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Hi,<br />
&nbsp; &nbsp; I have a question about the &quot;Physical Disk - Average Disk Queue Length&quot; windows performance counter.<br />
&nbsp; &nbsp; &nbsp;<br />
&nbsp; &nbsp; &nbsp;I have a physical disk (500GB @ 7200 rpm) on my host machine (H:). I have installed Virtual Server witch a .vhd virtual disk that is located to the same physical disk mentioned above. (H:).<br />
&nbsp; &nbsp; &nbsp;Does anyone have any idea why, when performing high disk activity inside the Virtual machine, opening the Perfmon from inside the Virtual machine, the AVG disk queue length for the drive has a value of 5 but the Perfmon from the Host OS shows only 0.9. Both PerfMons are ran at the same time.<br />
<br />
<br />
Thanks for your answers<br />
<br />

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Hi,
    I have a question about the "Physical Disk - Average Disk Queue Length" windows performance counter.
     
     I have a physical disk (500GB @ 7200 rpm) on my host machine (H:). I have installed Virtual Server witch a .vhd virtual disk that is located to the same physical disk mentioned above. (H:).
     Does anyone have any idea why, when performing high disk activity inside the Virtual machine, opening the Perfmon from inside the Virtual machine, the AVG disk queue length for the drive has a value of 5 but the Perfmon from the Host OS shows only 0.9. Both PerfMons are ran at the same time.


Thanks for your answers



Physical Disk - Average Disk Queue Length

Storage devices include any device used for storing and retrieving digital information. Hard disk drives (HDDs) use one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), but HDDs remain the dominant medium for secondary storage due to advantages in price per bit and per-device recording capacity. CD-RW (Compact Disc-ReWritable) is a digital optical disc storage format that allows information to be stored outside the mechanical HDD.

Storage Hardware

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.