Checking the file system every 22 boots

[Bob McConnell]

Ioannis Vranos wrote:
> Karl Larsen wrote:
>> Ioannis Vranos wrote:
>>> OS: Ubuntu 7.10 x86.
>>>
>>> Why does Ubuntu run a full file system ext3 check every 22 times? ext3
>>> is considered robust. Is the default mode of ext3 under Ubuntu 7.10
>>> other than "ordered mode"? Is there any way to disable this unnecessary
>>> forced file system check?
>>>
>>> Thanks,
>>>
>>> Ioannis (John)
>>>   
>>     You can get it to not ask but I really do not care. It happens and 
>> takes just a few seconds and is automatic. Just slows down booting slightly.
>>
>> Karl
> 
> In my Pentium III with 350-400 GB HDD (don't remember its capacity right
> now), it takes some time.
> 
> Since it is unnecessary why it takes place? Also how can I disable this?
> 

It is necessary. About one in five passes it finds a few orphaned inodes 
on my systems. You can adjust the frequency by changing a value in 
/etc/fstab. But if your system stays up most of the time, there is also 
a maximum days between runs buried somewhere. So when I took down a 
server that had been up for 200 days to install additional drives, all 
of the partitions on the existing drives were checked when it booted 
back up.

Bob McConnell
N2SPP