Western digital chiarezza

[simon71]

Ciao a tutti, scusatemi in anticipo se rompo Mi sembra il caso doveroso di illuminare lo sterminato parco HDD della mitica casa americana. Credo che sarebbe di molto aiuto a quanti comprano a caso un HDD solo conoscendo il taglio, il modello e la tipologia... credo senza ombra di dubbio che la Western digital sia la marca in assoluto più densa di firmware, modelli, spesso simili all'apparenza, ma a volte diametralmente diversi.... chiedo a tutti del forum di aiutarmi e aiutarci a distrcarci nella jungla Wd.... Ad esempio: i Raptor negli ultimi 2 anni hanno subito 3 varianti: la prima...la mia che porta come firmware "00FLC0" ed è migliore della prima...e poi c'è l'ultima che è NCQ, ha 16 mega di buffer....insomma come il Raptor x... Il casino pazzesco arriva però con la serie Caviar....che al suo interno abbraccia almeno 4 tipologie..... Caviar, Caviar Se, Caviar Re, Caviar RE2.....e di queste ci sono i vari firmware, rappresentanti l'età....e tanto per dire....gli ultimi Wd non li trovi da nessuna parte in Italia...se non online....Credo sia indispensabile avvertire gli utenti che la maggior parte dei Wd che si comprano nei "negozi" sono spesso modelli già vecchi, fondi di magazzino....e l'acquirente li compra senza sapere che magari esiste una versione con Firmware migliore oppure meccanica migliore....Io su un benchmark americano ho letto che ad esempio già il mio Raptor è abissalmente diverso dalla prima serie da 74....forse sono stronzate...ma i dati mi parevano convincenti....e il sito dove l'ho letto pure... Chiedo a quantoi abbiano un Wd o semplicemente esperti di Hardware di postare, fare il punto della situazione...questo aiuterebbe molto e si eviterebbero inoltre discussioni triple, quadruple.....

grazie a tutti per l'attenzione.....e confido nella vostra competenza e pazienza...

[MM]

Il Raptor, essendo un disco neonato, è ovvio che ha subito modifiche in tempi molto brevi
Per il resto, a parte qualche incidente di percorso avvenuto nel passato (non WD comunque), non mi risulta che ci siano differenze sostanziali da un firmware all'altro
Le modifiche di firmware possono essere semplici modifiche dell'algoritmo di gestione degli spostamenti della testina o magari semplificazioni del chipset di controllo
Riguardo le varie serie di solito le differenze riguardano il campo di utilizzo (e relativo carico di lavoro) a cui preferibilmente sono destinati i dischi (home o server, per esempio)

L'utente ignaro che compra un disco, alla fine un disco lo compra, ci gioca o ci lavora ed è contento
L'utente che va a spulciare anche i firmware, rischia di perdere tanto di quel tempo che, quando si decide, compra un " disco vecchio"

[simon71]

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> Western Digital hard drives - deciphering the extended model #, For example, WD1600JB-00FUA0 = FDB 80GB platters

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kreativ
post Mar 4 2006, 04:41 PM
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Example: WD1600JB-00FUA0

The first letter after the '-00' is what I'm interested in.

C = 40GB platters, BB
D = 60GB platters, BB
E = 80GB platters, BB
F = 80GB platters, FDB

I haven't purchased a WD hard drive since "F", so have lost track. But now, G seems quite commonplace and I've even seen R. Has anyone kept track of what G and later letters represent?

This post has been edited by kreativ: Mar 4 2006, 04:42 PM
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888
post Mar 5 2006, 12:06 AM
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I don't think it to be so simple system there...

