Hi Jens,

Thanks for your reply;

- What's below the VG? (Software RAID, hardware RAID?
- Which controllers, which settings (ie what RAID level) are you using, was the RAID set fully initialized when you created the VG?
- what disks are you using?
- how's the load of your system, what do the io statistics (graphs provided by DSS) show?

Hardware raid - LSI Megaraid raid 6, full initialisation, 16 x 1TB SATA disks... couldn't find any dss i/o graphs.

Cheers,
Jon