RAID 5 on NAS542

fabiolodi

Hi,
I have an 8 TB HD into my NAS542 and the space is almost finished. I want use other two 8TB HDD and create a RAID 5.
The questions are: when i'll create the RAID, data on my first disk, will lost?
Is the RAID5 the best solution to have the maximum capacity available with 3 HDD and the possibility to change one broken HD?
Thanks
Fabio


#NAS_Jan_2020

Kuki

Hi Fabio,

it depends.

Read here: https://kb.zyxel.com/KB/searchArticle!gwsViewDetail.action?articleOid=015008&lang=EN

I just made the experience (with Raid1 > Raid5): If you have volume and not a volume in a disk group, it should work without data loss.

Mihawk

If one disk fails in Raid 5, no data loss can happen.
If two or more disks fails, you can get data loss.

The space of RAID 5 with 3 X 8 TB disk.


The space of RAID 5 with 4 X 8 TB disk.