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 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.
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).
volume io

volume io

Function

The volume io command is used to view the I/O information of thin or thick LUNs.

Format

volume io

Parameters

None

Views

Diagnostic view

Usage Guidelines

None

Example

View the I/O information of thin or thick LUNs.

admin:/diagnose>volume io 
Name Sum BackGood BackBad NotBack Latency 
---------------------------- -------- -------- ------- ------- ------- 
Thick volume query extent 5120 5120 0 0 0 
Thick volume alloc extent 0 0 0 0 0 
Read req alloc page 0 0 0 0 0 
Cow req alloc page 0 0 0 0 0 
Thick volume no query extent 0 0 0 0 0 
Copy on write 0 0 0 0 0 
Read origin cache when cow 0 0 0 0 0 
Write extent when cow 0 0 0 0 0 
Read origin data when read 0 0 0 0 0 
Read origin cache when read 0 0 0 0 0 
Read extent when read 0 0 0 0 0 
Check Lba Error 0 0 0 0 0 
Thin Pool Full 0 0 0 0 0 
Edev Vol to Bdm 0 0 0 0 0 
Erase Bgr to Volume 0 0 0 0 0 
Erase Bgr IO 0 0 0 0 0 
Erase Bgr Commit 0 0 0 0 0 
Edev Check DIF 0 0 0 0 0 
Vol to Virtual lun 0 0 0 0 0 
Retry free nodes 0 0 0 0 0 
Query lba bmp 0 0 0 0 0 
Query lba bmp in cache 0 0 0 0 0 
Query lba bmp apply lock 0 0 0 0 0 
Query lba bmp traverse 0 0 0 0 0 
Query lba bmp search 0 0 0 0 0 
Query lba bmp in btree 0 0 0 0 0 
Snap cow 0 0 0 0 0 
Snap cow query 0 0 0 0 0 
Snap cow query read vol 0 0 0 0 0 
Snap cow read 0 0 0 0 0 
Snap cow read data 0 0 0 0 0 
Snap cow read cache 0 0 0 0 0 
Snap cow read share 0 0 0 0 0 
SHOW IO MAX TIME 
Index MaxOt (ms) 
----- ---------- 
0 0  
1 0  
2 0  
3 0  
4 0  
5 0  
6 8  
7 0  
8 0  
9 0 
Max brgin io :4096 
Max brgin bandwidth :2097152

System Response

The following table describes the parameter meanings.

Parameter

Meaning

Thick volume query extent

Query extent.

Thick volume alloc extent

Allocation extent.

Read req alloc page

Read page application.

Cow req alloc page

Copy-on-write (COW) page application.

Thick volume no query extent

Count of thick LUNs without query extents.

Copy on write

Count of COWs.

Read origin cache when cow

Count of read source LUN caches during

COW.

Write extent when cow

Count of write extents during COW.

Read origin data when read

Snapshot read redirected to the source data.

Read origin cache when read

Snapshot read redirected to the source cache.

Read extent when read

Snapshot read extent.

Check Lba Error

Logical block addressing (LBA) verification.

Thin Pool Full

Statistics on I/Os when a pool has run out of

its storage space.

Edev Vol to Bdm

Count of I/Os that module volume sends to

module BMD when the eDevlun exists.

Erase Bgr to Volume

Count of I/Os that the destruction background

sends to module volume.

Erase Bgr IO

Count of I/Os in the destruction background.

Erase Bgr Commit

Times that the destruction background

submits metadata.

Edev Check DIF

Times that the eDevlun finds DIF errors.

Vol to Virtual lun

Count of I/Os redirected from a volume to a

virtual LUN.

Retry free nodes

Number of attempts to re-free the nodes.

Max brgin io

Maximum number of concurrent I/Os.

Max brgin bandwidth

Maximum bandwidth.

Translation
Download
Updated: 2019-07-11

Document ID: EDOC1000181619

Views: 640644

Downloads: 256

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