Dell T605 SAS6/IR Raid Controller replacement card

I have a Dell T605 PowerEdge server running SBS 2011 which came as standard with a Dell SAS6/IR Raid Controller card.

The server originally came with SBS 2003 but we upgraded to 2011 last year with minimal problems apart from the SAS6/IR card which Windows device manager has always had a problem with and couldn't get an appropriate driver that it was happy with.

That said the server has been running happily with 2 x 150GB OS drives raid 1 and 2 x 1.5TB data drives raid 1.

One of the data drives is now registering a fault so we are looking to replace them with new drives and as part of the upgrade we want to replace the SAS6/IR card with a newer model which is compatible with the existing hardware.

My question is what make and model of raid 1 card or better would you recommend?
ZX-10RAsked:
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PowerEdgeTechConnect With a Mentor IT ConsultantCommented:
If you stick with supported/Dell controllers, then the PERC 6/i is the only choice ... however:

Compatibility With Virtual Disks Created on SAS 6/iR Controllers

The migration of virtual disks created on the SAS 6/iR family of controllers
can be migrated to PERC 6 and CERC 6i. However, only virtual disks with
boot volumes of the following Linux operating systems successfully boot after
migration:

• Red Hat Enterprise Linux 4 Update 5
• Red Hat Enterprise Linux 5
• SUSE Linux Enterprise Server 10 (64-bit)

NOTE: The migration of virtual disks with Microsoft Windows operating systems is
not supported.


Page 29:
http://ftp.dell.com/Manuals/all-products/esuprt_ser_stor_net/esuprt_dell_adapters/poweredge-rc-6i_User%27s%20Guide_en-us.pdf 

So, you'd need to do a backup/restore to upgrade to a PERC (and would likely be the case with most LSI-based controllers, as well).
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ZX-10RAuthor Commented:
To be truthful, I was thinking of removing all 4 disks and putting in 4 new ones as Raid 1.  One pair for OS and 1 pair for data, so the only thing I need to know is what raid card to install?
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PowerEdgeTechConnect With a Mentor IT ConsultantCommented:
That works too ... I would still go with the PERC 6/i.  If  you ever needed Dell's help in troubleshooting a storage issue, without a "supported" controller, they would wash their hands of it.  That way, you are also sure it will work.  The T110, being a low-end server, may not play nicely with some other controllers.  I just don't have experience with third-party controllers in Dell servers ... I'm sure there are some that would work.
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