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Author Topic: PFS Vs SFS Which is better.  (Read 4133 times)

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Offline SHADESTopic starter

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PFS Vs SFS Which is better.
« on: October 14, 2003, 12:52:51 AM »
Looking into docs for PFS I no longer understand why any AMIGA user would not want to use this file system.
Ok, that's not fair, use whatever you want to.

But PFS supports over the 4 gig barrier etc and won't corrupt files even in the middle of writing ie it doesn't update the witten to pointer until the file has been completly written to the drive then points to it so, no lost data. this even kicks NTFS, or LINUX  in the head. Linux still need validation on crashes.

Anyway, I would like to know if anyone has thoughts as to SFS as i haven't tried this filesystem yet and I know it may be hard to get PFS now. Is SFS better than PFS?

Still, PFS,  what a great filesystem :)
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Offline shIva

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Re: PFS Vs SFS Which is better.
« Reply #1 on: October 14, 2003, 01:09:53 AM »
can´t say what´s better ... i use SFS and my miggy works fine with this :-D
afaik these filesystems are very similar (technically), therefor both imho both are ok.
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Offline lempkee

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Re: PFS Vs SFS Which is better.
« Reply #2 on: October 14, 2003, 01:14:55 AM »
here is a clue , i moved away from pfs1,2,3 (latest i used 3 for about 3 years.)  to sfs ,
i havent had any problem so far but speed is slower on sfs compared to pfs3 BUT! i changed due to pfs has a tendency to crash! and when it does... it crash so hard that you have to reinstall yer whole partition ;(

there aint any "working" repair tools for pfs , they claim they do...but they only postphone em till later so it can crash you BAAAAAAAAAAAAAD!

i tried the tools on sfs , they work ..but if they will rescue all data in a big crash....i guess time will tell.

nothing really beats FFS but sadly its WAY too slow and the validation quirks are way too annoying (validation error....bleh) and well ofcourse the gb barrier's :D

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Offline SHADESTopic starter

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Re: PFS Vs SFS Which is better.
« Reply #3 on: October 14, 2003, 01:26:12 AM »
That's so weird. I have run PFS2 since it came out and migrated to 3 . I run both versions ie the ds version (direct SCSI) and the normal for IDE drives and both CPU options ie 68020 and 68040 and I have never had a problem. the only thing I have ever had to do was correctly size up my "rollover file" I run a 1200 and 4k :)

I have also used the PFS recovery tools when incorectly deleting files.

The only time I have heard of PFS crashing is under 3.0 when the mask and max transfer values were set incorrectly. But the values for these settings are in the docs.

Really strange. Must be going on 10 years for using the filesystem. Not bad odds for me and no invlaid disk in that time period.

Anyway, I just wanted to know if this SFS has any improvement over PFS as there's not a lot of info in the SFS docs.
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Offline Stew

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Re: PFS Vs SFS Which is better.
« Reply #4 on: October 14, 2003, 03:49:48 AM »
I have never used SFS but do use PFS3. Never had a problem with it except when using a GVP  060 TRex.
The drive will not show up with the GVP controller. All othe controllers I have used with it works great. I have never had a crash with PFS3 but your milage may vary  :-D

Stew
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Offline Damion

Re: PFS Vs SFS Which is better.
« Reply #5 on: October 14, 2003, 04:09:41 AM »
PFS 3 is killer, it was one of my best software
purchases ever.
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Offline Paul

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Re: PFS Vs SFS Which is better.
« Reply #6 on: October 14, 2003, 04:11:45 AM »
Quote
Anyway, I would like to know if anyone has thoughts as to SFS as i haven't tried this filesystem yet and I know it may be hard to get PFS now. Is SFS better than PFS?

Still, PFS, what a great filesystem :)


The fact that more people have experience (good ones at that!) with PFS than SFS might say something to answer your question! :-)

I ran PFS 2 & 3 on both my 4000 and on Frankenthousand. Never had a problem with either one.

