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Thank you for giving it a try JorgeB! Appreciate your assistance.

Thank your JorgeB, that would be amazing if you can verify if that will work. I can make spare ports by removing unallocated drives if it is indeed possible. If you are able to share the terminal commands that would be icing, I am not well schooled in the CLI.

Thanks for the quick response JorgeB, from a previous post I thought removing subpools of dedup and special was not possible? Am I understanding that I actaully can remove those two specific types of sub pools, if they are not mirrors? This is the current layout of the pool. NAME STATE READ WRITE CKSUM dumbpool ONLINE 0 0 0 raidz1-0 ONLINE 0 0 0 /dev/sda1 ONLINE 0 0 0 /dev/sdb1 ONLINE 0 0 0 /dev/sdc1 ONLINE 0 0 0 raidz1-1 ONLINE 0 0 0 /dev/sdg1 ONLINE 0 0 0 /dev/sdh1 ONLINE 0 0 0 /dev/sdi1 ONLINE 0 0 0 raidz1-6 ONLINE 0 0 0 /dev/sdd1 ONLINE 0 0 0 /dev/sde1 ONLINE 0 0 0 /dev/sdf1 ONLINE 0 0 0 dedup mirror-5 ONLINE 0 0 0 /dev/sdj1 ONLINE 0 0 0 /dev/sdl1 ONLINE 0 0 0 special mirror-3 ONLINE 0 0 0 /dev/sdn1 ONLINE 0 0 18 /dev/sdk1 ONLINE 0 0 18 logs /dev/nvme8n1p1 ONLINE 0 0 0 cache /dev/nvme18n1p1 ONLINE 0 0 0

Is there any information on replacing drives from these subpools with smaller drives? Appreciate the help.