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How to configure the HP SMART ARRAY P420 RAID controller
Reviewed on 17 January 2022 • Published on 16 July 2021
Requirements:
- You have an account and are logged into the Dedibox Console
- You have a Dedibox dedicated server
- Your Dedibox server has an HP SMART ARRAY P420 RAID RAID controller
How to check the status of the RAID
Log into your server using SSH.
Run the following command to display the status of the RAID:
ssacli ctrl all show config
An output as the following example displays:
Smart Array P420 in Slot 1 (sn: PACCRID1XXXXXX)
array A (SATA, Unused Space: 0 MB)
logicaldrive 1 (1.8 TB, RAID 1, OK)
physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SATA, 2 TB, OK)
physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SATA, 2 TB, OK)Run the following commands to display the SMART values of the disks:
smartctl -a -d cciss,0 /dev/sg0
Then run:
smartctl -a -d cciss,1 /dev/sg0
How to check the battery state of a P420 RAID controller with cache and battery
Run the following command to check the battery state of an HP SMART ARRAY P420 RAID controller:
```
ssacli ctrl all show config detail
```
It resets the cache and battery of the controller:
```
Total Cache Size: 256 MB
Cache Backup Power Source: Batteries
Battery/Capacitor Count: 1
Battery/Capacitor Status: OK
```
See Also