16 TB Disk Arrays and ext3fs woes

[Rainer Traut]

Hi,

Fischer, Carl schrieb:
>    I'm running a 16 TB disk array on a PE2950 with a PERC 5/E
> (megaraid_sas kernel module 3.09-1).  I expanded a pre-existing 3.5 TB
> partition to fill the volume (using LVM and resizefs).  Now, the volume
> mounts just fine, but only root can write to it.  Everyone else gets a
> "disk full" error.  I don't see any hardware errors in
> /var/log/messages.  My suspicion is that the filesystem thinks that the
> 13.5 additional TB are reserved for root, but I tried adjusting that
> parameter with tune2fs and had no luck.  
> 
>    Even with 64-bit CentOS installed, fsck.ext3 runs for a long time,
> then seg-faults (only the seg-fault shows up in /var/log/messages).

With centos it's easy to try with xfs. Maybe this works as others 
pointed out. Though I have never run such big fs but have very good 
experience with xfs.
Use their centos plus repo and install the centosplus kernel + xfs 
kernel module + xfsprogs.

Rauber