| Summary: | [Doc RFE] Document Block Device Mirroring in Block Device Guide | ||
|---|---|---|---|
| Product: | Red Hat Ceph Storage | Reporter: | Anjana Suparna Sriram <asriram> |
| Component: | Documentation | Assignee: | Bara Ancincova <bancinco> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Hemanth Kumar <hyelloji> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 2.0 | CC: | hnallurv, kdreyer, ngoswami, nlevine |
| Target Milestone: | rc | Keywords: | Documentation, FutureFeature |
| Target Release: | 2.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Enhancement | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-09-30 17:22:10 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
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Description
Anjana Suparna Sriram
2016-03-29 10:49:22 UTC
Following are my observations while verifying the doc, Please modify the doc as mentioned below.. In the Configure Mirroring Section : https://access.qa.redhat.com/documentation/en/red-hat-ceph-storage/2/block-device-guide/#configuring_mirroring 1. => One block device client is connected to each of the clusters: client.master and client.slave. For information on installing Ceph clients, see the Client Installation chapter in the Installation Guide for Red Hat Enterprise Linux. -- the keyring should be in the format "master.client.master.keyring" - with only client.master and client.slave rbd fails with cephx authentication. We need to create a new cephx authentication. 2. => On both client hosts, install the rbd-mirror package: # yum install rbd-mirror -- We have to install "ceph-common" and also copy the admin keyring to the Client host. Please mention about that. Update the same for Image configuration also 3. => Add the clusters as peers: $ rbd mirror pool peer add data client.slave@slave --cluster master $ rbd mirror pool peer add data client.master@master --cluster slave -- This section should be moved after enabling the pool mirroring This fails as the pool needs to be enabled first. Steps 4 & 5 should to be interchanged both in Pool and Image configurations. 4. => Configuring Image Mirroring On both client hosts, enable and start the rbd-mirror daemon: -- Add one more command to make the daemon start by itself after rebooting # systemctl enable ceph-rbd-mirror.target = > The stack pool on the master cluster contains the image1 and image2. Journaling is enabled on the images. See Enabling Journaling for details. -- The name of the pool mentioned in prereq is "stack" but the syntax and examples contains pool name as "data". Looks good to me.. Moving to Verified state. |