Solved: Amber blinking light indicvating (HP ProLiant DL380p G8) that Cache Module Status is disabled because a capacitor has failed to charge to an acceptable level | Experts Exchange
HP 660093-001 Super Capacitor Battery Pack with 36" Cable for Smart Array P420 & P421 2GB FBWC Module
FreeNAS only detecting 2 drives of Smart Array P420i | TrueNAS Community
Amazon.com: Andglim 462976-001 650mAh Battery Replacement for HP Smart Array P P212 P400 P410 P410i P411 P800 Raid Controllers Series 460499-001 462969-B21 381573-001 398648-001 HSTNM-B011 4.8V : Electronics