cache is disabled in Smart Array P212 because of battery

physicaldrive 2I:1:5 Array D Cache Status Details: Cache disabled; ADG enabler missing Cache Disable

I'm encountering an issue with the Smart Storage Administrator displaying the following message: The cache for Smart Array P440 in Slot 1 has

hpe 500w flex slot platinum hot plug low halogen power supply kit The P212 is ideal for RAID 0, 1, 1+0, and can be upgraded with 256 MB Cache module for RAID 5, 5+0 and additionally with Battery Kit and Smart Array

hp cache status problem detected p212 in slot 5 I'm encountering an issue with the Smart Storage Administrator displaying the following message: The cache for Smart Array P440 in Slot 1 has