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HP DL 380 G5 raid creation

i have HP dl 380 g5 server and recently added 3 additional hdd , need to create raid 5 on the new hdd , how can i do that
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kurajesh
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kurajesh
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2 Solutions
 
hunartCommented:
What is your current settings?

Are you expanding the drives or are you just adding a new RAID 5 to an existing system?
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kurajeshAuthor Commented:
we have added 3 new hdds in addition to the existing ones. the exisitng hdd is on raid 5. i need to create raid 5 on the newly added hdds
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hunartCommented:
Are you wiping out the data on the existing RAID 5 or do you want to combine the existing data to the new RAID 5?  Please provide more details so we can help you.

Also, we need to know what hdd size you currently have and the new ones.  Are you running out of space on the existing RAID 5?
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kurajeshAuthor Commented:
we dont want to wipe the data on the existing ones, existing ones are 146gbX6 and the new ones are 300gbx3.

we want to have a separate array for the new ones so that once the raid is created it will display as a separate disk.(i guess so).

we are actually running out of space on the exisitng raid5.

the os installed is oel 4.5 (oracle enterprise linux)
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hunartCommented:
Here are questions for you:

1) Can your controller handle a secondary array?
2) Do you have the CD/DVD from HP called "Smart Start"?

If your controller can handle a secondary array, use the Smart Start CD and then follow the instruction on screen.  Alternatively, you can use ACU (Array Configuration Utility) from the post menu and do it from there.
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andyalderSaggar makers bottom knockerCommented:
Wouldn't it be better to expand the current array? Then you'd only lose one disk to parity rather than two.
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hunartCommented:
Expanding the current array is totally a different process and it could be complex.  You have to know exactly what to do; otherwise, you will end up losing your data.  I am not saying that it is impossible.  There are certain precautions that you have to follow.  You must backup your data and then rebuild your array.

Secondly, since your new HDDs are different size as well, you will not be able to utilize the full capacity of the new drives.  Unless you rebuild the entire array from scratch.
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andyalderSaggar makers bottom knockerCommented:
Expanding is easy, however I didn't notice the sizes were different. You are correct it would be a waste of disk to add them to the current array.
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kurajeshAuthor Commented:
can we do the same through bios itself upon booting the server. do we actually need the cd smart start
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hunartCommented:
Yes.  Either one should work.  As I said earlier, make sure that your controller supports it and make sure that you select the correct HDDs when building the new array.

If you can see the new HDDs from the post prompt, within the BIOS, the your controller supports the second array.

Good luck.
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kurajeshAuthor Commented:
i will try this option (without cd) first tomorrow as i dont have the cd with me. i will update the result tomorrow, thanks
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kurajeshAuthor Commented:
i tried without cd option. it worked and i got an option to create a logical drive which i selected and rebooted the server , now it is avaiable , thanks a lot
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