Wednesday Sep 24, 2008

What lies beyond the archaic 8 char FAT filesystem limit?

I took my family out to the Donegal this weekend. By coincidence my Pentax digital camera "rolled over" from IMGP9999.PEF to IMGP0001.PEF just before I took this picture:
Muckrosssun
So now I must move all new files to a new folder or change the names before I rsync to my photo backup space to avoid overwriting old files. Whoever decided 10,000 photos was a sufficient limit for a digital SLR never had kids or lived in such a beautiful country. I'm still amazed at how many modern standards (e.g. ISO-9660, DCIM, DICOM) still bow to the 8.3 limitations of Microsoft's old FAT filesystem. As far as I know, DOS and RT-11 were the only popular operating systems made after 1970 with such a SHRTFLNM.LMT. Solaris, AmigaDOS, VMS, Gem, Geos, even the Vic-20 and Commodore 64 filenames exceeded this limit! Yes, it's possible to work around this limit with CLVRABRV.NMS or DIRECTRY STRUCTRS, but it seems that of all of the Digital camera manufacturers, only Casio, HP and Kodak have reasonably long term naming conventions, but none of them is as forward thinking as ZFS would allow them to be.

We really enjoyed our stay at the friendly family run Ocean Spray Bed and Breakfast on Muckross head, just east of the Slieve League cliffs in Donegal. The fact that there were no nearby restaurants or other late season tourists contributed to that "edge of the earth" feel of Donegal.

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bnitz

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