$ echo 32768 > /sys/block/md2/md/stripe_cache_size # This is actually the max price, and it's going to take up 32Mib to synchronize read/create operations when the array is degraded Do you think you're snug with undertaking command line operations? You might open up a terminal window into the Synology device http://elliotlicwp.articlesblogger.com/16560294/the-2-minute-rule-for-synology-empty-recycle-bin