Analysis of information sources in references of the Wikipedia article "File Allocation Table" in English language version.
... only 2^12 (that is, 4096) allocation units or clusters can be addressed. In fact, the number is less than this, since 000h and 001h are not used and FF0h to FFFh are reserved or used for other purposes, leaving 002h to FEFh (2 to 4079) as the range of possible clusters.
ACCDATE=drive1+|- [drive2+|-]...
"Clusters cannot be 64 kilobytes (KB) or larger
0xEA
and 0xEC
magic values.0x00
for a file that has EAs these EAs will no longer be found using DosFindFirst/Next calls only. The other OS/2 calls for retrieving EAs (DosQueryPathInfo, DosQueryFileInfo and DosEnumAttribute) do not rely on this byte. Also the opposite could [...] occur. [...] In this situation only the performance of directory scans will be decreased. Both situations [...] are corrected by CHKDSK".{{cite web}}
: CS1 maint: bot: original URL status unknown (link)The numbering starts with 2; the first two numbers, 0 and 1, are reserved.
ACCDATE=drive1+|- [drive2+|-]...
"The numbering starts with 2; the first two numbers, 0 and 1, are reserved.
Clusters cannot be 64 kilobytes (KB) or larger
0x00
for a file that has EAs these EAs will no longer be found using DosFindFirst/Next calls only. The other OS/2 calls for retrieving EAs (DosQueryPathInfo, DosQueryFileInfo and DosEnumAttribute) do not rely on this byte. Also the opposite could [...] occur. [...] In this situation only the performance of directory scans will be decreased. Both situations [...] are corrected by CHKDSK".0xEA
and 0xEC
magic values.{{cite web}}
: CS1 maint: bot: original URL status unknown (link)