Step 1 Restart the S6800E. After 20 minutes, the S6800E can be logged in to because the dirty data has been flushed to data disks during the previous power-on.
Step 2 Onsite engineer should be patient when a similar fault occurs.
1. According to the collected logs, the customer connects seven disk enclosures to the controller enclosure and creates many 100 GB LUNs. Therefore, LUN connection takes about 18 minutes.
2. The storage system takes about 15 minutes to flush the dirty data from coffer disks to data disks. Therefore, the storage system is still in the safe mode after it has been powered on for more than 20 minutes. 3. Although the services in the storage system have been stopped before removal and the disk indicators are off, the dirty data in coffer disks is not flushed to data disks immediately. Therefore, the dirty data still exists in coffer disks when the storage system is powered on again.