Re: Way to create large block size under LINUX for ORACLE dataabase??
- From: zhu chao <zhuchao@xxxxxxxxx>
- To: jametong@xxxxxxxxx
- Date: Mon, 12 Dec 2005 22:51:49 -0800
The matrix above is out of date. At least for Ext3Filesystem, single file
can be much larger than 2gb. And solaris should only support 4k/8k
blocksize?(even for vxfs).
Bigger blocksize doesnot always means better performance.
And if you really want big block size, you can always go with raw device.
Which does not have such a concept.
On 12/12/05, jame tong <jametong@xxxxxxxxx> wrote:
>
> The block size is file system specific.
>
> I just know that xfs can use block size greater than 4k in linux .
>
> Refered From http://www.linuxgazette.com/issue55/florido.html
>
> Max. file system size Block sizes Max. file size XFS 18 thousand
> petabytes 512 bytes to 64KB 9 thousand petabytes JFS 512 bytes blocks / 4
> petabytes 512, 1024, 2048, 4096 bytes 512 Tb with 512 bytes blocks 4KB
> blocks / 32 petabytes 4 petabytes with 4KB blocks ReiserFS 4GB of blocks,
> 16 Tb Up to 64KB
> Currently fixed 4KB 4GB, 2^10 petabytes in ReiserFS (3.6.xx) Ext3FS 4Tb
> 1KB-4KB 2GB
>
--
Regards
Zhu Chao
www.cnoug.org
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