Oracle VM (OVM) (MOSC)

MOSC Banner

OCFS2 - Global heartbeat - Timeouts

edited Apr 8, 2021 3:43PM in Oracle VM (OVM) (MOSC) Question

Hi,

In the context of OVM 3.4.6 / multipath iSCSI / OCFS2

We had storage array problem that lasted 20 minutes. The storage array restarted entirely.

That storage array hosts 2 iSCSI repositories and the iSCSI poolFs file system for 6 hypervisors.

We had the good surprise that all hypervisors waited (for 20 minutes !!!) and restored iSCSI connexion gracefully. Almost all VMs survived that long disk I/O pause.

I had the experience that a 2 minutes outage would make hypervisor to fence and reboot.

Where does such good resilience comes from ?


For what it worths, please find below our modifications done to iSCSI.conf and multipath.conf

Howdy, Stranger!

Log In

To view full details, sign in to My Oracle Support Community.

Register

Don't have a My Oracle Support Community account? Click here to get started.

Category Leaderboard

Top contributors this month

Instructions for posting

×

1. Select a discussion category from the picklist.


2. Enter a title that clearly identifies the subject of your question.


3. In the body, insert detailed information, including Oracle product and version.


Please abide by the Oracle Community guidelines and refrain from posting any customer or personally identifiable information (PI/CI).


Cloud / Fusion customers - Our Cloud community has moved! Please go to Cloud Customer Connect .


New to My Oracle Support Community? Visit our Welcome Center

MOSC Help Center