I have partition, which I'm going to use for keeping VirtualBox disk images (VDI, or may be VMDK). They are fixed-size (not dynamically-allocated) images. There are no other files/directories on partition (only several *.vdi files in the root directory of partition).
Which ext4 parameters are best for that purpose? As partition contains only few fixed-size ~20 GB files, and no other files are ever created on partition -- I guess some special flags can be used to optimize performance.
- Stability: images must not corrupt in case of sudden power-off (or, at least, they should corrupt no more than with default ext4 options).
- Maximum performance.