Storage Solutions Interpreting Hard Drive Model Numbers

thexfactor

thexfactor

Insanely Awesome!!
Skilled
Thought it would be useful to know the way to interpret the Hard Disk model numbers used by various manufacturers

Hitachi

Hitachi Global Storage introduced a new model numbering system in the 2nd quarter of 2003, starting with the Hitachi Travelstar 7K60, Hitachi Travelstar 5K80, and Hitachi Deskstar 7K250 drives. (Models released before these drives use the previous IBM legacy model numbering system.) The following legend describes the new model numbers:

H F P SP TC MC x Z IF x B x

Where: H = Hitachi
F = Product Family:
D = Deskstar
C = CinemaStar
T = Travelstar
U = Ultrastar
M = Microdrive
E = Endurastar
P = Series prefix:
S= Standard (default, if no series name prefix)
C = Compact
J/N = Endurastar Temperature Range
E = Enh. Availability (24x7)
T = Differentiator between two models with the same name (T7K250)
SP = Speed, expressed in Revolutions Per Minute (rpm):

36 = 3600 rpm
42 = 4200 rpm
54 = 5400 rpm
72 = 7200 rpm
10 = 10,000 rpm
15 = 15,000 rpm
TC = Top capacity available for a particular drive release:
25 = 250GB (first two significant digits)
18 = 180GB
etc...
M = Unique model code
x = Unique code
Z = z-Height:

L = 1"
7 = 7 mm
9 = 9.5 mm
5 = 5 mm
8 = 8 mm
IF = Interface:
AT = ATA
16 = Ultra 160, 68 pin
18 = Ultra 160, 80 pin
36 = Ultra 320, 68 pin
38 = Ultra 320, 80 pin
F2 = Fibre channel 2GB
F4 = Fibre channel 4GB
SA = Serial-ATA 1,5 GB /s
A3 = Serial-ATA 3 Gbit / s
SS = Serial-attached SCSI
CF = CF2 pin
CE = ATA (ZIF Connector)
CA = CE-ATA
CM = ATA on MMC
B = Feature Code assigned by business unit (e.g., cache buffer size)
x = Unique code

Example:
HDS722516VLAT20 - Hitachi Deskstar 7K250:

H = Hitachi
D = Deskstar
S = Standard
72 = 7200 rpm
25 = 250GB full pop capacity
16 = Unique model code
V = Unique code
L = 1" form factor
AT = ATA
2 = Feature code (representing 2MB cache)
0 = Unique code

Thanx to Eazy :)
 
Added a few more ...

Seagate

Interpretation Schemes

Hard drives released:
AFTER January 1, 1999 - ATA Disc Drives | SCSI Disc Drives
BEFORE January 1, 1999 - Seagate Disc Drives | Conner Disc Drives

Seagate ATA Hard Drives
(Products released after January 1, 1999)

S T (Seagate Technology) 3 (Form Factor) 17241 (Capacity) A (Interface)

Form Factor
3 3.5-inch, low-profile (LP), 1-inch high

Capacity

Formatted capacity in MB

Interface
A ATA, Ultra ATA, Ultra ATA/66, Ultra ATA/100 (IDE/EIDE)
AS Serial ATA
Seagate SCSI Hard Drives
(Products released after January 1, 1999)

S T (Seagate Technology) 3 (Form Factor) 18275 (Capacity) LW (Interface)

Form Factor
1 3.5-inch, half-height, 1.6-inch high
3 3.5-inch, low-profile (LP), 1-inch high

Capacity

Formatted capacity in MB

Interface
DC Differential, 80-pin Single Connector Attachment (SCA)
LC Low Voltage Differential, 80-pin SCA
LCV Same as LC, but with an increased cache size
(Recommended for video applications and applications with large file formats)
LW Low Voltage Differential, 68-pin Wide SCSI Connector
LWV Same as LW, but with an increased cache size
(Recommended for video applications and applications with large file formats)
N SCSI, 50-pin Narrow SCSI Connector
ND Differential, 50-pin Narrow SCSI Connector
W SCSI, 68-pin Wide SCSI Connector
WC SCSI, 80-pin SCA (Hot Swappable)
WD Differential, 68-pin Wide SCSI Connector
FC Fibre Channel, 40-pin SCA
FCV
Same as FC, but with an increased cache size
(Recommended for video applications and applications with large file formats)

Seagate Hard Drives
(Products released before January 1, 1999)

