6TB Seagate Exos SAS - $46

kpfleming

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Dec 28, 2021
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I have nowhere near enough patience to spend 3+ days running badblocks on 4 drives, just to have to do it again... so I went ahead and put them into service. I have plenty of redundancy and a spare in the pool, plus lots of backups, so it's an acceptable risk.

The seven drives I've got running have 67, 11126, 44, 67, 4289, 57, and 33 PoH.
 
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nabsltd

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Jan 26, 2022
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Two of the drives I received had 80-odd hours, and the other four were just over 10K hours each. Since I've got drives in my arrays with 100K hours, I'd still consider them all "new".

Running badblocks on all drives (parallel), now that my Fujitsu CP400i has been cross-flashed to a 9300-8i.
 
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kpfleming

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Dec 28, 2021
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Comparing the power requirements against my WD40EFRX drives, the 6TB Exos don't draw much more except under heavy load, and my system never really has them under heavy load.
Just following up on this: the old configuration was 5x4TB WD Red SATA, and my UPS reported 36% usage when the drives were fairly idle. The new configuration is 8x6TB Seagate Exos SAS, and the UPS reports 44% usage when the drives are fairly idle.

Since it is a 750VA UPS, this is an increase of approximately 60 watts, and in return I have more than doubled the raw storage capacity.
 
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wildpig1234

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nice to finally see much less than $10 per TB! Hopefully this will trickle to the higher capacity ones soon
 
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UhClem

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Just following up on this: the old configuration was 5x4TB WD Red SATA, and my UPS reported 36% usage when the drives were fairly idle. The new configuration is 8x6TB Seagate Exos SAS, and the UPS reports 44% usage when the drives are fairly idle.

Since it is a 750VA UPS, this is an increase of approximately 60 watts, and in return I have more than doubled the raw storage capacity.
Probably only an increase of ~40 watts, since a (typical) 750VA UPS is ~500watts.
(I'm making the same accuracy/linearity assumption that you did, regarding the % readout of your UPS.)
 
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kpfleming

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One of the drives I purchased has failed:
Code:
=== START OF READ SMART DATA SECTION ===
SMART Health Status: SERVO IMPENDING FAILURE SEEK ERROR RATE TOO HIGH [asc=5d, ascq=43]

Grown defects during certification <not available>
Total blocks reassigned during format <not available>
Total new blocks reassigned = 87
Power on minutes since format <not available>
Current Drive Temperature:     34 C
Drive Trip Temperature:        60 C

Accumulated power on time, hours:minutes 2829:50
Manufactured in week 35 of year 2018
Specified cycle count over device lifetime:  10000
Accumulated start-stop cycles:  75
Specified load-unload count over device lifetime:  300000
Accumulated load-unload cycles:  31079
Elements in grown defect list: 365

Vendor (Seagate Cache) information
  Blocks sent to initiator = 678688
  Blocks received from initiator = 1972664
  Blocks read from cache and sent to initiator = 16694
  Number of read and write commands whose size <= segment size = 856
  Number of read and write commands whose size > segment size = 5

Vendor (Seagate/Hitachi) factory information
  number of hours powered up = 2829.83
  number of minutes until next internal SMART test = 17

Error counter log:
           Errors Corrected by           Total   Correction     Gigabytes    Total
               ECC          rereads/    errors   algorithm      processed    uncorrected
           fast | delayed   rewrites  corrected  invocations   [10^9 bytes]  errors
read:      30953        1         0     30954          1          0.345           0
write:         0        0        19        19         95          3.023           0
verify:       28        0         0        28          0          0.002           0

Non-medium error count:      293
I purchased ten so I'd have spares; one of the spares has taken over for this one already. Given the type of failure reported here I think this drive is dead-dead, there's no point in trying to reformat or rehabilitate it.
 
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Samir

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Jul 21, 2017
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One of the drives I purchased has failed:

I purchased ten so I'd have spares; one of the spares has taken over for this one already. Given the type of failure reported here I think this drive is dead-dead, there's no point in trying to reformat or rehabilitate it.
I'd throw it in the freebies thread versus trashing it as I'm sure someone would spend a bit of time refurbing it for some use. I still have a 20GB WD IDE drive that seems to have a head failed so only 10GB is good and it's still running as long as I don't try to use the other 10GB. ;)