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  2. Non-RAID drive architectures - Wikipedia

    en.wikipedia.org/wiki/Non-RAID_drive_architectures

    JBOD (just a bunch of disks or just a bunch of drives) is an architecture using multiple hard drives exposed as individual devices.Hard drives may be treated independently or may be combined into one or more logical volumes using a volume manager like LVM or mdadm, or a device-spanning filesystem like btrfs; such volumes are usually called "spanned" or "linear | SPAN | BIG".

  3. Thermodynamic diagrams - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_diagrams

    The main feature of thermodynamic diagrams is the equivalence between the area in the diagram and energy. When air changes pressure and temperature during a process and prescribes a closed curve within the diagram the area enclosed by this curve is proportional to the energy which has been gained or released by the air.

  4. Water retention curve - Wikipedia

    en.wikipedia.org/wiki/Water_retention_curve

    Water retention curve is the relationship between the water content, θ, and the soil water potential, ψ. The soil moisture curve is characteristic for different types of soil, and is also called the soil moisture characteristic. It is used to predict the soil water storage, water supply to the plants (field capacity) and soil aggregate stability.

  5. Phase diagram - Wikipedia

    en.wikipedia.org/wiki/Phase_diagram

    The curves on the phase diagram show the points where the free energy (and other derived properties) becomes non-analytic: their derivatives with respect to the coordinates (temperature and pressure in this example) change discontinuously (abruptly).

  6. Pressure–volume diagram - Wikipedia

    en.wikipedia.org/wiki/Pressure–volume_diagram

    The path between each state consists of some process (A through D) which alters the pressure or volume of the system (or both). Generalized PV diagram A key feature of the diagram is that the amount of energy expended or received by the system as work can be measured because the net work is represented by the area enclosed by the four lines.

  7. Compressor characteristic - Wikipedia

    en.wikipedia.org/wiki/Compressor_characteristic

    Actual characteristic curve of the compressor is the modified version of the theoretical characteristic curve. In this we take care of both shock and friction losses as shown in the Figure 4. As seen in the figure the steepness of the curve increases at higher mass flow rates because since there will be higher frictional losses at high flow ...

  8. Data striping - Wikipedia

    en.wikipedia.org/wiki/Data_striping

    Data striping can also be achieved with Linux's Logical Volume Management (LVM). The LVM system allows for the adjustment of coarseness of the striping pattern. LVM tools will allow implementation of data striping in conjunction with mirroring. LVM offers the added benefit of read and write caching on NVM Express for slow spinning storage. LVM ...

  9. Stream function - Wikipedia

    en.wikipedia.org/wiki/Stream_function

    Then every point on the curve has coordinate =. Let the total length of the curve A P {\displaystyle AP} be L {\displaystyle L} . Suppose a ribbon-shaped surface is created by extending the curve A P {\displaystyle AP} upward to the horizontal plane z = b {\displaystyle z=b} ( b > 0 ) {\displaystyle (b>0)} , where b {\displaystyle b} is the ...