Guys, i need some help here.

I thought i knew how to deal with big size HDs and alternative filesystems on Amigas, but i´m experiencing some problems, so would be glad to have some advice here.

I´m using a 250GB SATA HD on my Pegasos 2, in the primary IDE port with a SATA to IDE adapter. This drive is alone as master on the primary IDE channel.

On the second channel i have a 40GB IDE HD as master and an IDE DVD burner as slave.

On this second 40GB HD i had Linux and MOL partitions, but had to repartition to use as a backup drive in an emergency, due to problems in the 250GB one.

On the 250GB HD i have a first FFS 400MB partition for Boot, a 600MB SFS partition for MOS 1.4.5 (yes, i still use it from time to time), then another 600MB SFS partition for MOS 2.7, then 4GB of blank space for future expansion or needs, then a 800MB for AOS 4.1.3, then i have a SFS partition of 125GB for my files then the rest (about 100GB) in a backup SFS partition.

So, bottom line, the larger SFS partition i have is 125GB in size, and within the maximum 128GB limit for SFS, right?

The problem is that as soon as i start to add more files to the two last partitions, at some point they became corrupt, and the first signal is that the "free space" reported to the damaged partition goes down from 80 - 90 ish GBs to 1MB or so.

Then i have to copy all the important files to the emergency 40GB disk, and this takes me a couple days untill i´m up and running again with the 250GB HD.

As far as i know, MOS already have the SFS in the "ROM", and in AOS4 it´s a kickstart (kernel) module as well. So i shouldn´t have the filesystem in the HD RDB, right?

Is this true also for the MOS 1.4.5? Because before i added the SFS to the RDB some partitions (including the 40GB one with my backed up files) were not available.

If i have the SFS on RDB, does it have higher priority than the one in ROM?

How should i proceed to successfully and realiabily install and partition this HD?

I tried to do this with and without the SFS in RDB, tried to use AOS4 Media Toolbox to install, partition and format the HD, did the same with SCSIConfig (on MOS 2.7 only) instead, and had the same corruption problems in all the cases.

The last thing i did was install the SFS on RDB, and it´s working, but i hadn´t used it for enough time yet to have a solid conclusion.

Oh! And the first time i installed this 250GB HD, i did the partitioning with AOS4 and used SFS2 for one big 200+ GB partition, but it became corrupted. Is there support for it on MOS? How should i proceed to have it working right?

Thanks a lot!

Just bumping my own thread

No one can help?

Thanks!

In theory you made no mistake, in practice though try and keep your SFS partitions below 100gb (I've 3x98gb partitions working reliably for years) or you may try the 68k version of SFS and utilize the SFS/02 option. I *don't* recommend this as it could potentially lead to corrupt data, but having said that, with SFS/02 I have a big 160gb partition working fine for 2 years now on my peg2 and another one of 200gb working equally fine on my A1200. I suggest you go the SFS + 98gb route though.

[ Edited by vulture 12.12.2011 - 14:07 ]

@vulture

Thanks a lot for your reply!

Well, i have used the SFS/02 too, before, and that´s when my problems started. This was with an 40GB HD, before i installed the 250GB SATA HD.

I´ve got a new SATA to IDE adapter, and will try it, hope this improve things.

My main doubt right now, is that i don´t know in what situations the corruption occurs. As i use MOS 1.4., MOS 2.7 and AOS 4.1, any of them can be the responsible for that. So i´m trying too to use one of them only for some time, to see if i can reproduce the problem. But it´s difficult. It doesn´t seems to have a pattern.

Right now i´m using the 68k version on the RDB and it´s working, but sometimes i have the SFS error requester, saying the volume became invalid and has been locked.

One of the partitions i have in this same HD is a 80GB one, using SFS too, and i had the same errors in it too.

So i´m also wondering if anyone has tried the 68k version of PFS in Pegasos, and if it works? I know we already have MOS native version of PFS, but i want to use it on AOS too...

> i´m also wondering if anyone has tried the 68k version of PFS in Pegasos,
> and if it works?

Some randomly chosen statements:

https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=5694&forum=9&start=4
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=4968&forum=42&start=1
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=3986&forum=10&start=2
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=3163&forum=3&start=14
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=2963&forum=9&start=2

> I know we already have MOS native version of PFS

It's not released yet, isn't it?

> but i want to use it on AOS too...

IIRC Piru intends to release one PFS version for MorphOS that is backwards compatibe with old m68k PFS, and only then release a new incompatible version (for MorphOS as well as OS3 I suppose) with new features added and certain limitations removed.

I'd propose mos native sfs/00 and aos native sfs/00 with <100gb partitions, not the 68k one. ie, I've installed/formatted mine with aos ppc sfs and mos works fine with it.

I tried PFS with AOS4 this afternoon. It didn´t work.

PFS direct-scsi version don´t complete formatting with pfsformat. With PFS "normal" version I could format a small partition (500MB), but with a big partition (80GB) it trashes the HD after a Grim Reaper. As the DS version is the suggested one for bigger partitions, and it doesn´t work, i gave it up.

I suspect it would work in MOS, but as i want a common work partition for AOS and MOS it will not work for me.

So i created a 89GB Work partition with AOS (also a "boot", a "aos" and a "mos" partitions) using the native SFS. Formatted and copied the backup files over. Still copying the work partition files tough, and will see what happens.

So far, so good.

I´ll report back my results as i finish the copy process, and make some tests.

Vulture, once again man, thanks a lot for all your help!

> I tried PFS with AOS4 this afternoon. It didn´t work. PFS direct-scsi version
> don´t complete formatting with pfsformat. With PFS "normal" version I could
> format a small partition (500MB), but with a big partition (80GB) it trashes the
> HD after a Grim Reaper. As the DS version is the suggested one for bigger
> partitions, and it doesn´t work, i gave it up.

You might need to apply this patch beforehand. I also recommend you to read that thread (don't let you throw off by the "TD64 is a bug" nonsense proclaimed by some therein) as this posting suggests PFS3 should work on OS4.

@mugo

np m8, hope it works fine for you this time :)

@Andreas_Wolf

Thank you too, Andreas! Thank you very much for your previous post, and this too!

I´ll take a look at this patch and the thread you mention as soon as i have some spare time. Probably tomorrow, and i´ll let you guys know my experience.