Table of Contents
Advertisement
The 3350 storage subsystem uses a sealed, head/ disk
assembly (HDA) as the storage medium. The record-
ing heads and the carriage are an integral part of the
HDA.
Characteristic
3350 in 3330-1
Compatibility Mode
(2 per drive)
Cylinders per drive
404 (plus 7
alternates)
Tracks per cylinder
19
Tracks per drive
7,676 (plus
133 alternates)
Track capacity
13,030
(bytes)
Cylinder capacity
247,570
(bytes)
Drive capacity
100 million
(approx bytes)
(per logical volume)
Figure 2. Basic 3350 Characteristics
IBM 3350 Head/Disk Assembly
All 3350 drives are shipped formatted in the operating
mode specified by the customer.
If
an HDA is to
operate in a different mode it can be reformatted with
an IBM supplied program.
3350 in 3330-11
3350in
Compatibility Mode
Native Mode
808 (plus 7
555 (plus 5
alternates)
alternates)
19
30
15,352 (plus
16,650 (plus
133 alternates)
1 50 alternates)
13,030
19,069
247,570
572,070
200 million
317.5 million
IBM 3350 Head/Disk Assembly
5
Advertisement
Table of Contents
