No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

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 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.
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
show space uberblock

show space uberblock

Function

The show space uberblock command is used to query uberblock information.

Format

show space uberblock file_system_id=? [ backup_id=? ] [ index=? ]

Parameters

Parameter

Description

Value

file_system_id=?

File system ID.

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

backup_id=?

Which uberblock will be read.

The value can be "0" or "1".

index=?

Uberblock index.

The value must be greater than or equal to "0", and less than or equal to "255".

Views

Developer view

Usage Guidelines

None

Example

  • Query uberblock information.
    developer:/>show space uberblock file_system_id=0  
     
      Space ID              : 0 
      Extent ID             : 0x400040000002/0x400040000003 
      Extent Offset         : 2048/2048 
      Physical Size         : 0 
      Last Synced Tno       : 19 
      Syncing Index         : 16 
      Ub Space Version      : 208 
      Ub Available          : YES 
      Ub Saved Checksum     : 4145507673 
      Ub Count Checksum     : 4145507673 
      Ub Magic              : 0x2bb10c 
      Ub Version            : 2 
      Ub Synced Tno         : 19 
      Ub Synced Time Second : 2015-07-27/12:09:07 UTC 
      Ub Index              : 15 
      Ub UUID               : 36 96 82 2c f6  b  3 36 96 6f 52 b3 71 55 8b 73  
      Ub Crc                : 1
  • Query information about uberblocks by specifying the index.
    developer:/>show space uberblock file_system_id=0 index=1 
      
      Space ID              : 0 
      Extent ID             : 0x400040000002/0x400040000003 
      Extent Offset         : 2048/2048 
      Physical Size         : 0 
      Last Synced Tno       : 19 
      Syncing Index         : 16 
      Ub Space Version      : 208 
      Ub Available          : YES 
      Ub Saved Checksum     : 4145507673 
      Ub Count Checksum     : 4145507673 
      Ub Magic              : 0x2bb10c 
      Ub Version            : 2 
      Ub Synced Tno         : 19 
      Ub Synced Time Second : 2015-07-27/12:09:07 UTC 
      Ub Index              : 15 
      Ub UUID               : 36 96 82 2c f6  b  3 36 96 6f 52 b3 71 55 8b 73  
      Ub Crc                : 1
  • Query information about a specified uberblock by specifying the index.
    developer:/>show space uberblock file_system_id=0 backup_id=1 index=1  
     
      Space ID              : 0 
      Extent ID             : 0x400040000002/0x400040000003 
      Extent Offset         : 2048/2048 
      Physical Size         : 0 
      Last Synced Tno       : 19 
      Syncing Index         : 16 
      Ub Space Version      : 208 
      Ub Available          : YES 
      Ub Saved Checksum     : 1894757535 
      Ub Count Checksum     : 1894757535 
      Ub Magic              : 0x2bb10c 
      Ub Version            : 2 
      Ub Synced Tno         : 3 
      Ub Synced Time Second : 2015-07-27/08:57:54 UTC 
      Ub Index              : 211 
      Ub UUID               : 36 96 82 2c f6  b  3 36 96 6f 52 b3 71 55 8b 73  
      Ub Crc                : 1

System Response

The following table describes the parameter meanings.

Parameter

Meaning

Space ID

Space ID.

Extent ID

Extent ID of the uberblock.

Extent Offset

Uberblock's offset in the extent.

Physical Size

Physical size of the uberblock in the extent.

Last Synced Tno

Uberblock transaction ID of the last successful cache flushing.

Syncing Index

Index of the uberblock for which the next cache flushing will be performed.

Ub Available

Whether the uberblock is available or not.

Ub Saved Checksum

Checksum stored in the uberblock.

Ub Count Checksum

Checksum calculated by the uberblock.

Ub Magic

Magic number of the uberblock.

Ub Version

Version of uberblock.

Ub Synced Tno

Cache flushing ID of the uberblock.

Ub Synced Time Second

Cache flushing time of the uberblock (UTC).

Ub Index

Index of the uberblock.

Ub UUID

UUID of the uberblock.

Ub Crc

CRC of the uberblock.

Translation
Download
Updated: 2019-07-12

Document ID: EDOC1000138389

Views: 501712

Downloads: 85

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next