HP 9000 Series Service Manual

11-84 Chapter 11
SCSI Peripherals and I/O Information
Hot-Pluggable Disk Modules (1Gb, 2Gb, and 4 Gb Disk Modules)
(D Class only)
Figure 11-47 Hot-Plug Disk Modules
Specifications
• Integrated W/F Diff. SCSI-2 Controller
• Asynchronous and Synchronous data transfer protocol
• Downloadable Firmware
• Selectable sector sizes (Default 512 bytes/sector)
• Integrated error correction protocol = 96 bit Reed-Solomom ECC
• Sealed low profile head/disk assembly
• Automatic shipping lock
• Automatic thermal compensation
• Data buffer size = 480 Kbytes
• Programable sector reallocation scheme
• Flawed sector reaalocation at format time
• Reallocation of defects on command (post format)
• Embedded Grey Code track address to eliminate seek errors
• Self-test Performed at power on
• Command Queuing - 64 commands
• No preventative maintenance or adjustments required
• MTFB = 800,000 hours

HP 9000 Series Specifications

General

Operating System	HP-UX
Manufacturer	Hewlett-Packard (HP)
Series	9000
Type	Server
Processor	PA-RISC
Memory	Varies by model
CPU	PA-RISC processors
Expansion Slots	Varies by model
Networking	Ethernet
Form Factor	Rackmount
Models	A-Class, D-Class, E-Class, K-Class, N-Class, RP Series, Superdome