Storage Center has entered Conservation Mode because to remaining free space is critically low. No new volumes can be created. Storage Center will begin to aggressively expire replays. Immediate action is necessary to avoid entering Emergency Mode, which halts all write IO to Storage Center until sufficient space is available.
To resolve conservation mode, you must reclaim consumed space or add more capacity. After Conservation Mode has been resolved, review the system capacity requirements and consider adding disk space.
Do not change the system- wide RAID level if the Storage Center is in Conservation Mode. Although it would seem logical that changing the RAID level from fewer drives to more drives would free space, the Storage Center needs additional space to hold data before restriping it. If you try to change the system- wide RAID level from five or six drives to nine or ten drives, you will run out of free space sooner.
Steps to Perform: To reclaim consumed space, perform each step and wait a few minutes before reassessing available space.
Check the Recycle Bin and empty if applicable.
Identify and expire Snapshotsthat are not necessary.
Delete unnecessary volumes and empty Recycle Bin.
Run whitespace recovery on hosts where applicable.