Hello, I have OpenVZ node with multiple disks (12), node has multiple VE containers (30). Each HDD is shared between 2 - 4 VE. It usually happens that 1 VE can utilise complete HDD and kill disk performances for other VE containers located on same HDD.
for example: HDD-1 VE: 101, 102, 103 HDD-2 VE: 104, 105, 106, 107 ... Now when VE 103 overuses HDD-1 only affected is HDD-1, Having global IO priority will mean that if HDD-2 containers are idle, HW will think that overall there is no disk over-usage, because total disk usage of HDD-1 + HDD-2 is no where near limits, but truth is something else, VE103 already reached HDD-1 disk IO limit and HW will do nothing to prevent it from doing that. IO priority might work on single HDD but with multiple HDDs I doubt it serves the purpose. Does anybody know any working solution for this ? Kind Regards, VE4FUN _______________________________________________ Users mailing list [email protected] https://openvz.org/mailman/listinfo/users
