PFS3 - HDD settings

[mardn78]

Hi,

i want to install a fresh OS3.9 installation and this time with PFS3.
I have a A1200 with Blizzard 1230 IV, the SCSI-Kit and 80 GB FastRAM.

The installation will be on a clean 36GB SCSI drive which is connected to the SCSI-Kit.

What settings related to PFS3 are suggested?
(maxtransfer, buffers, pfs3 Version (direct-SCSI?) etc.)

regards,
Mardn

[thomas]

PFS3 comes with detailed German documentation. It describes it better than anyone here could.

http://aminet.net/package/disk/misc/PFS3_53

[mardn78]

Hi Thomas,

thanks for the hint. I have read the pfs3.guide but some questions remain:

- does Blizzard SCSI kit Support TD64? (in the Blizzard Manual there is no word of it)
- maxtransfer: in the guide there is the entry: "most scsi devices can handle a maxtransfer of 0xfffe00 (16 MB). " Means this i should use this value for my drive which is connected to the scsi kit or do i have to calculate the value depending on the specific drive?
- Mask: is there a suggested value? in the pfs3.guide there are some values for Zorro boards and Amiga internal IDE Controllers.

[thomas]

Originally Posted by mardn78

- does Blizzard SCSI kit Support TD64? (in the Blizzard Manual there is no word of it)

AFAIK all Phase5 SCSI controllers support TD64.

- maxtransfer: in the guide there is the entry: "most scsi devices can handle a maxtransfer of 0xfffe00 (16 MB). " Means this i should use this value for my drive which is connected to the scsi kit or do i have to calculate the value depending on the specific drive?

I am not aware that Phase5 SCSI controllers have problems with MaxTransfer, so I would suppose there is no limit.

- Mask: is there a suggested value? in the pfs3.guide there are some values for Zorro boards and Amiga internal IDE Controllers.

AFAIK Phase5 SCSI controllers can do DMA only into the memory on the accelerator, therefore Mask should be selected so that it includes the board's memory. I would use 0xfffffffc.

[Toni Wilen]

I don't think any Amiga SCSI DMA controller requires LONG word alignment (not including original A590/A2091 DMAC chip revision), 0xfffffffe should be fine.

[daxb]

- maxtransfer: in the guide there is the entry: "most scsi devices can handle a maxtransfer of 0xfffe00 (16 MB). " Means this i should use this value for my drive which is connected to the scsi kit or do i have to calculate the value depending on the specific drive?

If you aren`t sure you can test MaxTransfer be copy a large file and check if source/target are byte equal. Thomas has also written a tool (MaxTransTest) that does that test.

[mardn78]

thanks, i will test the values