Re: Anybody know about nforce4 SATA II hot swapping + linux raid?

Bill Davidsen
2005-10-18T22:35:06Z

Robert Hancock wrote:
> Lajber Zoltan wrote:
>
>> We have about 7 serverraid card from 4L to 5i. All of them is sitting on
>> shelf. They are pain to manage, ipssend tool is weak, serverdirector
>> complicated. And they are slow, the Fusion MPT SCSI with sw raid
>> significant faster, as we measured with bonnie++. Even the old aic7892 is
>> faster (these built-in scsi controllers on xseries motherboards).
>
>
> The 6i and 7 series of cards seem to have quite a bit better relative
> speeds. Certainly the 4Lx cards can be outperformed in simple "hdparm"
> tests by a 3ware SATA controller/disks of half the price..
>
> Plus, software RAID can't provide good performance on many server/DB
> applications without risking data loss in certain cases - for such
> things one really wants something with a battery-backed cache on it..
>
I just have a better feeling about hardware when there are dozens of
multi-TB servers from NY to CA. If it goes down IBM fixes it instead of
someone trying to get it back up at the console.

--
-bill davidsen (davidsen@tmr.com)
"The secret to procrastination is to put things off until the
last possible moment - but no longer" -me