Look at the table below I compiled of models I know (not all older models included):
CODE

WD 84AA-00AFA0 (Dec1999)

WD 100BB-00AUA1

WD 100EB

WD 200AB

WD 200BB
WD 200BB-32CAA0

WD 200EB
WD 200EB-00CPF0
WD 200EB-00CSF0

WD 200JB
WD 200JB-00ENA0

WD 250XB

WD 300BB

WD 400AB

WD 400BB
WD 400BB-00FJA0
WD 400BB-22FJA1
WD 400BB-23FRA0
WD 400BB-00GFA0
WD 400BB-22HEA0
WD 400BB-00JHA0 22JHA0 55JHA0 75JHA0
WD 400BB-23JHA1
WD 400BB-00JHC0 08JHC0 22JHC0 55JHC0 75JHC0
WD 400BB-00JKA0 55JKA0 60JKA0
WD 400BB-00JKC0 55JKC0 60JKC0

WD 400BD-00JMA0 75JMA0
WD 400BD-00JMC0 08JMC0 75JMC0
WD 400BD-55JPA0 60JPA0
WD 400BD-55JPC0
WD 400BD-00LRA0 08LRA0 60LRA0
WD 400BD-00LRA1
WD 400BD-00LTA0 55LTA0 60LTA0
WD 400BD-55MTA1

WD 400EB
WD 400EB-00CPF0

WD 400JB
WD 400JB-00ENA0
WD 400JB-00JJA0 (2004)
WD 400JB-00JJC0
WD 400JB-55JLA0

WD 400JD
WD 400JD-00HKA0
WD 400JD-75HKA1
WD 400JD-00JNA0
WD 400JD-00JNC0
WD 400JD-55JRA0
WD 400JD-00LSA0
WD 400JD-00LUA0
WD 400JD-22MSA1

WD 400LB

WD 600AB

WD 600BB
WD 600BB-00CAA1 75CAA0
WD 600BB-00JHA0

WD 600EB

WD 600JB
WD 600JB-00CRA1

WD 600LB

WD 800AB-22CBA1

WD 800BB
WD 800BB-00DKA0 32DKA0
WD 800BB-00FJA0 22FJA1 75FJA1
WD 800BB-00FRA0
WD 800BB-00HEA0
WD 800BB-00JHA0 55JHA0 75JHA0
WD 800BB-00JHC0 22JHC0 23JHC0 40JHC0 55JHC0 58JHC0
WD 800BB-00JKA0 55JKA0 60JKA0
WD 800BB-00JKC0 55JKC0 58JKC0 60JKC0

WD 800BD-00JMA0 22JMA0 55JMA0
WD 800BD-00JMC0 22JMC0 55JMC0
WD 800BD-55JPA0
WD 800BD-55JPC0
WD 800BD-00LRA0 55LRA0
WD 800BD-00LRA1
WD 800BD-55LTA0 56LTA0
WD 800BD-55LTA1
WD 800BD-00MRA1
WD 800BD-55MTA1

WD 800EB
WD 800EB-00DJF0
WD 800EB-00JEF0
WD 800EB-11DJF0

WD 800JB
WD 800JB-22ETA0 (Mar2003)
WD 800JB-00FMA0
WD 800JB-00JJA0
WD 800JB-00JJC0 22JJC0 55JJC0
WD 800JB-55JLA0
WD 800JB-55JLC0

WD 800JD
WD 800JD-00HKA0
WD 800JD-00JNA0 75JNA0
WD 800JD-23JNA1
WD 800JD-00JNC0 22JNC0 55JNC0 75JNC0
WD 800JD-55JRA0 60JRA0
WD 800JD-00JRC0 55JRC0 60JRC0
WD 800JD-00LSA0 08LSA0 22LSA0 23LSA0 55LSA0 60LSA0 75LSA0
WD 800JD-00LSA1
WD 800JD-55LUA0 56LUA0 60LUA0
WD 800JD-55LUA1
WD 800JD-00MSA1 22MSA1 55MSA1
WD 800JD-55MUA1

