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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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grain checkGrainRaid6Info

grain checkGrainRaid6Info

Function

The grain checkGrainRaid6Info command is used to show statistics on Grain RAID 6 space.

Format

grain checkGrainRaid6Info <fsId>

Parameters

Parameter

Description

Value

fsId

File System ID.

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

Views

Diagnostic view

Usage Guidelines

None

Example

Show statistics on Grain RAID 6 space.

admin:/diagnose>grain checkGrainRaid6Info 2 
=============================================Raid6================================================== 
The meta used raid6 state: 1 (1-Yes, 0-No) 
=============================================Grain================================================== 
GrainUsed(data/meta):                                83886080                  46278656 
GrainAlloc(data/meta):                            12896403456                2237090816 
GrainDefree(data/meta):                                     0                   1669120 
GrainReserve(data/meta):                            890273792                 220150784 
=============================================Detail================================================== 
RepairLost(data/meta):                                      0                         0 
AlgTreeSize(data/meta):                              94928896                  42270720 
AlgTreeSize before(data/meta):                       94928896                  33816576 
MergeTreeSize(data/meta):                             6815744                 162795520 
MergeTreeSize before(data/meta):                      6815744                 130236416 
AllocQueTotalInSize(data/meta):                   13853786112                2511339520 
AllocQueTotalOutSize(data/meta):                  13014925312                2479882240 
FreeQueTotalInSize(data/meta):                      100663296                  52428800 
FreeQueTotalOutSize(data/meta):                      67108864                  52428800 
NodeAlgSize(data/meta):                                     0                    404480 
AlgTreeNodeSize(data/meta):                             81920                     25600 
MergeTreeNodeSize(data/meta):                           56320                     92160 
ExtentTreeNodeSize(data/meta):                         256000                     76800 
=============================================CheckResult============================================ 
SpaceStatistic(data/meta):                             OK                        OK 
computeReserve(data/meta):                    13853786112                2511339520

System Response

The following table describes the parameter meanings.

Parameter

Meaning

GrainUsed(data/meta)

Space used by grain and space in the release queue.

GrainAlloc(data/meta)

Space used by grain and space allocated to SPC.

GrainDefree(data/meta)

Space in the grain release queue.

GrainReserve(data/meta)

Space reserved by Grain.

RepairLost(data/meta)

Discarded space after repair.

AlgTreeSize(data/meta)

Space held by the allocation tree.

AlgTreeSize before(data/meta)

Space held by the allocation tree (which is not calculated with the RAID 6 method).

MergeTreeSize(data/meta)

Space held by the merge tree.

MergeTreeSize before(data/meta)

Space held by the merge tree (which is not calculated with the RAID 6 method).

AllocQueTotalInSize(data/meta)

Total space added to the allocation queue.

AllocQueTotalOutSize(data/meta)

Total space removed from the allocation queue.

FreeQueTotalInSize(data/meta)

Total space added to the release queue.

FreeQueTotalOutSize(data/meta)

Total space removed from the release queue.

NodeAlgSize(data/meta)

Total space held by the node allocator.

AlgTreeNodeSize(data/meta)

Node space occupied by the allocation tree.

MergeTreeNodeSize(data/meta)

Node space occupied by the merge tree.

ExtentTreeNodeSize(data/meta)

Node space occupied by the extent tree.

SpaceStatistic(data/meta)

Space statistics verification.

computeReserve(data/meta)

Calculated space reserved by Grain.

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Updated: 2019-07-11

Document ID: EDOC1000181619

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