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How-to delete RBD snapshot in Luminous+ Ceph Cluster (Kraken bug)

"rbd: removing snaps failed: (2) No such file or directory"



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How-to expand BlueFS DB device of Ceph Bluestore OSD

RocksDB size expanding



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SATA bus vdsm-hook for oVirt

Special for very old kernel



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Get all ipv4 public addresses from ansible facts

Simple way to get actual facts



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DELL PowerEdge G13 excessive fan speed

Fan work on 87%, always



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