Krzysztof SIEROTA wrote:
>
> >
> As far as I know the issue has been fixed in 2.4.* kernel series.
> ReiserFS and software RAID5 is NOT safe in 2.2.*
>
> Chris
Hi,
but Stephen Tweedie (some time ago) pointed out that ,
the only way to make a software raid system that survives (without data corruption)
a power failure
while in degraded mode ( this case is rare but it COULD happen),
is to make a big RAID5 partition where you store the data and a small RAID1
parition where
you keep the journal of the RAID5 partition.
He said ext3fs can be adapted for this, what is the current status ?
Regarding ReiserFS and RAID5 : does allow reiserfs to put the journal on a
different partition
( eg RAID1) ?
If not consider it, because people want to run software-RAID5 arrays expecting the
same
reliability of HW ones.
last questions: are the current ext3 and reiserfs raid-reconstruction safe ?
thanks for infos.
(waiting for the moment where I will be able to powercycle a 100GB journaled
soft-RAID5 array
which comes back up within few secs, instead of dozen of mins up to hours because
of fsck.
:-) )
PS: do you think we will see that before the end of the year ?
Benno.
