Sounds like your hard drive or the controller are having issues‎.
 By any chance is/var‎ on sda. XFSdump keeps a catalog in /var/lib/xfs which is used for incremental backups.
I know this because about 3 or 4 years ago I had to file a bug ticket with Red Hat for RHEL 6 about improper selinux contexts on that directory.


  Original Message  
From: ToddAndMargo
Sent: Saturday, May 14, 2016 20:37
To: [log in to unmask]
Subject: What is this xfadump error?

Hi All,

$ rpm -qa \*xfsdump\*
xfsdump-3.1.4-1.el7.x86_64

What is the meaning of this xfsdump error. There is
no /dev/sda on this system at the moment.

# /usr/sbin/xfsdump -v verbose -M 1 -L 1 -l 0 -f 
/lin-bak/2016-05-14_15-49-55_homeXfsDump /home

/usr/sbin/xfsdump: dumping non-directory files
WARNING: Your hard drive is failing
Device: /dev/sda [SAT], unable to open device
/usr/sbin/xfsdump: ending media file
/usr/sbin/xfsdump: media file size 453262590208 bytes
/usr/sbin/xfsdump: dump size (non-dir files) : 453181559704 bytes
/usr/sbin/xfsdump: dump complete: 5404 seconds elapsed
/usr/sbin/xfsdump: Dump Summary:
/usr/sbin/xfsdump: stream 0 /lin-bak/2016-05-14_15-49-55_homeXfsDump 
OK (success)
/usr/sbin/xfsdump: Dump Status: SUCCESS


And it succeeded!

/home is on /dev/sdb3
/lin-bak is /dev/sdc1

Really!

# fdisk -l /dev/sda
fdisk: cannot open /dev/sda: No such file or directory

Any idea?

Many thanks,
-T


-- 
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Computers are like air conditioners.
They malfunction when you open windows
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