11 July 2021, 21:25 | #1 |
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PFS3 or FFS?
I'm gonna be setting up Amiga OS 3.2 on the MiSTer FPGA, but I haven't decided (yet) if I should use PFS3 or the default FFS. Does it matter, really?
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11 July 2021, 21:30 | #2 |
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PFS is faster, FFS has better recovery options.
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12 July 2021, 01:39 | #3 |
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From what I heard they fixed FFS in OS 3.1.4 or 3.2 but PFS3 is dead steady and fast. I never had a problem with it.
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18 January 2022, 13:44 | #4 |
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Sorry for bringing this thread up from the grave, but should I use PFS3 or PDS3?
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18 January 2022, 14:48 | #5 |
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18 January 2022, 15:01 | #6 |
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That's the one I'm using, but does the question is what DosType I should use. The one for PFS3 or PDS3?
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18 January 2022, 15:05 | #7 |
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18 January 2022, 15:13 | #8 |
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18 January 2022, 15:22 | #9 |
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I've been using SFS for more than 20 years on many of my Amiga and AROS OS and it never invalidated a Hardisk/HardFile, in my opinion SFS is the most stable filesystem not for nothing also used by OS4 and MOS.
PFS is the fastest but for me who loves speed it creates problems when I do fast reboots, where the last files copied or the last settings are not saved, to avoid this I always have to wait before a reboot and then check if everything went well, all this takes me away a lot of time with SFS I have the same speed and I don't have to wait anything before rebooting FFS created too many invalidations in the past so I don't use it anymore. --- Italiano --- Io uso SFS da più di 20 anni su tantissimi miei OS Amiga e AROS e non si è mai invalidato un Hardisk/HardFile, a mio avviso SFS è il filesystem più stabile non per niete utilizzato anche da OS4 e MOS. PFS e il più veloce ma per me che amo la velocità mi crea problemi quando faccio veloci riavii, dove gli ultimi file copiati o gli ultimi settaggi non vengono salvati, per evitare questo devo sempre attendere prima di un riavvio e poi verificare se tutto è andato a buon fine, tutto questo mi porta via tanto tempo con SFS ho la stessa velocià e non devo attendere nulla prima di riavviare FFS mi ha creato troppe invalidazioni in passato quindi non l'ho più utilizzato. Last edited by AMIGASYSTEM; 18 January 2022 at 15:33. |
18 January 2022, 15:59 | #10 |
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The choice is only relevant for harddrives larger than 4GB and then PDS3 is only needed for rare SCSI controllers which crash or hang on the attempt to use TD64 or NSD64. There are even controllers like the Phoenix board with pbscsi.device which destroy the harddrive on the attempt to use direct SCSI. So you should use PFS3 where possible and choose PDS3 only if required.
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18 January 2022, 18:34 | #11 | |
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Quote:
Both AROS and OS4 use modified and/or updated versions of SFS which aren't available on OS3.X. FFS certainly did its fair share of invalidations back in the OS3.1 days, but it's a lot stabler now. I use PFS3AIO and FFS (I started using it with 3.1.4+) and I have never faced the files not being saved issue. I always wait around 3-4 seconds from the last write as a good measure, but I do that on my other retro systems as well (like MS-DOS PCs), it's just a good practice to do to avoid issues. |
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18 January 2022, 18:50 | #12 | ||||
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Quote:
---- Italiano --- Può capitare ma è rarissimo, può essere che il tuo amico avesse un HD difettoso, come detto uso SFS da più di venti anni su decine di sistemi e mai avutto una corruzione. Quote:
---- Italiano ----- Non serve alcun montaggio, gli HD con il Filesystem SFS possono essere avviati da qualsuiasi Amiga normalmente, se vuoi ne discutiamo in Italiano altrove e ti spiego il perchè Quote:
---- Italiano ---- SFS OS3 è supportato da tutti i sistemi Amiga, uso i miei HardFile SFS su OS4, MOS e AROS. Quote:
---- Italiano ---- Prova a riavviare immediatamente dopo aver copiato un file o salvato un config e vedrai che al riavvio è come se non hai fatto nulla, certo se aspetti una decina di secondi non succede !!! Last edited by AMIGASYSTEM; 23 January 2022 at 22:04. |
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18 January 2022, 19:38 | #13 |
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Exactly. No matter how rare it is, it can happen and when it happens all is lost. There is not a single working recovery program for SFS. If you don't have a backup, bad luck.
I rather prefer a file system which might not be rock stable, but I can get my data back if something happens. And against the issue with PFS3 that data is not written immediately, you can use http://aminet.net/package/disk/salv/DiskSafe |
18 January 2022, 19:54 | #14 | |
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I'd happily add it to my systems if I know it's been battle tested. |
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18 January 2022, 20:43 | #15 |
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18 January 2022, 21:16 | #16 |
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18 January 2022, 21:20 | #17 | |
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For this reason, in the past on my 4000/060 it happened that some big files were not finished "incomplete" without having any message from the system. Regarding the possible invalidation for my habit I always make a weekly backup, but as said at the moment with SFS nothing has ever happened to me. |
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18 January 2022, 21:28 | #18 |
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Thanks for pointing to Disksafe, never had problem with PFS3AIO but better safe than sorry
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18 January 2022, 21:54 | #19 |
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19 January 2022, 10:54 | #20 |
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That's exactly what DiskSafe is for: it installs a reset handler and when you press Ctrl-A-A it first writes all changes to disk before it actually resets the computer.
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