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RAID Volume Full - INPUT/OUTPUT Errors on File Commands Via SSH (ReadyNAS NV+ 1GB RAM)
Last night I SSH'd into my NV+ and wanted to clean up the boot volume, as it was 89% full and I had been experiencing issues with the unit booting up completely. I reviewed /var/logs to look for large log files to delete. The upnp-av.log and another upnp-av.log.old showed as:
>> -rw-r--r-- 1 root root 651204166 Mar 12 2018 upnp-av.log
>> -rw-r--r-- 1 root root 1226915 Jan 10 2014 upnp-av.log.old
I removed the .old file and for some dumb reason I wanted to copy the larger upnp-av.log file over to my RAID volume just for safe keeping, so without much thought I copied upnp-av.log over this file to /dev/c/c/. As soon as I did that my RAID volume went from 64% to 100% full (see df -h below). Now when I attempt to CD into any of directories or try to remove a directory I receive an INPUT/OUTPUT error at the command line and am unable to remove any files or directories. I realize now that there's no reason I should have attempted to backup that file. In fact I can't even find upnp-av.log in /dev/c/c/ or /c. Looking for some ideas on how I can go about removing/cleaning up that RAID volume via SSH. The boot volume is now nice and clean but I can't acccess my RAID volume shares via CIFS and feel like I'm stuck doing anything via SSH because of the INPUT/OUTPUT errors I'm receiving when performing any file/directory rm commands. I'm at work and don't have access to my system info, but I have 4.1.16 (?) FW, 1GB RAM and 4x1.8 TB drives (all healthy) in the NV+. I can post that info later this evening. Any help or ideas would be appreciated. Thanks.
Filesystem Size Used Avail Use% Mounted on
/dev/hdc1 1.9G 1.8G 223M 89% /
tmpfs 16k 0 16k 0% /USB
/dev/c/c 5.4T 3.5T 1.9T 64% /c
/c/home 5.4T 3.5T 1.9T 64% /home/ftp/homes
/c/backup 5.4T 3.5T 1.9T 64% /home/ftp/backup
/c/media 5.4T 3.5T 1.9T 64% /home/ftp/media
/c/software 5.4T 3.5T 1.9T 64% /home/ftp/software
nas:/var/log# cp upnp-av.log /dev/c/c
nas:/var/log# rm upnp-av.log
nas:/var/log# ls -l /dev/c/c
lrwxrwxrwx 1 root root 15 Jan 16 02:01 /dev/c/c -> /dev/mapper/c-c
nas:/var/log# cd /dev/c/c
-bash: cd: /dev/c/c: Not a directory
nas:/var/log# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/hdc1 1.9G 1.2G 844M 58% /
tmpfs 16k 0 16k 0% /USB
/dev/c/c 16T 14T 0 100% /c
/c/home 16T 14T 0 100% /home/ftp/homes
/c/backup 16T 14T 0 100% /home/ftp/backup
/c/media 16T 14T 0 100% /home/ftp/media
/c/software 16T 14T 0 100% /home/ftp/software
I have some additional information from the putty session at home that shows the INPUT/OUTPUT errors I can post them later this evening if that would also help.
Thanks for any assistance.
-Brian
bjrupert@gmail.com
5 Replies
Replies have been turned off for this discussion
What do you see when you enter
# ls -al /dev/mapper/c-c
Stephen,
Thanks for the quick response, when I get home this afternoon and have access to the shell I'll post the results.
-BJr
Hi Stephen,
Here is the result of ls -al /dev/mapper/c-c
Linux nas 2.6.17.14ReadyNAS #1 Wed Jun 20 20:08:20 PDT 2012 padre unknown
nas:~# ls -al /dev/mapper/c-c
brw-rw---- 1 root disk 254, 0 Jan 16 02:16 /dev/mapper/c-c
nas:~#Also, here is the result of doing a cd into /c/media directory:
nas:/c/home# cd /c/media
-bash: cd: /c/media: Input/output error
nas:/c/home#Same error happens on all directories and files.
Thanks,
-BJr
Well, you shouldn't have done this:
nas:/var/log# cp upnp-av.log /dev/c/c
since /dev/c/c isn't a mounted file system and neither is /dev/mapper/c-c (which is what /dev/c/c links to).
I don't know exactly what that cp command did, since the link (and /dev/mapper/c-c) both appear ok in ls. So I don't know how to recover from the mis-step.
You could try rebooting the NAS (and maybe doing an OS reinstall) - it's possible that will resolve it.
Do you have a backup of your data? The direct solution is to do a factory reset, rebuild the NAS and restore data from the backup.
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