SMARTCTL NOT OK

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SMARTCTL NOT OK

dinesh rajapaksha
Hi ,

I'm using below HDD.
But it cause sudden restarts to server blade.

smartctl -a /dev/sda  result is given below here.  It shows SMART Health Status: OK
But there are lots of uncorrected errors and delays.


Could you please let me know on what basis SMART Health Status become NOT OK ?



Vendor:               TOSHIBA
Product:              AL13SEB300
Revision:             0101
User Capacity:        300,000,000,000 bytes [300 GB]
Logical block size:   512 bytes
Logical Unit id:      0x50000394a80b1148
Device type:          disk
Transport protocol:   SAS
Local Time is:        Thu Nov 17 02:48:26 2016 UTC
Device supports SMART and is Enabled
Temperature Warning Enabled
SMART Health Status: OK
Current Drive Temperature:     41 C
Drive Trip Temperature:        65 C
Manufactured in week 10 of year 2013
Specified cycle count over device lifetime:  50000
Accumulated start-stop cycles:  11
Specified load-unload count over device lifetime:  200000
Accumulated load-unload cycles:  4
Elements in grown defect list: 1581
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:          0    11055         3         0          0      34590.725           3
write:         0        0         0         0          0      42897.670           0




Best regards //Dinesh


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Re: SMARTCTL NOT OK

Christian Franke
dinesh rajapaksha wrote:
> Hi ,
>
> I'm using below HDD.
> But it cause sudden restarts to server blade.
>
> smartctl -a /dev/sda  result is given below here.  It shows SMART
> Health Status: OK
> But there are lots of uncorrected errors and delays.

This is as expected. A device does not return a failed health status if
(only) Read/Write error occured. It usually will return a failed status
if the number of spare blocks for reallocation is below some threshold.


> Could you please let me know on what basis SMART Health Status become
> NOT OK ?

Smartctl will report a non OK health status if the device firmware
indicates failure in ASC/ASCQ from SCSI IE log page (if supported) or in
result of REQUEST SENSE command (see -H on smartctl man page).

Thanks,
Christian


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