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Advanced O&M Command Reference

OceanStor 2800 V3 V300R006

This document is applicable to OceanStor 2800 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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fssnap show ro src_fs_os

fssnap show ro src_fs_os

Function

The fssnap show ro src_fs_os command is used to query snapshot information recorded in the object set of a file system.

Format

fssnap show ro src_fs_os spaceId

Parameters

Parameter

Description

Value

spaceId

File system ID.

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

Views

Diagnostic view

Usage Guidelines

None

Example

Query the snapshot information recorded in the object set of file system "1".

admin:/diagnose>fssnap show ro src_fs_os 1 
Src fs os: obsType 2, obsId 0x4000000001, obsDatasetObj 7, obsHoldCnt 0, snapCount 5: 
Src fs os dsSynced:  
 ---prevPrevSnapTxg          20 
 ---prevSnapObj              4015 
 ---prevSnapTxg              24 
 ---nextSnapObjOfPrevSnap 7 
 ---deadlistObj              4016 
 ---freeBpObj                4001 
 ---bgrFreeCapacity          0 
 ---snapTotal                0 
 ---dsDeadlist.dlObject      4016 
 ---dsDeadlist.dlHavetree 1.

System Response

The following table describes the parameter meanings.

Parameter

Meaning

obsType

Object set type.

obsId

Object set ID.

obsDatasetObj

MOS object ID.

obsHoldCnt

Reference count of the object set.

snapCount

Number of current snapshots.

prevPrevSnapTxg

Transaction ID of the second previous snapshot.

prevSnapObj

Object ID of the previous snapshot.

prevSnapTxg

Transaction ID of the previous snapshot.

nextSnapObjOfPrevSnap

Object ID of the current snapshot or MOS object set.

deadlistObj

Deadlist object ID.

freeBpObj

FreeBpObj object ID.

bgrFreeCapacity

Snapshot space reclaimed in the background.

snapTotal

Total space occupied by snapshots.

dsDeadlist.dlObject

Deadlist object ID.

dsDeadlist.dlHavetree

Whether the AVL tree of the deadlist object has been created.

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Updated: 2019-07-12

Document ID: EDOC1000138381

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