We have recently upgraded a bunch of EX4200 switches to Junos 15.1R5.5. Everything is working fine but we’ve made a couple of observations.
First, the root (/) partition is getting quite low on free space:
% df -h Filesystem Size Used Avail Capacity Mounted on /dev/da0s1a 183M 156M 12M 93% /
Perhaps there is a way to free up some space. I haven’t really investigated this much further, but runnning "request system storage cleanup" makes no difference.
On our EX4200 switches still running 12.3R12.4, we’re seeing around 77% used on /.
Also, something has changed in the snapshot process. On 15.1, when I take a snapshot I get the following message:
admin@switch> request system snapshot slice alternate System may go unstable if module traces or syslog mesages are enabled during snapshot. It is recommended to disable all debug logging. Do you wish to continue? [yes,no] (no)
I haven’t seen this message before. Also, the word ”mesages” is misspelled, so I guess this is something new. Anyway, I have never had a system go ”unstable” during the snapshot process. Syslog is configured on all our switches, so maybe I should be a bit more careful with snapshots?