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Advanced O&M Command Reference

OceanStor 18000 V3 Series V300R006

This document is applicable to OceanStor 18500 V3 and 18800 V3. Based on the CLI, this document describes how to use various commands classified by functionsand how to set the CLI and manage the storage system through these commands. The document that you browse online matches the latest C version of the product. Click Download to download documents of other C versions.
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change sdparam

change sdparam

Function

The change sdparam command is used to modify some configurations of disks or LUNs, including the merging status, queue depth, and disk cache status.

Format

change sdparam device_type=? [ merge=? | qdepth=? | cache=? ]

Parameters

Parameter

Description

Value

device_type=?

Device model.

The value can be LUN, SAS, SATA, SSD, or NearLine_SAS.

merge=?

Status of I/O merging.

The value can be on or off, the details are as follows:

  • on: The I/O merging function is enabled.
  • off: The I/O merging function is disabled.

qdepth=?

Queue depth of disks.

The value is an integer ranging from 1 to 64.

cache=?

Status of disk write cache.

The value can be on or off, the details are as follows:

  • on: The disk write cache function is enabled.
  • off: The disk write cache function is disabled.

Views

Developer view

Usage Guidelines

None

Example

Change the cache status of LUNs to on.

developer:/>change sdparam device_type=LUN cache=on 
Command executed successfully

System Response

None

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Updated: 2019-07-12

Document ID: EDOC1000138389

Views: 486391

Downloads: 85

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