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Old 24 April 2014, 23:06   #41
gulliver
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@Toni Wilen

Hi, please could you please clarify me the current PFS3-aio limits in each mode for:

Maximum filesize
Maximum bootable partition size
Maximum partition size (non bootable)
Maximum drive size

Thanks in advance
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Old 25 April 2014, 08:36   #42
Toni Wilen
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Internal limits are exact same as in official PFS3.

Max partition size: 104G (Can't be increased without making incompatible block structure changes)
Max file size is 2G-1. (4G-1 support won't be difficult, >=4G would require new block structure changes again) EDIT: There are some unused bits in direntry structure, using them for extra filesize field bits should allow file sizes larger than max partition, up to 1T or so.

Bootable or not bootable partition size or drive size depends only on device driver with PFS3AIO. Check for example http://eab.abime.net/showthread.php?t=61666

There is no filesystem side boot partition size limit. Never have been. It does not exist.

Last edited by Toni Wilen; 25 April 2014 at 09:11.
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Old 25 April 2014, 13:03   #43
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Thank you for the answers
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Old 01 May 2014, 12:55   #44
Toni Wilen
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Some PFS3 news..

I started "small" project (with help from PFS3's author M.Pelt) that tries to extend PFS3 file and partition max allowed size. PFS-experimental branch in sourceforge SVN.

File size extension is already done (but with only very minimal testing), current limit is 128G but absolute (and mostly useless because partition size can't be that big) limit will be few hundred terabytes..

Partition size limit extension is more complex. New real world limit probably will be something from 1T to 2T or so. Coming later..

"Extended" PFS3 will of course keep "old" PFS3 partition support. Block level changes are small extensions that won't break compatibility.

When it is ready for real use? No one knows.
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Old 01 May 2014, 17:31   #45
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That is indeed good news, as the filesize limit was not really adequate for todays computing needs (Backups & DVD/BRay file storage can easily break that limit).
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Old 12 May 2014, 23:19   #46
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what's the difference between pfs3_aio-handler and pfs3_aio-handler-custom ???
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Old 13 May 2014, 01:01   #47
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See post 38..
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Old 13 May 2014, 08:20   #48
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ok thx
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Old 13 May 2014, 09:44   #49
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Great project !
Keep it compatible with KS1.3 and 68000, please
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Old 14 May 2014, 03:35   #50
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Quote:
Originally Posted by Toni Wilen View Post
ROMmable test version attached.

Changes since previous public version:

- Includes resident structure that adds PFS\3 and PDS\3 dostypes to FileSystem.resource, also creates FileSystem.resource if it does not exist (Required by KS 1.3)
- 100% pure/rommable.
ROMmable??? As in possibility of putting the March 18.5 pfs3_aio-handler into a custom ROM like with the ROMmable blitzkick modules???

Or did I get giddy over nothing and it's a patched version for some people with some odd and buggy scsi-controllers?
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Old 14 May 2014, 18:26   #51
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That's what ROMmable means.. Very nice, thanks again Toni!
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Old 15 May 2014, 00:33   #52
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What would be the purposes of putting this in a ROM? Except if you are using the GVP driver as mentioned?

Will it save RAM by not loading it off the RDB on boot?
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Old 15 May 2014, 18:01   #53
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Quote:
Originally Posted by demolition View Post
What would be the purposes of putting this in a ROM? Except if you are using the GVP driver as mentioned?
Because you can? (and have free ROM space)

Quote:
Will it save RAM by not loading it off the RDB on boot?
Yes, ROM handler code is not copied to RAM. (saves about 65k or so when using pfs3-aio)
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Old 29 May 2014, 11:52   #54
Toni Wilen
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Pfs3aio 2.3

New Aminet release is now available.

Includes fix for very old PFS3 "Wrong Index Block ID" error after some file operations, affected only partitions larger than 5G and rom resident priority increased to make sure it is available before any 3rd party boot ROM HD driver runs. (for example GVP tekscsi that normally can't load non-FFS filesystems from RDB)
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Old 29 May 2014, 12:05   #55
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Good news, thanks. I expect it can just be replaced on an existing RDB without corrupting any partitions? I do have a partition larger than 5G on my 1200 so it might be good to update it.
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Old 29 May 2014, 13:29   #56
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Mr. Wilen, you are such a genius. Thanks for all your work. You are unbelivable, but true, aren't you?
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Old 29 May 2014, 15:41   #57
Toni Wilen
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Quote:
Originally Posted by demolition View Post
Good news, thanks. I expect it can just be replaced on an existing RDB without corrupting any partitions? I do have a partition larger than 5G on my 1200 so it might be good to update it.
Yes, filesystem internal format has not changed but as usual, taking backup is always recommended when doing anything HD/filesystem related. (Especially if you have access to PC which allows relatively small Amiga HDs to be imaged really quickly)

Quote:
Originally Posted by Dic_Ray View Post
Mr. Wilen, you are such a genius. Thanks for all your work. You are unbelivable, but true, aren't you?
I am not so sure about that, at least the bug fix was not mine
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Old 24 June 2014, 12:23   #58
Toni Wilen
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PFS3 extension status update:

- >4G file size support was already implemented. Still mostly missing MOS/OS4 64-bit file access packets. OS3.x compatible test cases are practically non-existing..
- new partition size limits implemented: 411G and 1.6T (from 106G). Each step more or less doubles internal buffer memory usage. Larger limits would mean huge re-write.
- pfsdoctor large partition size and large file size support implemented.
- most importantly: no tests done yet
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Old 24 June 2014, 15:46   #59
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Quote:
Originally Posted by Toni Wilen View Post
PFS3 extension status update:

- >4G file size support was already implemented. Still mostly missing MOS/OS4 64-bit file access packets. OS3.x compatible test cases are practically non-existing..
- new partition size limits implemented: 411G and 1.6T (from 106G). Each step more or less doubles internal buffer memory usage. Larger limits would mean huge re-write.
- pfsdoctor large partition size and large file size support implemented.
- most importantly: no tests done yet
Hi Toni,
was this bug fixed?
http://eab.abime.net/showpost.php?p=939258&postcount=44

Quite annyoing to repartition everything after you discover that you don't really have 30 buffers but 150
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Old 24 June 2014, 16:29   #60
Toni Wilen
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Quote:
Originally Posted by jbenam View Post
Hi Toni,
was this bug fixed?
http://eab.abime.net/showpost.php?p=939258&postcount=44

Quite annyoing to repartition everything after you discover that you don't really have 30 buffers but 150
It can't be "fixed" because already existing buffer settings of 30 would become real buffer setting of 30 and someone will complain that it broke something because it suddenly become slower..

There is no need to repartition anything, just change the buffer value in hdtoolbox and save changes. It is 100% safe. (But only if you used hdtoolbox to partition it originally!)
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