IBM eServer OpenPower 720, Technical Overview And Introduction

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Chapter 3. RAS and manageability
53
Concurrent Maintenance
Concurrent Maintenance provides replacement of the following parts while the system
remains running:
򐂰 Disk drives
򐂰 Cooling fans
򐂰 Power subsystems
򐂰 PCI-X adapter cards
3.2 Manageability
The functions and tools provided for IBM
Sserver
OpenPower systems are described in the
next sections.
3.2.1 Service processor
With system in power standby mode, or with an operating system in control of the machine, or
controlling the related partition, the SP is working and checking the system for errors,
ensuring the connection to the HMC for manageability purposes. With system up and
running, the SP provides the possibility to view and change the Power-On settings, using the
Advanced System Management Interface (ASMI). Also, the surveillance function of the SP is
monitoring the operating system to check that it is still running and has not stalled.
See Figure 3-2 on page 54 for an example of the Advanced System Management Interface
accessed from a Web browser.