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CONTAP-788301: Unexpected Node Restart During Snapshot Operations on Hybrid Aggregates

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Issue

On systems using hybrid aggregates, Snapshot operations can result in incorrect space reporting. A node can also stop unexpectedly during startup with the following error:
assertion "!(scan->wss_u.blks_used->wbu_sum_blks > 0) || (scan->wss_u.blks_used->wbu_sum_blks == 1 && !scan->wss_u.blks_used->wbu_scan_ssd_tier)" failed: file "prod/common/wafl/scanners/scan_blks_used.c", line 3036

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