Messages in this thread | | | Date | Mon, 5 Dec 2011 18:27:49 +0530 | Subject | Re: What is Backing device used for? | From | Mandeep Sandhu <> |
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>> > Is there any document which explain what "backing device" used for?
Have a look at the initramfs doc to get brief idea: http://www.mjmwired.net/kernel/Documentation/filesystems/ramfs-rootfs-initramfs.txt
From what I've understood, is that backing device/store is the device onto which _committed_ data is actually written. This might be a block device like a hard-disk, flash mem or even the RAM (used by in-memory file-systems).
CMIIW.
HTH, -mandeep
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