Ubuntu 16.04, Lenovo T440p, 2x Seagate BUP Slim RD USB Hard disks
Hello,
I'm duplicating a 2TB USB hard disk as a backup ahead of a two month travel. I've used this technique for years:
# pv /dev/sdb | dd of=/dev/sdc
Once complete, I take an MD5SUM to assure myself the volumes are correct.
Yesterday, I woke up to find it was hung at 520GB, with a transfer rate of 19KiB/s and the ETA timer frozen. CTRL-C, couldn't kill it. It didn't occur to me that kill -9 might kill it as I wasn't coffee'd up yet. I instead told the laptop to shutdown. It didn't. I had to force shutdown the laptop.
Today, I tried again and this time it's at 1.17TiB and hung frozen at 19KiB/s with exactly 4:49:50 remaining. Kill -USR1 doesn't wake it up. Other terminal windows work fine and I ran top. No processes out of control, but the Wait parameter is steady between 70-90%. Forgot using a web browser. I was going to cut-paste some info, but typing lags by approximately 80-90 seconds before appearing on the screen. However, the Terminal works just fine. Nothing is logged in dmesg.
I have not tampered with anything and I have an operable term window. I want to understand where the problem is. These tools are as old as I am and cannot accept that there is a bug in them. Where do I look to find out where the issue is? This is not a code red emergency, but I'd rather not leave these disks powered for days at a time.
Thanks!
Tim
Bookmarks