Hello, everyone!
Do you know how to solve the system startup failure issue? Don't worry, the post will share with you.
Problem Description
After 5300 V5 V500R007C60SPC300 is newly installed and powered on, the system fails to start and the error code is 0X4000C939. The possible cause is that the CCDB fails to create a RAID group. (The slot numbers of the four coffer disks are not recorded before the device migration. The coffer disk slots are disordered during power-on.)
Log in to the CLI and run the showsystrace 2 command in the minisystem view.
The startup failure cause is CCDB startup failure.
The error code is 0X4000C939.
Troubleshooting
1. Download recent logs from DeviceManager, open the messages log at the corresponding time point in \Data_Collect\127.127.127.10\Messages or \Data_Collect\127***10\Messages \sys_logs_indisk of controller A, and search for Array UUID.
The Array UUID of /dev/e0a (disk in slot 0) of controller A is 4bcae793***f4b9 , the array UUID of /dev/e2a is 740*****b75.
Open the messages log at the corresponding time in \Data_Collect\***11\Messages or \Data_Collect\127***.11\Messages \sys_logs_indisk of controller B and search for Array UUID.
The array UUID of /dev/e1a (disk in slot 1) on controller B is 4bcae79***4b9 and /dev/e3a (disk in slot 3). The array UUID of the is 74***b75.
2. According to the logs recorded in step 1, the array UUIDs of the disks in slots 0 and 2 are inconsistent, and the array UUIDs of the disks in slots 1 and 3 are inconsistent. As a result, the RAID fails to be created during CCDB startup.
Root cause
Slots 0 and 2 are same nodes. Disks in slots 0 and 2 have the same Array UUID and are configured as RAID1. Disks in slots 1 and 3 are same nodes. Disks in slots 1 and 3 have the same Array UUID and are configured as RAID1. During device migration, the slot numbers of the four coffer disks are not recorded. After the slots are disordered, the array UUIDs of the two disks on the same node are inconsistent. As a result, the RAID fails to be created during CCDB startup.
Solution
Ensure that the array UUIDs of the disks in slots 0 and 2 are the same, and that of the disks in slots 1 and 3 are the same.
After the hard disks in slots 1 and 2 are swapped, the system is powered on again.
That's all, thanks！
