OceanStor Disk Domains Test

This test auto-discovers the disk domains in the target Huawei OceanStor, and for each disk domain, this test reports the status pertaining to the health of the disk domain and the space usage of each disk domain on the target storage system. Using this test, administrators can also analyze whether/not the hot spare capacity has enough space to replace a failed disk.

Target of the test: Huawei OceanStor

Agent deploying the test: A remote agent

Outputs of the test: One set of results for each disk domain in the Huawei OceanStor that is being monitored.

Descriptor: Disk Domain

Configurable parameters for the test

Parameter

Description

Test period

How often should the test be executed.

Host

The IP address of the target host to be monitored.

SNMPPort

The port at which the monitored target exposes its SNMP MIB; the default value is 161.

Data Over TCP

By default, in an IT environment, all data transmission occurs over UDP. Some environments however, may be specifically configured to offload a fraction of the data traffic – for instance, certain types of data traffic or traffic pertaining to specific components – to other protocols like TCP, so as to prevent UDP overloads. In such environments, you can instruct the eG agent to conduct the SNMP data traffic related to the monitored target over TCP (and not UDP). For this, set this flag to Yes. By default, this flag is set to No.

Timeout

Specify the duration (in seconds) within which the SNMP query executed by this test should time out in this text box. The default is 10 seconds.

SNMPVersion

By default, the eG agent supports SNMP version 1. Accordingly, the default selection in the SNMPversion list is v1. However, if a different SNMP framework is in use in your environment, say SNMP v2 or v3, then select the corresponding option from this list.

SNMPCommunity

The SNMP community name that the test uses to communicate with the switch. This parameter is specific to SNMP v1 and v2 only. Therefore, if the SNMPVersion chosen is v3, then this parameter will not appear.

Context

This parameter appears only when v3 is selected as the SNMPVERSION. An SNMP context is a collection of management information accessible by an SNMP entity. An item of management information may exist in more than one context and an SNMP entity potentially has access to many contexts. A context is identified by the SNMPEngineID value of the entity hosting the management information (also called a contextEngineID) and a context name that identifies the specific context (also called a contextName). If the USERNAME provided is associated with a context name, then the eG agent will be able to poll the MIB and collect metrics only if it is configured with the context name as well. In such cases therefore, specify the context name of the USERNAME in the CONTEXT text box. By default, this parameter is set to none.

Username

This parameter appears only when v3 is selected as the SNMPVERSION. SNMP version 3 (SNMPv3) is an extensible SNMP Framework which supplements the SNMPv2 Framework, by additionally supporting message security, access control, and remote SNMP configuration capabilities. To extract performance statistics from the MIB using the highly secure SNMP v3 protocol, the eG agent has to be configured with the required access privileges - in other words, the eG agent should connect to the MIB using the credentials of a user with access permissions to be MIB. Therefore, specify the name of such a user against this parameter.

AuthPass

Specify the password that corresponds to the above-mentioned Username. This parameter once again appears only if the SNMPversion selected is v3.

Confirm Password

Confirm the AuthPass by retyping it here.

AuthType

This parameter too appears only if v3 is selected as the SNMPversion. From the AuthType list box, choose the authentication algorithm using which SNMP v3 converts the specified username and password into a 32-bit format to ensure security of SNMP transactions. You can choose between the following options:

  • MD5 - Message Digest Algorithm
  • SHA - Secure Hash Algorithm
  • SHA224 - Secure Hash Algorithm 224 bit
  • SHA256 - Secure Hash Algorithm 256 bit
  • SHA384 - Secure Hash Algorithm 384 bit
  • SHA512 - Secure Hash Algorithm 512 bit

EncryptFlag

This flag appears only when v3 is selected as the SNMPVersion. By default, the eG agent does not encrypt SNMP requests. Accordingly, this flag is set to No by default. To ensure that SNMP requests sent by the eG agent are encrypted, select the Yes option.

EncryptType

If the EncryptFlag is set to Yes, then you will have to mention the encryption type by selecting an option from the EncryptType list. SNMP v3 supports the following encryption types:

  • DES - Data Encryption Standard
  • 3DES - Triple Data Encryption Standard
  • AES - Advanced Encryption Standard
  • AES128 - Advanced Encryption Standard 128 bit
  • AES192 - Advanced Encryption Standard 192 bit
  • AES256 - Advanced Encryption Standard 256 bit

EncryptPassword

Specify the encryption password here.

Confirm Password

Confirm the encryption password by retyping it here.

