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1996-02-26
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<<< WELCOME TO AFS >>>
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.
Restrictions and requirements
=============================
The demonstration version of Ami-FileSafe will not handle partitions of
more than 10MB. It can be installed and automouted in the RidgidBootBlock.
Standard mountlists are also supported. Autobooting is supported. Memory
usage depends on the number of buffers selected.
The full version of Ami-FileSafe is available from Fourth Level
Developments (See the end of this file for details).
Warning to Hackers
==================
This version of AFS does not contain the code to handle large partitions.
If you try to remove the 10MB limit AFS will seem to work but the partition
will become unstable and you _will_ lose your data. Do not risk it, if you
want to use AFS then buy the full version.
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:HardDiskAFS' 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).
If you are using an IDE drive then set the maxtransfer value to 0x1ffff
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.
If HDToolBox reports that there is not enough space in the RDB then you
can either:
a) Get a program called RDBPrep (aminet: disk/misc/rdp391.lha) and use
that instead.
b) Install Ami-FileSafe using mountlists (See the AmigaDos manual for
details).
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.
Un-delete
=========
AFS now includes an un-delete feature. Located off the root is a
subdirectory called ".deldir". It stores the last 31 deleted files. To
list the currently valid deleted files (from cli) type:
list :.deldir
You will notice the filenames have a number called a "slot number" appended
after them to prevent duplicate file names.
To undelete a file simply copy it from the .deldir onto another drive e.g:-
copy :.deldir/NewsBatch@022 ram:
Will un-delete the NewBatch@022 file and store it in ram disk.
N.B. While it is possible to un-delete files onto the same volume, if you
do this you may overwrite the file you are trying to un-delete.
Misc Notes
==========
- Do not try to use Gigamem/VMM swap _files_ on an AFS partition.
- If you are using a cache program disable write cache for any AFS
partitions.
- If you are having problems with AFS please email:
afssupport@flevel.demon.co.uk
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 4 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 sent to you then
please ask.
Ami-FileSafe V2.1 Pro - Basic Features
======================================
AFS V2.1 Pro includes:
Notification
Hard and soft links
Support for large disk drives (Upto 4GB)
Auto-Booting
Add Buffers
Sophisticated Cache Routines
Max transfer and DMA masking
Very Large Directory Support
Setowner
A New FreeBlock Management System
International Support
MultiUser FileSystem Support
On the fly AFS to FFS conversion.
Hundreds of minor fixes and improvements have been made which amount to a
major rewrite of the filing system.
Ami-FileSafe V2.1 User
======================
Ami-FileSafe User is a budget version of AFS and has the follow limitations:-
- It may only be used on one hard drive of upto 650MB.
- It does not include the MultiUser FileSystem version of AFS.
It does however include the FFS to AFS converter.
Support
=======
A new mailing list has been setup for AFS users. If you want to join then
send an email to:
emailurl@flevel.demon.co.uk
With the following lines in the body of the message:
subscribe afs me@my.domain
end
^^^^^^^^^^^
Replace me@my.domain with your email address.
Contacts
========
Fourth Level
------------
Tel: 0117 985 4455 (6 Lines)
Fax: 0117 955 9157
Email: support@flevel.demon.co.uk
Mail: Fourth Level Developments
31, Ashley Hill
Montpelier
Bristol
BS6 5JA
Distributors
============
Germany:
Stefan Ossowski's Schatztruhe
Veronikastr. 33
45 131 Essen
Germany
Tel: +49 201 788 788
Fax: +49 201 798 447
Sweden:
Orebro Videireklam
Stottsgatan 12
703 91 Orebro
Sweden
Tel/Fax: +46 19 123 807
South Africa:
ML Systems
86 Queen Wilhelmina Avenue
Bailys
Muckleneuk
Pretoria
South Africa
Tel: +27 12 346 1160
Fax: +27 12 346 1334
Italy:
DB Line
V.le Rimembranze 26/c
21024 Biandronno VA
Italy
Tel: +39 332 767270
Fax: +39 332 768066
Belgium:
JPC
Schietboomstraat 7-9
B-3600 Genk
Belgium
BE 638 535 261
Tel: +32 89354 123
Spain:
Info Technologies S.L.
C/San Augustin
15 Nivel 2
Despacho 2
08750 Molina de Rei
Bracelona
Tel: +34 3 680 0434
Fax: +34 3 680 0812
Finland:
BroadLine Oy
Vanha Porvoontic 295
Vantaa
Finland
Tel: +358 0 874 7900
Fax: +358 0 874 4944
Denmark:
Betafon APS
Glydenlovesgade 2
1369 Copenhagen
Denmark
+45 33 14 1233
+45 33 14 1276
USA:
Intangible Assets Manufacturing
828 Ormond Avenue
Drexel Hill
PA 19026-2604
USA
Tel: +1 610 853 4406
Fax: +1 610 853 3733
----------------------------------------------------------------------------
Ami-File Safe Order Form
========================
Please rush me ____ copies of Ami-FileSafe V2.2
[ ] I wish to buy Ami-FileSafe Pro at the full price of 69.75UKP
[ ] I wish to buy Ami-FileSafe Pro at the PFS registered users price of 35.00UKP
[ ] I wish to buy Ami-FileSafe User at the full price of 29.95UKP
[ ] I am a student (Subtract 20% student discount for PRO version _only_).
All prices include VAT. If you are outside the EEC you may deduct 17.5%
Amount £______ (Please add 3.50UKP for P&P).
Name _________________________________________
Address _____________________________________________________________
_____________________________________________________________
Tel ________________
Fax ________________
Email ________________
[ ] I enclose a cheque for the full amount.
Cheques should be made payable to Fourth Level Developments and can
be made out in DM, US Dollars or UKP.
[ ] I enclose a EuroCheque for the full amount (Made out in UKP).
[ ] I enclose UKP (in cash) for the full amount.
[ ] I wish to pay by my Access/Visa credit card:
Number _____________________________ Expiry Date ________________
Name _____________________________
[ ] I enclose evidence of my STUDENT status.
Signed ________________________
****************************************************************************
Conditions for student discount:
1. Some evidence of your student status must be submitted with
your order form. A copy of your student union card is usual.
2. If you decide to sell your copy of Ami-FileSafe to someone who is
not a student they must pay the difference between the student
price and the full commercial price. You must advise us of this.
3. The student copy may not be used for commercial purposes or for
any purpose other than the private use of the purchaser.
****************************************************************************
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