New HDD - is it failing already?

[Ndaa75]

Just forked out GBP 550 for a G-Tech RAID Thunderbolt 3 8TB system, only been up & running a couple of days and wondered why the health is deteriorating? DriveDX is showing at 87.5% due to the spin up time.....

Any help appreciated.

 

[mdgm]

What brand and model disks are you using?

There are no SMART errors on those drives so they would appear healthy to me. If you start seeing reallocated sectors or much worse current pending sectors that would be a sign that the disk could be starting to fail.

 

[Ndaa75]

Hi & thanks for your post.
Drives are WD Ultrastar, 2 x 4TB in RAID 0.

 

[mdgm]

The Ultrastar is an enterprise disk, I think. RAID-0 is good if you need performance but note that with RAID-0 if a disk fails all data on the RAID-0 volume using that disk is lost. So with a RAID-0 volume spanning both disks if one disk fails you'll lose all the data.

 

[Ndaa75]

Yes, that's correct re RAID 0 that's why always a smart move to ensure you have multiple back up's of your important data - I currently have 2 other copies plus the cloud for the most important stuff.

Back to this 'issue' - seems to be the the way DriveDX interprets the non SMART data - this morning the disk shows the following.

Values are continuously fluctuating - so on this basis, better to take readings with a grain of salt but keep on eye on things.