If you have:
1) IBM Br10i - PCI-E x8 Controller: LSI SAS1068e, supports 3 Gb/s SAS/SATA - eight-port
2) LSI SAS 9211-8i - PCI-E x8 Controller: LSI SAS2008, supports SAS 6 Gb/s SAS/SATA - eight-port
or equivalent, operating in HBA mode, and your hard disk spinup/spindown isn't working correctly, please drop me an email and I'll give you a link to a build that tries to fix this.
[email protected]