[ale] Hot Point RAID and Linux

[Charles Marcus]

> From: Mike Panetta [mailto:ahuitzot at mindspring.com]
> Sent: Wednesday, August 14, 2002 10:53 AM
>
>> I have heard nothing but good things about the Escalades,
>> but my understanding is they introduced some new technology
>> a year or two ago which greatly increased their performance
>> and reliability - know anything about that?

> Not really.  We were only working with that card for one
> particular customer, so I was not fully exposed to the
> technology.  Now that I remember, the card I had was so old
> that I had to do a bios upgrade to even do RAID 5 at all on
> it...  So this may be why it did not perform well.

Makes sense.

For anyone interested, these Escalade Cards claim incredible speeds:

7500-4 RAID 0 Read 140.1 MBytes/sec 323.9 IO/sec
7500-4 RAID 0 Write 137.0 MBytes/sec 362.2 IO/sec
7500-4 RAID 5 Read 105.0 MBytes/sec 339.8 IO/sec
7500-4 RAID 5 Write 65.5 MBytes/sec 87.9 IO/sec

(from: www.3ware.com/products/pdf/Benchmark_7500-4-8.pdf)

These benchmarks are for 4 drive arrays - they get a lot higher when you add
drives.

Charles


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