[CentOS] SiI 3114 and RAID

Tue Feb 20 00:17:36 UTC 2007
William Warren <hescominsoon at emmanuelcomputerconsulting.com>

That's also FRAID for the sil controller.  If you can don't use the 
sil's FRAId use MD which is built right into the kernel.

Johnny Hughes wrote:
> On Thu, 2007-02-15 at 09:57 -0800, Florin Andrei wrote:
>> I've two machines with almost identical hardware (slightly different 
>> CPUs). The SATA/RAID controller is SiI 3114.
>>
>> One of the servers was installed a while ago by someone else, it's 
>> running Fedora Core 5 and RAID is enabled:
>>
>> # df -m
>> Filesystem           1M-blocks      Used Available Use% Mounted on
>> /dev/dm-6               125931      2990    116441   3% /
>> /dev/dm-1                   99        13        81  14% /boot
>> tmpfs                     1012         0      1012   0% /dev/shm
>> /dev/dm-2                 9917       151      9254   2% /tmp
>> /dev/dm-3                 9917       237      9168   3% /var
>> # cat /etc/modprobe.conf | tail -n 1
>> alias scsi_hostadapter sata_sil
>>
>> I installed CentOS 4.4 64bit on the other system, but I could not enable 
>> RAID. The installer was always seeing 2 separate drives instead of one 
>> RAID device.
>>
>> Was it my mistake? Did I not enable the proper settings in the BIOS? (I 
>> tried quite a few different settings)
>>
>> Or is it perhaps that the CentOS kernel does not have the proper drivers 
>> to support SiI 3114 in RAID mode?
> 
> It is most likely that the current kernel does not support the RAID in
> that scenario, though I am not sure.
> 
> Looking at the latest testing kernel's changelog that we have built in
> the testing repository (2.6.9-42.37), I do not see any added support for
> Sil 3114 RAID to that kernel (that would not be in the standard
> kernel) ... though there are sata_sil and sata_sil24 kernel modules in
> the standard kernel that depend on libata.  No idea if they support RAID
> though.
> 
> The 2.6.18 kernel in CentOS5 will have more hardware support and most
> probably support for those options, if they are in FC5.
> 
> You might try rhel5b2 (downloadable from the upstream provider) on that
> machine if you don't need it in production immediately ... as CentOS 5
> should be a fairly easy upgrade from there _OR_ use software RAID with
> the C4 kernels.
> 
> Also I found this page to see about getting drivers:
> http://www.siliconimage.com/support/supportsearchresults.aspx?pid=28&cid=3&ctid=2&osid=2&
> 
> On the FC5 machine you can do:
> 
> lsmod
> 
> And see all the modules loaded ... also look in /etc/sysconfig/hwconfig
> as it may list the module for the controller.
> 
> You can then look for that module name with the modinfo command on
> centos-4.
> 
> Thanks,
> Johnny Hughes
> 
> 
> 
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