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Advanced O&M Command Reference

OceanStor 2800 V5 V500R007

This document is applicable to OceanStor 2800 V5. Based on the CLI, this document describes how to use various commands classified by functions and 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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mr checkcrc

mr checkcrc


The mr checkcrc command is used to check whether the CRC of metadata backed up is consistent.


mr checkcrc -o objectType -p poolId [ -t tierType | -l lunId ]





objectType ID of a backed up metadata object.

Possible values are 12, 17,

and 19.

poolId Disk domain ID.

The ID can be obtained by running the "show disk_domain general" command in super administrator mode.

tierType Tier type.

The value can be 0, 1, or 2,where:

  • 0: tier 0.
  • 1: tier 1.
  • 2: tier 2.
lunId LUN ID.

The value ranges from 0 to n minus one. n indicates the maximum number of LUNs.


Diagnostic view

Usage Guidelines



Check the backed up metadata of LUN 0.

admin:/diagnose>mr checkcrc -o 19 -p 0 -l 0
Checking crc ... ,please wait patiently
check crc pass

System Response


Updated: 2020-01-17

Document ID: EDOC1000181575

Views: 731553

Downloads: 32

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