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scylladb / scylla-stress-orchestrator

Apache License 2.0
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Add RAID class and support for RAID in Cassandra class #12

Open avelanarius opened 3 years ago

avelanarius commented 3 years ago

Add a RAID class which sets up a RAID of chosen devices (for example multiple NVMe disks on i3 instances), performs some tuning of them and sets up a filesystem (by default XFS). A RAID level is configurable (by default RAID-0).

A support of RAID is added to Cassandra class, to set up a RAID array with NVMe devices (tested on i3 instances with multiple disks). Cassandra is installed on this array, so that the data files are stored there.

Note that some NVMe-specific and i3-specific constants are hardcoded in Cassandra class. In the future this code could be made more generic to accommodate different setups (not only i3 instances).

avelanarius commented 3 years ago

cc: @pveentjer (for some reason I don't have the rights to assign you as a reviewer)

pveentjer commented 3 years ago

Can you resolve the merge conflict?