For now, I plan to run PFS3 on a spare drive in my AmigaOne for backup purposes, while I evaluate FFS2 on the main drive.

(Oh. . . and no, I am not a beta tester, and don't have OS4 yet. I'm just talking about what I'll do once OS4 arrives. I'm stuck with Linux for now.)

Paul
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Offline Piru

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Re: PFS Vs SFS Which is better.
« Reply #7 on: October 14, 2003, 05:32:34 AM »
I've used PFS back from days it was still a hobby project called PFS. It later changed into AFS, then back to PFS2 and finally PFS3.

I turned to AFS only when the ffs2afs tool was made available, and I could convert all remaining ffs filesystems to AFS.

I now use PFS3 on my Pegasos.

PFS/AFS/PFS2/PFS3 has never caused any problems or data loss.
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Offline manicx

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Re: PFS Vs SFS Which is better.
« Reply #8 on: October 14, 2003, 12:01:20 PM »
Good old AFS for me. 100% trustworthy....
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Offline lempkee

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Re: PFS Vs SFS Which is better.
« Reply #9 on: October 14, 2003, 12:09:36 PM »
all this is based on luck it seems ;(.

and the docs in pfs3 is wrong if you have an Idecontroller or scsi controller not mentioned in the pfs docs etc.

anyway i will only say this "when it crash" make sure you have an full backup as it wil hurt like hell.


piru:u forgot to mention AFS-2 :D in the ist.
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Offline Framiga

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Re: PFS Vs SFS Which is better.
« Reply #10 on: October 14, 2003, 12:19:09 PM »
@lempkee

I'm still use PFS3 18.5 (the last update) and it works great without any crash.

The only one i have had, was due my fault (reseating Zorro cards with power ON . . .shame!!!).

The partition was corrupted, so i've done a QUICK pfsformat and then with PFSDoctor 1.6, an Undo Format.

All the data come back without any file lost :-)

Obviously, after this "esotheric" operation, PFS (and me too) suggest you to backup the partition, make a Full Format and copy it back again.

Can you do so with another FS?

Anyway, SFS is a great FS too. (use the stablest version)

Ciao

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Offline CU_AMiGA

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Re: PFS Vs SFS Which is better.
« Reply #11 on: October 14, 2003, 05:11:23 PM »
Yes.... which one is the better? And why? I may need to know!

Regards,
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Offline Mad-Matt

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Re: PFS Vs SFS Which is better.
« Reply #12 on: October 14, 2003, 06:39:02 PM »
Id say SFS is the better of the two since pfs wastes so much space on the hd, (10 megs for every 100 alocated as i recall). Also sfs seems to slow to a snails pace when a partition has lots of small files (like a browser cache).  SFS however is still developed, if a little slowly ;)

Personaly i havent found the need to move from FFS(and yes i have triedd the alternatives), theres little to no difference speedwise on the crappy builtin ide port and my 040. Since the os39 updates, validation hasnt been an issue. the pros for FFS are 100% amiga compatable and working recovery tools(wel upto a point anyway).

The FFS setup is a little different under os35/39 which is where it gets its speed boost (bigger blocks and correct maxtrransfer setting for amiga internal ide).
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Offline Thematic

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Re: PFS Vs SFS Which is better.
« Reply #13 on: October 14, 2003, 08:51:59 PM »
SFS does slow down on small files, but this can be lessened considerably by the good old addbuffers command. So even these journaling systems benefit considerably from a large buffer at times. A specially tailored (= optimized) disk cache would probably be better.
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Offline x56h34

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Re: PFS Vs SFS Which is better.
« Reply #14 on: October 14, 2003, 09:04:06 PM »
No problems here by using either of them. Pretty much the same, either way you go, IMHO.

I am using the latest FFS now since I have Fast ATA 4000 controller installed, and it split my hard drive  to smaller chunks (~4Gb each), so losing a partition likely won't affect me that much anymore. :-)
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