hp workstations zx6000, hp server rx2600 - operation and maintenance guide

Product Information
Hot-Swappable/Pluggable Devices
Chapter 1
25
Hot-Swappable/Pluggable Devices
The zx6000 and rx2600 have hard disk drives that are hot-pluggable and power supplies
that are hot-swappable. This section explains how to swap these devices while the
system is running.
Topics covered in this section are:
• Hot-Swapping a Fan
• Hot-Swapping a Power Supply
• Hot-Plugging a Hard Disk Drive
Hot-Swapping a Fan
System fans can be swapped out of a system while it is running. You can remove a bad
system fan and replace it using the procedures described in the section “Removing and
Replacing the System Fans” in Chapter 2 of this document.
Hot-Swapping a Power Supply
The hot-swapping capability for power supplies is important for those systems that need
to be always on and that have two supplies installed in them. What this means to you is,
if one of your power supplies stops working or is having voltage problems, the remaining
supply can support the system until the failed unit can be replaced. You can then remove
the bad supply and replace it using the procedures described in the section “Removing
and Replacing a Power Supply” in Chapter 2 of this document.
Hot-Plugging a Hard Disk Drive
The zx6000 and rx2600 systems can support up to three hot-pluggable, Low-Voltage
Differential (LVD) hard disk drives. These hard disk drives are 3.5-inch form factor, 10K
and 15K RPM devices that connect to Ultra 160 Wide LVD (Low Voltage Differential)
SCSI interfaces on the disk bay backplane.
The two hard disk drive models currently supported are:
• 36 GB LVD 10K RPM disk drive (Product Number A7835A)
• 73 GB LVD 10K RPM disk drive (Product Number A7837A)
The physical aspect of inserting and removing a disk drive is discussed in the document
that comes with the drive. However, the operating system must be prepared for the
insertion or removal of a disk, or unexpected and harmful effects may occur.
There is a significant difference between the terms “hot-pluggable” and “hot-swappable”.
Hot swapping happens at the device level; that is, a hot-swappable device manages
insertion/removal on its own without assistance from operating system commands. The
disk drive(s) in the zx6000 and rx2600 are not hot-swappable; they are merely
hot-pluggable. Thus, a manual software procedure must be done in order to safely
remove or insert disk drives while the system is running.