[mythtv-users] Using spindown with SCSI RAID5?

[George Mari]

Anyone out there had any success with spinning down SCSI disks in a 
software RAID5 array for power saving?

I tried to spin down one of my 4 disks in a RAID5 array, using the command:

sdparm --command=stop /dev/sdi

This spun the drive down (good), but it also kicked it out of the array. 
  (bad)

What I'm trying to do is just have it power down somehow after a certain 
time being idle, and then just spin up again when accessed without 
breaking the  but it seems that SCSI drives don't have all the power 
management options that PATA or SATA drives do.  (Or maybe just my 
particular SCSI drives don't have these features...)

I'd love to hear from anyone with specific experience with trying to do 
this with SCSI drives - thanks.