Hello wise people of STH
I've been using multiple SAS2008 cards for a while and needed to free up some PCIe slots, so bought an Adaptec 72405 card (have about 20 drives connected).
My server is for media - I use Snapraid for parity so most of the drives are idle most of the time, hence I want spindown. A mix of seagate and WD 6/8/10TB drives.
I've switched the card to HBA, and have managed to get it to spin them down in Windows Server by adding the registry entry under Storport that people used to persuade the SAS2008 cards to spindown.
That works fine for about 10 minutes - it then starts spinning disks up randomly (normally one at a time). Sometimes they spin up and stay up, othertimes spin up and immediately stop (i've got a killawatt type power meter so I can hear the drive and see the consumption spike then drop back). I've used the tool drivepowerstate that shows Windows thinks they are all still spun down.
I'm assuming this is some kind of keep-alive in the driver and/or the card but hoping it's something that can be disabled - anyone seen similar/managed to fix this?
I've been using multiple SAS2008 cards for a while and needed to free up some PCIe slots, so bought an Adaptec 72405 card (have about 20 drives connected).
My server is for media - I use Snapraid for parity so most of the drives are idle most of the time, hence I want spindown. A mix of seagate and WD 6/8/10TB drives.
I've switched the card to HBA, and have managed to get it to spin them down in Windows Server by adding the registry entry under Storport that people used to persuade the SAS2008 cards to spindown.
That works fine for about 10 minutes - it then starts spinning disks up randomly (normally one at a time). Sometimes they spin up and stay up, othertimes spin up and immediately stop (i've got a killawatt type power meter so I can hear the drive and see the consumption spike then drop back). I've used the tool drivepowerstate that shows Windows thinks they are all still spun down.
I'm assuming this is some kind of keep-alive in the driver and/or the card but hoping it's something that can be disabled - anyone seen similar/managed to fix this?