Appendix K Appendix K- Configuring Sata And Pata Optical Disk Drives; Drive Detection And Assignment Sequence; Workstation Sata Port Configuration Rules; Hp W9400 Workstation Bios Configuration - HP Xw8400 - Workstation - 4 GB RAM Technical Reference Manual

K Appendix K— Configuring SATA and
PATA optical disk drives
This section provides information on the sequence in which the workstation detects and assigns optical
disk drive (ODD) IDs and drive letters when both Serial ATA (SATA) and Parallel ATA (PATA) ODDs
are installed in a workstation. It also provides configuration rules that determine which SATA ports are
functional and which ports can be used to update system BIOS. The following information provides
assumptions and configuration rules for installing SATA and PATA ODDs in the same workstation. It
also provides configuration guidelines for installing SATA ODDs in the same workstation with SATA
hard disk drives (HDDs).

Drive detection and assignment sequence

When mixing PATA and SATA ODDs in a workstation, the PATA optical drive will always be detected
first by the system. For example, if the first ODD is a SATA drive and the second ODD is a PATA drive,
the system will detect the PATA ODD drive first. This will generally result in the PATA ODD being
assigned the lower drive ID or drive designation letter by the operating system.

Workstation SATA port configuration rules

Port configuration rules are determined individually by workstation product as shown in the following
sections.

HP w9400 Workstation BIOS configuration

When the xw9400 Workstation is set to RAID Mode in BIOS, any SATA ports that have an ODD
connected to them must have RAID turned off.

HP xw8400/xw6400/xw4400 Workstation SATA configuration mode settings

When the SATA Configuration Mode for these workstations is set to:
●
Separate Mode - Only SATA ports 0, 1, 2, and 3 are functional for any SATA devices.
● Combined Mode - Only SATA ports 0 and 2 are functional for any SATA devices.
●
RAID/AHCI Mode - You will not be able to update system BIOS from the SATA ODD.
● Combined Mode or Separate Mode - BIOS can be updated using a SATA ODD attached to
functional ports.
ENWW Drive detection and assignment sequence 189