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getting SMART info when disks are in a RAID?

 
michaelvanhorn
Occasional Contributor

getting SMART info when disks are in a RAID?

 

On a DL380 G7 running RHEL 5.7. There are two disks in a RAID array that is setup via the Smart RAID controller. Is there a way for the operating system (specifically, smartctl) to get the SMART information from the disks themselves, even though they are in the RAID (and only appear to the OS as /dev/cciss/c0d0)?

 

Thanks!

 

Mike VanHorn

michael.vanhorn@wright.edu

Mike VanHorn
1 REPLY
Johan Guldmyr
Honored Contributor

Re: getting SMART info when disks are in a RAID?

As far as I know, no, you cannot get the smart details 'raw' via smartctl for a disk when it's behind a RAID controller. AFAIK this is the same for all vendors. Sometimes vendors would have a tool that can give you some or parts of the information.

For smartctl you need JBOD access to the disks.

With HP smart array products you can use hpacu, hplog (part of hp-health) to get some details.

A lot of information (like "Read Errors Hard") can be found in the ADU report. With hpacucli you generate the report (defaults to .zip) with:

hpacucli help diag