Very slow disk speed / mpt0: LSILogic SAS/SATA Adapter

Hi, we have a HP ProLiant server with RAID 0/1 controller onboard. It is detected as mpt0 (I have attached a part of dmesg output at the end of the mail). As reported by some already ( http://www.mail-archive.com/freebsd-performa...@freebsd.org/msg02446.html), we are also getting extremely slow

Re: Very slow disk speed / mpt0: LSILogic SAS/SATA Adapter

On Wed, Jun 17, 2009 at 01:35:52PM +0200, Matej ?erc wrote: Hi, we have a HP ProLiant server with RAID 0/1 controller onboard. It is detected as mpt0 (I have attached a part of dmesg output at the end of the mail). As reported by some already (

Re: Very slow disk speed / mpt0: LSILogic SAS/SATA Adapter

Hi, thank you very much for a very detailed answer. This machine is in co-location in a specialized data center which provides totally controlled environment (temperature, power etc.) and after being their partner for about 5 years now not a single power outage occured. Of course the data is