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

[Bill Davidsen <davidsen@tmr.com>]

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