On Thu, 15 Jun 2000, Colm Buckley wrote:
> indicates that these are badged AMI MegaRAID cards - does anyone know
> for sure?
>linux-raid at vger.rutgers.edu is the best place to ask...
> I believe that the MegaRAID cards have performance problems with RAID5;
> anyone confirm/deny?
yep. they are lacking in the number crunching dept. from what i remember
off benchmarks posted to l-r, they don't get better than about 5-8MB/s in
RAID5.
> I'd only really plan on using RAID1 anyway (or
> possibly 1+0 if I can fit enough disks in).
why? imo RAID1 == performance deficit against 3 disk RAID5 for very little
gain in redundancy, and less disk space.. same for RAID1+0 vs RAID5+0.
> The alternative is,
> obviously, the Mylex eXtremeRAID 2000, which looks like being the
> fastest LVD RAID card around...
>
very fast CPU. And Mylex are always a safe bet. (even ancient
DAC960PDU's get 10MB's in RAID5
> Final thoughtlets?
>> Colm
>>
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