Very Poor Raid Card Performance

Juha Saarinen juhasaarinen at
Wed Jan 17 00:32:00 UTC 2007

On 1/17/07, Wood, Russell <Russell.Wood at> wrote:
> I have an LSI MegaRaid with three drives at RAID 5: works a
> god-damn-treat. I don't know what my throughput is on RAID 5 but RAID 0
> was fast (70MB/s+).

Interesting. On my single SATA drive box I see:

$ sudo dd if=/dev/ad8s1d of=/dev/zero bs=1m
1024+0 records in
1024+0 records out
1073741824 bytes transferred in 15.552259 secs (69040891 bytes/sec)

> Disclaimer.  This e-mail is private and confidential.

So... why send it to a public mailing list?


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