Hey
Recently I bought anothere WD20EARS-00MVWB0. What was strange is that my first WD20EARS-00MVWB0 report that AAM feature is SUPPORTED but my new WD20EARS-00MVWB0 report that it’s NOT SUPPORTED.
I tried enabling it via alot of programs (hdTune, hdScan…) but it don’t save my setting because feature is NOT SUPPORTED.
Did WD recently diasbled AAM in newest WD20EARS-00MVWB0?
check the firmware versions of both drives.
Both got same: 51.0AB51
The disk /dev/sdd firmware is 50.0AB50 (WD20EARS-00MVWB0):
/dev/sdd:
acoustic = 254 (128=quiet … 254=fast)
The disk /dev/sde firmware is 51.0AB51 (WD20EARS-00MVWB0):
/dev/sde:
acoustic = 254 (128=quiet … 254=fast)
For example, /dev/sda is an OCZ Vertex2 SSD, so it is not supported:
/dev/sda:
acoustic = not supported
Now, i diplayed the DCO info on the drives.
/dev/sdd:
DCO Revision: 0x0002
The following features can be selectively disabled via DCO:
Transfer modes:
udma0 udma1 udma2 udma3 udma4 udma5 udma6
Real max sectors: 18446744073321613488
ATA command/feature sets:
security AAM HPA
SATA command/feature sets:
NCQ interface_power_management SSP
/dev/sde:
DCO Revision: 0x0002
The following features can be selectively disabled via DCO:
Transfer modes:
udma0 udma1 udma2 udma3 udma4 udma5 udma6
Real max sectors: 18446744073321613488
ATA command/feature sets:
security AAM HPA
SATA command/feature sets:
NCQ interface_power_management SSP
Well, the OCZ SSD firmware does not report valid/correct info:
/dev/sda:
DCO Revision: 0x0000 – unknown, treating as 0002
The following features can be selectively disabled via DCO:
Transfer modes:
Real max sectors: 1
ATA command/feature sets:
Check that the feature AAM (Automatic Acoustic Management) is disabled in the DCO of your disk.
From hdparm manual page:
--dco-identify
Query and dump information regarding drive configuration settings which can be disabled by the vendor or
OEM installer. These settings show capabilities of the drive which might be disabled by the vendor for
“enhanced compatibility”. When disabled, they are otherwise hidden and will not show in the -I identify
output. For example, system vendors sometimes disable 48_bit addressing on large drives, for
compatibility (and loss of capacity) with a specific BIOS. In such cases, --dco-identify will show that the
drive is 48_bit capable, but -I will not show it, and nor will the drive accept 48_bit commands.
I hope it helps.
hdparm --dco-identify, is not avaible on my hdparm (cygwin)
hdparm -M give for the first one 254, and for the NEW one 0.
When i want to set NEW one on 254 it gives me (using hdparm -M 254 /dev/sdc)
"/dev/sdc:
HDIO_DRIVE_CMD:ACOUSTIC failed: Input/Output error
acoustic = 0 (128=quiet … 254=fast)
You can boot from a livecd such as sysrescue (aprox 320 mb iso), from:
http://www.sysresccd.org/Main_Page
and check if AAM is disabled in the new drive’s DCO.
hdparm has other dco commands, but i never used them personally (read the manual page), for example:
–dco-restore and --dco-freeze
Here is a thread where a user has compared the features in a WD20EARS-00MVWB0 against a WD20EARS-60MVWB0:
Bit #9 of Word #83 of the ATA Identify Device information block indicates whether “the AAM feature set is supported”.
Bit #9 of Word #83 indicates whether “the AAM feature set is enabled”.
Word #94 indicates the “Current AAM value”. The “Vendor’s recommended AAM value” is reported in the high byte, and the “Current AAM value” in the low byte.
In the abovementioned thread, the WD20EARS-00MVWB0 did support AAM, but the WD20EARS-60MVWB0 did not. Both had 51.0AB51 firmware.
That would solve my problem if not fact that they both WD20EARS-00MVWB0.
the fun part is hdparm (via cygwin) made on both C1 Unsafe shutdown counter at count of 9 
- first I was sceard that my new hdd if failing, but then i check my old hdd, look at consol window count hdparm -M, and found out that the numer of them is same as C1 counter
I will check LiveCD today.
– CrystalDiskInfo —
New is 3, old is 1.