WD 800LB

WD 800PB

WD1000BB

WD1200AB-00DYA0 22DYA0

WD1200BB
WD1200BB-00DWA0
WD1200BB-00GUA0 22GUA0 55GUA0
WD1200BB-00GUC0 22GUC0 55GUC0 88GUC0

WD1200JB
WD1200JB-00EVA0
WD1200JB-00GVA0
WD1200JB-00GVC0
WD1200JB-00REA0

WD1200JD
WD1200JD-00GBB0 (Jul2004)
WD1200JD-00HBB0 22HBB0
WD1200JD-00HBC0

WD1200JS-00MHB0 55MHB0
WD1200JS-22NCB1

WD1200PB

WD1200SB-01KBA0
WD1200SB-01KBC0

WD1200SD-01KCB0
WD1200SD-01KCC0

WD1200SS-01MLB0

WD1200YS-01MKB0

WD1600BB
WD1600BB-00DWA0
WD1600BB-00FTA0
WD1600BB-00GUA0 22GUA0 55GUA0
WD1600BB-00GUC0 22GUC0 55GUC0 56GUC0 58GUC0
WD1600BB-00RDA0 55RDA0

WD1600BS-55RPB1

WD1600JB
WD1600JB-00FUA0
WD1600JB-00GVA0 22GVA0 98GVA0
WD1600JB-00GVC0 22GVC0 40GVC0 55GVC0 98GVC0
WD1600JB-00REA0

WD1600JD
WD1600JD-00GBB0
WD1600JD-00HBB0 22HBB0 55HBB0 75HBB0
WD1600JD-00HBC0 22HBC0 55HBC0 56HBC0 75HBC0
WD1600JD-00KLB0

WD1600JS-00MHB0 22MHB0 55MHB0
WD1600JS-00MHB1 55MHB1 58MHB1
WD1600JS-00NCB1 22NCB1 55NCB1

WD1600KS-00MJB0

WD1600LB-55EDA0

WD1600PD-00FZB1

WD1600SB
WD1600SB-01KBC0

WD1600SD-01KCB0
WD1600SD-01KCC0

WD1600SS-01MLB0

WD1600YD-01NVB1

WD1600YS-01MKB0

WD1800BB

WD1800JB

WD2000AB-22DYA0

WD2000BB
WD2000BB-00DWA0
WD2000BB-00GUA0 14GUA0 22GUA0 55GUA0
WD2000BB-00GUC0 22GUC0 55GUC0 58GUC0 98GUC0
WD2000BB-00KEA0 55KEA0

WD2000BD-00KKB0

WD2000JB
WD2000JB-00EVA0 01EVA0 (Mar2003)
WD2000JB-00FUA0
WD2000JB-00GVA0 55GVA0 (Aug2004)
WD2000JB-00GVC0 22GVC0
WD2000JB-00KFA0 55KFA0

WD2000JD
WD2000JD-00GBB0
WD2000JD-00HBB0 22HBB0 55HBB0
WD2000JD-00HBC0 22HBC0 55HBC0
WD2000JD-00KLB0 22KLB0

WD2000JS-00MHB0 22MHB0 55MHB0
WD2000JS-58MHB1
WD2000JS-00MVB0
WD2000JS-00NCB1 22NCB1 55NCB1
WD2000JS-00PDB0 55PDB0

WD2000KS-00MJB0

WD2000SB-01KBA0

WD2500AB-00DYA0

WD2500BB
WD2500BB-22DWA0
WD2500BB-00GUA0 22GUA0 55GUA0
WD2500BB-00GUC0 22GUC0 55GUC0 58GUC0
WD2500BB-98FTA0

WD2500BS-55RPB1

WD2500JB
WD2500JB-00FUA0
WD2500JB-00GVA0 22GVA0 55GVA0 75GVA0
WD2500JB-00GVC0 22GVC0 55GVC0 56GVC0 57GVC0 58GVC0 98GVC0
WD2500JB-00KFA0
WD2500JB-00REA0

