[CentOS] Intel RAID controller

Mark Belanger mark_belanger at ltx.com
Thu Sep 8 21:12:29 UTC 2005

Bryan J. Smith wrote:
> Mark Belanger <mark_belanger at ltx.com> wrote:
>>For the sake of completeness (and people searching the
>>archives) Centos3.5 has the drivers I need.
> Drivers for just the ATA/SATA channel support?
> Or the FRAID disk organization?
> I've seen people think the ATA/SATA driver is the FRAID
> support, when the FRAID is in addition to the ATA/SATA
> channel support.

I dont' know - how do I tell?
I fired up a 3.5 install, it saw the disks, and I installed.

Creating a 100Meg files seems pretty good:
time dd if=/dev/zero of=/var/tmp/blah bs=1024 count=100000
100000+0 records in
100000+0 records out

real    0m1.226s
user    0m0.030s
sys     0m1.170s


>>Thanks to all who suggested alternate methods for CentOS
>>versions that do not.
> In kernel 2.6, the LVM2-DM (Device Mapper) can do a lot.
> It can read the FRAID vendors disk organization, and LVM2-MD
> can handle provide the software RAID logic (without the
> vendor's proprietary, 3rd party code)
> It's also _very_broken_ too.
> Furthermore, vendors change disk organization/logic
> continuously between models.
> Lastly, I've also not seen FRAID-5 supported yet either.

Mark Belanger
LTX Corporation

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