Veeam Backup使用相关问题汇总

问题1

备份到SMB存储报错，提示“Incorrect function. Agent failed to process method {ReFs.SetFileIntegrity}”

解决方法
定位到注册表HKEY_LOCAL_MACHINE\SOFTWARE\Veeam\Veeam Backup and Replication
新建DOWRD值，名称UseCifsVirtualSynthetic，数值为0

问题2

恢复实例到ESXi时报错，提示以下错误：
1. Error: Unable to check if vPower NFS is mounted on the host
2. Failed to add NFS datastore for NFS host
3. Failed to mount NFS volume

解决方法
检查是否有其他服务占用了NFS端口
Get-Process -Id (Get-NetTCPConnection -LocalPort 111).OwningProcess

问题3

使用Agent备份时报错，提示：

2022/8/7 1:21:08 :: Creating VSS snapshot Error: Failed to create snapshot: Backup job failed.
Cannot create a shadow copy of the volumes containing writer's data.
A VSS critical writer has failed. Writer name: [SqlServerWriter]. Class ID: [{a65faa63-5ea8-4ebc-9dbd-a0c4db26912a}]. Instance ID: [{27cb112f-ca7c-4875-8f90-96f6ac42b218}]. Writer's state: [VSS_WS_FAILED_AT_PREPARE_SNAPSHOT]. Error code: [0x800423f4].

Eventlog报错：

Sqllib 错误: 调用 ICommandText::Execute 时遇到 OLEDB 错误。hr = 0x80040e14。 SQLSTATE: 42000, Native Error: 3013
Error state: 1, Severity: 16
Source: Microsoft SQL Server Native Client 11.0
Error message: BACKUP DATABASE 正在异常终止。
SQLSTATE: 42000, Native Error: 18210
Error state: 1, Severity: 16
Source: Microsoft SQL Server Native Client 11.0
Error message: BackupVirtualDeviceSet::AllocateBuffer: 在备份设备 '{C6E9D69C-7DE4-46A2-8D1D-546DB7A70318}720' 上发生故障。操作系统错误 995(由于线程退出或应用程序请求，已中止 I/O 操作。)。

解决方法
使用vssadmin list writers发现以下错误

写入程序名: 'SqlServerWriter'
   写入程序 ID: {a65faa63-5ea8-4ebc-9dbd-a0c4db26912a}
   写入程序实例 ID: {01db3075-d98f-46de-ab9e-7f8fdd59fbd7}
   状态: [8] 失败
   上一个错误: 不可重试的错误

修改SQLServer服务器属性，处理器-最大工作线程数为3000