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8/15 Lulu: No security updates available via YUM on cluster. yum updated Crane nfs server(CRAN-19). yum updated all crane workstations;
6/19/2019 Lulu: No security updates available via YUM on cluster. yum updated Crane nfs server(CRAN-19). yum updated all crane workstations; Clean out some crashing log message from Lancaster headnode. (system crashes on 3/2/2019) ; I didn't update Synology and didn't do windows update on server and I didn't do firmware update on Linux workstations. We need do them and forcefsck headnode for next maintenance. kml005 /dev/sdc has some file system issue, I fixed them and it is working now.