Modifying a SmartQoS Policy

Procedure

1. Choose Resources > Tuning > SmartQoS > Client.
2. Click More on the right of a desired QoS policy and select Modify.

   The Modify QoS Policy page is displayed.

3. Set QoS policy parameters for a client, including a fixed bandwidth upper limit and a fixed OPS upper limit.
   1. Set the bandwidth upper limit. That is, the maximum amount of I/O data that can be processed by a single account per second. The unit is MB/s.
   2. Set the OPS upper limit. That is, the maximum number of operations that can be performed by a client per second.
   3. When the object service is enabled in the storage system, you can choose whether to enable Object Service Read/Write Control to control the upper limits of read and write OPS and bandwidth of the object service. After this function is enabled, you need to set the QoS policy parameters of the object service.

      Table 1 describes related parameters.

      Table 1 Object service QoS policy parameters

      Parameter	Description
      Read Bandwidth Upper Limit	Read bandwidth upper limit of a single client of the object service. That is, the maximum amount of data in the read requests of the object service delivered by a single client per second. The unit is MB/s.
      Write Bandwidth Upper Limit	Write bandwidth upper limit of a single client of the object service. That is, the maximum amount of data in the write requests of the object service delivered by a single client per second. The unit is MB/s.
      Read OPS Upper Limit	Read OPS upper limit of a single client of the object service. That is, the maximum number of read requests of the object service that can be delivered by a single client per second.
      Write OPS Upper Limit	Write OPS upper limit of a single client of the object service. That is, the maximum number of write requests of the object service that can be delivered by a single client per second.

4. Click OK.