If you have problems with I / O, you first need to update the drivers.
esxcli storage core adapter list
vmkload_mod -s DRIVER_NAME |grep Version
If there are problems with the current version, please post a screenshot here.
Thank you for your information, today I updated firmware ( ??? --> 2.03x14) & driver (from 10.2.309 to 188.8.131.52) for LPe12002 and it succeeded, after I rebooting esxi and it shows an error:
Error loading /s.v00
Fatal error : 10 (Out of resources)
I have to reboot again and I check LPE driver again but it still shows old version (10.2.309) and only firmware changed (2.03x14). I will check it again next Monday.