Re: Trouble using smartctl with LSI megaraid controller

On 11-Feb-2017 12:48, [email protected] wrote:
> A few questions....
> 1. Does anyone know the correct syntax to get it working in the 
> smartd.conf
> file?

Sorry, no.

> 2. There are two partitions in this system /dev/sda and /dev/sdb.  How 
> do I
> know which drive Id (DID) belongs to which partition and does it matter 
> if
> I assign a physical drive to the incorrect partition?

Get the "megacli" program and install it.  Then you can run things like 
this:

SNAME=`hostname -s`
NOW=`date`
OFILE=/root/$SNAME.megaraid.info

echo "Megaraid information for $SNAME collected $NOW" > $OFILE
echo "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=" >> $OFILE
echo "General Information" >> $OFILE
megacli -AdpAllInfo      -aAll | tr -d '\r' >> $OFILE
echo "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=" >> $OFILE
echo "Battery backup" >> $OFILE
megacli -AdpBbuCmd       -aAll | tr -d '\r'>> $OFILE
echo "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=" >> $OFILE
echo "Virtual disks" >> $OFILE
megacli -LDInfo    -Lall -aALL | tr -d '\r'>> $OFILE
echo "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=" >> $OFILE
echo "Physical drives" >> $OFILE
megacli -PDList          -aALL | tr -d '\r'>> $OFILE
echo "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=" >> $OFILE
echo "Patrol read" >> $OFILE
megacli -AdpPR     -Info -aALL | tr -d '\r'>> $OFILE
echo "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=" >> $OFILE
echo "DONE" >> $OFILE


> 3. Is there a way to check all the drives on a single partition at once
> instead of having to check them individually with the sat+megaraid,N
> syntax?  There are 20 physical drives on this system.

You mean with one "test all disks" smartctl command?  No, I don't think 
that is possible.
You can certainly start all of the tests sequentially with no delay, 
which is pretty
much the same thing.  Then wait however long is necessary for that disk 
type and read back all the results.  In theory.  For some reason my test 
script does them sequentially - I may have been worried about  what the 
RAID would do if all the disks were busy self testing at the same time.  
Doing them sequentially in a script (with or without delays) isn't a big 
deal, something along the lines of:

/usr/sbin/smartctl -t long /dev/sda -d sat+megaraid,0
sleep 10300
logger "Done smartctl -t long  /dev/sda -d sat+megaraid,0"
/usr/sbin/smartctl -t long /dev/sda -d sat+megaraid,1
sleep 10300
logger "Done smartctl -t long  /dev/sda -d sat+megaraid,1"
etc.

then read all the results.  Use a loop if you don't want to write them 
all out. It would also be fine to read the result for a disk immediately 
after each long test completes.

> 4.  Once I enable smartctl on the command line for a drive is it on
> permanently or does it need to be enabled through the smartd.conf file?

Once enabled it should stay on until the system reboots.  That command 
changes a state
which is stored on the drive.  The state will not survive a power cycle.

Regards,

David Mathog
[email protected]
Manager, Sequence Analysis Facility, Biology Division, Caltech

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