Content Comparison

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MCCS basically uses TCP/UDP port from 14321 to 14324 and it is done mostly automatically. 
That ports are registered in linux iptables during installation automatically.

Disk

Mirror Disk

• Either volume size should be the same on both servers or volume size of standby server should be bigger for mirror disk environment.
• MCCS supports DAS, SAN, iSCSI
  (However, MCCS does not replicate the data on network driver like NAS.)

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• Support SAN, DAS and iSCSI.

스카시 예약 디스크

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SCSI Reservation disk

• It supports the shared storage that supports SCSI3-PR that is a kind of SAN protocols. 

User Program

MCCS detects not only the physical resources but also the user program listed below.

• Process service in a form of single process.
• Application service that consists of several processes of application.
• 리눅스에서 실행되는 리눅스 서비스Linux service running in Linux

When failure occurred in a group, MCCS will online the service resources on the standby which runs the same resources on the active. Users need to add the service resources mentioned above to manage by MCCS. 
Please refer to "7-Resource  of MCCS  User Guide" for more details about adding a resource by the user .
Before adding a resource, user should decide what kind of service of resource and read the following in advance and these attributes will be set.

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