Model : WDC WD20EARS-00MVWB0
Firmware : 51.0AB51
Serial Number : WD-WMAZA26XXXXX
Disk Size : 2000.3 GB (8.4/137.4/2000.3)
Buffer Size : Unknown
Queue Depth : 32
# of Sectors : 3907029168
Rotation Rate : Unknown
Interface : Serial ATA
Major Version : ATA8-ACS
Minor Version : ----
Transfer Mode : SATA/300
Power On Hours : 1458 godzin
Power On Count : 217 count
Temparature : 30 C (86 F)
Health Status : dobry
Features : S.M.A.R.T., AAM, 48bit LBA, NCQ
APM Level : ----
AAM Level : 80FEh [ON]
– S.M.A.R.T. --------------------------------------------------------------
ID Cur Wor Thr RawValues(6) Attribute Name
01 200 200 _51 000000000003 Częstotliwość pojawiania się błędów podczas odczytu RAW
03 253 253 _21 0000000004A7 Czas potrzebny do “rozkręcenia” talerzy dysku
04 100 100 __0 0000000000DA Ilość cykli start/stop
05 200 200 140 000000000000 Ilość realokowanych sektorów
07 200 200 __0 000000000000 Częstotliwość błędów podczas pozycjonowania
09 _99 _99 __0 0000000005B2 Liczba godzin pracy dysku
0A 100 100 __0 000000000000 Liczba prób uruchomienia osi napędowej dysku
0B 100 100 __0 000000000000 Liczba prób kalibracji
0C 100 100 __0 0000000000D9 Llość skończonych operacji start/stop
C0 200 200 __0 000000000008 Ilość naprawionych cykli wyłączenia
C1 200 200 __0 0000000007BA Ilość cykli do tak zwanej “Landing Zone”
C2 120 111 __0 00000000001E Temperatury dysku (ogólna)
C4 200 200 __0 000000000000 Liczba remapowanych operacji
C5 200 200 __0 000000000000 Liczba sektorów niestabilnych (oczekujących na remapowanie)
C6 200 200 __0 000000000000 Ilość nie naprawionych błędów
C7 200 200 __0 000000000000 Liczba błędów CRC podczas pracy w trybie Ultra DMA
C8 200 200 __0 000000000000 Liczba błędów zapisu
– IDENTIFY_DEVICE ---------------------------------------------------------
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
000: 42 7A 3F FF C8 37 00 10 00 00 00 00 00 3F 00 00
010: 00 00 00 00 20 20 20 20 20 57 44 2D 57 4D 41 5A
020: 41 32 36 36 38 34 37 35 00 00 00 00 00 32 35 31
030: 2E 30 41 42 35 31 57 44 43 20 57 44 32 30 45 41
040: 52 53 2D 30 30 4D 56 57 42 30 20 20 20 20 20 20
050: 20 20 20 20 20 20 20 20 20 20 20 20 20 20 80 10
060: 00 00 2F 00 40 01 00 00 00 00 00 07 3F FF 00 10
070: 00 3F FC 10 00 FB 01 10 FF FF 0F FF 00 00 00 07
080: 00 03 00 78 00 78 00 78 00 78 00 00 00 00 00 00
090: 00 00 00 00 00 00 00 1F 17 06 00 00 00 44 00 44
0A0: 01 FE 00 00 74 6B 7F 61 41 23 74 69 BE 41 41 23
0B0: 40 7F 00 C2 00 C2 00 00 FF FE 00 00 80 FE 00 00
0C0: 00 00 00 00 00 00 00 00 88 B0 E8 E0 00 00 00 00
0D0: 00 00 00 00 00 00 00 00 50 01 4E E6 AB 5A 9A 65
0E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 1C
0F0: 40 1C 00 00 00 00 00 00 00 00 00 00 00 00 00 00
100: 00 21 00 00 00 00 00 00 00 00 00 00 00 00 00 00
110: 00 00 00 00 00 00 00 00 00 00 00 00 00 04 00 00
120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
190: 00 00 00 00 00 00 00 00 00 00 00 00 30 35 00 00
1A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1B0: 00 00 00 00 00 00 00 00 00 00 00 00 10 1E 00 00
1C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1D0: 00 00 00 00 00 01 10 00 00 00 00 00 00 00 00 00
1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 A7 A5
Model : WDC WD20EARS-00MVWB0
Firmware : 51.0AB51
Serial Number : WD-WMAZA43XXXXX
Disk Size : 2000.3 GB (8.4/137.4/2000.3)
Buffer Size : Unknown
Queue Depth : 32
# of Sectors : 3907029168
Rotation Rate : Unknown
Interface : Serial ATA
Major Version : ATA8-ACS
Minor Version : ----
Transfer Mode : SATA/300
Power On Hours : 41 godzin
Power On Count : 15 count
Temparature : 30 C (86 F)
Health Status : dobry
Features : S.M.A.R.T., 48bit LBA, NCQ
APM Level : ----
AAM Level : ----
– S.M.A.R.T. --------------------------------------------------------------
