I'm busy replacing my 3 and 6TB disks with 8TB red's. Very happy with the drives.
Have a question for other owners:
My 3 and 6TB red drives are set to spindown using hdparm. Once they are in standby mode I can query them with, for example smartctl -a /dev/xxx, without waking them up. If its in standby mode it stays in standby
The 8TB reds are different. When they are in standby mode a smartctl -a query wakes them up and brings them to the active/idle state.
I already found that smartctl -i -l scttempsts /dev/xxx gives me the output I need for my scripts without waking up the 8TB drives. It doesnt help with normal smart monitoring. Once that runs the disks spin up.
Can anyone confirm that they have the same behaviour with their 8TB reds.
Quick test would be
hdparm -y /dev/xxx to put the drive into standby
(use lowercase y, not -Y, the capital Y puts the drive to Sleep which is more difficult to get out of)
Then hdparm -C /dev/xxx to confirm the drive is in standby mode
Then run smartctl - a /dev/xxx to get the smart data
and last hdparm -C /dev/xxx to confirm the disk is running or in standby by.
For reference I'm using a Supermicro sc847 chassis with single port sas expanders and a LSI9207 controller.
