Update RAID 10 NAS storage

Question

I've got a NAS with 4x500GB HDD in RAID 10. I want to change the actual HDDs to others of 1TB capacity, but I want (if possible) to preserve the data without having to copy it outside the NAS. The NAS I'm using is a Synology DS411.

Right now this should be the layout:

HDD#1(500GB) = A1
HDD#2(500GB) = A1
HDD#3(500GB) = A2
HDD#4(500GB) = A2

The idea is changing HDD#2 and HDD#4 for the new 1TB HDDs so HDD#1 and HDD#3 copy the data to the new HDDs, then swap HDD#1 and HDD#3 with the other 1TB HDD when the RAID is rebuilded. Is this possible or should I backup all the data to an external source and then rebuild the RAID from scratch with the new HDDs?

What NAS storage do you use? Some storage don't support hot increasing of logical unit where located you partition. — Aleksandr Makhov, Feb 13 '13 at 08:18

score 1 · Accepted Answer · answered Feb 13 '13 at 09:21

1

First, you should backup anyway. Point. No backup means the data is useless to you - congratulation. Things ALWAYS can go bad.

Second, i would just go disc by disc. Take out, rebuild until finished, one disc after the next.

answered Feb 13 '13 at 09:21

TomTom

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Took around 1 hour per disk to rebuild the RAID, but Synology NAS went without problems with the upgrade. – Peter Mar 06 '13 at 09:27

Update RAID 10 NAS storage

1 Answers1