On 6/24/19 8:42 AM, Chris Olson via CentOS wrote: > We have a very old Dell desk top machine that has been running > CentOS 6 for the past five years. It received a new, 1 TB disk > ... > Boot-up this morning lasted about six times as long as usual. > Disk access, as indicated by the disk activity light, is almost > continuous Is it running software raid? Check the output of "cat /proc/mdstat" to see if it's re-syncing an array.