Resiliency in Tiered Storage Spaces Volume

Question

I am using Windows 10

When creating an SSD tier and HDD tier with New-StorageTier command, I am able to set ResiliencySettingName (If unset, it seems to default to Mirror).

Then, when creating a Volume on these Tiers with New-VirtualDisk -StorageTiers @($tier_ssd, $tier_hdd) I can once again provide ResiliencySettingName.

What does that affect?

I am looking to for example make something like "Mirror-accelerated parity" by having two SSDs in mirror on top of several HDDs in some parity setting.

Answer 1

Seems like the New-VirtualDisk -StorageTiers command creates its own Tiers based on the input Tiers.

For example, from my SSDTier and HDDTier it created MySpace-SSDTier and MySpace-HDDTier (Without deleting the original tiers, I could then delete them with Remove-StorageTier to no ill effect)

Seems if I specify the ResiliencySettingName, it overrides the Resiliency of the input Tiers and creates both new Tiers with this Resiliency. Whereas if I don't specify, they inherit the Resiliency of the input Tiers, just as I needed.