March 2019
Intermediate to advanced
356 pages
10h 7m
English
Content preview from Mastering Ceph - Second Edition
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Failing disks
As Ceph stripes data across all disks in the cluster, a single disk, which is in the process of failing but has not yet completely failed, may start to cause slow or blocked IO across the cluster. Often, this will be caused by a disk that is suffering from a large number of read errors, but it is not severe enough for the disk to completely fail. Normally, a disk will only reallocate sectors when a bad sector is written to. Monitoring the SMART stats from the disks will normally pick up conditions such as these and allow you to take action.
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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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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.