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NTP concerns for virtual NIOS grid?
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09-29-2023 02:09 PM
Recently switched from physical to virtual GM, GMC, and all grid members... The virtual grid is spread out across several separate VMware clusters around the world. I have several hardware-based low-stratum NTP server appliances available globally too. I'm not using Infoblox as an NTP server for any of the regular workload servers/VMs as they're pointing at the hardware based NTP servers.
Are there any NTP-related concerns for the grid I should pay attention to or changes now that they're all virtual? (<-- VMs are regularly snapshotted as part of a backup solution, so is that snapshot stun a concern?)
The Grid NTP Config is set to sync with my external (physical) NTP server appliances.
The Member NTP Config for the GM and all the other members do not have "Enable the NTP Server on this Member" checked. (<-- should the GM have this turned on?)
The Member NTP Configs for all the NON-GM members are all set to "synchronize this node only with the Grid Master". (<-- is that possible when the NTP Server isn't checked on the GM)
Would it be better to have all the member sync time with the virtual GM or have them all pointed externally at the physical time server appliances?
Re: NTP concerns for virtual NIOS grid?
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02-14-2024 11:00 AM
Is your GM in HA?
If not I would point them externally.
Re: NTP concerns for virtual NIOS grid?
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2 weeks ago - last edited 2 weeks ago
I've noticed errors from our grid appliances when doing vmware snapshots through rubrik.
The guest OS has reported an error during quiescing. The error code was: 3 The error message was: Error when enabling the sync provider.
May not be safe to snap Infoblox appliances with vmware.