IBM 25L1900 hard drive specifications

IBM Ultrastar 18ES - hard drive - 18.3 GB - Ultra2 Wide SCSI

The IBM Ultrastar 18ES is a one-inch high low-profile hard disk drive that offers capacities of 18.2 gigabytes and 9.1 GB and average seek times as fast as 7.0 ms. And with the first implementation of giant magnetoresistive (GMR) head technology in a server-class drive, the Ultrastar 18ES provides an unprecedented areal density of 3.67 GB per disk. IBM has developed an integrated LSI chip that incorporates a microcomputer, hard disk controller, and flash memory in a single chip to help increase drive performance, reduce power usage, and enhance reliability.

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Manufacturer
IBM

HDD Part Number
25L1900

Related hard drive utilities

General

Device Type
Hard drive - Internal hard drive

Width
4 in

Depth
5.7 in

Height
1 in

Weight
1.3 lbs

Hard Drive

Form Factor

Capacity
18.3 GB

Interface Type
Ultra2 Wide SCSI

Connector
68 pin HD D-Sub

Buffer Size
2 MB

Bytes per Sector
512

Compliant Standards
S.M.A.R.T.

Performance

Drive Transfer Rate
80 MBps

Internal Data Rate
30.5 MBps

Seek Time
7 ms (average) / 8 ms (max)

Track-to-Track Seek Time
0.8 ms

Average Latency
4.2 ms

Spindle Speed
7200 rpm

Reliability

Storage Hard Drive / Non-Recoverable Errors
1 per 10^13

Storage Controller

Type
None

Expansion / Connectivity

Connections
1 x Storage - Ultra2 Wide SCSI - 68 pin HD D-Sub (HD-68)

Compatible Bays
1 x Internal - 3.5" x 1/3H

Miscellaneous

Cables Included
None

Package Type
Retail

Power

Power Device
None

Software / System Requirements

Software Included
None

OS Required
None

Manufacturer Warranty

Service & Support
5 years warranty

Service & Support Details
Limited warranty - Parts - 5 years - Bring-in

Environmental Parameters

Min Operating Temperature
41 �F

Max Operating Temperature
131 �F

Humidity Range Operating
8 - 90%

Max Altitude Operating
9840 ft


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