Max file size on ext3?

Max file size on ext3?

[R. J. Wysocki]

Can you tell me, please, what the file size limit on ext3 is (should be, if 
any)?

-- 
Rafael J. Wysocki,
SiSK
[tel. (+48) 605 053 693]
----------------------------
For a successful technology, reality must take precedence over public 
relations, for nature cannot be fooled.
					-- Richard P. Feynman

Re: Max file size on ext3?

[Matti Aarnio]

On Tue, Mar 30, 2004 at 08:11:51PM +0200, R. J. Wysocki wrote:
> Can you tell me, please, what the file size limit on ext3 is
> (should be, if any)?

  Same as with EXT2.

  In theory with 4k block size:
     (4096/4)^3 * 4096 = 4 000 GB = 4 TB
  (plus a bit more, but that is minor detail)

  Your application must use LFS extensions, e.g.
     open("filename", O_LARGEFILE, ..)

  and your  "ulimit -f"  must be "unlimited", otherwise
  you will encounter 2 GB limit of original ABI.

  Another limitation that may come and bite you, is
  underlying block device capabilities.  Prior to 2.6
  kernels any block device can not exceed 1 TB size.
  (Or 2 TB, depending...)

> -- 
> Rafael J. Wysocki,
> SiSK
> [tel. (+48) 605 053 693]

/Matti Aarnio

Re: Max file size on ext3?

[Richard B. Johnson]

On Tue, 30 Mar 2004, R. J. Wysocki wrote:

> Can you tell me, please, what the file size limit on ext3 is (should be, if
> any)?
>

Depends upon the block size.

Block size		file size
1 kb			16 GB
2 kb			256 GB
4 kb			2048 GB
8 kb			2048 GB

Linux 2.4 limits single block device sizes to 2 TB.

Extracted from some information by haversain-ga on google.

Cheers,
Dick Johnson
Penguin : Linux version 2.4.24 on an i686 machine (797.90 BogoMips).
            Note 96.31% of all statistics are fiction.