March 2019
Intermediate to advanced
356 pages
10h 7m
English
Content preview from Mastering Ceph - Second Edition
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File layouts
CephFS allows you to alter the way files are stored across the underlying objects by using settings that are known as file layouts. File layouts allow you to control the stripe size and width and also which RADOS pool the data objects will reside in. The file layouts are stored as extended attributes on files and directories. A new file or directory will inherit its parent's file layouts settings; however, further changes to a parent directory's layout will not affect existing files.
Adjusting the file striping will normally be done for performance reasons to increase the parallelism of reading larger files as a section of data will end up being spread across more OSDs. By default, there is no striping and a large file stored ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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