Stan wrote:
>>
>> There is no limit on how many extents a file can have based on
>>the file label extent data structure.
 
>Except for the fact that all extents for a single file must be in the
>same Label Table, and a Label Table is limited by at least two items:
>it can't be more than 20 extents, and has to reside on a single disk drive.
 
A minor detail here: label table can have multiple extent blocks (each
extent block holds upto 20 extents).  Giving the fact that each label table
extent must be exactly .75 MB, just 20 extents would severely limit the
number of files we can have on a disk.
 
However, those label table extent blocks are "magic" extent blocks.  They
are reserved for "magic" files (hidden system files) only and there is
a very limited supply of them.
 
Stan is right that all label table extents must be on the same disk.
Otherwise, we may not be able to map in a label table if other disks are
not mounted!
 
Paul Wang                      (408) 988-7378
SolutionSoft Systems, Inc.     [log in to unmask]