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Status Delivered
Workspace Spectrum LSF
Created by Guest
Created on Aug 14, 2018

Fail-Over mechanism for RTM data loss protection

Sometimes, we face unexpected situation.
It is so critical problem to customer.
Especailly, RTM provides most of data from RTM server memory to customer.
If we face unexpected situation, sometime RTM loses some data.

Because of memory based information providing, we can't recover some data, as like hosts and queue information.
For job information, we can recover data by using lsb.acct file but it is also not perfect data.

So customer wants and need methods to protect the data and prevent losing data, as like fail-over function.

  • Guest
    Reply
    |
    Aug 15, 2018

    Hello, I am the author of RTM and much of the underlying Cacti framework. Data Loss prevention is a function of a good Disaster Recovery plan and a well organized and executed deployment. There are many facets of this.

    1) Failover server (web)
    2) Failover server (database)
    3) Disaster Recovery Plan (backups (RRDfiles), verified recovery process)
    4) Planning for network interruptions between RTM and LSF clusters
    5) Load balancing between Web servers

    There are more facets of course, but generally these 5 need to be paid close attention to. Generally, we ask that RTM be placed on well performing hardware, where there is little chance of failover (motherboard for example). We have shown, with multiple deployments, years of un-interrupted service to RTM when that is done.

    Of the 5 facets above, the weakest link has always be in item 4). The rest are literally deployment specifics that have been overcome by some customers in various ways. Currently, we are looking at item 4) which COULD be delivered starting with the Cacti 1.x framework and it's remote data collectors. If we adopt Cacti 1.x and make specific changes to leverage the same offline data collection process, we will be able to tolerate a loss of connection between the LSF cluster and the main RTM system.

    However, timing of such an enhancement is presently undefined. Moving to the Cacti 1.x framework would be the first step. If you need help on items 1-3 and 5, I would suggest a professional services engagement with IBM to remediate those. You can always reach me at adamsla at us dot ibm dot com.