Sam Kirchoff

Founder and GM LiveOptics.com

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Recent activity by Sam Kirchoff Recent activity Votes
  • VM Resource Distribution

    VM resource distribution is the first in a series of graphs designed to help understand allocation of resources at the VM level in virtualized environments. All Virtual Machines have some allocatio...

  • Right Sizing Virtual Machines

    Note: Following features are dependent on data availability. Certain VM environments will not allow visibility to provisioned vs. consumed resources or it might not be obtainable at the time. When...

  • Saturated Core Count

    The Live Optics collector captures CPU usage on a per Core basis from the host systems that it monitors. The Core count and Core performance is also captured, but individual CPU Core performance is...

  • SQL Server Auto Detection

    For years the Live Optics server/virtualization assessment, Optical Prime, has been a standard in the IT community for helping to gather and share server configurations and performance data. For Mi...

  • VM Whitespace & Negative Whitespace Values

    VM Whitespace is the opposite but related value to VM Occupancy.  VM Whitespace = 100% - VM Occupancy %. If a VM is 33% Occupied, then the VM contains 67% Whitespace; 100% - 33% = 67%. Understandin...

  • VMware VM Occupancy

    VM Occupancy is the actual amount of data the Operating System believes it’s managing in relationship to the actual storage the VM is taking up in the VMware Datastore. It is related to VM Whitespa...

  • RDM vs. Guest iSCSI connections

      There has long been some overlap between the definition of “Guest iSCSI connections” and VMware’s RDM (or what Microsoft might call a passthrough). They are similar in nature, but very different ...

  • IO Transfer Size vs. Formatting Block Size

      When drive formatting the Operating System will create what is called a Block size. The block size is the OS's logical grouping of space to deal with data placement of files etc… Live Optics make...

  • High Latency When I/O Is Very Low

    Ignore latencies that are abnormal when IOPS are low (say below 200). The reason lies within how latencies are measured by most servers OSes and Subsystems.  The operating systems add up a counter ...

  • NetApp Profiling a filer

    It’s widely known that NetApp has a fair share of the storage/filer market and it only makes sense that Live Optics supports the ability to profile this technology. There are two options to gather ...