dragnet:cluster_support

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dragnet:cluster_support [2017-08-28 09:42] – [Failing Components] add ansible command to query all drgXX drives amesfoortdragnet:cluster_support [2017-08-29 11:09] (current) – [Failing Components] add smartd restart ansible command amesfoort
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 then type your password once. then type your password once.
  
 +To restart all smartd services, run:
 +  $ ansible alldragnet -b -K -f 25 -a 'systemctl restart smartd'
  
 == Upon Drive Failure == == Upon Drive Failure ==
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 For disk replacement, one person is enough. If the node has to be opened up, 2 persons are needed (sliding rails issue + node weight + limited space in data center). For disk replacement, one person is enough. If the node has to be opened up, 2 persons are needed (sliding rails issue + node weight + limited space in data center).
  
 +The ''ledmon'' package (''sudo yum install ledmon'') provide ''ledctl'' which can be used to turn off and on status lights on the disk caddies. Use ''ledctl locate=/dev/sdd'' or ''ledctl locate_off=/dev/sdd'' to turn on or off the lights of the device you want to change.
  
 ==== Overview Examples of mdadm and lsblk ==== ==== Overview Examples of mdadm and lsblk ====
  • Last modified: 2017-08-28 09:42
  • by amesfoort