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RE: Large Storage
- To: <ukha_d@xxxxxxx>
- Subject: RE: Large Storage
- From: "Phil Harris" <phil@xxxxxxx>
- Date: Sun, 7 Dec 2003 12:12:58 -0000
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
> So if you had a drive go down under RAID 0 how would you recover this
one
> drive if the data had been stripped across several drives or have I
> misunderstood how RAID 0 works.
You wouldn't ...
...if I have a RAID 0 array of 8 x 160Gb drives and one drive goes down
then
all 1.2Tb of data on that array is fooked.
Recreating that 1.2Tb of data takes me about 4 weekends of ripping.
Therefore by running RAID 0 (striped) on that array I have had to accept
that if a drive does go down I replace it and spend a month of weekends
recreating data.
Given that that server now has a more capable motherboard in it then I
*COULD* swap over to RAID 5 (and lose a bit of capacity) and the processor
would be more up to the job of doing all the XOR data calculations without
hitting the throughput but again I'll have to recreate all the data as I
don't have a spare 1.2Tb of space anywhere to copy the stuff off to
temporarily.
Phil
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