ID Cur Wor Thr RawValues(6) Attribute Name
01 200 200 _51 000000000000 Częstotliwość pojawiania się błędów podczas odczytu RAW
03 253 253 _21 00000000048E Czas potrzebny do “rozkręcenia” talerzy dysku
04 100 100 __0 000000000011 Ilość cykli start/stop
05 200 200 140 000000000000 Ilość realokowanych sektorów
07 200 200 __0 000000000000 Częstotliwość błędów podczas pozycjonowania
09 100 100 __0 000000000029 Liczba godzin pracy dysku
0A 100 253 __0 000000000000 Liczba prób uruchomienia osi napędowej dysku
0B 100 253 __0 000000000000 Liczba prób kalibracji
0C 100 100 __0 00000000000F Llość skończonych operacji start/stop
C0 200 200 __0 000000000009 Ilość naprawionych cykli wyłączenia
C1 200 200 __0 000000000067 Ilość cykli do tak zwanej “Landing Zone”
C2 120 115 __0 00000000001E Temperatury dysku (ogólna)
C4 200 200 __0 000000000000 Liczba remapowanych operacji
C5 200 200 __0 000000000000 Liczba sektorów niestabilnych (oczekujących na remapowanie)
C6 100 253 __0 000000000000 Ilość nie naprawionych błędów
C7 200 200 __0 000000000000 Liczba błędów CRC podczas pracy w trybie Ultra DMA
C8 100 253 __0 000000000000 Liczba błędów zapisu
– IDENTIFY_DEVICE ---------------------------------------------------------
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
000: 42 7A 3F FF C8 37 00 10 00 00 00 00 00 3F 00 00
010: 00 00 00 00 20 20 20 20 20 57 44 2D 57 4D 41 5A
020: 41 34 33 32 36 38 32 38 00 00 00 00 00 32 35 31
030: 2E 30 41 42 35 31 57 44 43 20 57 44 32 30 45 41
040: 52 53 2D 30 30 4D 56 57 42 30 20 20 20 20 20 20
050: 20 20 20 20 20 20 20 20 20 20 20 20 20 20 80 10
060: 00 00 2F 00 40 01 00 00 00 00 00 07 3F FF 00 10
070: 00 3F FC 10 00 FB 01 10 FF FF 0F FF 00 00 00 07
080: 00 03 00 78 00 78 00 78 00 78 00 00 00 00 00 00
090: 00 00 00 00 00 00 00 1F 17 06 00 00 00 44 00 44
0A0: 01 FE 00 00 74 6B 7D 61 41 23 74 69 BC 41 41 23
0B0: 40 7F 00 BB 00 BB 00 00 FF FE 00 00 00 00 00 00
0C0: 00 00 00 00 00 00 00 00 88 B0 E8 E0 00 00 00 00
0D0: 00 00 00 00 00 00 00 00 50 01 4E E6 01 23 7C 2D
0E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 1C
0F0: 40 1C 00 00 00 00 00 00 00 00 00 00 00 00 00 00
100: 00 21 00 00 00 00 00 00 00 00 00 00 00 00 00 00
110: 00 00 00 00 00 00 00 00 00 00 00 00 00 04 00 00
120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
190: 00 00 00 00 00 00 00 00 00 00 00 00 30 35 00 00
1A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1B0: 00 00 00 00 00 00 00 00 00 00 00 00 10 1E 00 00
1C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1D0: 00 00 00 00 00 01 10 00 00 00 00 00 00 00 00 00
1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 73 A5
The diffrent are only like on picture
I did run hdparm --dco-identify, and it claim that NEW one dont have AAM feature…
The main question is, did WD change AAM setting in drivers after 04.2011 ? Any confirms? Or is my hdd faulty ?
Did you run ‘hdparm --dco-identify’ on both drives and the new one did not list AAM (listed should mean that it can be enabled or disabled)?
My first WD20EARS is from 2010 and the second one is recent (3 months). In the weekend i will open the case and compare the labels since i did not notice anything strange. I think you should contact WD support and ask why 2 disks which are the same model and have the same firmware (and different labeling) have different features. The label from the ‘new’ lacks a lot of certifications (they are not on the label), one of them is “Serial ATA”.
I have reformatted your data here:
http://www.users.on.net/~fzabkar/HDD/WD20EARS/AAM.TXT
http://www.users.on.net/~fzabkar/HDD/WD20EARS/NO_AAM.TXT
The only significant difference appears to be in words 83, 86, and 94, ie those words which relate to AAM.
