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在 ONTAP 9 存储效率中,什么是自适应压缩类型?

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适用于

  • ONTAP 9
  • 存储效率
  • 数据压缩

回答

  • 自适应压缩将两个 4k WAFL 块组合成 8k 压缩组,然后将其压缩并存储为单个 4k WAFL 块。
  • 当用户请求此压缩组中的数据时,与 32k 压缩组大小的二次压缩相比,解压缩数据并将其提供给用户所需的时间更少,从而提高随机读取性能。
  • 一般来说,自适应压缩更适合随机读取工作负载。
  • 与二次压缩相比,自适应压缩提供的节省相对较少,但性能更好。
  • 现代平台使用自动自适应压缩(可能与块温度敏感性一起使用)来自动选择最佳压缩组大小。
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