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how to build raid1 and raid5 in single server

I am trying to build a raid1 and raid5  using Adaptec SATA 2port and 4port
adapters in single server. I build servers with individual  arrays and configure to
work perfectly. But when I try to build raid1 and raid5 on a single main board  with both adapters  it gets
confused.Main board cannot identify second adapter.IRQ changes cannot be done. I am using a IBM x series mother board.  Can I build both arrays in a single computer? If so how? If not why? My requirement to do this is to install os in raid1 drive and data to be onraid5.  Please help me.
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kgbrat
Asked:
kgbrat
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1 Solution
 
arnoldCommented:
From your statement during boot, you only get a single prompt for the Adaptec configuration?  If you can not alter the IRQ and if you can not configure the system to distinguish between the two cards, you would need to use two different controllers. one for raid 1 and one for raid 5.
 
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kgbratAuthor Commented:
Thanks for your reply. I am using two controllers. One is  2port raid adapter and the other is 4port .My problem is  having raid1 built with 2port adapterin place,  system cannot see second 4port adpter to build the second array. Do I have to install the OS before I go for second raid.
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arnoldCommented:
If your system can not distinguish between the two SATA RAID adapters because they are from the same manufacturer, you would need to get an additional adapter from a different manufacturer to avoid the conflict.

You might as well try to configure the RAID 5 setup after the system is installed on the Raid 1.

If you have a boot splash screen enabled, you should disable it and see whether the configuration prompt for the controller was missed because of that.
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IPKON_NetworksCommented:
During POST you should be able to see the startup lines of the two controllers appear. They would then allow you to enter their configs. If you only see 1 line (for the 2 channel adaptor) then it suggests the following:

1. Hardware fault in either adaptor or PCI bus
2. Try moving the 4 channel to a different PCI slot. You don't say which IBM server you have but they come with at least 2 PCI buses. Make sure they are seperated (for performance if nothing else).

If you see both controllers during POST but not within the OS then this would point to a driver/firmware issue.

1. Update both cards with the latest firmware and also your server BIOS. servers sit in warehouses for months before shipping so are always running older firmware.

Finally, check your cabling from the controllers to the drives. If you have 5/6 drives installed in the server directly, then these will be running off a single SCSI cable so will only be connected to the one controller. Therefore, the single controller can create multiple volume sets (ie, RAID1 & RAID5).

Hope this helps
Barny


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kgbratAuthor Commented:
thanks Barny. You are the best.

kgbrat
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IPKON_NetworksCommented:
Why thank you. Let me know what the problem was?

Thanks
Barny
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kgbratAuthor Commented:
Hey Barny,

It was firmware problem.I tried my best to figure this out before I come to EE. It does not matter whether the raid controllers are from same manufacturer or different. System recognize without any difficulty.  But now I have a new problem . When I try to install Windows2003 sever os it comes up as there is no drive to install (pressed F6)  even if I named raid1 as bootable drive using raid software. I want to install server software on raid 1 and data on raid 5. Can you give your expert advice to overcome this.....
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arnoldCommented:
The short answer is that you need to provide the drivers for the RAID card/s.  Hit F6 and insert the floppy with the drivers.
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kgbratAuthor Commented:
Thanks guys Now server is ready to go.  before I put in to service can I add a hot swappable drive to the server.I already have a sata to sata hdd enclosure. Does the system recognize this drive or do I have to make any changes in the system config.
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arnoldCommented:
You should be able to add the drive at any time, but it will only be seen as a hot swap on the controller it's on.  You might need to go through the GUI for the RAID controller to which the drive is attached to designate it as a hot spare.  This depends on the card.
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