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I'm trying to read the SMART data from some harddisks attached to a perc H710p but neither ESXI nor the idrac7 will give me specifics. The idrac will display a status for the individual drives but not the actual smart values.

Does anyone know how I can get this data?

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Why do you need SMART values? The RAID controller uses that along with other parameters to determine drive health. Trust it! – ewwhite Jan 28 '14 at 13:25
We have a few SSDs and would like to monitor there health more closely so we can more accurately predict there lifespan, what we don't want is just an alert one morning indicating a bunch of disks are about to die. – user207138 Jan 28 '14 at 19:46

If you can use the smartctl utilities you can query a drive behind an HP or Dell perc (MegaRAID) controller:

smartctl -l ssd -d megaraid,0 /dev/sda

and graph that using your monitoring tool to extrapolate when a drive is going to run out of wear levelling space:

wear level graph

Too bad you're on ESXi.

If you can't read that directly, wait for drive to throw out a SMART alert - that'll happen before it runs out.

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