WD2500JD
WD2500JD-00FYB0 75FYB0 (Jun2003)
WD2500JD-00GBB0 22GBB0 50GBB0
WD2500JD-00HBB0 22HBB0 50HBB0 55HBB0 75HBB0 98HBB0
WD2500JD-00HBC0 22HBC0 50HBC0 55HBC0 56HBC0 57HBC0
WD2500JD-00KLB0

WD2500JS-00MHB0 22MHB0 55MHB0
WD2500JS-00MHB1 55MHB1 58MHB1 60MHB1
WD2500JS-00MVB1
WD2500JS-00NCB1 22NCB1 55NCB1

WD2500KS-00MJB0 22MJB0 55MJB0 (May..Jun2005)
WD2500KS-00MJB1
WD2500KS-22NDB0

WD2500PB
WD2500PB-55FBA0

WD2500PD
WD2500PD-07FZB0

WD2500SB
WD2500SB-01KBA0
WD2500SB-01KBC0

WD2500SD
WD2500SD-01KCB0 (Jun2004)
WD2500SD-01KCC0

WD2500SS-01MLB0

WD2500XB

WD2500YD-01NVB1

WD2500YS-01MKB0

WD3000BB-00KEA0 55KEA0

WD3000JB-00KFA0 22KFA0

WD3000JD-00KLB0 22KLB0 55KLB0

WD3000JS-00PDB0 55PDB0

WD3200BB-00KEA0 55KEA0 58KEA0

WD3200BD-00KKB0 55KKB0

WD3200JB-00KFA0 22KFA0 55KFA0 (22=Dec2004..Jan2005/00=Feb2005..Nov2005..)

WD3200JD-00KLB0 22KLB0 55KLB0 (22=Mar2005..Apr2005/00=Mar2005..)

WD3200JS-00PDB0 55PDB0

WD3200KS-00PFB0

WD3200SB-01KMA0

WD3200SD-01KNB0 (May2005)

WD4000KD-00NAB0 22NAB0 55NAB0 98NAB0 (Jun2005)
WD4000KD-55NSB2

WD4000YR-01PLB0 (Jul2005)

WD 360GD
WD 360GD-00FLA1
WD 360GD-00FLA2
WD 360GD-00FLC0
WD 360GD-00FNA0 (Mar2003) BB
WD 360GD-50GHA0 (May2003) FDB

WD 740GD
WD 740GD-00FLA0 (Nov2003..Feb2004..)
WD 740GD-00FLA1 50FLA1 75FLA1 (Jul2004)
WD 740GD-00FLA2 50FLA2
WD 740GD-00FLC0 50FLC0 (Nov2005..Dec2005..)
WD 740GD-00FLC2 41FLC2

WD1500ADFD-00NLR0 (Dec2005)

WD1500AHFD-00RAR0 (Dec2005)

WD 400UE
WD 400UE-00HCT0 22HCT0
WD 400UE-00KVT0
WD 400VE-00HDT0 75HDT0
WD 400VE-75HDT1
WD 400VE-00KWT0
WD 600UE-00HCT0 22HCT0
WD 600UE-00KVT0
WD 600VE
WD 600VE-00HDT0 75HDT0
WD 600VE-75HDT1
WD 600VE-00KWT0
WD 800UE-00HCT0 22HCT0
WD 800UE-00KVT0
WD 800VE
WD 800VE-00HDT0 75HDT0
WD 800VE-00KWT0
WD1000UE-00KVT0
WD1000VE-00KWT0
WD1200UE-00KVT0
WD1200VE-00KWT0

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888
post Mar 5 2006, 12:54 AM
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Some facts and some speculations (not complete):

Sample: WD3200JD-00KLB0
Formula: AAbbbbCD-eeFGHi

AA = WesternDigital

bbbb = Capacity in 100MB units (GBx10)

