David Vasek [va...@fido.cz] wrote: > Hello, > > I would like to ask you. Does anybody have a real life experience with a few > TB large encrypted vnd(4) image which hosts a filesystem which is > intensively written to and read from? In such a setup where the host device > is a 4k-byte sector drive and the vnd(4) emulates a 512-byte sector device, > is it robust enough? I suppose the vnd sectors would be used in groups of > eight or more (4096-byte fragments) and would be aligned to the host drive > sectors. Are there any issues? Is the double filesystem overhead and double > buffering a problem? >
Keep in mind, vnd emulates 512 byte sectors because that's the default disklabel that it uses You are free to specify a different disklabel in /etc/disktab and use vnconfig -t xyz to get vnd to recognize the CHS, sector size and total sector parameters. I believe you also have to use vnconfig -t ... when you mount this image.
