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The original was posted on /r/sysadmin by /u/Stock- on 2026-03-28 10:30:19+00:00.

Setting up a new 3-node Vmware cluster with R760s (Fibre Channel direct-connect). The ME5024 has 20x 2.4TB HDDs and 4x 1.6TB SSDs.

I’m leaning towards one big Pool on Controller A using ADAPT for the HDDs then Raid 10 for the 4x SSD so I get faster rebuilds and easier management of a single Datastore. Is the performance hit of leaving Controller B idle (Active/Passive essentially) noticeable with only 20 spinning disks, or should I stick to the 50/50 split the wizard recommends?

I know I sort of messed up and didn’t buy 4 extra spinning disks…but at the moment its not really something I can do.

thinking of going the following since i have two clusters.

1 for just regular VM’s with sql database + apps

Controller a - 4x 1.6tb SSD Raid 10 an 20x adpat

Controller b - idle

1 cluster dedicated to just cisco ise

thinking

Controller A - 4x 1.6tb SSD Raid 10 10x Spinning Raid 6,

Controller B -10x Spinning Raid 6