ESXi

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  • 1.  rdm occupancy

    Posted Mar 04, 2013 01:28 PM

    Hello,

    does anybody know if there are best practices about the occupancy of the rdm disks?

    I know the threshold alarms in datastores, but I don't know if these applies to rdm disks.

    Thanks!



  • 2.  RE: rdm occupancy

    Posted Mar 04, 2013 01:34 PM

    As far as  I can tell  -- RDMs space utilization cannot be monitored from the VC like datastores - since they are directly accessed by the guest - do you have the monitoring enabled at the VM level?

    HTH



  • 3.  RE: rdm occupancy

    Posted Mar 04, 2013 02:09 PM

    I'm not worried about the monitoring, I just would know if there is any best practice about the occupancy level of the rdm.

    Thanks!



  • 4.  RE: rdm occupancy

    Posted Mar 04, 2013 05:11 PM

    No different than any other device in the VM - e.g. its dependent on application, operating system, etc.



  • 5.  RE: rdm occupancy

    Posted Mar 05, 2013 07:18 AM

    So is there no problem to have an rdm near 100% full?



  • 6.  RE: rdm occupancy

    Posted Mar 05, 2013 07:29 AM

    it may/will crash the DB/App using the RDM lun with in the guest OS - it will not affect any other guests - unlike if a datastore were full

    helps??



  • 7.  RE: rdm occupancy

    Posted Mar 05, 2013 03:58 PM

    VMware / ESXi doesn't care.

    Your application or array might, but that depends on your application and array.