Data ONTAP 8
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Starting with clustered Data ONTAP 8.3, if the volume retention queue is enabled, Data ONTAP will place the deleted volumes into a queue and delete them after a period of time.
If the cluster is upgraded from ONTAP releases 8.2.x to 8.3 and above, all the existing vservers will get the volume recovery queue capability. However, the volume delete retention hours must be manually configured for those vservers. Newly created vservers under 8.3 and above will get default 12 hours retention.