EngineID

This parameter appears only when v3 is selected as the SNMPVersion. Sometimes, the test may not report metrics when AES192 or AES256 is chosen as the Encryption type. To ensure that the test report metrics consistently, administrators need to set this flag to Yes. By default, this parameter is set to No.

Measurements made by the test

Measurement

Description

Measurement Unit

Interpretation

Health status

Indicates the health status of this disk domain.

 

The values reported by this measure and its numeric equivalent are mentioned in the table below:

Measure Value Numeric Value
Fault 0
Offline 1
Pre-Fail 2
Partially Broken 3
Degraded 4
Bad Sectors Found 5
Bit Errors Found 6
Low Battery 7
Inconsistent 8
No Input 9
Single Link Fault 10
Invalid 11
Single link 12
No Redundant Link 13
Busy 14
Consistent 15
Write Protect 16
Normal 17

Note:

By default, this measure reports the above-mentioned Measure Values while indicating the health status of the disk domain in the target Huawei OceanStor. However, in the graph of this measure, states will be represented using the corresponding numeric equivalents only - i.e., 0 to 17.

Running status

Indicates the running status of this disk domain.

 

The values reported by this measure and its numeric equivalent are mentioned in the table below:

Measure Value Numeric Value
Fault 1
Abnormal 2
Not running 3
Running failed 4
Running fail 5
Stopped 6
Stopping 7
Stop failed 8
Start failed 9
Standby 10
Disabled 11
Offline disable 12
Offline 13
Power-on failed 14
Repairing 15
Link Down 16
Error 17
Deactivating 18
Canceling 19
Canceled 20
Failed to synchronize 21
Offline frozen 22
Closed 23
Removing 24
Out of service 25
Inactive 26
Powering off 27
Discharging 28
Power Lost 29
Interrupted 30
Invalid 31
Not start 32
Unsynchronized 33
Not existed 34
Suspended 35
Suspending 36
Sleep in high temperature 37
Power failure rotection 38
Spin down 39
Powered off 40
Pre-copy 41
Copyback 42
Reconstruction 43
Expansion 44
Unformatted 45
Formatting 46
Unmapped 47
Initial synchronizing 48
Consistent 49
Synchronizing 50
Synchronized 51
Split 52
Online 53
Locked 54
Enabled 55
Balancing 56
To be recovered 57
Queuing 58
Copying 59
Completed 60
Paused 61
Reverse synchronizing 62
Activated 63
Restore 64
Idle 65
Charging 66
Charging completed 67
Upgrading 68
Waiting 69
Initializing 70
Apply change 71
Online disable 72
Online frozen 73
In service 74
Running normal 75
Running success 76
Running success 77
About to synchronize 78
Synchronizing data 79
Migrating 80
Migrated 81
Activating 82
Decommissioning 83
Decommissioned 84
Recommissioning 85
Replacing node 86
Scheduling 87
Pausing 88
Overload 89
To be switch 90
Switching 91
To be cleanup 92
Forced start 93
Job completed 94
Partition Migrating 95
Mount 96
Umount 97
Installing 98
To Be Synchronized 99
Connecting 100
Service Switching 101
Deleting 102
Modifying 103
Running(clearing data) 104
Running(synchronizing data) 105
Restore Fault 106
Cut Over 107
Erasing 108
Verifying 109
Creating 110
Running 111
Starting 112
Started 113
Link Up 114
Powering on 115
Normal 119

Note:

By default, this measure reports the above-mentioned Measure Values while indicating the running status of the disk domain in the target Huawei OceanStor. However, in the graph of this measure, states will be represented using the corresponding numeric equivalents only - i.e., 1 to 115, or 119.

Total capacity

Indicates the total capacity/size of this disk domain.

TB

 

Free capacity

Indicates the size of this disk domain that is available for use.

TB

A high value is desired for this measure.

Used capacity

Indicates the size of this disk domain that is already utilized.

TB

A value close to the Total capacity measure indicates that the disk is running out of space.

Disk domain utilization

Indicates the percentage of this disk domain that is already utilized.

Percent

A value close to 100 percent indicates that the disk domain is running out of space.

Hot spare capacity

Indicates the size of the hot spare capacity of this disk domain.

TB

Hot spare capacity is the amount of storage space that is reserved for replacing a failed disk in a storage system. The hot spare capacity is used to prevent data loss or performance degradation caused by a member disk failure.

A high value is desired for this measure.

Used hot spare capacity

Indicates the size of the hot spare capacity of this disk domain that is already utilized.

TB

A value close to the Hot spare capacitymeasure indicates that the disk domain is running out of space.