sd.conf and lpfc.conf/qla.conf configured correctly ?

dynamox is right. A situation like this is very likely caused by misconfiguration with persistent binding. If you can show the disk device names (cXtYdZ) that should show whether leadville driver or non-leadville driver is in use (the latter requires persistent binding).

If it is non-leadville driver / persistent binding, in this case most likely by adding a few entries in sd.conf followed by a reconfiguration reboot should fix the issue.

If this is leadville driver then it's a different story but I don't recall seeing anything like it.

In fact, there was a problem on the power supply SPS, we changed it today and

all the LUNs were seen.

Thanks for your support

Regards

Consty