HP 9800 SERIES Service Manual

vi
Figures
1-1 Line Voltage Selector Switches ................................................. 1-7
1-2 Bus Address Selector
Switch ................................................... 1-8
1-3
Setting the Drive Number ...................................................... 1-9
1-4 Self-Test Functions
........................................................... 1-11
1-5 9895A Rear Panel
........................................................... 1-13
1-6 Write Enable Method
......................................................... 1-15
2-1 Controller Block Diagram
...................................................... 2-2
2-2 Drive Block Diagram
.......................................................... 2-8
2-3 Track Format
................................................................ 2-11
2-4 Hewlett-Packard Standard Sector Recording Format ............................ 2-14
2-5 IBM Standard Sector Recording Format ........................................ 2-15
3-1 9895A Power Supply Troubleshooting Charts ................................... 3-7
3-2 Differential Read Signal for Entire Track ......................................... 3-9
3-3 Differential Read Signal for Portion of Outer Track ............................... 3-9
3-4
Index Pulse to Write-Splice Bit Timing ......................................... 3-11
3-5
Single- and Two-Sided Adjustment Means ..................................... 3-11
3-6 Drive Electronics Board Layout Diagram
....................................... 3-13
3-7 Head Alignment Amplitude ................................................... 3-15
3-8 Track 0 Optical Sensor Output ................................................ 3-16
3-9 Ejector, Latch and Latch Block ................................................ 3-16
3-10 Load-Pad Adjustment ......... , .............................................. 3-17
3-11 Head-Unload Clearance ............................ , ......................... 3-18
3-12 Drive-Pulley Reversal ........................................................ 3-19
3-13 ROM/PROM Jumper Terminal Configuration ............... " ................. 3-20
4-1 Self-Test Functions ............................................................ 4-1
4-2
09895-66506 Status Display Board ............................................. 4-5
C-1 Removing Front Panel ......................................................... C-2
C-2 Front Panel Removed
......................................................... C-2
C-3 Removing Front Panel
......................................................... C-4
C-4
Self-Test Controls ............................................................. C-5
C-5 Bottom View of Drive Location
................................................. C-9
C-6 Top
View of Drive Location .................................................... C-9
E-l LED Location ................................................................. E-2

HP 9800 SERIES Specifications

General

Category	Storage
Series	9800 SERIES
Type	Disk Array
Drive Types Supported	SAS, SSD
RAID Levels Supported	0, 1, 5, 6, 10
Host Connectivity	Fibre Channel, iSCSI, SAS
Redundancy	Redundant power supplies and fans