Home
Seagate
Storage
ST251R
Seagate ST251R - User Manual
28 pages
Manual
Specs
Ask a question
Save Page as PDF
To Next Page
To Next Page
Loading...
ST251/ST251
RIST277R
Product
Manual
February
3,
1987
36035-001,
Revision
A
920
Disc
Drive,
Scotts
Valley,
CA
95066-4544,
USA
Telephone:
408/438-6550.
Telex:
176455
SEAGATE
SCVL
c5S»
seagate
2
Table of Contents
Main Page
Table of Contents
3
Specification Summary
9
Drive Capacity
9
Unformatted Capacity
9
Formatted Capacity
9
Physical Organization
9
Access Time Definition and Timing
10
Step Pulse Period and Seek Method
10
Functional Specifications
11
S Recording Methods
11
Physical Specifications
11
Reliability Specifications
12
Read Error Rates
12
Bit Jitter
12
Media Defects
12
St277R
13
Environmental Specifications
13
Ambient Temperature
13
St251
13
St251R/277R
13
Temperature Gradient
13
Relative Humidity
14
Altitude Limits
14
S Shock and Vibration Specifications
14
Operating Vibration
14
Figure 1. Typical
17
Figure 2. Typical Power-On Sequence
17
Figure 3. Drive Mounting Dimensions
20
Handling Precautions
21
Shipping Zone
21
Auto-Truncation
21
Figure 4. Read/Write Timing
22
Typical Drive Timing
22
Figure 5. Buffered-Seek Timing
23
Figure 6. Auto-Truncation Timing
23
Drive Configuration
25
Drive Configuration Shunt J7
25
Figure 7. Host/Drive Interface Connectors
25
Drive Select
26
Daisy-Chain/Radial Drive Configurations
26
Write Fault Latch Options: JP1 and J7
26
DC-Unsafe Option: JP2
27
Precompensation
27
Life-Test
27
ST251 1251 RI277R Product Manual, Rev.a
28
Need help?
Do you have a question about the Seagate ST251R and is the answer not in the manual?
Ask a question
Seagate ST251R Specifications
General
Storage Type
HDD
Interface
ST-506/412
Form Factor
5.25 inch
Rotation Speed
3600 RPM
Average Seek Time
65 ms
Data Transfer Rate
5 Mbit/s
Related product manuals
Seagate ST251
28 pages
Seagate ST250DM000
68 pages
Seagate ST225
26 pages
Seagate ST212
54 pages
Seagate ST2000VX000
62 pages
Seagate ST2000LX001
30 pages
Seagate ST2400MM0129
67 pages
Seagate Barracuda ST2000DM008
32 pages
Seagate Barracuda ST2000DM001
44 pages
Seagate ST500LX003
42 pages
Seagate ST4000DM000
40 pages
Seagate ST5000DM000
35 pages