[OpenIndiana-discuss] Fwd: ZFS 0+1 across disparate drives

[James]

On 01/12/2021 23:33, jason matthews wrote:

> Green drives have this nasty habit of spinning down to save power and be

$ man smartctl
...
    apm[,N|off] - [ATA only] Gets/sets the Advanced Power Management
    (APM) feature on device (if supported).  If a value between 1
    and 254 is provided, it will attempt to enable APM and set the
    specified value, 'off' disables APM.  Note the actual behavior
    depends on the drive, for example some drives disable APM if
    their value is set above 128.  Values below 128 are supposed to
    allow drive spindown, values 128 and above adjust only head-
    parking frequency, although the actual behavior defined is also
    vendor-specific.
...


WD-Green?