problem with migrated raid configuration

I have the following problem.

Initially I have created a RAID5 with 3 disks. I have no problems using this configuration. However after I migrated the RAID5 to 5 disks, the extra storage is not available.
"setup->disk manager" is showing the correct size but "status->share volume" is showing the old size;

Function: Share volume statistics

Total volume size (GB): 595.9
Used volume size (GB): 0.1
Free volume size (GB): 595.8
Reserved for snapshot (GB): 0

Volume usage: 0%


I have downloaded the logs and the file tests.log shows this;

*-----------------------------------------------------------------------------*
fdisk -l
*-----------------------------------------------------------------------------*

Disk /dev/sda doesn't contain a valid partition table

Disk /dev/sda: 1279.9 GB, 1279954780160 bytes
255 heads, 63 sectors/track, 155612 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

I tried "repair filesystem on LV" with the extended console tools which doesn't help.
Currently I'm in a test fase, so no production data is stored on the NAS. I think by "deleting content of units" with the extended console tools and then using "setup->disk manager" I will get the full capacity.
However this is for me not an ideal solution because during the migration to the NAS I want to migrate the RAID5 from 5 disks to 8 disks without loosing data.

The NAS 2.0 is based on the 2.4 Kernel and you do not have the capability with our utilities to do Physical Volume resizing. NAS-XSR Enterprise you have this feature.

Hmm, a case of bad product selection on my side. I assumed (is the mother of all f..) that the difference between NAS and XSR was the software raid capability of XSR.
I have a new stategy; Create a RAID5 of 4 disks. During the migration create a second RAID5 of 4 disks.
The only drawback of this stategy is the loss of an extra disk.

Sorry for the inconvenience but there are limitations to the 2.4 Kernel on the NAS 2.0. On NAS-XSR it's not just the Software RAID features but greater expansion on Logical Volumes up to 16TB plus much more as identified on the following link.

http://www.open-e.com/nasxsr/network...ats=no&lang=en

The Open-E NAS-XSR family is the new generation of the Open-E NAS software. Compared to the Open-E NAS, the NAS-XSR family offers up to 60% better performance, Logical Volumes up to 16 TB, improved hardware compatibility and more features, like software RAID, cross data synchronization and Anti-Virus.

The Open-E NAS-XSR has now new Tuning Tools and support for Infiniband to increase the high data-throughput of the NAS servers based on the Open-E software.