The Reserved Capacity for a Storage Resource Pool (SRP) on a VMAX All Flash array is set to 15%. A TimeFinder SnapVX snapshot is created for a Storage Group containing 10 devices. An application is actively performing read and write I/O to these devices. Allocation for the SRP reaches 85%.
What happens to the snapshot?
When the allocation for the Storage Resource Pool (SRP) reaches 85%, it means that 85% of the reserved capacity has been used. The Reserved Capacity is specifically set aside to ensure the system can handle necessary snapshot and delta operations even under high usage. Therefore, while the snapshot will persist, new snapshot deltas cannot be created due to the lack of available reserved capacity. This helps to ensure data integrity for the existing snapshot without consuming any more of the already limited resources.
A. Snapshot persists but new snapshot deltas cannot be created
should be terminated: Existing and new snapshots are affected if the Free Capacity of the SRP falls below the set Reserved Capacity.