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the install command is handy for making directories and setting permissions/etc all in one go: install -m 755 -o postgres -g root -d /var/run/postgres
install
install -m 755 -o postgres -g root -d /var/run/postgres
Backblaze finds only a few particular SMART metrics useful for predicting and detecting hard drive failure
Backblaze uses SMART 5, 187, 188, 197 and 198 for determining the failure or potential failure of a hard drive.
ping -a produces an audible ping
ping -a