Versions Compared

Version Old Version 37 New Version Current
Changes made by

정은진

환기장

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

SCSI reservation agents manage LUN based locking using the SCSI3-PR (Persistent Reservation) protocols that shared storages support such as SAN.
This function can prevent data losses when no nodes in a cluster know the status of other nodes.

...

Shared disk DR

 

MCCS 양 노드간 공유되는  디스크를  원격지 서버로 복제, 재해 발생시 데이터를 안전하게 보존합니다. 
원격지 서버에는 MCCS가 설치되지 않습니다. 따라서 별도의 서비스 복구대책의  수립이 필요합니다. 

 

VxVM 디스크 그룹

 

Veritas Windows Volume  Manager의 디스크 그룹을 관리하기 위해 사용합니다.
디스크 그룹의 하위 볼륨 들에 대해서는 개별 관리 하지 않습니다.The disk shared between the two nodes of MCCS is copied to a remote server, so that data can be safely protected from disasters.
A remote server has no MCCS installed in it. Thus, you need to establish an additional service recovery plan.

VxVM disk group

 It is used to manage a disk group of Veritas Windows Volume Manager.
The sub volumes of a disk group are not individually managed.

Oracle database

This resource controls the Oracle database.
It detects the Oracle database installed on the system, controls the service and monitors the status.

 


 

When you add a resource, this will be classified under the type as tree view structure.
For an example, when you add two NIC resource, these will be classified under the NIC type as shown below.
If you edit an attribute of resource type, this will affect all of the resources classified this type.

...


As shown in the figure, public and private 1 are the resources included in the NIC resource type.
If you edit an attribute of resource type, this will affect all of the resources classified this type.
For instance, if you set the MonitorInterval attribute value that defines monitoring periods to 30 seconds, the NIC resources defined as public and private1 will be all switched to 30 seconds.

 

Resource Type Attribute

리소스 타입 별로 다른 속성 값들을 가지고 있습니다. (ex. 동일한 속성명이라도 리소스에 따라 다른 값을 가질 수 있습니다.)
또한, 리소스 타입의 속성을 변경 했을 경우 , 그룹내 해당 리소스타입에 속하는 모든 리소스에 적용됩니다Each resource type has a different attribute value. (ex. Despite the same attribute name, it can have a different value depending on the resource.)
In addition, if you change the attribute of resource type, it will be applied to all the resources of the type within the group.

[Figure] Resource Type Attribute View

...

AttributeDescriptionTypeDefaultEditNote
Actions

Define the resource operation type.
OnOff value is the command resource. None is the resource command only for monitoring.

STRING X 
ArgList

It represents the necessary arguments for each type of resource.
Based on these arguments, you can create variables in an agent and characterize the types.
You can check it in the type.json file but the value cannot be modified by a user.

STRING X 
CleanTimeout

It represents the time out until execution of CleanProgram is finished.
When the limit is exceeded, it will be forcefully terminated.

INTEGER60 secO 
FaultOnMonitorTimeouts

If the timeout specified by this value occurs, it is regarded as trouble.
If it is '0', it is not regarded as trouble.

INTEGER4 timesO 
MonitorInterval

It represents the time interval until the next monitoring of online resource.
If the value is too small, it could mistakenly start monitoring before receiving the proper monitoring results.
If the value is too big, then it will take too long until it detects the status changes.

INTEGER10 secO 
MonitorTimeoutIt represents the time elapsed until monitoring is finished or terminated.INTEGER10 secO 
OfflineMonitorInterval

It is the time interval until the next monitoring of offline resource.
If the time interval is '0', the offline resources will not be monitored.

INTEGER60 secO 
OfflineTimeout It represents the max time until the final decision is made on the success/failure of resource going offline.INTEGER300 secO 
OnlineRetryLimitSet the number of retries if the resource fails to restart.INTEGER0 timeO 
OnlineTimeoutIt represents the max time until the final decision is made on the success/failure of resource going online.INTEGER300 secO 
OnlineTrustTime

It is the time to reset the restart number of resource.
Initialize the number of retries if the normal condition is maintained for the duration specified after the resource is started.

INTEGER600 secO 
OnlineWaitLimit

If the time our occurs while determining whether the resource goes online properly, it will retry as many times as designated.
It is the time interval of retry is defined in 'MonitorInterval'.

NTEGER2 timesO 
ToleranceLimit

When the monitoring results cannot be trusted , monitoring will be retried as many times as designatedduring the designated time.
For instance, if the network condition is not good, and you cannot trust the ping test results, then you need to perform monitoring several more times until you get a good result.

INTEGER0 timeO 

...

Modify the MonitorInterval attribute values for MirrorDisk.

 

mctype -u admin -pw password -modify -t resourceType -a attribute attributeattribute attribute_value

 

list

Display the attribute values for all the resource types.
(If you enter -t resourceType, the attribute values for the designated resource type will be displayed.)

 

mctype -u admin -pw password -list [-t resourceType]