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SnapCenter SQL 实例级备份触发意外存储快照

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适用于

  • NetApp SnapCenter Server(6.x 及更高版本)
  • 适用于 Microsoft SQL Server 的 SnapCenter 插件
  • 虚拟化 SQL Server 环境(VMware vSphere)
  • SQL Server 实例,其中:
    • 用户数据库 驻留在专用 SAN/NAS 数据卷 (iSCSI / FC / NFS) 上
    • 系统数据库 (master、model、msdb) 驻留在操作系统驱动器上 (例如 C: 或 D:)

问题

当 SnapCenter 配置为在实例级别保护 SQL Server 时,备份作业不仅可以在预期的数据库数据卷上创建存储快照,还可以在支持 虚拟机 OS/系统驱动器 的存储上创建存储快照。
这种行为可能导致:
  • 重复备份快照
  • 共享数据存储上的意外快照
  • 增加了快照数量和可避免的存储消耗

单个 SnapCenter 实例级 SQL 备份可能会导致 ONTAP 卷上的快照:
  • SQL 用户数据库卷(预期)
  • SQL 日志卷(预期)
  • 托管 OS/系统驱动器的共享 VM 数据存储区(从数据库备份角度来看是意外的)

影响:

  • 由于数据库驱动的快照,共享 VMware 数据存储可能会经历快速的容量利用率增长
  • 数据存储容量耗尽的风险会影响不相关的虚拟机
  • 增加快照管理和清理开销

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