How to fix intermittant “No space left on device” errors during mv when device has plenty of space?
ext4 has a feature called dir_index enabled by default, which is quite
susceptible to hash-collisions.
ext4
Does any file system implement Copy on Write mechanism for CP?
We have seen OS doing Copy on Write optimisation when forking a process. Reason being that most of the time fork is preceded by exec, so we don’t want to incur the cost of page allocations and copying the data from the caller address space unnecessarily.
Tell fs to free space from deleted files NOW
Is there a way to tell the kernel to give back the free disk space now? Like a write to something in /proc/ ? Using Ubuntu 11.10 with ext4.
How do I know if a partition is ext2, ext3, or ext4?
I just formatted stuff. One disk I format as ext2. The other I want to format as ext4. I want to test how they perform.
How do I determine the new size for resize2fs?
I want to shrink an ext4 filesystem to make room for a new partition and came across the resize2fs program. The command looks like this:
Is data=journal safer for Ext4 as opposed to data=ordered?
The default journal mode for Ext4 is data=ordered, which, per the documentation, means that
Short read while trying to open partition
On my personal home computer running Kubuntu Linux 13.04 I’m having trouble mounting a partition that is very dear to me. My backup policy is to perform a backup about monthly, so I do have a backup from August :). Is there any way to recover the personal files that are on this drive?