Web5.9. Ceph block device layering. Ceph supports the ability to create many copy-on-write (COW) or copy-on-read (COR) clones of a block device snapshot. Snapshot layering enables Ceph block device clients to create images very quickly. For example, you might create a block device image with a Linux VM written to it. WebClone a parent rbd snapshot into a COW sparse child. Parameters. p_ioctx – the parent context that represents the parent snap. ... Creates a new RBD mirroring bootstrap token for an external cluster. Parameters. ioctx (rados.Ioctx) – determines which RADOS pool is written. Returns.
rbd-mirror: snapshot mirror mode #30548 - Github
WebJan 26, 2024 · The steps are pretty straight forward. - Create rbd image of 500G on the primary - Enable rbd-mirror snapshot on the image - Map the image on the primary - Format the block device with ext4 - Mount it and write out 200-300G worth of data (I am using rsync with some local real data we have) - Unmap the image from the primary - Create rdb … WebThe users are not allowed to create non-primary snapshots (except the demote request). Those are created by rbd-mirror when copying data. At the moment when a secondary snapshot is created the rbd-mirror knows the snap_id of the remote (primary) snapshot, and could record it in the namespace to store the reference. high pressure fault heat pump
pcuzner/rbd-mirror-stats - Github
WebFeb 27, 2024 · Checklist References tracker ticket Updates documentation if necessary Includes tests for new functionality or reproducer for bug Show available Jenkins commands jenkins retest this please ... Webrbd-mirror Daemon¶. The two rbd-mirror daemons are responsible for watching image … Webroot@site-a $ rbd mirror snapshot schedule status It can take a few moments for the newly created schedule to show up! Journal based mirror. To enable journal based mirroring for an image, run the command with the `journal` mode. For example: root@site-a $ rbd mirror image enable rbd/vm-100-disk-0 journal how many bodies are in lake mead