SMART check for OpenZFS Disks?

SoftRAID will collect extended SMART data from any bus/connection that supports extended SMART. So yes.

Is that yes you can program it or yes SoftRaid should report it now?

I asked the question because SoftRaid is not reporting any SMART information for the drives in my ZFS pool; it recognizes the disks and reports their s/n but no SMART data. SoftRaid doesn't recognize the format of the ZFS drives but that is ti be expected. But I thought it would recognize SMART data. SoftRaid does report SMART data for my other non-ZFS drives.

I forgot to mention that my ZFS formatted drives are on the same bus (eSata) as some of my non-ZFS drives.

I would have to test this, but unless ZFS is "hiding" the disks behind a media object, SoftRAID should see the raw disk and report SMART status. (if the SATA bus is passing extended SMART data - most eSATA buses do not pass this data along)

I created a test ZFS volume. All SMART parameters are indeed available for the disks in the volume.

Check that this eSATA bus actually passes extended SMART data.

I created a test ZFS volume. All SMART parameters are indeed available for the disks in the volume.

Check that this eSATA bus actually passes extended SMART data.

It must because SoftRaid reports SMART info for two other HFS formatted drives on the same bus/enclosure.

Then I am stumped! ;-)

Over Thunderbolt, the ZFS disk reports SMART as normal. Perhaps the ZFS driver uses eSATA in such a way that SMART is no longer passed. Check on a ZFS forum if this is a known issue or not.

Then I am stumped! ;-)

Over Thunderbolt, the ZFS disk reports SMART as normal. Perhaps the ZFS driver uses eSATA in such a way that SMART is no longer passed. Check on a ZFS forum if this is a known issue or not.

Ok. I'll check there. BTW, I just tried SMART Utility (Volitran) which uses Smartmontools and it reports SMART data. Do you use Smartmontools?

No, we use our own SMART query.

No, we use our own SMART query.

I destroyed one of my ZFS pools and now SoftRaid displays the Smart data. However, of the 5 x 4TB disks MacOs successfully formatted two them but refuses to format the other three. Of those three SoftRaid will initialize 2 of them and accept them for Raid arrays but they show only 134 MB svailable! The 3rd one won't even initialize under SoftRaid. I have tried booting into Snow Leopard an ElCap and even using Disk Warrior but no go with formatting or repairing them. Now what?

I think the ZFS driver is holding on to the disks.

Connect the drives to another computer that does not have ZFS installed. Then you can initialize them.
(or uninstall ZFS on this computer)

When you going to add ZFS? it is important for all us who grew up on the command line!