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RN214 replacing hard disks
Dear All, I am using my ReadyNas RN214 with 3x2TB disks in Raid 0 mode (eg. 6TB) with no redundancy, so I want to replace them 2x6TB wd red series for upgrade. I have checked with RAID calcul...
Since you have configured the 3 HDDs you have to RAID-0 then for you to be able to use X-RAID you will have to destroy the volume or do a factory reset and start from scratch.
You will have to backup all your data first, then turn off your NAS and replace/insert the new drives (2x6TB, 2x2TB). You can then perform a Factory reset from the Boot Menu.
https://kb.netgear.com/22891/How-do-I-access-the-boot-menu-on-my-ReadyNAS-104-204-214-or-314
This will reset the NAS and reformat the drives and be configured to X-RAID RAID5.
HTH
Leventh wrote:
so I want to replace them 2x6TB wd red series for upgrade.
My advice is to avoid the WD60EFAX, because it is an SMR drive. Get the older WD60EFRX, or move up to the 8 TB Reds (which use PMR).
SMR drives will give uneven performance with write speeds, and there are some scenarios where raid resync or expansion can be extremely slow.
Leventh wrote:(For existing data, I think I have to backup them to another storage, because of Raid 0 configuration)
Correct. Then insert all your drives, and do a factory default procedure via the boot menu. Reconfigure the NAS, and then restore your files from the backup.
StephenB wrote:My advice is to avoid the WD60EFAX, because it is an SMR drive. Get the older WD60EFRX, or move up to the 8 TB Reds (which use PMR). SMR drives will give uneven performance with write speeds, and there are some scenarios where raid resync or expansion can be extremely slow.
Dear Stephen,
Thanks for your advice,
Yes, you are right and I know the WD EFAX series has performance bottleneck and they are selling these without informing customers which is not acceptable (at least by me) being such a big manufacturer...
(As far as i know the Toshiba still manufacturing PMR on N300 series, except P300)
While the new 2TB-6TB parts are all SMR drives.
"The performance difference between the two is significant, with the 2TB -6TB drives in the 150MB/s to 180MB/s range, while the 8TB-14TB drives run at 198MB/s to 215MB/s. While SMR drives are cheaper to manufacture than PMR drives, none of the savings is being passed on to customers as far as we can tell" (according to extremetech.com)
So, lucky me that i already have the 2TB and 6TB EFRX series (actually i bought 6TBs couple days ago after some research in the market ;))
Thanks again.
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