C = Cache(buffer) size and drive's purpose:
* Desktop drives: B=2MB, J=8MB, K=16MB
* Enterprise drives 7200rpm: S=8MB, Y=16MB
* Enterprise drives 10000rpm: G=8MB, A=16MB

D = Interface and some other specs:
* B=ATA, D=SATA150, S=SATA300, R=SATA150(RaidEdition2), H=SATA150(Window)

ee = Vendor code (probably):
* 00=general consumers, 01=general enterprise, 22=promotional(?),
* 07/08/11/14/23/32/40/41/50/55/56/57/58/60/75/88/98=unknown (of them 55 is pretty much used)

F = May be related to platters (needs more research)

G = ??? (needs more research)

H = Related to interface/firmware and something more (needs more research):
* A=ATA(Caviar over 100GB)/ATAandSATA(Caviar below 100GB), B=SATA(Caviar over 100GB), C=ATAandSATA(Caviar, newer updates), A/C/R=Generation(RaptorSATA), T=LaptopDrive

i = Firmware version (probably):
* 0/1/2=larger is newer (if the preceeding letter is same).

..................
So, I'm also interested if somebody could help with further deciphering these model codes...
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888
post Mar 5 2006, 01:24 AM
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One more speculation (absolutely no guarantee if I'm correct or not):

*These rare new sub-models...
WD1600JD-00KLB0
WD2000JD-00KLB0
WD2500JD-00KLB0
WD3000JD-00KLB0
...may very probably be using 107GB platters, PCB's and firmware originated from
WD3200JD-00KLB0

*The same can be true also for...
WD2000JB-00KFA0
WD2500JB-00KFA0
WD3000JB-00KFA0
...originating from
WD3200JB-00KFA0

This example provided is just very interesting because of the WD 160/200/250 hdd's were normally based on 80GB platters (and there are many such sub-code models existing if you look in the long table I posted above in this topic). Now looks like some production runs of them may have 107...125GB platters inside, so there can be big performance differences between sub-models in 160/200/250 GB categories! These 00KLB0/00KFA0 models of 200GB (or even 250GB) may have only 2 platters! But it may be also otherwise - these sub-models can be outlet for partially failed WD3200's which are reformatted to lower capacity (but even then they have HD platters and so also better performance)! WD Wonderland once again...

There are more such interesting exact matches in the long table...
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888
post Mar 7 2006, 04:27 AM
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CORRECTIONS AND ADDITIONS (still no complete deciphering):

WD has changed its model number system recently (from december 2005, very probably because of they are short of available letters!). The first new system models were the new Raptors (150 and 74 GB). The new official formula (as described in WD's Tech FAQ today) is:

Sample: WD1500ADFD-00NLR0
Formula: AAbbbbCDEF-ggHIJk

AA = WesternDigital

bbbb = Capacity in 100MB units (GBx10)

C = Form Factor :

A 3.5-inch
B 2.5-inch
C 1.0-inch

D = Business Unit / Drive Family :

A Desktop / WD Caviar
B Desktop / WD Protege
C Enterprise / WD Raptor
D Mobile / WD Scorpio
...and it's just mismatching...in reality there's:
D Raptor
H Raptor X (Clear Cover)

E = RPM / Buffer Size :

A 5400
B 7200
C 10000
D 4500
E 5400 (Single Platter)
F 10K/2MB Cache
G 10K/8MB Cache
H 10K/4MB Cache
J 7200/8MB Cache
K 7200/16MB Cache (Desktop)
L 7200 (Quiet Drive)
M 5400 (Fluid Dynamic Bearing Motor)
N 5400 Protégé (Fluid Dynamic Bearing Motor)
P 7200 8MB Cache(Quiet Drive)
R 10K/8MB Cache
S 7200/8MB Cache(Server/Enterprise)
T 7200/8MB Cache (Server/Enterprise Quiet Drive)
U 5400/2MB Cache (Mobile)
V 5400/2MB Cache (Mobile)
W 3600 (Mobile)
X 4200 (Mobile)
Y 7200/16MB Cache (Server/Enterprise)
Z 7200/2MB Cache (End Of Life)
...and again another mismatching...in reality there's:
F 10K/16MB Cache

