由于名称解析问题描述， SCV 任务 " 发现资源 " 失败

适用场景

适用于VMware vSphere的SnapCenter 插件(SCV) 4.4或更高版本

问题描述

• SCV 备份作业无法发现资源，并显示错误：

The backup job <Job_ID> has completed on primary
Status: failed
Task failures
Task 'Discovering Resources' failed with error: Unable to discover resources on SCV: Failed to get the storage system for host resource : Name : /<NFS_VOLUME>, Type: SDNASDir

• 在与备份作业不同的时间ProtectionService.log ，报告错误：

2021-07-21 09:45:50.566 +00:00 [WRN] [Storage] [TID:11] [RID:] [CID:] [JID:-1] Failed to resolve <IP_ADDRESS> byHostEntry, Exception:System.Net.Internals.SocketExceptionFactory+ExtendedSocketException (00000005, 0xFFFDFFFF): Name or service not known
  at System.Net.Dns.InternalGetHostByAddress(IPAddress address)
  at System.Net.Dns.GetHostEntry(String hostNameOrAddress)
  at SnapDrive.Nsf.Common.Infrastructure.Storage.NetworkResourceIdCache.ResolveWithDns(String hostName)