When the services gateway powers up, it tries to boot Junos OS from the default storage
media. If the device fails to boot from the default storage media, it tries to boot from the
alternate storage media. With the dual-root partitioning scheme, the device first tries to
boot Junos OS from the primary root partition and then from the backup root partition
on the default storage media. If both primary and backup root partitions of a media fail
to boot, then the device tries to boot Junos OS from the next available type of storage
media. The services gateway remains fully functional even if it boots Junos OS from the
backup root partition of storage media.
Related
Documentation
• Installation Overview for the SRX550 High Memory Services Gateway on page 87
• Required Tools and Parts for Installing the SRX550 High Memory Services Gateway
on page 88
• SRX550 High Memory Services Gateway Basic Connectivity Overview on page 123
11Copyright © 2016, Juniper Networks, Inc.
Chapter 1: System Overview
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