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Advanced O&M Command Reference

OceanStor 18000 and 18000F V5 Series V500R007

This document is applicable to OceanStor 18500 V5, 18800 V5, 18500F V5, and 18800F V5. 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.

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grain showMergeSmallTreeItem

grain showMergeSmallTreeItem

Function

The grain showMergeSmallTreeItem command is used to view bitmap information about small blocks on a merging tree.

Format

grain showMergeSmallTreeItem file_system_id type start_extent_id

Parameters

Parameter

Description

Value

file_system_id File system ID.

To obtain the value, run the "show file_system general" command.

type Data type.

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

  • "0": metadata.
  • "1": data.
start_extent_id Start extent ID.

The value is a hexadecimal number in the format of "0X". You can enter "0".

Views

Diagnostic view

Usage Guidelines

This command is applicable only to the local controller.

Example

View bitmap information about small blocks on the merging tree of file system "0".

admin:/diagnose>grain showMergeSmallTreeItem 0 0 0
ExtentId : 0x40004000101a
Bitmap   :
           0:0000111000010000
           1:0000000000000000
           2:0000111111111111
           3:1111111111111110
           4:0000000000000000
           5:0000000000000000
           6:0000000000000000
           7:1111111100000000
           8:0000000000000000
           9:0000000000000000
           10:1111000001000100
           11:0000000000000000
           12:0000001111100101
           13:1111111111111110
           14:1111110111111111
           15:1111111111111101
           16:1010101111111111
           17:0000000000000000
           18:0011111111010000
           19:1111111100011111
           20:0000000000000000
           21:1111111000000111
           22:0000000000000000
           23:1111111111110000
           24:0000000001111111
           25:0000000000000000
           26:0000000000000000
           27:0000000000000000
           28:1111111100000000
           29:0000000000000000
           30:0000000000000000
           31:0000000000000000

System Response

The following table describes the parameter meanings.

Parameter

Meaning

ExtentId

Extent ID.

Bitmap

Bitmap information.

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Updated: 2020-01-17

Document ID: EDOC1000181602

Views: 763673

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