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Advanced O&M Command Reference

OceanStor 5000, 5000F, 6000, and 6000F V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5110F V5, 5300 V5, 5500 V5, 5600 V5, 5800 V5, 6800 V5, 5300F V5, 5500F V5, 5600F V5, 5800F V5, and 6800F 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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nmgr showseginfo

nmgr showseginfo

Function

The nmgr showseginfo command is used to show the information of the segment to which instance objects of a node manager are allocated in the system.

Format

nmgr showseginfo -d index -s segment id

Parameters

Parameter

Description

Value

index

Index of the node manager instance.

The value can be obtained by running the nmgr showallinst command.

segment id

The segment ID for the node manager instance.

The value can be obtained by running the nmgr showallinst command.

Views

Diagnostic view

Usage Guidelines

The nmgr showseglist command can be used to query the segment information for the node manager instance.

Example

Query the information of segment 0x40000005 and index 0.

admin:/diagnose> nmgr showseginfo -d 0 -s 0x40000005 
Segment ID                   : 0x40000005 
NodeInst                     : 0x1000000100000000 
Segment Size                 : 131072(sector) 
Node Size                    : 32(sector) 
Max node num                 : 4093 
Alloced Node Num             : 45 
Pend Alloced Node Num        : 45 
Next Alloc Node Index        : 45 
Pend Next Alloc Node Index : 45 
Flags                        : 16384 
Next Segment ID              : 0xffffffffffffffff 
Pend Next Segment ID         : 0xffffffffffffffff 
Next Alloc Segment ID        : 0xffffffffffffffff 
Pend Next Alloc Segment ID : 0xffffffffffffffff 
Free Region Index            : 0 
Pend Free Region Index       : 0 
Segment Version              : 2 
Write Num                    : 24 
Name                         : Free Region 
Free Region Page Num         : 8 
Node Count                   : 0 
Pending Node Num             : 0 
Head                         : 0 
Pending Head                 : 0 
Tail                         : 0 
Pending Tail                 : 0

System Response

The following table describes the parameter meanings.

Parameter

Meaning

Segment ID

Segment ID.

NodeInst

Volume ID of the instance.

Segment Size

Segment size.

Node Size

Node size.

Max node num

Number of nodes allocated to the segment.

Alloced Node Num

Maximum number of nodes that can be allocated to the segment.

Pend Alloced NodeNum

Number of pending allocated nodes.

Next Alloc Node Index

Position of the next allocated node.

Pend Next Alloc Node Index

Position of the next updated node that can be allocated during the task.

Flags

Status flag.

Next Segment ID

Next segment ID.

Pend Next Segment ID

Next segment ID updated during the task.

Next Alloc Segment ID

Next segment ID in alloc_seg_list.

Pend Next Alloc Segment ID

Next segment ID updated during the task in alloc_seg_list.

Name

The unallocated area of the segment.

Free Region Page Num

Ratio of this area to the page.

Node Count

Number of active nodes.

Pending Node Num

Number of pending nodes.

Head

Head of the active queue.

Pending Head

Head of the pending queue.

Tail

Tail of the active queue.

Pending Tail

Tail of the pending queue.

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Updated: 2019-07-11

Document ID: EDOC1000181619

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