Category Archives: Ceph

Resetting an existing BlueStore OSD

Posted on April 8, 2018 by j mozdzen

During an attempt to migrate some OSDs’ BlueStore RocksDB to a different block device, we noticed (previously undetected) fatal read errors on the existing RocksDB. The only way to recover from this situation is to remove the OSD and rebuild … Continue reading →

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OpenStack: How to enable live-migration on KVM

Posted on October 26, 2017 by ebl

For quite some time I had live-migration on my mind but never really had the time to dig into this deep enough to get it working. But a couple of weeks ago this topic came up again, we were planning … Continue reading →

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Ceph: How to enable nova live snapshots on Xen hypervisor

Posted on January 26, 2017 by ebl

Currently, our company is in the middle of a migration process, trying to move our existing virtual machines into our private OpenStack cloud (Mitaka). Some of them will be moved, others will be re-installed. One of the major issues we … Continue reading →

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