drives.
-