File system

[Craig Whipp]

On Mon, May 10, 2010 10:53 am, Nikos Vassiliadis wrote:
> Ansar Mohammed wrote:
>> Hello All,
>> I have a FreeBSD VM running. Whenever I reboot the VM without a clean
>> shutdown it boots into single user mode and I have to run fsck.
>>
>> When I run fsck, the file system clearly has issues.
>>
>> Is there any way to have FreeBSD run on a better file system that wont
>> crap
>> out on me everytime I do and unclean shutdown?
>
> I am really surprised no one proposed geom journaling. With gjournal,
> I never had to do a manual full fsck and have had plenty of unclean
> shutdowns. I also occasionally do fsck the filesystem and there were
> no errors ever found. It definitely adds the ease factor I am looking
> for in a journaling sollution in the case of an unclean shutdown...
>

Correct me if I'm wrong, but since this FreeBSD install is running inside
of a VM, in addition to any of the precautions suggested here to get data
written or journaled to the disk as safely as possible, isn't there still
the issue of whether the VM actuall commits these writes to the physical
disk?