As for the the labels, I notice that there are differences in the DCM and DCX.
DCM - HARNHTJCA vs HANNHTJCA
DCX - 2M02V48W6 vs 6M07V2SW8
AIUI, the DCM (Drive Configuration Matrix) reflects differences in the mechanical components:
http://forum.hddguru.com/western-digital-what-dcm-t6488.html
The DCX, OTOH, appears to be related in some way to the model number suffix, 00MVWB0.
According to the following document, “the model number suffix (characters to the right of the dash following the model number) is only for in-house use. Refer to Change Administration’s Model Specification (document number 2096-000101)”.
Model Number Format for OEM and Distribution Channels:
http://www.wdc.com/wdproducts/library/Flyer/ENG/2579-001028.pdf
AFAICS, the “MVW” characters in the suffix relate in some way to the M02/M07, V48/V2S, and W6/W8 segments in the DCX (Drive Configuration X ???).
I wonder if these characters are in some way related to the individual firmware components?
FWIW, I know that in Seagate’s case, two drives can have the same overall firmware version while their individual firmware modules may differ.
For example, see this firmware update matrix for a Seagate Momentus XT:
http://www.users.on.net/~fzabkar/HDD/AN-SD24.TXT
Note that the SD22 firmware for the ST93205620AS model has 3 different sets of firmware components:
AN150C.SDM2.AP049N.SD22.C025
AN150C.SDM2.AP0A9N.SD22.C025
AN15AC.SDM2.AA9N00.SD22.CA24
AIUI, the C025 and CA24 components are the servo modules. I don’t understand the others.
I suspect that the M02/M07, V48/V2S, and W6/W8 numbers may be WD’s firmware components, but this is only wild speculation on my part.
I did run --dco-identify on both, on report AAM other dont.
I contact WD but In replay i get something like:
“interesting, I send your mail foward, if any news about it, we will let you know”
Great, but I have 1tb of 2tb avaible copied on that hdd, and didnt delete te orginal one. I would like to know If I can’t work on it or can I.
So if above confirmation are correct - this is ONLY my hdd problem, and not WD changing configuration - Mayby firmware fix will be avaible - would be the best option.
In replay from Support i got information that this could be a FAKE WD! can someone confirm current STICKER on WD from 2011 ?!
Gore_ wrote:
In replay from Support i got information that this could be a FAKE WD! can someone confirm current STICKER on WD from 2011 ?!
Both my WD10EARS from Jan 2010 and my WD10EADS from Feb 2009 have the same (or similar) stickers to your “with AAM” drive. I’ve never seen (or bought) a WD drive that has the missing certifications that your “without AAM” drive shows. Now, WD would have to answer whether that proves the one is fake, because my drives were designed and sold for North America, so you’d expect them to have the CSA markings and all that… I don’t know whether legit WD drives sold in other markets carry the full labelling, or have different stickers, because I’ve never bought one.
I checked your warranty status here:
http://websupport.wdc.com/warranty/serialinput.asp
After selecting Poland as the country, the warranty expiry dates for each drive are 25 Dec 2013 and 23 May 2014.
These are 1 year and 1 month after their respective manufacturing dates, so that part looks OK.
I would now compare the YYWW or YWW (Year / Week) date codes on the chips on the PCBs. There may also be a YYWW or WWYY date code on the PCB itself.
If you post detailed photos or scans of the component sides of each PCB, then I can help you identify the relevant markings.
Could you tell me where it is ?
This is from NEW one
The sticker on the PCB identifies the PCB as “2061-771698-802”.
There is similar number on the PCB at the left side – “2060-771698-002”.
The R/N number on the label is 771698. Elsewhere, amongst the certification symbols, is “WDT-1698”. Your old drive has “WDT-771698(B)”.
The above would suggest to me that the board is a match for the label.
I can’t recognise any date codes – they would be on the chips on the other side of the board. That said, I do see what looks like a partial date code (113) at the top right. This could be week 13 of 2011 which would be just before the manufacture date of 23 April 2011.
BTW, in my previous post I should have said that the warranty period is 3 years and 1 month after date of manufacture, not 1 year.
Im waiting for official WD respond about missing SATA/Other about being FAKE or not.
WD wrote that VALID WD20EARS should have SATA sticker on them and AAM function. Im waiting for confirmation for EU region…
If so then we have a problem with FAKE HDDs!
fzabkar, its not 113 but T13. on my replaced hdd with same stiker i have T5
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