I was looking for a more detailed explanation of what would happen, if one of more disks, each one declared with a separate --store= flag, breaks. Does the node itself rewrite the content onto the other disks (if there is enough space), is the whole node broken?
(If the answer is already answered somewhere else, please point me to it, I just haven’t found it then.)
In Storage on multiple disks this question was answered:
If a disk dies, can I restore the data to a replacement disk, and re-start CDB?
Yes, or as another reply suggested you can also wipe everything and create a new node; it will repopulate automatically from the data on the other nodes.
The reason I’d like to know that is that would have a setup with approx. 6 SSDs, likely SATA, per node and need to know if it is better to create a RAID out of the disks (probably RAID 0) or to use them separately with --store flags. The RAID 0 might be more performant, but I was assuming that it would be less effort to replace one broken SSD out of six than replace the disk, rebuild the RAID and re-set up the node. (I know RAID 0 is recommended, but write performance is probably not our bottleneck)
Thanks in advance for any help on this,