PowerStore: NDU failed because NAS server cannot reach the peer DNS server
Summary: This article discusses how the error "NDU failed because NAS server cannot reach the peer Domain Name Server (DNS)" occurs and the solution.
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Symptoms
If there is a transient network issue during NDU, DNS can fail which in turn results in NDU failure.
After restart of the NAS server, the health status of DNS is not cleared although the appliance has recovered from the transient network error.
Cause
Due to network problems, sometimes, NAS server cannot reach the peer DNS server. If this happens during NDU, the SDNAS health status gets degraded and results in NDU failure.
Resolution
Network issues must be resolved so that DNS errors are resolved. NDU can be retried after clearing the DNS errors.
In case the NDU fails again, call technical support.
Also see Dell knowledge base article Dell PowerStore Release Notes for NAS health errors due to DNS issues.
Affected Products
PowerStoreArticle Properties
Article Number: 000126417
Article Type: Solution
Last Modified: 21 Jul 2025
Version: 5
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