November 2017
Intermediate to advanced
494 pages
14h 29m
English
Content preview from Mastering Proxmox - Third Edition
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Maps
In Ceph, maps hold information, such as a list of participating nodes in a cluster and their locations, and data paths, and a list of OSDs with certain data chunks. There are several maps in a Ceph cluster, such as a cluster map, an object storage daemon (OSD) map for a list of OSDs, a monitor map for known monitor nodes, a placement group (PG) map for the location of objects or data chunks, and a CRUSH map to determine how to store and retrieve data by computing the data storage location.
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