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HardNetSoft Blog
Mac OS X 10.6.5 should manage a new filesystem: exFAT. This format was conceived in particular for the Flash memories. It is used more and more by the manufacturers of cameras (Canon, Nikon, Sony to quote only some of them).
exFAT (Extended File Allowance Counts) is a filesystem conceived particularly for the memories flash and the memory supports external (hard drives and assimilated) introduced into Windows CE 6.0.
The advantages compared to various formats FAT are:
▪ the theoretical limit of the size of the files is of 264 bytes (16 Eio), to compare with the 232 (4 Gio) of the FAT32;
▪ support of larger volumes whereas FAT32 was limited to volumes
▪ performance of the allowance of free space improved thanks to the introduction of bitmap of free space, left software chart of free space as there was a chart of the space occupied by the files, this making it possible to more easily find a free space according to the size of the files to be written and also a faster obliteration this those;
▪ support for more than 216 files per repertory;
▪ support of the Access Control List;
▪ support of transaction-safe FAT (TFAT) file system or filesystem with transactions (modifications) protected of the table of allowance of the files (optional functionality introduced into WinCE). In short, metadata of the TFAT ▪ possibility of storing specific parameters OEM in the metadata;
▪ use of checksums of the file names (name hashes) for a faster checking of those.
In fact, this filesystem is managed right now by certain versions of Mac OS X 10.6.4, in particular that delivered with the last iMac. The next minor update of Mac OS X will generalize this assumption of responsibility.
ExFAT takes all its interest with memory cards of the type SDXC, which can have a theoretical maximum capacity of 2 To. These last had evil to put up with some limiting theoretical of the FAT32.
Even if the things are not very clear on this subject - considering the return of certain users - it seems that the last iMac and Mac Mini are equipped with a compatible card reader SDXC (to also read: Mini Mac has a reader SDXC).
At all events, you will be able to always turn you towards a card reader who manages this standard.
Service Pack 1 of Windows Vista adds the support exFAT1. The support of exFAT is also possible under Windows XP SP2 and SP3 thanks to update KB9557042. The support of exFAT is also integrated into Windows 7.
It was really time that Apple proposes ExFAT because the use of memory flash is increasingly current.
exFAT (Extended File Allowance Counts) is a filesystem conceived particularly for the memories flash and the memory supports external (hard drives and assimilated) introduced into Windows CE 6.0.
The advantages compared to various formats FAT are:
▪ the theoretical limit of the size of the files is of 264 bytes (16 Eio), to compare with the 232 (4 Gio) of the FAT32;
▪ support of larger volumes whereas FAT32 was limited to volumes
▪ performance of the allowance of free space improved thanks to the introduction of bitmap of free space, left software chart of free space as there was a chart of the space occupied by the files, this making it possible to more easily find a free space according to the size of the files to be written and also a faster obliteration this those;
▪ support for more than 216 files per repertory;
▪ support of the Access Control List;
▪ support of transaction-safe FAT (TFAT) file system or filesystem with transactions (modifications) protected of the table of allowance of the files (optional functionality introduced into WinCE). In short, metadata of the TFAT ▪ possibility of storing specific parameters OEM in the metadata;
▪ use of checksums of the file names (name hashes) for a faster checking of those.
In fact, this filesystem is managed right now by certain versions of Mac OS X 10.6.4, in particular that delivered with the last iMac. The next minor update of Mac OS X will generalize this assumption of responsibility.
ExFAT takes all its interest with memory cards of the type SDXC, which can have a theoretical maximum capacity of 2 To. These last had evil to put up with some limiting theoretical of the FAT32.
Even if the things are not very clear on this subject - considering the return of certain users - it seems that the last iMac and Mac Mini are equipped with a compatible card reader SDXC (to also read: Mini Mac has a reader SDXC).
At all events, you will be able to always turn you towards a card reader who manages this standard.
Service Pack 1 of Windows Vista adds the support exFAT1. The support of exFAT is also possible under Windows XP SP2 and SP3 thanks to update KB9557042. The support of exFAT is also integrated into Windows 7.
It was really time that Apple proposes ExFAT because the use of memory flash is increasingly current.
