Smart informations

[dominique.carbonnier@…]

How can we get the smart informations of sas disks behind a raid controller such as megaraid_sas or megasr ?

[gandalf]

Hi,

It's a bit tricky but here is how to extract this information from megacli.

First you need to get Enclosure and Slot IDs of the target disks.
Here is the command to run for the first adapter:

megacli -PDlist -a0 | grep -e '^Enclosure Device ID:' -e '^Slot Number:'

In my case it returns:

Enclosure Device ID: 32
Slot Number: 0
Enclosure Device ID: 32
Slot Number: 1

Now I can ask megacli to return me details about theses physical disks:

megacli -pdInfo -PhysDrv [32:0,32:1] -a0

Looks at the following lines:

Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0

Best regards, Adam.