F = Interface Connector(Used for standard Retail Drive Kits only) :

A ATA/66 with 40 pin IDE connector
B ATA/100 with 40 pin IDE connector
C FireWire 1394a
D Serial ATA 1(150 MB/s) with 22-pin Serial ATA connector
E ATA/133 with 40-pin EIDE connector
F Fibre Channel/40-pin
G Ultra2/68-pin
H Ultra2/80-pin
J 160m/68-pin
K 160m/80-pin
L Ultra3/68-pin
M Ultra3/80-pin
N Ultra SE/50-pin
P CF+II with 50-pin connector
R RE2/RAID Edition 2
S Serial ATA II (300MB/s) with 22-pin Serial ATA connector
W Home Entertainment A/V
X-Z Reserved for future Home Entertainment A/V

*Now the unofficial part follows...
I have digged up the following:

gg = OEM vendor code :

00 general consumer
01 general enterprise
22 promotional sample (?)
23 IBM
53 Gateway
60 Compaq
71 HP
75 Dell
11 Dell/Gateway (?)
07/08/14/32/40/41/50/55/56/57/58/88/98 unknown yet

H = General construction (platters, motor, etc) :

C 40GB platters / BallBearings
D 66GB platters / BallBearings
E 83GB platters / BallBearings
F 83GB platters / FDB
G 83GB platters / FDB / SilentSeek (?)
H ?
J ?
L ?
M 80GB new platters / SATA2 / no NCQ
N 80..107GB new platters / SATA2 / with NCQ (?)
K 107GB new platters
P 107GB new platters / SATA2 or RE2 (?) / with NCQ (?)
R ?
...these are mostly speculations so far

I = ???

J = Something related to interface/firmware(?) :

A ATA(Caviar over 100GB) / ATAandSATA(Caviar below 100GB)
B SATA(Caviar over 100GB)
C ATAandSATA(Caviar, newer generations/updates)
A/C/R Generation(Raptor SATA)
T Laptop Drive
...again, speculations

k = Firmware version or generation (?) :

0/1/2/3/4 of which larger is newer (if the preceeding letter is the same)

This post has been edited by 888: Mar 7 2006, 04:29 AM
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888
post Mar 7 2006, 11:18 PM
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CORRECTIONS AND ADDITIONS - VOL.2 (still not complete deciphering):

Sorry for copying this information once again but unfortunately the Wonderland WD Customer Help page http://wdc.custhelp.com/cgi-bin/wdc....hp?p_faqid=248 where I got the information yesterday was (and still is) in fact badly messed up - there's probably some pre-final release of the new numbering system mixed up with old and new together...

Now here below the model code's base part of is very probably correct, finally! It is re-typed from the document http://www.wdc.com/en/library/2579-001028.pdf which seems to be more logical and matching. So here is the WD's brand new drive model number system deciphering but... unfortunately without the most interesting suffix part of! But there's indication that the suffix is described in WD's in-house use document 2096-000101 (may be 2096-000101.pdf). My attempts to find it somewhere online, even with web search engines, were unsuccessful...

WD has changed its model number system recently (from december 2005, very probably because of they were short of available letters!). The first new system models were the new Raptors (150 and 74 GB). The new official formula is:

Sample: WD1500ADFD-00NLR0
Formula: AAbbbbCDEF-ggHIJk

AA = Company Initials

WD - Western Digital

bbbb = Capacity

2...4 digits - supports up to 999.9

C = Capacity Unit / Form Factor

A - GB / 3.5-inch
B - GB / 2.5-inch
C - GB / 1.0-inch

D = Business Unit / Brand

A - Desktop / WD Caviar
B - Enterprise / WD Caviar RE
C - Desktop / WD Protege
D - Enterprise / WD Raptor
E - Mobile / WD Scorpio
H - Enthusiast / WD Raptor
J - Mobile / WD Scorpio (free fall sensor (FFS))

