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MBoiv1
Beginner
1,375 Views

RAID1 to RAID10

I'll be salvaging a rather old PC with DP35DP motherboard and Q9650 CPU.

I plan to keep the only 750GO HDD to run the OS and general programs and want to install 2 WD RED 3TO in RAID1 configuration. In the future, if I want to add 2 more 3TO (or larger) HDD and upgrade to a RAID10, will that be easy? Will I be able to do that without reformating all my drive? Or will I have to make an image of my RAID1 drive, format, reconfigure evyrthing and reload the backuped image?

Obviously, no matter how I do it, I will backup my data.

On a general note, in a 4 HDD RAID10 configuration, can I replace any HDD at anytime? Let say I have 3 3TO HDD and want to upgrade to 2x 6TO and 2x 3TO how would that work?

Thanks in advance

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3 Replies
n_scott_pearson
Super User Retired Employee
76 Views

I believe that changing the RAID array from RAID0 to RAID10 requires full reconstruction and the contents of the drives will be lost in the process.

In my opinion, once you have 4 drives, RAID5 makes much more sense. You are just as safe from a single drive failure and you can store more data in a RAID5 array than you can in a RAID10 array (which uses only simple striping and mirroring) using the same set of drives. I cannot remember whether the Intel Rapid Storage implementation on the DP board supported RAID5, however.

Last but not least, I caution you to remember that we are talking about a board and silicon that is 8+ years old. This is beyond the standard 7-year MTBF that is used with such equipment and age-related failures are bound to eventually happen. I would certainly recommend that you take backups regularly...

Hope this helps,

...S

KL2
Valued Contributor I
76 Views

A few things I'll add to what Scott said:

RAID 1 to RAID 10 is not a supported migration for ICH9R: http://www.intel.com/content/www/us/en/support/boards-and-kits/000005997.html http://www.intel.com/content/www/us/en/support/boards-and-kits/000005997.html

If you aren't already, you should be using RST driver 9.6 or higher (up to about 10.8 or maybe 11.2) for 4k sector support (512e / Advanced Format): http://www.intel.com/content/www/us/en/support/boards-and-kits/000005646.html http://www.intel.com/content/www/us/en/support/boards-and-kits/000005646.html

Even if you are using an RST driver that is compatible with 4k sectors, the RAID Option ROM in the BIOS tops out at 8.9.0.1023, so you may run into issues there (when creating the array, if using the Option ROM).

RST 9.6: https://downloadcenter.intel.com/download/15251/RAID-Intel-Rapid-Storage-Technology-for-Intel-Deskto... https://downloadcenter.intel.com/download/15251/RAID-Intel-Rapid-Storage-Technology-for-Intel-Deskto...

RST 10.8: https://downloadcenter.intel.com/download/20768/AHCI-Intel-Rapid-Storage-Technology-Driver-for-Intel... https://downloadcenter.intel.com/download/20768/AHCI-Intel-Rapid-Storage-Technology-Driver-for-Intel...

RST 11.2: https://downloadcenter.intel.com/download/21854/AHCI-Intel-Rapid-Storage-Technology-Driver-for-Intel... https://downloadcenter.intel.com/download/21854/AHCI-Intel-Rapid-Storage-Technology-Driver-for-Intel...

The reason I say *maybe* RST 11.2, is that ICH9R support disappears from the iaahci.inf in that version. The RAID device ID (PCI\VEN_8086&DEV_2822) in iastor.inf stays the same, however, and will install regardless. RST 10.8 has a listing for the ICH9R in the iaahci.inf, so support isn't an issue there.

idata
Community Manager
76 Views

Hi,

 

 

Thanks for the help on this; Please dermeister let me know if it helps you, also if there is something else I could do for you.

 

 

Regards,

 

Hellen.

 

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