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New Member

Install Unity (or CCM) in one HDD , then plug 2nd HDD to be synchronized?

Hello everyone,

I got one simple question:

There is a Cisco 78xx Server with 2 hot-swapped HDDs.

I will take out one HDD01, install Unity system on HDD02.

Right now could I plug HDD01 back , synchronize these two HDDs to make RAID0+1?

Should I change that Server BIOS configuration?




Re: Install Unity (or CCM) in one HDD , then plug 2nd HDD to be

can you clarify what you are trying to do?

If you are trying to upgrade, and you want to pull a drive out for backup, just a pull a drive out, label it and begin your in place upgrade. (I pull drive #1 (zero is your first drive)

If someone goes wrong, pull drive zero out, and push drive #1 into the same slot where zero came from. Server should boot up fine. Insert drive 0 zero where #1 was and then RAID will write over the top that drive, creating a new mirrored image.

Your hot-swap drives should already be setup for Mirror. If they are not, you need to get this working before you do any of this. There should be a Windows HP utility installed on Unity or CCM to show the current RAID drive configuration. Check that out and see where it is. (health, configuraiton, etc)

Hope this helps, but if you have more info, that would help as well.


New Member

Re: Install Unity (or CCM) in one HDD , then plug 2nd HDD to be


Sorry for the deley.

Let me verify my question.

It is about "

mirror HDD from RAID 0 to RAID 1+0 procedure".

I got my co-worker's research as follows:

Take a look at this post (note it's for HP server). Go to the second to last entry, which contains the instructions:

ACU allows you to migrate RAID for SCSI disk. All you need to do as below:

1. Original Array A with 36GB RAID 0.

2. Slot in the new disk.

3. In ACU highlight the Array A and choose Expand Array and add the new disk.

4. After expand the array, you should able to change your current RAID to 1+0.

Make sure the new disk size id equal or greater than old disk.

Please note that you have to careful to follow the steps, or you will mess up the HDD.