We are using HP Vertica database 7.2 community version. 300GB of data on one node. Thats a small amount of data.
HP officially recommends RAID 1+0. https://community.dev.hpe.com/t5/Vertica-Knowledge-Base/RAID-Storage-for-HPE-Vertica/ta-p/234225
But I do not envision a problem with write performance which is the point of RAID 0. I am not planning to load, insert or write large amounts of data. I am planning to query large amounts of data, but not write a lot. It seems to me that RAID 1 is sufficient.
Is there anything wrong with using RAID 1 instead of 1+0?