S T (Seagate Technology) 3 (Form Factor) 9173 (Capacity) N (Interface) PR (Option) - X (Access Time)


Form Factor
1 3.5-inch, half-height, 1.6-inch high
2 5.25-inch, half-height, 1.6-inch high
3 3.5-inch, low-profile (LP), 1-inch high
4 5.25-inch, full height
5 3.5-inch, 0.75-inch high
6 9-inch
7 1.8-inch
8 8-inch
9 2.5-inch, 0.75-inch high

Capacity

Formatted capacity of the drive in MB
(Some models made before 1994 show Unformatted capacity)

Interface
A ATA, Ultra ATA (IDE/EIDE)
AG ATA with SafeWrite Shock Protection
DC Differential, 80-pin Single Connector Attachment (SCA)
E ESDI Interface
FC Fibre Channel, 40-pin SCA
J SMD/SME-E Interface
K IPI-2 Interface or Part of a Kit
LC Low Voltage Differential, 80-pin SCA
LW Low Voltage Differential, 68-pin Wide SCSI Connector
N SCSI, 50-pin Narrow SCSI Connector
ND Differential, 50-pin Narrow SCSI Connector
NM SCSI, 50-pin Narrow SCSI Connector, Macintosh Compatible
NV SCSI, 50-pin Narrow SCSI Connector, Netware Ready
P PCMCIA (PC Card) Interface
R ST412/RLL Interface
S Synchronized Spindle or Synchronous SCSI
W SCSI, 68-pin Wide SCSI Connector
WC SCSI, 80-pin SCA (Hot Swappable)
WD Differential, 68-pin Wide SCSI Connector
X XT Bus (IDE)
Unspecified ST412/MFM Interface

Option
PR Drive shipped with installation software and a Seagate controller or host adapter.

Access Time
0 Standard
1 Faster

Conner Hard Drives
(Products released before January 1, 1999)

CFP (Conner Form Factor / Type) 1060 (Capacity) W(Interface)

Form Factor / Type
C Conner
CP2 2.5-inch
CP3 3.5-inch
CFA Conner Advantage, 3.5-inch
CFL Low Profile, 3.5-inch
CFN Notebook, 3.5-inch
CFP Performance, 3.5-inch
CFS Filepro Series, 3.5-inch

Capacity

Approximate Formatted Capacity in MB
(Can be 3 or 4 digits)

Interface
4 ATA (PC/AT/IDE)
0 SCSI, 50-pin Narrow SCSI Connector
A ATA (PC/AT/IDE)
D Differential SCSI
E SCSI, 80-pin SCA
S SCSI, 50-pin Narrow SCSI Connector
U Ultra SCSI
V Audio/Video Optimized
W SCSI, 68-pin Wide SCSI Connector
 
Western Digital

WD drive model numbers are located on the drive label as circled below:

modelnumbercs6.gif


mdlnbrpreix5.gif
mdlnbrpostjy8.gif

WD400BB indicates the following:
The drive is 40.0GB in size.

It is 7200RPM with a 2MB buffer.

It operates using an ATA/100 interface.

More Info : http://wdc.custhelp.com/cgi-bin/wdc...p_tbl=9&p_id=248&p_created=1154371262&p_olh=0
 
Maxtor :

model1uw7.gif


Using the above model number as an example, 90422D2, would read as follows:
The Maxtor drive is a 90000 series drive
It belongs to the DiamondMax family
It has 4.2 GB (4,035 MB) capacity
It has an Ultra DMA 33 interface
It has 2 physical heads.

Note: With the introduction of drives over 10GB in capacity, the definition of the storage capacity for the model number changed. For a drive model number starting with an “8”, the value is in megabytes (MB). This applies only to models numbers starting with “8”. For example: Model number 88400D8 is an 8400 MB (8.4GB) hard drive.

Model and Family Table

Model Series Family / Type
2B - 541DX
2R - 531DX
3 - DiamondMax VL
4G - D540X
4W - 536DX
4K - D540X
5 - DiamonMax Plus
6L - D740X
9 - DiamondMax & DiamondMax Plus
8 - CrystalMax & DiamondMax
7xxxx - IDE Drives Greater Than 1GB
7xxx - IDE & SCSI Drives Less Than 1 GB
25xxx - IDE 2.5" Drives
MXT - IDE & SCSI Drives
LXT - IDE & SCSI Drives
 
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