![]() ![]() Euro Truck Simulator 2 V 1.31 With All DLC and Updates PC Game 2018 Overview When a cache disk exists in the system, it is visible as a disk share named ‘cache’ (provided disk shares are being exported).Ħ.2 Running other software on top of unRAIDĪ cache disk is a hard drive that is not part of the normal parity-protected array.Euro Truck Simulator 2 V 1.31 With All DLC and Updates Free Download PC Game setup in single direct link for Windows. You may read data from or write data to the cache share just as you would any other disk share. As the cache disk is outside of the parity-protected array, writes will be much faster, but of course if this disk fails, all its data may be lost. The real power of a cache disk is realized when User Shares are enabled. The cache disk may be automatically ‘included’ in every user share. Hence any object – a file or directory - created on a user share is created on the cache disk (provided that enough space is available). Therefore, when you browse the files on a user share, the listings will transparently include objects on the cache disk as well as those on the other data disks. In order to prevent the cache disk from filling up, a utility called the ‘mover’ will move objects from the cache disk to the array proper. You can set a schedule that defines when the mover will ‘wake up’. The default schedule is to wake up at 3:40AM every day.Īs there is a lag between the time objects are created on the cache disk, and when they are moved to the array, it may be desirable to disable the cache disk for certain shares. In order to create a cache disk using the GUI: Each user share therefore has the option to disable the use of the cache disk for that share.Look at the very bottom of the page in the Disk Devices section for a disk 'slot' labeled Cache (the very last slot).Select any disk not in the array into that slot.This section is present on the Share Settings page when user shares are enabled, and a cache disk is present and formatted. free space specifies the minimum amount of free space that must exist on the Cache disk in order for the user share file system to create objects on the Cache disk. If there is less than this amount of free space then the object will be created on the array instead. Main article: Plugin/webGui/Cache Settings #Unraid nzbget free# The real, behind-the-scenes write speed of your unRAID server is unchanged by the addition of a cache drive. A cache drive simply grants you the fastest transfer that your hardware will allow by deferring the inevitable parity calculation until a later time (3:40 am server time, by default). How much of a write speed improvement can you expect to see from using a cache drive? That depends on your hardware. With a cache drive: unRAID 4.5.3 - average 50-60 MB/s, peak reported 101 MB/s* Without a cache drive: unRAID 4.5.3 - average 20-30 MB/s, peak reported 40 MB/s* These numbers represent average transfer speeds when writing data to unRAID:Īssuming that you have Gigabit LAN (GigE) capable network controllers on both sides of the transfer (the client PC and the unRAID server), a Gigabit LAN router or switch, appropriate network cables (Cat5e or Cat6), and modern SATA I or better hard drives, then you should see write speeds in the following ranges: Slower hardware will of course result in slower transfer speeds. So generally speaking, a server with a cache drive has write speeds 2-3x faster than the same server without a cache drive.Note: These figures (especially the averages) are based upon personal observations by Rajahal and upon reports from other reputable sources in these forums.The Mover is a utility that runs periodically to move files off the cache disk and onto parity-protected data disk(s). If Mover logging is enabled, the mover will record all its activity to the system log.īy default the mover is scheduled to run every day at 3:40AM. This may be changed by defining your own Mover schedule string in crontab format. If the mover finds no files to move, and the disks are spun-down, the disks will not spin up. Main article: Plugin/webGui/Mover Settings Conversely, file(s) will only be moved if they are not open for reading/writing – they will move the next night, when they are no longer open.The mover will not move any top-level directories which begin with a '.' character.Such directories will not exist in normal use, but an advanced user may use this knowledge to create directories which won't get moved. ![]() The mover will not move any files that exist in the root of the cache disk. ![]()
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