We will be purging 550TB of recently deleted data from the cluster during this maintenance window. Volume vacuuming is usually done at regular intervals and has no impact on Sonic performance, but due to the large amount of data that needs to be removed we have decided to lock the cluster and execute the vacuuming manually. We expect this to cause temporary performance degradation in reads and writes from/to Sonic. Cached content on our network edge will not be affected. During the lock all read and write operations will still be possible, but newly uploaded content will not be erasure coded until we release the lock. Please note that durability SLA will not be applied to these files, until the locks are removed and initial EC operation completes. We advise customers to keep local copies of the content uploaded during this maintenance window until this maintenance window is closed and erasure coding is re-enabled. Thank you for your understanding.
