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OceanStor UltraPath for vSphere V100R008C50 User Guide 06

This document covers the functions, features, installation, configuration, upgrade, uninstallation, maintenance, troubleshooting, and FAQs of OceanStor UltraPath for vSphere (UltraPath forvSphere). UltraPath for vSphere is the multipathing software developed by HuaweiTechnologies Co., Ltd (Huawei for short). The document aims at helping users to be fully familiar with UltraPath for vSphere and its use.
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Why Does PSOD Occur When HyerMetro LUNs Are Converted to Common LUNs and Remapped to the Host?

Why Does PSOD Occur When HyerMetro LUNs Are Converted to Common LUNs and Remapped to the Host?

Question

Why does purple screen of death (PSOD) occur when HyerMetro LUNs are converted to common LUNs and remapped to the host?

Answer

PSOD occurs when the ESXi system detects file systems with the same UUID, as shown in Figure 5-1.
Figure 5-1  PSOD on the ESXi System

After HyerMetro LUNs are converted to common LUNs and re-mapped to the ESXi host, the system detects two file systems of the same UUID because the two LUNs are the same. As a result, PSOD occurs. To solve the problem, remove redundant LUN mappings not used by the host or format either LUN and then restart the host.

Do not add two same LUNs to an ESXi host. For details, see VMware knowledge base.

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Updated: 2019-03-06

Document ID: EDOC1000105152

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