[ClusterLabs] Antw: [EXT] Stonith failing

[Strahil Nikolov]

This  one links to how  to power fence when reservations are removed:
https://access.redhat.com/solutions/4526731

Best Regards,
Strahil Nikolov


На 30 юли 2020 г. 9:28:51 GMT+03:00, Andrei Borzenkov <arvidjaar at gmail.com> написа:
>30.07.2020 08:42, Strahil Nikolov пишет:
>> You got plenty of options:
>> -  IPMI based  fencing like  HP iLO,  DELL iDRAC
>> -  SCSI-3  persistent reservations (which can be extended to fence 
>the node when the reservation(s)  were  removed)
>> 
>
>SCSI reservation prevents data corruption due to concurrent access; it
>cannot be used as replacement for proper STONITH as it does not affect
>all other non-disk resources.
>
>You need to combine SCSI reservation which something that actually
>eliminates the node at which point it becomes much more simple to use
>SBD.
>
>
>
>> - Shared  disk (even iSCSI)  and using SBD (a.k.a. Poison pill) -> in
>case your hardware has  no watchdog,  you can use  softdog  kernel
>module  for linux.
>> 
>> Best  Regards,
>> Strahil Nikolov
>> 
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