Configure an HP Smart Array P420 RAID controller

How to configure the HP SMART ARRAY P420 RAID controller

Reviewed on 25 September 2023 • 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 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