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IBM z13s User Manual

IBM z13s
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© Copyright IBM Corp. 2016. All rights reserved. 355
Chapter 9. Reliability, availability, and
serviceability
This chapter describes the reliability, availability, and serviceability (RAS) features of z13s
servers.
The z13s design is focused on providing higher availability by reducing planned and
unplanned outages. RAS can be accomplished with improved concurrent replace, repair, and
upgrade functions for processors, memory, drawers, and I/O. RAS also extends to the
nondisruptive capability for installing Licensed Internal Code (LIC) updates. In most cases, a
capacity upgrade can be concurrent without a system outage. As an extension to the RAS
capabilities, environmental controls are implemented in the system to help reduce power
consumption and meet cooling requirements.
The design of the memory on z13s servers is based on the fully redundant memory
infrastructure, redundant array of independent memory (RAIM). RAIM was first introduced
with the z196. The z Systems servers are the only systems in the industry that offer this
memory design.
RAS also provides digitally signed delivery and transmission of LIC, fixes, and
restoration/backup files. Any data that is transmitted to IBM Support is encrypted. The design
goal for z13s servers is to remove all sources of planned outages.
This chapter includes the following sections:
򐂰 The RAS strategy
򐂰 Availability characteristics
򐂰 RAS functions
򐂰 Enhanced Driver Maintenance
򐂰 RAS capability for the HMC and SE
򐂰 RAS capability for zBX Model 004
򐂰 Considerations for PowerHA in zBX environment
򐂰 IBM z Advanced Workload Analysis Reporter
򐂰 RAS capability for Flash Express
9

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IBM z13s Specifications

General IconGeneral
BrandIBM
Modelz13s
CategoryServer
LanguageEnglish

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