Re: synchronous metadata update

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Hi pradeep,

On Mon, Dec 22, 2008 at 2:54 PM, pradeep singh
<pradeep.rautela@xxxxxxxxx> wrote:
> On Sun, Dec 21, 2008 at 7:52 PM, Sandeep K Sinha
> <sandeepksinha@xxxxxxxxx> wrote:
> [snip]
>>>
>>
>> When you say a file system as consistent, It means that you would be
>> able to mount the filesystem. The superblock would be in the
>> consistent state.
>> The point is that even if you loose the data for a couple of files,
>> still your file system will be up and you would be able to access the
>> data for other files.
>> If you loose the consistency of a file system( e.g superblock) then
>> would loose everything.
>>
>> There are other tools that can be used to recover the data of a file
>> or revert back the file to a consistent state but if you loose
>> superblock then you land NOWHERE.
>
> Perfectly right but that may be a one off scenario. Usually modern
> filesystems would keep multiple copies of superblock, so even if your
> superblock is damaged you can still recover the fs to a sane state by
> forcing fsck to use an alternative superblock.
>
> Hope this helps somehow.
>

No offense, but remember that fsck fails too.
There are instances where this is possible.

HTH,

> Thanks,
>       ~Pradeep
>>
>>>
>>> Thanks
>>> Shyam.
>>>
>>
>>
>>
>> --
>> Regards,
>> Sandeep.
>>
>>
>>
>>
>>
>>
>> "To learn is to change. Education is a process that changes the learner."
>>
>> --
>> To unsubscribe from this list: send an email with
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>>
>>
>
>
>
> --
> Pradeep
>



-- 
Regards,
Sandeep.





 	
"To learn is to change. Education is a process that changes the learner."

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