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ReadyNAS 104 in X-RAID mode does not expand adding more disks
Hello, I have a ReadyNAS 104, which until now has worked fine with 2 4Tb hdd. Since I wanted to expande the storage capacity I added 2 more disks, both WD Red as the former two but with 3Tb capac...
gpb61 wrote:
When I will get other two 4TB disks, I can destroy the smaller volume (backing it up before), and then switch back the larger volume to X-raid and eventually adding the 2 4TB disks.
Is that correct? Am I running the risk to lose data?
Your process will work (and adding a single 4 TB drive will increase your capacity by 4 TB).
I will add my backup "lecture" though (some users depend more on RAID than they should). Your data is at risk if you aren't regularly backing up the NAS. It's most vulnerable when you are adding/replacing disks (but there is always some risk). RAID arrays and NAS hardware can/do fail, and sometimes that results in data loss. It is never wise to trust your data to a single device (or a single cloud service for that matter).
So I do recommend putting a backup plan in place. External USB drives are one common approach.
I also recommend getting a UPS for the NAS, since unexpected power loss can create problems. That's less critical than backup though.
Thanks for the swift reply.
I think there is a third solution (waiting for the buying of larger disks). I could switch to flex-raid and create two volumes, one for the two bigger disks and another one for the rwo smaller.
When I will get other two 4TB disks, I can destroy the smaller volume (backing it up before), and then switch back the larger volume to X-raid and eventually adding the 2 4TB disks.
Is that correct? Am I running the risk to loose data?
Thanks a lot
gpb61 wrote:
When I will get other two 4TB disks, I can destroy the smaller volume (backing it up before), and then switch back the larger volume to X-raid and eventually adding the 2 4TB disks.
Is that correct? Am I running the risk to lose data?
Your process will work (and adding a single 4 TB drive will increase your capacity by 4 TB).
I will add my backup "lecture" though (some users depend more on RAID than they should). Your data is at risk if you aren't regularly backing up the NAS. It's most vulnerable when you are adding/replacing disks (but there is always some risk). RAID arrays and NAS hardware can/do fail, and sometimes that results in data loss. It is never wise to trust your data to a single device (or a single cloud service for that matter).
So I do recommend putting a backup plan in place. External USB drives are one common approach.
I also recommend getting a UPS for the NAS, since unexpected power loss can create problems. That's less critical than backup though.
You are totally right, and all my data on the NAS (UPSed) are backed-up on external USB devices. Once I had a fire problem and from that moment on I do not trust anymore on a single storage device.
Just the last question (sorry), so that I can have a good picture of the whole.
If I should follow your suggestion to make a facory reset with the disks in place (the 2 4TB and 2 3TB), is there e prefferred slot where to put them? I mean, is it better to put the larger ones onto the first two channels or is it the same whatever channel I use?
I relally appreciated your work, thanks.
gpb61 wrote:
If I should follow your suggestion to make a facory reset with the disks in place (the 2 4TB and 2 3TB), is there e prefferred slot where to put them? I mean, is it better to put the larger ones onto the first two channels or is it the same whatever channel I use?
It doesn't matter what slots the drives are in. You can do the reset from the web UI, or from the front panel. The web UI is a bit easier.
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