Node failure vs. IO outage
Posted: Sun Sep 15, 2013 4:45 pm
Dear Support!
I did some tests and examined the failover sequence when I am using 2 node Active-Active StarWind Cluster on Windows2012. The Initiator (2008R2, I need to use that) is using the MS Initiator and MPIO, so the Initiator picked up from both nodes the iSCSI targets.
The test was very simple, I just pulled out the power cable from one of the nodes. After that the Initiator stopped the IO traffic for 30s and after that started to work again.
But when I booted up the "failed" node, the IO stopped again but for 60s!
The first outage I think normal because the iSCSI path have to be failed, but the second outage (which took 2 times longer) when the second node booted up is strange for me.
Could you help me what did I wrong? I don't think this is a normal behavior.
Thanks!
Best Regards
Sanyi
I did some tests and examined the failover sequence when I am using 2 node Active-Active StarWind Cluster on Windows2012. The Initiator (2008R2, I need to use that) is using the MS Initiator and MPIO, so the Initiator picked up from both nodes the iSCSI targets.
The test was very simple, I just pulled out the power cable from one of the nodes. After that the Initiator stopped the IO traffic for 30s and after that started to work again.
But when I booted up the "failed" node, the IO stopped again but for 60s!
The first outage I think normal because the iSCSI path have to be failed, but the second outage (which took 2 times longer) when the second node booted up is strange for me.
Could you help me what did I wrong? I don't think this is a normal behavior.
Thanks!
Best Regards
Sanyi