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SAP Sybase SQL Anywhere, on-demand edition 1.0 Support Package 3 » SAP Sybase SQL Anywhere, on-demand edition 1.0 » Cloud administration

 

Enabling high availability for the cloud (dbcloudcmd utility)

Enable high availability to ensure that your cloud is always available by creating a cloud partner server and a cloud arbiter server.

Prerequisites

You must have the AlterCloud privilege.

You must have three separate servers running on three separate hosts in the cloud. The cloud partners cannot run on the same host as each other or the cloud arbiter.

Both cloud partners must comply with the cloud partner requirements. See Requirements for cloud high availability.

Context and remarks

When a cloud server is converted to a cloud partner or cloud arbiter, the TCP/IP, HTTP, and HTTPS ports that the cloud server is using at the time of conversion become fixed and remain the same for the life of the cloud.

Converting a server to a cloud partner or cloud arbiter can result in the cloud being temporarily unavailable. While the server is being configured, you cannot access the Cloud Console.

There can only be two cloud partners defined in the cloud.

 Task
  1. Run the SetCloudArbiter task on the target server to set the cloud arbiter.

    For example:

    dbcloudcmd run SetCloudArbiter arbiterhost#1
  2. Run the ConvertServerToCloudPartner task on the target server to create the second cloud partner.

    For example:

    dbcloudcmd run ConvertServerToCloudPartner partnerhost#1

Results

High availability is enabled in the cloud.

 See also