My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts. To view full details, sign in with your My Oracle Support account.ĭon't have a My Oracle Support account? Click to get started! The application requirements needed one 16GB ramdisk but the kernel is defaulting to sixteen 16MB ramdisk. In order to create a Ramdisk some values need to be added in the nf of the Server. Ramdisks cannot swap and you do not have the possibility to resize them. Another similar thing is the RAM disk (/dev/ram*), which simulates a fixed size hard disk in physical RAM, where you have to create an ordinary filesystem on top. If you compare it to ramfs (which was the template to create tmpfs) you gain swapping and limit checking. If you unmount a tmpfs instance, everything stored therein is lost. Everything in tmpfs is temporary in the sense that no files will be created on your hard drive. Just to other options Tmpfs is an alternative of Ramdisk as it's a file system which keeps all files in virtual memory. It will help to increase the performance if some data is accessed constantly. One of the adventages to use this as data store is that the files stored inside ramdisk partition will have the faster access as compared to hard drive as memory is faster than disk. ![]() It can also be used for a temporary filesystem for crypto work, since the contents are erased on reboot. *) What are some of the other uses of the RAM disk. ![]() It is required for initrd, an initial filesystem used if you need to load modules in order to access the root filesystem. This can be the RAM disk device itself, or an unused disk partition (such as an unmounted swap partition). The RAM disk drive is a way to use main system memory as a block device ( Memory used as Disk partition to store data ). Information in this document applies to any platform. Linux OS - Version Oracle Linux 5.0 and later Oracle Cloud Infrastructure - Version N/A and later ![]() What is an ramdisk and How ramdisks can be created.
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