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Currently running a raid 0 array.  Would like to add 2 more hard drives in a raid 0 array??

Posted on 2004-09-07
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Last Modified: 2010-04-25
I am using the gigabyte GA-8KNXP mobo.  I can install 4 sata drives.  I am currently running 2 in the Raid 0 array.  Can I add the 2 new drives to the mobo and set them up in the same array without having to re-format the current drives?  Or, can I set them up as a separate Raid 0 array.  (The 2 new drives are the same model, but they are different models then the existing drives.)   Again, I would prefer not to re-format the existing drives.

Thanks,

John
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Question by:jwmghf
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by:Callandor
ID: 11997213
Adding drives to an existing array requires backing up the data, breaking the array, re-creating a new array with the additional drives, and restoring from backup.  Adding a second array will let you keep your current setup.
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by:jwmghf
ID: 11998392
Hi Callandor:

You are always here.  That is a bonus for me:)))   I think I would opt to add a second array.  Will the second array appear as send hard drive??  (D: for example)  My current array is running the 74gb raptors.  My new drives are the Hitachi deskstar 250gb.  Which way do you think would be better to set it up??  One big array or simply add a second array.  Are there any pros and cons to be aware of?

Thanks,

John
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by:Callandor
ID: 11998598
I would keep your raptors as they are - they are fast, which is good for the OS, and they are not too big, which brings me to my second question: do you backup your OS, with all the programs and configurations?  As disks get bigger, more stuff can be crammed in there, but watch out if a drive fails: you have a RAID-0, which means no redundancy if either drive crashes.  You could use Ghost and create an image on your new array, which will appear as one big disk (drive D).  This way, all your programs can be brought back without too much trouble.  You should also make it a practice to create an image after modifications have happened that are a pain to duplicate.
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by:jwmghf
ID: 12018277
Ok I got the new array installed, but I want to know that's it's in the best way.  The techy at giga-byte had me set the new drives (F:) up on Silicon Image Raid controller.  He then had me change the disk type from Basic NTFS to Dynamic NTSF and then had me format them.  My C: is Basic.   My F: is Dynamic.  Is this normal??  Are there advantages to Basic over Dynamic or vise-versa??

Thanks,

John
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Callandor earned 250 total points
ID: 12020009
Microsoft wants RAID arrays to be dynamic: http://support.microsoft.com/default.aspx?scid=kb;EN-US;314343

Dynamic disks are more flexible, but RAID implemented in hardware doesn't have to be dynamic.  Here's an explanation:
http://www.windows-help.net/WindowsXP/howto-20.html 
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by:jwmghf
ID: 12020385
Thanks again Callandor!!!  See you around.

John
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