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29-01-2008, 04:03 AM
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#1 (permalink) |
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n5200 pro - raid expansion question
I am considering purchasing a n5200 pro and have a question.
Initially, I plan to have 2 drives @ 1TB each in a raid 1. When it is almost full, my plan is to add 3 additional drives @ 1TB each and build them into a raid 5. When the raid 5 is built, I would copy the information from the raid 1 to the raid 5. After the copy is complete, I would like to expand the raid 5 by adding the disks from the raid 1 to it (creating a large 5 disk, 4TB usable space raid 5 array). Is it possible to do this without data loss? Any assistance will be appreciated. Thanks in advance! James |
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29-01-2008, 07:20 AM
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#2 (permalink) |
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Does he need a reason?
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Re: n5200 pro - raid expansion question
Yup, you can do that.
Or you can add the three disks and tell the Thecus to migrate for a RAID-1 to a RAID-5 array using all the disk. Your data will remain online and accessable while the RAID software alters your setup to use all the disks. It will take a whilefor it to churn through all that data and build the array, but it should be a one step process so just leave it over night. |
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29-01-2008, 09:56 PM
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#4 (permalink) |
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Re: n5200 pro - raid expansion question
Sorry to be replying to myself, but I just thought of something.
If I start with a 2 disk raid 1 configuration, and add another disk, can I just have it migrate the raid 1 into a raid 5 using the extra disk without data loss? After the raid 5 is built, I could add a disk as needed to expand the space (up to 5 disks). Is my understanding correct or am I way off base? Thanks! James |
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09-02-2008, 03:53 AM
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#8 (permalink) |
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Re: n5200 pro - raid expansion question
Whatever you do make sure you have a backup first. :-) I had a partial backup of my RAID5 array prior to going from 3 disks to 4 disks. It failed and now can't access the data. I "assumed" that the upgrade would just work seeing as this is all a RAID array like an N5200 has to do (dedicated NAS - moving from 3 disks RAID5 to 4 disk RAID5 should be perfect).
Anyway - make sure you have a backup. |
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