E = RPM / Buffer Size or Attribute

A - 5400 rpm / 2 MB cache
B - 7200 rpm / 8 MB cache
F - 10000 rpm / 16 MB cache
G - 10000 rpm / 8 MB cache
J - 7200 rpm / 8 MB cache
K - 7200 rpm / 16 MB cache
V - 5400 rpm / 8 MB cache (mobile)
X - 4200 rpm / 2 MB cache (mobile)

F = Interface / Connector

A - ATA66 / 40-pin IDE
B - ATA100 / 40-pin IDE
C - ATA..... / 33-pin connector (zero insertion force (ZIF))
D - SATA150 / 22-pin SATA
E - ATA133 / 40-pin IDE
S - SATA300 / 22-pin SATA

*Now the unofficial and not complete part follows...
I have digged up the following:

gg = OEM vendor code

00 - general consumer market
01 - general enterprise market
22 - promotional sample (?)
23 - IBM
53 - Gateway
60 - Compaq
71 - HP
75 - Dell
11 - Dell/Gateway (?)
07,08,14,32,40,41,50,55,56,57,58,88,98 - unknown yet

H = General construction (platters, motor, etc)

C - 40 GB platters / BallBearings
D - 66 GB platters / BallBearings
E - 83 GB platters / BallBearings
F - 83 GB platters / FDB
G - 83 GB platters / FDB / SilentSeek (?)
H - ?
J - ?
L - ?
M - 80 GB new platters / SATA2 / no NCQ
N - 80..107 GB new platters / SATA2 / with NCQ (?)
K - 107 GB new platters
P - 107 GB new platters / SATA2 or RE2 (?) / with NCQ (?)
R - ?
(...these are mostly speculations so far...)

I = ???

J = Something related to interface/firmware(?)

A - ATA (Caviar over 100GB) / ATA,SATA (Caviar below 100GB)
B - SATA (Caviar over 100GB)
C - ATA,SATA (Caviar, newer generations/updates)
A,C,R - Generation (Raptor SATA)
T - Laptop Drive
(...again, speculations...)

k = Firmware version or generation(?)

0,1,2,3,4 - version (larger number is newer, if the preceeding letter is the same)
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post Mar 7 2006, 11:28 PM
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sorry, one bad typo (of course, 2 MB cache there):

E = RPM / Buffer Size or Attribute

B - 7200 rpm / 2 MB cache
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kreativ
post Mar 14 2006, 05:25 PM
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Interesting info 888. cool.gif

QUOTE
H = General construction (platters, motor, etc)

G - 83 GB platters / FDB / SilentSeek (?)
H - ?

H is, for sure, Ball Bearing. I purchased a WD1600JB-00H thinking it would be FDB. But it was ball bearing...with 80GB (83GB?) platters I presume. H was out well before G was available, and is one of the oddities as far as this letter is concerned.

This post has been edited by kreativ: Mar 14 2006, 05:26 PM
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starling
post Mar 15 2006, 11:15 AM
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CODE

WD 2000 B B - 32 AA A0
1 2 3 4 5 6 7

1. WD - Western Digital

2. Capacity

3. Rotational speed
letters A-E are assigned to EIDE
A - 5400 rpm (WD Caviar 5400)
B - 7200 rpm (WD Caviar 7200)
C - 10'000 rpm
D - 4500 rpm (WD Spartan)
E - 5400 rpm (WD Protege)
letters F-Z are assigned to SCSI and specialized HDDs
F - 10'000 rpm, 2 Mb cache
G - 10'000 rpm, 8 Мбт cache
H - 10'000 rpm, 4 Мбт cache
J - 7200 rpm, 8 Мбт cache
K - 7200 rpm (Performance)
L - 7200 rpm (Fluid Bearing Motor)
M - 5400 rpm (Fluid Bearing Motor)
N - 5400 rpm (WD Protégé - Fluid Bearing Motor)
P - 7200 rpm, 8 Mb cache (Fluid Bearing Motor)
Q-Z - reserved

