Raid Card controller for FC System

[edwardspl at ita.org.mo]

Thomas Kappelmueller wrote:

>edwardspl at ita.org.mo wrote:
>  
>
>>Thomas Kappelmueller wrote:
>>
>>    
>>
>>>Todd Denniston wrote:
>>>
>>>      
>>>
>>>>Roger Heflin wrote, On 03/24/2008 02:20 PM:
>>>>
>>>>        
>>>>
>>>>>edwardspl at ita.org.mo wrote:
>>>>>
>>>>>          
>>>>>
>>>>>>Alan Cox wrote:
>>>>>>
>>>>>>            
>>>>>>
>>>>>>>On Sun, 23 Mar 2008 15:39:22 +0800
>>>>>>>edwardspl at ita.org.mo wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>              
>>>>>>>
>>>>>>>>Dear All,
>>>>>>>>
>>>>>>>>Which model / type of ATA Raid card controller is good for work
>>>>>>>>with New FC System ?
>>>>>>>>Would you please recommend ?
>>>>>>>>                
>>>>>>>>
>>>>>>>Almost every 'raid' controller for ATA devices is just driver
>>>>>>>level raid,
>>>>>>>so equivalent to using the built in lvm/md raid support that works
>>>>>>>with
>>>>>>>any devices. At the high end there are a few hardware raid cards
>>>>>>>but they
>>>>>>>rarely outperform ordinary ATA on PCI Express.
>>>>>>>
>>>>>>>
>>>>>>>              
>>>>>>>
>>>>>Edward,
>>>>>
>>>>>The cheapest 4-port raid cards are typically $300US, the 8-port
>>>>>cards are quite a bit more. If you are a home user I would suggest
>>>>>not wasting your money on the HW raid, and has others mentioned it
>>>>>is not really worth the extra money for a home user, so use software
>>>>>raid.
>>>>>
>>>>>Most of the cheaper cards are fakeraid and at best (if supported
>>>>>under DMRAID) are only slightly better than software raid.
>>>>>
>>>>>Roger
>>>>>
>>>>>          
>>>>>
>>>>So would the better question be:
>>>>Which model / type of ATA multi-port card controller is good when you
>>>>want to do software RAID with New Fedora System?
>>>>i.e. which manufactures cards that you can hang 4+ drives off of,
>>>>have enough independence[1] between drives, that doing software RAID
>>>>works fast[2]?
>>>>Can you get 4+ port SATA cards that don't claim to be "RAID" cards?
>>>>
>>>>Or has everything already been said here:
>>>>http://linuxmafia.com/faq/Hardware/sata.html
>>>>http://linux-ata.org/faq-sata-raid.html
>>>>
>>>>[1] I am making the old assumption that ATA drives on the same bus
>>>>slow each other down. Does that really matter with SATA?
>>>>
>>>>[2] assuming the controller card is more likely to be the bottleneck
>>>>than the processor, PCI bus, or drives.
>>>>
>>>>        
>>>>
>>>Hi!
>>>http://linux-ata.org/driver-status.html#matrix
>>>I would buy a card which drivers have the most features.
>>>
>>>I chose a cheap "Silicon Image"-chipped sata1 card (sata_sil driver).
>>>Hotplugging etc is working fine.
>>>
>>>
>>>The sata_sil24 is the SATA2 chip.
>>>
>>>-Tom
>>>
>>>      
>>>
>>Hello,
>>
>>Would you mind tell me your web site of your card model ?
>>
>>Thank for your comment!
>>
>>Edward.
>>
>>    
>>
>hi!
>http://www.st-lab.com/productf.asp
>It is the one with 4 Ports. It cost me something like 20£á/25$
>
>Btw I use Linux Software-Raid on it.
>If you can't get that card just search google for something like
>"SiI3114 controller card".
>
>The newer chips are called Sil3124 and i think there are also some with
>8 Ports but I'm not sure.
>
>Hope that helps
>-Tom
>
>  
>
Hello,

Why didn't use hardware raid for the Linux ( FC ) System ?
Is there two ports of S-ATA also ?
Does FC System built-in driver with it ?

Thank for your comment again...

Edward.
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