Re: Some very basic questions

[Avi Kivity <avi@redhat.com>]

Stephan von Krawczynski wrote:
>
>>    - filesystem autodetects, isolates, and (possibly) repairs errors
>>    - online "scan, check, repair filesystem" tool initiated by admin
>>    - Reliability so high that they never run that check-and-fix tool
>>     
>
> That is _wrong_ (to a certain extent). You _want to run_ diagnostic tools to
> make sure that there is no problem. And you don't want some software (not even
> HAL) to repair errors without prior admin knowledge/permission

I think there's a place for a scrubber to continuously verify filesystem 
data and metadata, at low io priority, and correct any correctable 
errors.  The admin can read the error correction report at their 
leisure, and then take any action that's outside the filesystem's 
capabilities (like ordering and installing new disks).

-- 
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