Migrating from 2-bay RAID1 to 4-bay RAID1
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Migrating from 2-bay RAID1 to 4-bay RAID1
I currently have a 2 bay NAS with two 4TB disks configured as RAID1
I’m looking to upgrade to a 4 bay NAS with the two existing disks, expanded (probably) with two 6TB disks to make a 10TB RAID1 storage pool
What’s the best way to do the migration WITHOUT LOSING ANY EXISTING DATA in the two current 4TB disks??
Thanks for all suggestions. These disks currently hold my wife’s entire digital photo collection and, while I do have backups, I’d rather avoid the stress of any data loss !!
Cheers
Phil G
I’m looking to upgrade to a 4 bay NAS with the two existing disks, expanded (probably) with two 6TB disks to make a 10TB RAID1 storage pool
What’s the best way to do the migration WITHOUT LOSING ANY EXISTING DATA in the two current 4TB disks??
Thanks for all suggestions. These disks currently hold my wife’s entire digital photo collection and, while I do have backups, I’d rather avoid the stress of any data loss !!
Cheers
Phil G
Last edited by dolbyman on Thu Mar 30, 2023 4:02 am, edited 1 time in total.
Reason: fixed title
Reason: fixed title
- dolbyman
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Re: Migrating from 2-bay RAID1 to 4-bay RAD1
You cannot migrate to RAID10
What you can do:
- Make/Check your external backups
- Move the 2 4TB disks over (see migration compatibility guide)
- replace the 4TB with 6TB disks
- migrate the RAID1 to RAID5 or RAID6 (if you need dual parity)
forget about RAID10
What you can do:
- Make/Check your external backups
- Move the 2 4TB disks over (see migration compatibility guide)
- replace the 4TB with 6TB disks
- migrate the RAID1 to RAID5 or RAID6 (if you need dual parity)
forget about RAID10
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Re: Migrating from 2-bay RAID1 to 4-bay RAD1
Ahhh, I see. RAID1 is only for single disks?
So, I COULD have a pair of 4TB disks mirrored, and a second pair of 6TB disks also mirrored
So 4TB RAID1 and 6TB RAID1
That may be enough
So, I COULD have a pair of 4TB disks mirrored, and a second pair of 6TB disks also mirrored
So 4TB RAID1 and 6TB RAID1
That may be enough
- dolbyman
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Re: Migrating from 2-bay RAID1 to 4-bay RAD1
No, RAID1 is for RAID1 .. Single disks are single disks
You could .. but that's not what you described .. you wanted 4 same size disks RAIDed together
I showed you a path to RAID5 or RAID6
================
So did you want to keep the original drives AND get 2x6TB ?
a RAID5 makes more sense still
4TB+4TB+6TB+6TB in RAID5 = ~12TB(*0.9)
Two RAID1 is costing you overhead
4TB+4TB & 6TB+6TB=~10TB(*0.9)
Makes no sense to go for two RAID1
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Re: Migrating from 2-bay RAID1 to 4-bay RAD1
Ahh (again!)
Yes, no need to dump the 4TB drives yet, yet I need more space
Thanks for the RAID5 suggestion
When I get closer to actually doing it, I may be back for baby-step directions!
Much appreciated
Yes, no need to dump the 4TB drives yet, yet I need more space
Thanks for the RAID5 suggestion
When I get closer to actually doing it, I may be back for baby-step directions!
Much appreciated
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Re: Migrating from 2-bay RAID1 to 4-bay RAD1
Oh, and kind of a related question!
Do QNAP NASs have a limit to how much disk they support? Is going to 12TB on a SOHO 4bay NAS going to be “difficult”??
Do QNAP NASs have a limit to how much disk they support? Is going to 12TB on a SOHO 4bay NAS going to be “difficult”??
- dolbyman
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Re: Migrating from 2-bay RAID1 to 4-bay RAD1
Depends on your NAS model
If CAT1, then you are limited to volume sizes of 16TB max and migrating the disks to a CAT2 will not change that (Legacy Volume will be migrated)
So without disclosure what NAS system you have , no answer can be given.
If CAT1, then you are limited to volume sizes of 16TB max and migrating the disks to a CAT2 will not change that (Legacy Volume will be migrated)
So without disclosure what NAS system you have , no answer can be given.
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Re: Migrating from 2-bay RAID1 to 4-bay RAID1
Currently my two 4TBs are in a TS269, but I’m looking at a TS431 as an upgrade
Also wondering if it’s easier in the long run to just empty the disks, reformat them and build the new storage “subsystem” then migrate the data as a separate step. I think I have enough temporary storage to stage through other NASs (Hybrid Backup Sync is a wonderful thing) - I certainly have the time to spare to do it properly! In fact, I think that’s what you’re saying
Also wondering if it’s easier in the long run to just empty the disks, reformat them and build the new storage “subsystem” then migrate the data as a separate step. I think I have enough temporary storage to stage through other NASs (Hybrid Backup Sync is a wonderful thing) - I certainly have the time to spare to do it properly! In fact, I think that’s what you’re saying
- dolbyman
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Re: Migrating from 2-bay RAID1 to 4-bay RAID1
That migration will not work
https://www.qnap.com/en/nas-migration?o ... ion=ts-431
But mark my words about backup, a RAID is NOT a backup, so if you have to scramble now to offload the data from one unit to another, you apparently do NOT have backups
A tearful lesson that many have learned after it's too late (you can get USB backup drives for pretty much dirt cheap nowadays .. there is no excuse)
https://www.qnap.com/en/nas-migration?o ... ion=ts-431
But mark my words about backup, a RAID is NOT a backup, so if you have to scramble now to offload the data from one unit to another, you apparently do NOT have backups
A tearful lesson that many have learned after it's too late (you can get USB backup drives for pretty much dirt cheap nowadays .. there is no excuse)
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Re: Migrating from 2-bay RAID1 to 4-bay RAID1
I have backups (ex database guy here). But moving the data, I’d rather keep the backups in my back pocket and stage the data elsewhere. Then during the migration, I’ll have TWO backups
Did I mention I’m an ex database guy? There really is no such thing as “too many backups”
Did I mention I’m an ex database guy? There really is no such thing as “too many backups”
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Re: Migrating from 2-bay RAID1 to 4-bay RAID1
Thanks a lot for your helpdolbyman wrote: ↑Thu Mar 30, 2023 4:52 am That migration will not work
https://www.qnap.com/en/nas-migration?o ... ion=ts-431
Creating new NAS it is, then move the data to it
- tonylima
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Re: Migrating from 2-bay RAID1 to 4-bay RAID1
Re backups, I've been hot-swapping new drives (one at a time), basically creating what I hope is a clean copy of all the disks. I then plug the copies into the new enclosure. If this won't work, please let me know. I'm having issues that I'll describe in another thread.
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TS-419P II, TS-451+, TS-431P3, TS-832PX
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Ricoh SP C360SFNw multifunction
Silicon Valley, CA
TS-419P II, TS-451+, TS-431P3, TS-832PX
Mostly Apple shop (vmWare Fusion when absolutely required)
Ricoh SP C360SFNw multifunction
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Re: Migrating from 2-bay RAID1 to 4-bay RAID1
Hot swapping is not "copying" in any usable way and is DEFINITELY NOT any form of backup.
QNAP TS-563-16G 5x10TB Seagate Ironwolf HDD Raid-5 NIC: 2x1GB 1x10GbE
QNAP TS-231P-US 2x18TB Seagate Exos HDD Raid-1
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QNAP TS-231P-US 2x18TB Seagate Exos HDD Raid-1
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