第 21 章 配置 Ceph 目标大小比率

流程

• 要针对块存储进行优化，请运行以下命令并设置目标比率。在本例中，块存储针对 80% 进行了优化。

  $ oc patch storagecluster ocs-storagecluster -n openshift-storage --type merge -p '
  {
    "spec": {
      "managedResources": {
        "cephBlockPools": {
          "poolSpec": {
            "replicated": {
              "size": 3,
              "targetSizeRatio": 0.8
            }
          }
        }
      }
    }
  }'

  $ oc patch storagecluster ocs-storagecluster -n openshift-storage --type merge -p '
  {
    "spec": {
      "managedResources": {
        "cephFilesystems": {
          "dataPoolSpec": {
            "replicated": {
              "size": 3,
              "targetSizeRatio": 0.2
            }
          }
        }
      }
    }
  }'

  $ ceph osd pool autoscale-status
  POOL                                          SIZE  TARGET SIZE  RATE  RAW CAPACITY   RATIO  TARGET RATIO  EFFECTIVE RATIO  BIAS  PG_NUM  NEW PG_NUM  AUTOSCALE  BULK
  .mgr                                        580.0k                3.0         6144G  0.0000                                  1.0      32              on         False
  ocs-storagecluster-cephblockpool            216.7M                3.0         6144G  0.8000        0.8000           0.8000   1.0     256              on         False
  ocs-storagecluster-cephfilesystem-metadata  55030                 3.0         6144G  0.0000                                  4.0      32              on         False
  ocs-storagecluster-cephfilesystem-data0         0                 3.0         6144G  0.2000        0.2000           0.2000   1.0     128          32  on         False

• 要优化文件系统中的存储，请运行以下命令：

  在这个示例中，文件系统被优化为 98%。Block pool targetSizeRatio: 0.01/0.02 Filesystem targetSizeRatio: 0.98 Object store targetSizeRatio: 0.01 （如果存在）

  $ oc patch storagecluster ocs-storagecluster -n openshift-storage --type merge -p '
  {
    "spec": {
      "managedResources": {
        "cephBlockPools": {
          "poolSpec": {
            "replicated": {
              "size": 3,
              "targetSizeRatio": 0.02
            }
          }
        }
      }
    }
  }'

  $ oc patch storagecluster ocs-storagecluster -n openshift-storage --type merge -p '
  {
    "spec": {
      "managedResources": {
        "cephFilesystems": {
          "dataPoolSpec": {
            "replicated": {
              "size": 3,
              "targetSizeRatio": 0.98
            }
          }
        }
      }
    }
  }'

  $ ceph osd pool autoscale-status
  POOL                                          SIZE  TARGET SIZE  RATE  RAW CAPACITY   RATIO  TARGET RATIO  EFFECTIVE RATIO  BIAS  PG_NUM  NEW PG_NUM  AUTOSCALE  BULK
  .mgr                                        580.0k                3.0         6144G  0.0000                                  1.0      32              on         False
  ocs-storagecluster-cephblockpool            216.9M                3.0         6144G  0.0909        0.0200           0.0909   1.0     256          32  on         False
  ocs-storagecluster-cephfilesystem-metadata  59126                 3.0         6144G  0.0000                                  4.0      32              on         False
  ocs-storagecluster-cephfilesystem-data0         0                 3.0         6144G  0.9091        0.2000           0.9091   1.0      32         256  on         False

• 要优化 cephobjectstore 中的存储，请运行以下命令：

  在本例中，cephobjectstore 被优化为 80%。

  $ oc patch storagecluster ocs-storagecluster -n openshift-storage --type merge -p '
  {
    "spec": {
      "managedResources": {
        "cephObjectStores": {
          "dataPoolSpec": {
            "replicated": {
              "size": 3,
              "targetSizeRatio": 0.80
            }
          }
        }
      }
    }
  }'

• 要编辑自定义 cephblockpool 数据池的目标大小比率，请运行以下命令：

• 要编辑自定义文件系统数据池的目标大小比率，请编辑 managedResources > cephFilesystems > additionalDataPools 下的 ocs-storagecluster YAML，如下所示：

        additionalDataPools:
        - compressionMode: aggressive
          name: pool-1
          replicated:
            size: 3
            targetSizeRatio: 0.80: