when we uploaded a new IOS to sup-bootflash, it got
uploaded the image size was about 740mb and the available memory size was about 780mb.
after uploading the image, we gave verify /md5 command for OS verification. As soon as we gave this, the sup engine started behaving weird. It got kind of struck , it started saying native vlan mismatch on trunk ports, spanning tree loop on ports, ULD error, all kind of switching error popped up. The sup engine become acting very strange and it never tried to failover to the standby sup engine.
when we physically went to saw , the status LED of sup was red , when we tried to do failover to the other sup it dint happen, we then removed the broken sup, then it got failed over. this led to a disaster, our whole dc wasn't functioning properly.
What could have caused this problem??