Sometimes we have to survive power loss, node loss, or any kind of hard drive (be it HDD, SSD, NVMe) … Read More “Ceph disaster: lost disks, files, pool damaged (inactive/down pgs)”
Ceph can issue many health messages and one of these messages is “daemons have recently crashed”. If this error is … Read More “Ceph: Daemons have recently crashed”
What is Ceph? Ceph is a software-defined storage solution designed to address the object, block, and file storage needs for … Read More “Upgrade Ceph from Nautilus to Octopus (CentOS 7)”
We maintain an HDFS distributed file system that handles large data sets running on commodity hardware. Our Hadoop is spread … Read More “Why do we move from HDFS to Ceph?”