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Bug #74210

open

stretch cluster support in nvmeof

Added by Leonid Chernin 3 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
% Done:

0%

Source:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Tags (freeform):

Description

The NVMe-oF GWs are currently unaware of the data center location. When all of the GWs in the group are collocated in the same location, there is no issue. But if GWs (within the same GW group) are located in different locations within the same Ceph cluster, the failover target might be wrong. Choosing the wrong failover target will bring into a situation where the compute is on one site but storage is on another site. This is causing a significant impact to the I/O performance.
Also when disaster cluster recovered failback of ANA groups to it should be done only by monitor command

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