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-
- WHY PARTITION YOUR DRIVE ?
-
- In order be useable, each hard disk must have at least one partition. A
- partition is described in terms of CYLINDERS. If you only have ONE
- partition on your drive, then that partition will consist of ALL the
- useable cylinders on that drive. Theoretically you could divide a drive
- into as many partitions as you have cylinders. Practically speaking
- however, you will usually want to divide your drive into no more than a
- few partitions.
-
- If your drive is 30 megabytes or under in size, you may wish to set the
- drive up as one big partition. With bigger drives, however, you'll find
- it convenient to set up two or more partitions. By dividing your drive
- into partitions, you will improve your file access time and directory
- read speeds. It will also be useful from a organizational point of view
- and make your disk easier to back up.
-
- PARTITION NAMES:
-
- Partitions can be named almost anything. The conventional names are
- DH0:, DH1:, DH2:, etc. for each partition. These names are the LOGICAL
- DEVICE NAMES. You could just as well use TOM, DICK, and HARRY. Don't
- type in the colon in RDPrep; the software will do that for you. Each
- partition is treated by AmigaDOS as if it were a separate hard disk even
- though all the partitions may be on only one physical hard disk.
-
- CREATING A NEW PARTITION:
-
- The long horizontal rectangle at the top of Screen 2 represents the total
- partitionable space of your hard disk. Displayed directly over this
- rectangle is the unit number and manufacturer's name of the drive that
- this partition diagram represents. The single digit number in each
- partition of this rectangle is an arbitrary identifier used only while
- working from within RDPrep. If you are creating only one partition, all
- you need do is NAME the partition (type in the logical device name in the
- black edit-space under the scrollable partition list and press RETURN)
- unless you wish to use the default name that RDPrep gives the partition.
- To create a second partition, click on the ADD PARTITION button. A bar
- will appear, dividing the previous partition in half. Click and drag on
- the bar with the mouse pointer to resize the partition. You may also
- edit the size of the partition by typing in the number of cylinders
- directly. The partition list will translate cylinders into megabytes for
- you in the SIZE column of the list. Note that the number of kilobytes
- represented by a single cylinder will vary from drive to drive.
-
- As you move the partition divider back and forth, note that if you veer
- off the partition rectangle, the partition bar "snaps back" to its
- previous setting -- this acts as a cancel or undo operation if you decide
- you don't like the parameters you set up. Also, if you want to move the
- partition divider in one-cylinder jumps, just use the mouse to select the
- partition you want to "shrink" and click repeatedly in the partition --
- you'll see the divider nearest the pointer move towards it in one
- cylinder decrements.
-
- Once you have two or more partitions set up, just clicking on the
- partition space will illuminate it in orange and make that partition the
- current partition for editing. To delete a partition, just click on the
- DEL PARTITION button, and the currently selected partition will merge
- with the partition to its left.
-
- DESIGNATING YOUR BOOT PARTITION:
-
- One of your partitions on one of your hard disks should be your BOOT
- partition. You determine this by how you've set the BOOTPRI (Boot
- Priority) parameter in Screen 2 for that partition. Basically, designate
- your boot partition as having a BOOTPRI of 3 or 4 and give all other
- partitions a BOOTPRI of 0. Stay within the range -127 through 4 for all
- partitions.
-
- REMEMBER:
-
- After you've set up your partition information in RDPrep, you must go to
- Screen 1 and write that information into the Rigid Disk Block area of the
- currently selected disk (you should also back up that information into a
- MountFile on a floppy disk before exiting RDPrep).
-
-