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Author Topic: Switching config from Raid1  (Read 3897 times)

Polaris

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Switching config from Raid1
« on: August 10, 2009, 06:56:45 AM »
Hi,

I'm not sure if it has been asked or I have overlooked documentation. Assume a DNS-323 configured as RAID1 with data mostly full, can its be reconfigured as individual drive without losing data in one of the 2 disks and be able to reformat one of the drives. The reason of thinking doing has more to do of gaining space knowing that raid1 feature will be lost but critical data has been already backup elsewhere but still not wanting to lose what is currently in there.

Has any one already done that if this is possible? Or if it is not possible, switching from Raid1 to Jbod, will it be also possible too without losing any data?

Any help is greatly appreciated!

Polaris
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fordem

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Re: Switching config from Raid1
« Reply #1 on: August 10, 2009, 08:57:29 AM »
You can switch from a RAID1 configuration to a standard volume (ie separate drives) by removing one of the RAID1 drives, formatting the other, and then re-installing the drive that you removed.

As always - make sure have a backup before changing your drive configuration.

D-Link's definition of JBOD may not be the same as your's - their definition is what is generally known as concatenated drives, where the individual drives are used to create a single large volume rather than smaller multiple volumes.  You cannot move from RAID1 to JBOD without reformatting both disks and losing the data stored on them.
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RAID1 is for disk redundancy - NOT data backup - don't confuse the two.

Polaris

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Re: Switching config from Raid1
« Reply #2 on: August 10, 2009, 09:40:29 AM »
Thanks for quick reply fordem.

If I understand, by removing ones of the raid1 drive, what happens when I reinsert it once I format the other and reconfigured the dlink as standard volume, would the nas 323 able to recognize the file structure of the raid1 drive so I will not lose any data in there.

Got the definition of JBOD, so separate drive is what I wanted first.

When you say re-installing the drive just removed, is simply just reinserting it in the enclosure after setting dlink as standard volume, right?

Polaris
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Polaris

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Re: Switching config from Raid1
« Reply #3 on: August 24, 2009, 10:24:57 AM »
Quote from: fordem on August 10, 2009, 08:57:29 AM
You can switch from a RAID1 configuration to a standard volume (ie separate drives) by removing one of the RAID1 drives, formatting the other, and then re-installing the drive that you removed.

As always - make sure have a backup before changing your drive configuration.


Yes, it did the trick and preserved all the configs done, freeing now 1tb for more storage.
Realized that raid1 was not a backup so most important stuffs like photos shots went to dvd media in case of crash! It was no brainer like I had feared! It's simple like you said, pull out , change config, format and reinsert! Thanks for you great help, fordem!
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