If the Elastic “feels” the disk to be to full, it will block new writes. Also, you have one unassigned shard. This should fix as there is more space available.
hi @spdpl
You should have some more free disk space. This can happen
a) by increasing the size of the disk, or
b) get rid of some old logs.
If you choose b) you can rotate your index sets, the oldest will be deleted and you will have some space again. This will be only a short therm fix, as you have insufficient diskspace for your amount of logs. You can also change your data retention to a shorter period and thus reduce the time you keep the logs.