Sun Fire V445 Server Administration Guide - SCN Research

Caution – The ALOM system controller card is not a hot-pluggable component. To
avoid personal injury and damage to the card, you must power off the system and
disconnect all AC power cords before installing or removing an ALOM system
controller card.
Caution – The PCI cards are not hot-pluggable components. To avoid damage to the
cards, you must power off the system before removing or installing PCI cards.
Access to the PCI slots requires removing the top cover, which automatically powers
down the system.
Hard Disk Drives
Before performing hard disk drive hot-plug operations, use the Solaris cfgadm(1m)
utility to prepare the OS. The cfgadm utility is a command-line tool for managing
hot-plug operations on Sun Fire V445 internal disk drives and external storage
arrays. Refer to the cfgadm man page.
For more information about the disk drives, see “About the Internal Disk Drives” on
page 81. For general hard disk hot-plug procedures, refer to the Sun Fire V445 Server
Service Manual. For procedures to perform a hard disk hot-plug operation on
mirrored and nonmirrored disks, see “Performing a Mirrored Disk Hot-Plug
Operation” on page 121 and “Performing a Nonmirrored Disk Hot-Plug Operation”
on page 123.
Caution – When hot-plugging a hard disk drive, first ensure that the drives blue
OK-to-Remove indicator is lit. Then, after disconnecting the drive from the SAS
backplane, allow 30 seconds or so for the drive to spin down completely before
removing it. Failing to let the drive spin down before removing it could damage the
drive. See Chapter 6.
Power Supplies
Sun Fire V445 server power supplies are hot-swappable. A power supply is hotswappable
only when it is part of a redundant power configuration, which is a
system configured with more than two power supplies in working condition.
Caution – Removing a supply that is one of only two installed could cause
undefined behavior in the server and could lead to system shutdown.
80 Sun Fire V445 Server Administration Guide • August 2006