This drive is part of a 2 x RAID 0. Drive had significant amount of bad sectors on 3 heads. Completed a head swap. Drive has issues initializing but gets there after 5-10 seconds. Whenever we try to image the drive, it images for a while and then all status lights apart from BSY come on and the drive shuts down. This happens in both PC3K and DDI. We thought the slow initialization may be due to incompatible heads so tried second set. Exactly the same issues. Tried different board, same issues. After the drive shuts down it will not power up again, at least BSY status light will not show, but 5v and 12v status lights do illuminate. If we leave the drive for about 1 hour, the drive boots back up again and we go through the same cycle.

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HDD, SSD, Flash and RAID Data Recovery
Founder of The Data Recovery Professionals Group

Is it getting hot?

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http://www.northwind.gr
SandForce SSD Recovery
Ransomware Reverse Engineering - NoMoreRansom! partners

No its not.

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HDD, SSD, Flash and RAID Data Recovery
Founder of The Data Recovery Professionals Group

If drive cloning normally (not tech-mode, no strange sounds etc.) so reduce cloning speed (to PIO mode) or/and requested data block, send hard reset (with corresponding timings) for any cloning delay.

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http://www.alfadatarecovery.com

Try to read via utility and see if the problem persists.
If not, it's a matter of tweaking.

_________________
http://www.northwind.gr
SandForce SSD Recovery
Ransomware Reverse Engineering - NoMoreRansom! partners

Done both of those things. Can't seem to get past the first couple of minutes...

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HDD, SSD, Flash and RAID Data Recovery
Founder of The Data Recovery Professionals Group

So it's not normal. If I remember correctly there was applied idle process in some FW. There should be solution for that.

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http://www.alfadatarecovery.com