[CentOS] Entry server hardware

Sun Feb 12 18:48:44 UTC 2006
Les Mikesell <lesmikesell at gmail.com>

On Sun, 2006-02-12 at 01:12, Isreal Varela wrote:
> >   
> >>> I would like some advice on a SATA RAID controller that is able to work 
> >>> in a 32 bit/33mhz PCI slot. I have been looking for a while but all I 
> >>> can find is 64 bit cards that cost over $300. I just need it to mirror 2 
> >>> drives, and of course work in Centos 4.2.  I am not looking for RAID 5 
> >>> or anything like that. All the cards I find that would do this are 
> >>> fakeraid.
> >>>       
> >
> > Any particular reason why you're not using Linux Software RAID? Having had to 
> > swap RAID arrays in a hurry to alien hardware, using standard IDE and 
> > software RAID was a lifesaver for me! 
> >
> >   
> I always thought hardware RAID was the way to go, Seems cleaner to me. 
> Just used to doing it that way in the Microsoft world I guess.

Hardware is better for raid5 where some computation is required.
For raid1 it is just a matter of having drives that can
execute commands concurrently.  That is, using 2 drives on the
same IDE controller would be a bad idea, but SCSI is OK and
SATA only permits one drive per controller anyway.  There is
not a lot of CPU overhead in mirroring.

  Les Mikesell
   lesmikesell at gmail.com