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The storage pool is running out of capacity - S2D / Nested resiliency

StephanG 846 Reputation points
2023-07-28T05:26:13.7133333+00:00

Hi everyone,

every day a new issue with S2D ;)

Yesterday we got the warning: The storage pool is running out of capacity. But where? We have 2 volumes with nested resiliency set up. One with Nested 2 Mirror and one with Parity with 1 TB in size for testing.

So i thought that setting it on the volume is already reserving space for losing a hard drive?! Why should i also reserve space on the pool for this?

They say storage is cheap - but SSDs are not.

Can anyone help me out with this?

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Best regards

Stephan

Windows for business | Windows Server | Storage high availability | Clustering and high availability

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  1. Limitless Technology 44,831 Reputation points
    2023-07-28T14:22:54.9+00:00

    Hello

    Thank you for your question and reaching out.

    Two things are noted by you. Volume and pool reserve space. A fixed amount of storage pool space is assigned when a new volume with storage spaces is created.

    The storage pool's reserve capacity is there in case a physical disc fails, enabling repair of the virtual discs (storage spaces/volumes) to begin before the disc is changed or restored. Without a reserve, you can allocate volumes and fill the storage pool; the only drawback is that repairs won't start until all of the physical discs are present.

    --If the reply is helpful, please Upvote and Accept as answer--

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