Pool Configuration

[Davvo]

You want to read the following.

ZFS Storage Pool Layout

This resource was originally created by user: @Davvo on the TrueNAS Community Forums Archive. https://www.truenas.com/community/resources/zfs-storage-pool-layout.201/download This amazing document, created by iXsystems in February 2022 as a “White Paper”, cleanly explains how to qualify pool performance touching briefly on how ZFS stores data and presents the advantages, performance and disadvantages of each pool layout (striped vdev, mirrored vdev, raidz vdev). It also presents three common …

Assessing the Potential for Data Loss

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But to give you short answers:

@Fastline

Does this mean the safe could be two vdevs containing 8 vdevs each? I heard that more the vdevs, more the IOPS and speed improvements. Is that true?

Yes and Yes.

@Fastline

Also, would it be safe when using 8 vdevs containing two drives, where one drive is mirror in each vdev set? Is that a safe layout?

Not particularly.