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Adding used HDD's to raid array
Hi,
just making sure i dont corrupt my raid.
i have a 4 disc array of 4+4+2+2 and want to replace the 2TB hdd's with 4TB hdd's.
the only thing is, the 4TB hdd's i have are taken out of a Synology NAS drive.
can i just replace the 2TB's with the used 4TB's one by one? or do i need to do something with the discs before adding? want to make sure not to corrupt the raid. Or does the readynas format the discs back to factory format automatically?
if i need to prepair the discs, any advice on what do and software to use. They are WD Reds.
thanks for advise.
just making sure i dont corrupt my raid.
i have a 4 disc array of 4+4+2+2 and want to replace the 2TB hdd's with 4TB hdd's.
the only thing is, the 4TB hdd's i have are taken out of a Synology NAS drive.
can i just replace the 2TB's with the used 4TB's one by one? or do i need to do something with the discs before adding? want to make sure not to corrupt the raid. Or does the readynas format the discs back to factory format automatically?
if i need to prepair the discs, any advice on what do and software to use. They are WD Reds.
thanks for advise.
xbmcgotham wrote:
can i just replace the 2TB's with the used 4TB's one by one?Hot swapping the disks into your NAS should work. As you say, do them one at a time (waiting for resync).
You can also zero them in a Windows PC (using lifeguard's erase function), or delete the partitions (with Windows Disk Manager). Both methods unformat the disks, so the NAS will see them as blank. That shouldn't be necessary, but does no harm.
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xbmcgotham wrote:
can i just replace the 2TB's with the used 4TB's one by one?Hot swapping the disks into your NAS should work. As you say, do them one at a time (waiting for resync).
You can also zero them in a Windows PC (using lifeguard's erase function), or delete the partitions (with Windows Disk Manager). Both methods unformat the disks, so the NAS will see them as blank. That shouldn't be necessary, but does no harm.
- Thanks again for your quick response and helpful answer. have a nice weekend.
Hi StephenB
Would a quick erase (erasing only the first and last million blocks) be sufficient or does it need to be a full erase? Wondering as it would safe me 24 hours. You might know. ;-)
xbmcgotham wrote:
Would a quick erase (erasing only the first and last million blocks) be sufficient or does it need to be a full erase?
The quick erase is enough to remove the partitioning, and it does save a lot of time.
The full erase can sometimes uncover issues that the long generic test misses. So that can be useful if you aren't sure about the disk condition.
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