WD Blue 6TB Preclear Info

[ironicbadger]

Found some 6TB WD Blues at £160 a pop last week, thought I'd take the plunge seeing as Reds are still £200+... Here are my preclear results. I'm pleasantly surprised at their performance levels.

 

========================================================================1.15
== invoked as: ./preclear_disk.sh -c 3 /dev/sdb
== WDCWD60EZRZ-00GZ5B1   WD-WXN000000UPL
== Disk /dev/sdb has been successfully precleared
== with a starting sector of 1 
== Ran 3 cycles
==
== Using :Read block size = 1000448 Bytes
== Last Cycle's Pre Read Time  : 14:20:04 (116 MB/s)
== Last Cycle's Zeroing time   : 12:01:51 (138 MB/s)
== Last Cycle's Post Read Time : 26:39:05 (62 MB/s)
== Last Cycle's Total Time     : 38:41:55
==
== Total Elapsed Time 130:27:43
==
== Disk Start Temperature: 23C
==
== Current Disk Temperature: -->43<--C, 
==
============================================================================
** Changed attributes in files: /tmp/smart_start_sdb  /tmp/smart_finish_sdb
                ATTRIBUTE   NEW_VAL OLD_VAL FAILURE_THRESHOLD STATUS      RAW_VALUE
      Temperature_Celsius =   109     129            0        ok          43
No SMART attributes are FAILING_NOW

0 sectors were pending re-allocation before the start of the preclear.
0 sectors were pending re-allocation after pre-read in cycle 1 of 3.
0 sectors were pending re-allocation after zero of disk in cycle 1 of 3.
0 sectors were pending re-allocation after post-read in cycle 1 of 3.
0 sectors were pending re-allocation after zero of disk in cycle 2 of 3.
0 sectors were pending re-allocation after post-read in cycle 2 of 3.
0 sectors were pending re-allocation after zero of disk in cycle 3 of 3.
0 sectors are pending re-allocation at the end of the preclear,
    the number of sectors pending re-allocation did not change.
0 sectors had been re-allocated before the start of the preclear.
0 sectors are re-allocated at the end of the preclear,
    the number of sectors re-allocated did not change. 
============================================================================

[John_M]

Since these Blues have effectively replaced the Greens, I wonder what their Idle3 timer is set to and whether it can be adjusted with the WDIDLE3 utility.

[ironicbadger]

Since these Blues have effectively replaced the Greens, I wonder what their Idle3 timer is set to and whether it can be adjusted with the WDIDLE3 utility.

 

I'd be curious to know whether they include said Idle3 timer also... Can't find anything definitive on "the internet".

[JorgeB]

Default is 8s, same as Greens, wdidle3 still works to disable it.

[John_M]

Good to know the WDIDLE3 utility still works. I've always set Greens (and one Red that came from the factory set to 8 seconds) to 300 seconds.

[garycase]

Sounds like the Blue's are a reasonable choice.    I still tend to be a fan of the Reds, but at that price difference you can buy 5 Blue's for the price of 4 Reds ... effectively providing a "free" spare for every 4 drives 

 

It is nice to have confirmation that the WDIDLE utility still works on them.