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Resource Type
[Figure] Resource Types in the MCCS for Linux
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The service manages the process sets managed by the linux daemon.
SCSI Reservation
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
It is the mirror set of shared disk in a cluster to an off-site DR node through WAN, so that mission critical service will be always-on from disasters.
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This resource controls the listener process of the Oracle DB.
Postgres Plus Advanced Server
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This resource controls the PPAS and detects whether PPAS is installed on a system or not, also controls relevant services and monitors their status.
Resource Type Attribute
<영문매뉴얼 설명>
Each resource type has a specific attribute value.
For an example, when compare to NIC and mirror disk, each service has different characteristics and has specific monitor interval, online/offline timeout and managed policies
In addition, even in the environment where high availability clusters are configured, if the network condition is not good, you need to adjust the monitoring timeout.
Depending on the requests, you can change the attribute of each type.
Resource type attribute can be checked in the resource type attribute menu of the MCCS web console.
<한글매뉴얼 설명>
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 적용됩니다.
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Detail on the "Specified Attribute" is also described on each page related to every resource in this manual. |
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Detail on the "Resource Attribute" is also described on the "Resource" in this manual. |
[Figure] Resource Type Attribute View
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| *이 표시된 속성의 경우, 온라인/오프라인 명령이 불가능한 네트워크 카드 리소스에서는 사용되지 않습니다 Among the attributes listed on the following tables, those with the "*" marks do not work on the network card resources that is unable to use the online/offline command. |
| Attribute | Description | Type | Default | Minimum Value/ | Edit | Note | |
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| ResourceType Attribute | Actions | Define the resource operation type. | STRING | X | |||
| Resource General Attribute | *BatchAfterOffline | This is a batch command to be executed after a resource is taken offline. | FILE | 8 to 254 characters of text | O | ||
*BatchAfterOnline | This is a batch command to be executed after a resource is brought online. | FILE | 8 to 254 characters of text | O | |||
| *BatchBeforeOffline | This is a batch command to be executed before a resource is brought online. | FILE | 8 to 254 characters of text | O | |||
| *BatchBeforeOnline | This is a batch command to be executed before a resource is taken offline. | FILE | 8 to 254 characters of text | O | |||
| *BatchTimeout | It is the waiting time until execution of batch command completes. If execution result is over this time, it is considered as a failure. | INTEGER | 300sec | 100 to 1500 seconds | O | ||
| *CleanProgram | This program is executed to initialize related resources and state when a failure occurs to a resource. This program must be written separately. | FILE | 8 to 254 characters of text | O | |||
| *CleanTimeout | It represents the time out until execution of CleanProgram is completed. | INTEGER | 60 sec | 0 to 300 seconds | O | ||
EnableTimeout | It is the waiting time until the execution of Enable completes. If the execution result is over this time, it is considered as a failure. (unit = second) | INTEGER | INFINITY | 1 to INFINITY seconds | O | ||
| FaultOnMonitorTimeouts | If the monitoring timeout take place as much as this value, it is regarded as fault. | INTEGER | 4 times | 0 to 12 times | O | ||
| MonitorInterval | It indicates the interval to the next monitoring when online resources are monitored. If the value is too small, it may result in malfunction. | INTEGER | 10 sec | 1 to 300 seconds | O | ||
| MonitorTimeout | It represents the time elapsed until monitoring is completed or terminated. | INTEGER | 60 sec | 1 to 300 seconds | O | ||
| OfflineMonitorInterval | It is the time interval until the next monitoring of offline resource. | INTEGER | 10 sec | 0 to 300 seconds | O | ||
| *OfflineTimeout | It indicates the maximum time until resources is taken offline successfully, stop or final judgment is made. | INTEGER | 300 sec | 1 to 1500 seconds | O | ||
| *OnlineRetryLimit | It indicate the number of retry count if it fails to start resource. | INTEGER | 0 time | 0 to 10 times | O | ||
| *OnlineTimeout | It indicates the maximum time until resources is brought online successfully, stop or final judgment is made. | INTEGER | 300 sec | 1 to 1500 seconds | O | ||
| *OnlineTrustTime | It is the time to reset the retry count of resource. | INTEGER | 600 sec | 60 to 3000 seconds | O | ||
| *OnlineWaitLimit | If the timeout occurs while determining whether the resource goes online properly, it will retry as many times as defined. | INTEGER | 2 times | 0 to 30 times | O | ||
| *Restartlimit | It shows the retry count before failover when the resource is determined as a failure. | INTEGER | 0 | 0 to 100 times | Shared Disk DR X Mirror Disk DR X Other Resources O | ||
| ToleranceLimit | When the monitoring results cannot be trusted , monitoring will be retried during the defined time. | INTEGER | 0 time | 0 to 100 times | O | ||
| WaitMonitorInterval | 온라인, 오프라인 대기중 리소스를 모니터링 할 때, 다음 모니터링까지의 시간 간격을 나타냅니다It indicates the time interval until starting the next monitoring when monitoring resources which are waiting for online or offline. | INTEGER | 1sec | 1 to 300 seconds | O | ||
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MCCS 는 사용자의 입력필드에 대한 입력값 제한 기능이 존재하며, 사용자가 잘못 입력한 데이터에 대해 자동 점검기능을 제공합니다has function to limit input values against user's input field, and it provides function detects automatically data which is input wrong by user's mistake. |
CLI Use (mctype command)
Sends command related the resource type. You can command to inquire about the attribute or change the attribute values.
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mctype [-u userid -pw password] -t resoruceType -a attribute |
Options
| Option | Description |
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-h | Display Help. |
| -u | Enter the user account. |
| -pw | Enter the password. |
-r | Designate the name of resource type to be modified. |
-a | Designate the attribute names for the resource type to be modified. |
-list | Display the list of resource types. |
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