[PHP] Re: Calculate Directory Size

[Alan McFarlane]

I suggest using an external tool - using PHP would probably be too slow esp.
if you're hitting 1000+ users. (Plus, I think you would have to run a lot of
clearstatcache()'s which may cause all sorts of problems)...

If you do an ls or dir or similar then you could parse the output, however
there must be a decent tool out there somewhere that runs nice and fast.


Simon H [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 On advice, I've moved this from the Pear list.  I have a
 problem...hopefully someone can help, because I've no idea where
 to even start!

 I have a user database, with a table called Users, and fields as so:

 (it would be cool if this would work on both Linux and Windows)

 -
 User DiskUsage (Mb) Quota (Mb) HomeDirectory
 -
 jim 50 100 F:\users\jim \\ In Windows

 jim 50 100 /users/jim \\ In Linux
 -


 The database wouldn't be shared between Windows and Linux, just 1 or the
 other.

 What I would like to be able to do is, press a button on a php page, and
 scan the (MySQL or ODBC through Pear DB) database, and for each user,
 calculate the size of their HomeDirectory, and Update the DiskUsage in the
 DB accordingly.

 I'm wondering tho how this would work with say 1000's of users each with
 several hundred Mb's or even several Gb's each.  The users will have
 subfolders too, so the function would have to recurse the dirs, if
 possible.

 Is this even possible with PHP?

 I appreciate any help I can get on this, because its waay beyond me
 presently.

 Thanks

 Simon H




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Re: [PHP] Re: Calculate Directory Size

[Jeff Sheltren]

I'm sorry, but I won't be much help on the windows side of things, but for
UNIX, the job is already done for you!  There is a utility called 'du',
which will tell you the disk usage of a file (or a folder and its contents).
Specifically, you would want to use the -s flag to specify only to show the
grand total, and not the size of each file...  type 'du --help' or 'man du'
at the command line to find out more.  But an example:

du -s -m /path/to/users/home/dir/

that will tell you in MB how much disk space they are using.  Careful
though, this is checking all their files recursively, so this can get
cpu/hdd intense if you are using it for lots of users.  My advice would be
to run your script when there is a low load on the server.

I hope that helps get you started.

Jeff

 Simon H [EMAIL PROTECTED] wrote in message
 [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
  On advice, I've moved this from the Pear list.  I have a
  problem...hopefully someone can help, because I've no idea where
  to even start!
 
  I have a user database, with a table called Users, and fields as so:
 
  (it would be cool if this would work on both Linux and Windows)
 
  -
  User DiskUsage (Mb) Quota (Mb) HomeDirectory
  -
  jim 50 100 F:\users\jim \\ In Windows
 
  jim 50 100 /users/jim \\ In Linux
  -
 
 
  The database wouldn't be shared between Windows and Linux, just 1 or the
  other.
 
  What I would like to be able to do is, press a button on a php page, and
  scan the (MySQL or ODBC through Pear DB) database, and for each user,
  calculate the size of their HomeDirectory, and Update the DiskUsage in
the
  DB accordingly.
 
  I'm wondering tho how this would work with say 1000's of users each with
  several hundred Mb's or even several Gb's each.  The users will have
  subfolders too, so the function would have to recurse the dirs, if
  possible.
 
  Is this even possible with PHP?
 
  I appreciate any help I can get on this, because its waay beyond me
  presently.
 
  Thanks
 
  Simon H
 



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