On 03/06/2018 01:17 PM, Lazuardi Nasution wrote:
> Hi,
> I want to do load balanced multipathing (multiple iSCSI gateway/exporter
> nodes) of iSCSI backed with RBD images. Should I disable exclusive lock
> feature? What if I don't disable that feature? I'm using TGT (manual
> way) since I get so many CPU stuck error messages when I was using LIO.

You are using LIO/TGT with krbd right?

You cannot or shouldn't do active/active multipathing. If you have the
lock enabled then it bounces between paths for each IO and will be slow.
If you do not have it enabled then you can end up with stale IO
overwriting current data.

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