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- @BEGIN_FILE_ID.DIZ
- Anleitung zum Installieren von AFS
- (sehr empfehlenswert!)
- @END_FILE_ID.DIZ
- AFS - Installation
-
-
- Using the Ami-FileSafe on your harddisk
- =======================================
-
- Features of Ami-FileSafe
- ------------------------
-
-
- - AFS has much faster disk access than FFS.
-
- - AFS will store (On average) more data than FFS on the same disk.
-
- - AFS gives vastly improved directory scanning.
-
- - AFS is SAFE - If you crash your machine whilst writing Ami-FileSafe
- partitions will not (unlike OFS & FFS) become invalidated
- or corrupt.
-
-
- Preparing installation
- ----------------------
-
- Select or make a suitable partition. All the data in the selected
- partition will be destroyed when installing Ami-FileSafe, so make sure you
- make a backup. Ami-FileSafe must be installed in the l: directory. You
- can do this by double clicking on the Install or Install020 (For 68020+
- machines) icon.
-
-
- Installing Ami-FileSafe on the partition
- ----------------------------------------
-
-
- Now you can install Ami-FileSafe on the RidgidDiskBlock. You can use
- Commodore's HDToolbox, which is supplied with the Workbench software, for
- this purpose. With the same tool you can install AFS on a partition. We
- assume here that you will use HDToolbox. If you use another tool you
- should refer to its documentation.
-
- Select 'advanced options' in the the partitioning window. A number of
- extra buttons appear. Click on 'add/update...' and then click 'Add New
- File System...'. Type in 'L:Ami-FileSafe' for the name of the file system.
-
- Set the dostype field to '0x41465301' and then select ok. Go back to
- the partitioning window, select the desired partition and select the
- 'change...' button. Select the just added Ami-FileSafe (AFS\1). Use all
- the default options: automount on, block size 512, 2 reservered blocks.
-
- If you are using an older version of HDToolBox and the is not a
- 'change' button then click on 'Custom File System' and then type
- '0x41465301' into the dostype field.
-
- Change the 'buffers' field to a value between 50-200 depending on how
- much memory you have free (1 Buffer = 1K).
-
- Now select ok and the partioning menu will appear again. Fill in the
- name you want the device to have in the 'Partition Device Name' field, e.g.
- 'DH1'. If you want to boot from the disk you have to set the the bootable
- flag. Go back to the main screen and save the changes.
-
- Ami-FileSafe should be installed on the partition now. Reboot and
- format the partition from workbench. If you have done something wrong then
- go back and start again.
-
-
- Differences with FFS/OFS
- ------------------------
-
- When you use the c:list command the 'blocks used' information will be
- too high. The list command assumes every file consumes a block of free
- space to use as headerblock. AFS uses blocks much more efficiently.
- Usually the real number of blocks used is the given amount minus the number
- of files listed. You can check this with the "info" command, which will
- report the correct amount.
-
- Directory tools like Directory Opus have the same problem with their
- spaceleft figure during a copy session. You'll notice that after copying
- is finished the figure will go up to the correct figure.
-
-
- This means that an AFS disk stores more data than an FFS disk.
- Ami-FileSafe uses a larger proportion of blocks for data storage.
-
- There is a feature of AFS which tells programs asking the filesystem
- information about a Ami-FileSafe disk that it is an FFS disk. This is done
- to prevent those programs from saying it's not a dos disk without giving
- the information requested to the user (e.g. the "info" command).
-
-
- AmigaDos compatibility
- ----------------------
-
-
- All Amiga-Dos features are implemented and you shouldn't have any
- problems with OS-Legal programs. Some programs such as games and disk
- utilities which are not OS-legal will not work with Ami-FileSafe.
-
- N.B. If you use Directory Opus then we suggest you disable the progress
- indicator to speed up file operations.
-
-
- Benchmarks
- ----------
-
- Test FFS AFS Units
-
- DirScan 409 1780 Files/Second
- Create 227 1073 K/Second
- Read 244 1363 K/Second
-
- The DirScan, Create and Read tests were done with DiskSpeed V4.2
-
- SeekTest (x100) 53.6 4.4 Seconds
-
- SeekTest was done using a custom program (Source code available on request).
- It performs the following sequence:
-
- Seek Start of file
- Write 4 Bytes
- Seek to End of file
- Write 4 Bytes
- Repeat
-
- Reviews
- -------
-
- A review of Ami-FileSafe is available from Aminet and
- comp.sys.amiga.reviews. If you would like this review send to you then
- please ask.
-