I'm setting up a new ES cluster on a set of RHEL servers, each of which 5 x 1Tb disks. I'm trying to work out the best way to configure the storage. Our RHEL admin has described two main options:
Mount each of the 5 disks separately in RHEL, and then list these as 5 separate path.data locations in ES config
In RHEL, configure the 5 disks as a single 5Tb storage pool with a single mount point, and then list this as single path.data location in ES
I can see potential advantages to both. In #1, ES has direct visibility of the underlying disks so this might potentially have performance advantages? However #2 is easier to manage and the storage pool can be expanded or shrunk more easier without ES configuration.
Haven't been able to find much documentation on best approaches with multiple disks per server - appreciate any pointers or comments! Thanks.