You do know that with a RAID 0 (striped set), if any drive in the array fails for any reason, you will loose all data on the volume, right? In this case, the more drives you add, the greater the chance for failure--with increased I/O. Being you already have a RAID 0 setup with two drives, you cannot just break the stripe--you will loose all data if not backed up. You can, however, break a RAID 1 (mirrored) volume with no ill effect. To effectively add another drive to your RAID 0 implementation, you will have backup your machine--making an image is the best option--break the array, add the drive and then restore your image. Being your System, Boot drive is on a RAID 0 array, that tells me that you have the array set at the hardware level as Windows will not allow you to create a RAID 0 array on the drive that contains the OS. Be careful here. You may want the best I/O performance, but you are taking a great risk here.

hey guys i have just set up my comp with 2 X 1tb hard drives using RAID O windows 7, .all up and running perfctly. i now have an extra 1TB drive i would like to add to the mix and still maintain my RIAD O set up.. is this possible as i have tried and ;-(... can some one please guide and help me here , thank you

"[Note :-First do backup to another external (Spare) HDD, Any suggestion with no warranty , but you can try it with own risk]" 1) Open your disk management, Then right click on any HDD of raid 0, Then click on break RAID or mirrored volume. 2) create again RAID with all three HDD. by right click on any dynamic disk and click extend volume. 3) Dont worry when you click on break mirror then your data does not loss it available on both of HDD, you can also combined raid as previous. 4) After make a RAID with three of HDD (1TB+1TB+1TB). 5) Right click on and dynamic disk and click synchronize and wait for several hour according to your data, After complete 100 % restart your system. For more about RAID can read this - http://networkingstudy.net/computer-hardware/raid-disk.html "[Note :-First do backup to another external (Spare) HDD, Any suggestion with no warranty , but you can try it with own risk]" Do anything at own RISK, I am not responsible for any damage. Rakesh Kumar

You do know that with a RAID 0 (striped set), if any drive in the array fails for any reason, you will loose all data on the volume, right? In this case, the more drives you add, the greater the chance for failure--with increased I/O. Being you already have a RAID 0 setup with two drives, you cannot just break the stripe--you will loose all data if not backed up. You can, however, break a RAID 1 (mirrored) volume with no ill effect. To effectively add another drive to your RAID 0 implementation, you will have backup your machine--making an image is the best option--break the array, add the drive and then restore your image. Being your System, Boot drive is on a RAID 0 array, that tells me that you have the array set at the hardware level as Windows will not allow you to create a RAID 0 array on the drive that contains the OS. Be careful here. You may want the best I/O performance, but you are taking a great risk here.

thank you so much .. honestly it seems that i should have thrown the 3rd drive in before i started ... so will leave it alll as is .. thanking every one for all your time and makng teh effport to explain this to me .. enjoy .. i have my answer thank you peZmaster