4. Interface
letters A-E are assigned to EIDE
A - ATA-66
B - ATA-100
C - FireWire
D - Serial ATA
E - ATA-133
letters F-V are assigned to SCSI and specialized HDDs
F - Fibre Channel
G - Ultra2 (68 pin)
H - Ultra2 (80 pin)
J - Ultra160 (68 pin)
K - Ultra160 (80 pin)
L - Ultra3 (68 pin)
M - Ultra3 (80 pin)
N - Ultra SE (50 pin)
P-V - reserved
A/V product for home use, letters W-Z
W - A/V for home use
X-Z - reserved

5. Customer ID
00 - Generic
10 - DEC
11 - WD Protégé OEM
12 - Intel
18 - Dell
23 - IBM
25 - Toshiba
28 - Microsoft
32 - Reseller
35 - WD Spartan
40 - Apple
44 - WD Protégé Other
60 - Compaq
80 - Motorola
90 - Distribution Only
95 - Tektronix
99 - Boeing

6. Family ID.
Reflects structural differences between drives. Useful for parts replacement and firmware matching.

7. Customer Configuration Code - CCC
X0, X1, X2… - device version for testing purposes
A0 – first high-quality sample
B0, B1, C0, C1 – models for specific resellers
Ax, Bx, Cx, Ex - WD Caviar
Fx, Gx, Hx, Jx - WD Protégé
Kx, Lx, Mx, Nx - WD Performer
X0 – pre-production phase
A0 – production phase, then the revision number grows: first from 0 to 9, then letters follow (except for letters I, O and Q)


--------------------
Yarek Starling
Data recovery lab in Canada
Partners are welcome!
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888
post Mar 15 2006, 09:20 PM
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Thanks, starling for additional information! Some more secret details cleared now. Although your table seems to be a more older revision, we could now get the best summary by putting my latest edition (and pre-latest edition for drives released before 12/2005) plus your information together...

Still, there's some things remained open:
- That most interesting part of the subcode (Family ID deciphering, two letters after Customer ID);
- The following customer ID's: 07,08,14,41,50,55,56,57,58,88,98
- For Customer Configuration Code there's some mismatching, in example I have noticed the B0 has recently been not "model for specific resellers" but just "first high-quality sample - SATA version".

Generally, WD's model code system is pretty mess and they have changed it too, which makes that even more confusing.
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Sono daccordo con te, ma questa discussione credo possa aiutare....
Non è bello spendere 200 euri per un Raptor Wd740GD e poi scoprire che è uscita la versione successiva che è NCQ ed ha 16 mega di buffer....alla stessa cifra!! Comprare (e ti sto parlando dei migliori "negozi" di Hardware di milano, non i grandi magazzini dell'elettronica...ci siamo capiti ) senza che nessuno ti dica alla domanda "Vorrei un HD della Western".....che modello? Che Firmware...guardi mi dispiace noi i nmagazzino abbiamo solo la versione Wd2500Js, ma ce ne sono altre compresa una versione enterprise....con firmware diversi.... Questo è quello che mi piacerebbe sentirmi dire quando tiro fuori tanti soldini che guadagno onestamente....Poi possiamo discutere all'inifinito sul fatto che l'NCQ o i 16 ega sono caxxate...che nella maggior parte dei casi non cambia una cippa beata...ma tant'è...già che ci sono...
Si parla tanto di collo di bottiglia dei moderni PC e poi mi pare che gli stessi addetti ai lavori privilegino altre parti hardware....mah...

Cordialmente e senza polemica...