Crashplan JRE update needed

Just found your thread after a long time and a very large number of tabs trying to work out what happened to my NAS all of a sudden. I have exactly the same problem. 3.4GB in /usr/local/crashplan/upgrade from many directories of the form "1435726800440.1442908683198", all containing a copy of crashplan jars.

Thanks for your help, I'll hopefully put it to good use.

For anyone who thinks they may have the same problem, here's how I got this far:

Initial symptoms: NAS boots up and is visible through RAIDAR and FrontView. But all the shares can't be mounted from my Windows boxes, and trying to disable/re-enable CIFS is failing. After a while, SSH access stops working. Crashplan is complaining the backup hasn't run for a few days.

Step 1 - Enabling tech support mode

http://kb.netgear.com/app/answers/detail/a_id/21100

Step 2 - Logging in via telnet, search the web for the password, not sure if I should post it here or not.

Step 3 - Mounting os partition

https://community.netgear.com/t5/Using-your-ReadyNAS/Readynas-NV-V1-Mounting-OS-partition-in-support-mode/td-p/894479

# start_raid.sh

# mount /dev/md0 /sysroot

Step 4 - Check OS partition disk usage

# df
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 10240 0 10240 0% /dev
/dev/md0 4184756 4184628 0 100% /sysroot

Step 5 - Identify usage under /sysroot

search for disk usage by directory, filter for entries in the Gigabytes (or anything with G in it - I'm not a linux ninja)

# du -ch | grep G

...

3.0G ./usr/local/crashplan/upgrade
3.4G ./usr/local/crashplan
3.4G ./usr/local

# cd usr/local/crashplan/upgrade
# ls
1430802000433.1441892511941 1435726800440.1442892937381 1435726800440.1442938901933 1435726800440.1442984305410
1430802000433.jar 1435726800440.1442894986800 1435726800440.1442940789145 1435726800440.1442986202689
...

Step 6 - Delete most of these folders

From here on my plan is to follow Stephen's advice.