Can I add more disks to a RAID 0 without problems?

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Can I add more disks to a RAID 0 without problems?

Postby lmlr » Thu Jan 22, 2009 7:33 pm

I have a 407e with 2 WD 1TB in RAID 0 and now I need more disks.

Will I have any problems (data loss, etc) if I add more disks?

Will I run into problems if instead of 1TB disks, like the ones I have, I put 2 WD 2TB disks when they are available?

Thanks in advance.
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Re: Can I add more disks to a RAID 0 without problems?

Postby HarryPotter » Thu Jan 22, 2009 8:00 pm

As long as you dont touch the existing RAID0, you can add whatever HDD you want. You can add another RAID0 or a RAID 1 or 2 Basic volumes.
But you cannot expand or degrade your exisitng RAID0 without losing the data.
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Re: Can I add more disks to a RAID 0 without problems?

Postby lmlr » Fri Jan 23, 2009 10:25 am

I would like to expand to 4TB…
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Re: Can I add more disks to a RAID 0 without problems?

Postby HarryPotter » Fri Jan 23, 2009 10:41 am

As I wrote, you can not expand your existing 2x 1 TB RAID0 to a 4x 1 TB RAID0
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Re: Can I add more disks to a RAID 0 without problems?

Postby lmlr » Fri Jan 23, 2009 12:23 pm

Yes, I understood. Thanks.

I just have to figure out a way to copy the info, format, and then copy again or I could make 2 RAID 0.

Regarding this last part, could I do it with the new WD 2TB disks?
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Re: Can I add more disks to a RAID 0 without problems?

Postby lmlr » Fri Jan 23, 2009 1:55 pm

Sorry, but I just thought of another possibility.

If I add 2 more disks (WD 1TB like the ones I have, or the new WD 2 TB) in RAID 5 will I loose any of the existing data?
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Re: Can I add more disks to a RAID 0 without problems?

Postby Franklin » Fri Jan 23, 2009 8:08 pm

Greetings lmlr

Please refer to the Disk Planning Guide for further information.

In general, you cannot convert a 2-drive RAID type into a 4-drive RAID type. You will have to remove all data from the existing volume and then recreate the system using 4-drives.

As always, it's recommended to use a Redundant RAID Volume, using JBOD/RAID-0 are the most vulnerable RAID types - therefore it's not recommended to use these RAID types.

Hope this helps
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