[mythtv-users] Fastest RAID for HD?

Markus Schulz msc at antzsystem.de
Sat Feb 16 01:37:55 UTC 2008


Am Freitag, 15. Februar 2008 schrieb Marc:
[...]
> Don't assume people on this list are experts. Some are, some are
> informed users who have done research, some just make assumptions
> based off of one post or one article they read.
>
> >From a statistical standpoint..
>
> Raid0 would be the fastest, it is common sense. Your speed for any
> action would be dependent on the number of drives you had or N.
> However if one drive fails you lose all data.
>
> Raid3 or 5 would be the second fastest and would be safer due to the
> ability to continue working without loss of data if you had a single
> drive fail. The difference between these 2 raid types is the way they
> setup parity. Raid3 has a dedicated parity drive. Raid5 spreads
> parity across all the drives.
> Speed of any action on either of these raid configs would be the
> number of drives you had minus 1 or N-1.

sorry but thats not true. Show me a raid5 with 5-6 drives which will got 
>300MB/s _write_ performance...

Fastest Raid _WITH_ redundancy was raid10.


-- 
Markus Schulz

This is Linux Land-
In silent nights you can hear the windows machines rebooting


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