Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
Renovating the wheel

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.

user:
pass:
register,


                 

multiple cluster size drive

use different sections of a drive with different size clusters to manage space
  (+2)
(+2)
  [vote for,
against]

by having two or more differnt sizes of clusters on a drive, you can manage space more efficiently - this would mean that all your system files would waste less space yet the file allocation table wouldn't have too many blocks to make it slow or unusable.
joltrushsoon, Mar 05 2000

Apple's HFS Plus http://developer.ap...otes/tn/tn1150.html
[johan, Mar 05 2000]


Please log in.
If you're not logged in, you can see what this page looks like, but you will not be able to add anything.



Annotation:







       Um, most filesystems already do this. Unix filesystems typically have "blocks" and "fragments", for example. It's only lame, legacy-ridden (read: DOS) filesystems that are limited to a single cluster size.   

       Or do I misunderstand your idea?
egnor, Mar 05 2000
  

       Apple introduced better disk space management in MacOS 8.1 (Shipped about Jan 1998?) I added a link. Look at the section called "Efficient Use of Disk Space."
johan, Mar 06 2000
  

       just to make one thing clear - when i said 'drive', i meant 'partition'
joltrushsoon, May 15 2000
  

       Completely baked.   

       Whether it's called a drive or a partition, most file systems allow for variable cluster sizes.
BigThor, Aug 04 2000
  

       @BigThor Ok, it's been 10 years and I've yet to hear of a filesystem that uses multiple cluster sizes on the same volume. Otoh, I don't see what benefit that could possibly give.
orbik, May 18 2010
  

       If each physical track was defined as a cluster to the file-system, then that would be perfect for media files and archives. [edit: cylinder, not track, thanks [supercat]]
FlyingToaster, May 19 2010
  

       orbik, BigThor, johan:   

       HFS Plus, like many systems, allows for different volumes to have different cluster sizes; any particular volume is limited to a single size.   

       Personally, I would like to see a file system subdivided into a "big files" area and a "small files" area. The "big files" area would be mapped as one cluster per cylinder; the "small files" area would be mapped normally. The partition between the two halves could shift depending upon the contents of the volume.
supercat, May 20 2010
  


 

back: main index

business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle