hello, I have running a ceph cluster(RBD) on production environment to host 200 VMs, Under normal circumstances, ceph's performance is quite good. but when I delete a snapshot or image, ceph cluster will be appear ?a lot of blocked requests(generally morn than 1000?), then , the whole cluster have slow down, many VMs are very slow, any idea ? than you the hardware of my cluster---------------------------------- my cluster have 3 nodes,every node have 2TB sata * 10 and 120G SSD * 1 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140804/6fe40f25/attachment.htm>