Comment 14 for bug 1429794

Thank to Mykola Golub for a clarification: "In the provided example https://bugs.launchpad.net/fuel/+bug/1429794/comments/6 ceph reported:
 gmap v28: 1728 pgs: 89 inactive, 288 peering, 1351 active+clean; 0 bytes data, 12543 MB used, 283 GB / 296 GB avail
i.e. not ALL pgs were in active+clean state, only 1351 from 1728, and 89 were inactive and 288 peering. In this state requests that read/write data mapped to the pgs in not active state are blocked or failed."