Drive mysteries during burn-in

[rfakhrai]

I have 6x4TB WD Reds, just out of the box, and I'm burning them in per the thread in the How-To section. After I had started badblocks on them all simultaneously, I noticed that ada0 through 4 were running at about 150MB/s but ada5 was around 70. I chalked it up to the C226 chipset not being able to saturate all the SATA lanes equally. But after about 37 hrs, the other drives are on the read/compare portion of pass 3 and ada5 has exited badblocks with no message after finishing the write portion of pass 1. So now I'm running a long SMART test on ada5, although previous tests came up with no errors.

So what's going on with ada5? I have an ASRock Rack E3C226D2I motherboard, is the SATA controller not working for that port? Is there a log that badblocks writes to so I can figure out why it exited silently? And finally, is the drive just bad? Thanks in advance.

 

[Robert Trevellyan]

Any chance you did the non-destructive write test on ada5 by mistake? By default that does only one pass.

 

[rfakhrai]

No I used the command identical to the other drives. Also, it never even finished pass 1, exited after the write phase had hit 100% without moving on to the read/compare phase.

 

[SweetAndLow]

Run smart tests and rerun the badblock tests. See if behavior repeats.

 

[Ryan Allen]

Did everything go well? I'm getting ready to buy my rig and I'm doing all the homework I can think of before I start in!