NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Solved
Raid 1 on ReadyNAS 204 with 4 discs
I just got a ReadyNAS 204 with 4 8TB hard drives yesterday. It has 6.10.2 firmware. It came preconfigured with Raid 5, but I want Raid 1 with a 2-disc volume, mirrored to the other 2 discs.
I have read every word in the Flex-RAID User Guide, and it does not tell me how to do this step-by step. I have never configured RAID before and I am finding it very confusing. I see that I am to delete the existing volume, which I did, and then select discs to configure as RAID 1, but the User Guide has no instructions on how to do this. I find that if I select all 4 discs to create a new volume, I am not given the option of choosing RAID 1, but only RAID 5.
I then selected the first 2 drives to create a new volume, and can choose RAID 1 for those 2 drives. At that point the "Number of RAID groups" and "Number of disks per RAID group" options were greyed out and I could not select them. The first 2 drives are now synching, which will take 18 hours, and I have a feeling that I have not done this correctly.
Can anyone advise on how to set up RAID 1 with 4 discs so that I have one data volume on 2 discs which is being mirrored to the other 2 discs?
Maeve1956 wrote:
Can anyone advise on how to set up RAID 1 with 4 discs so that I have one data volume on 2 discs which is being mirrored to the other 2 discs?
The mode you are describing isn't called RAID-1. It's called RAID-10.
So try destroying the RAID-1 volume you created, and then create a RAID-10 volume after selecting all 4 disks.
10 Replies
Maeve1956 wrote:
Can anyone advise on how to set up RAID 1 with 4 discs so that I have one data volume on 2 discs which is being mirrored to the other 2 discs?
The mode you are describing isn't called RAID-1. It's called RAID-10.
So try destroying the RAID-1 volume you created, and then create a RAID-10 volume after selecting all 4 disks.
Thank you. I was just reading about RAID 10 last night, and I suspected that was the method I needed to use. I had not even heard of RAID 10 before - been using RAID 5 at work for years and that was the only one I was really familiar with. Learn something new every day, that's my motto. Thanks again!
P.S. It's going to take 49 hours to sync! Patience is a virtue.
RAID 10 is a RAID1 (mirror) of two RAID0 (concatenated) drives. That does sound like what you want, though you've not quite described it that way. I'm not quite sure why you'd want that over RAID5 or RAID6, though. The speed gain is not going to be realized in an RN204, and you still can lose the volume with a second drive failure.
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
