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Auto Failover
Losing iSCSI connection during failover
  Symptom: I am testing iSCSI failover with Virtualiron. Virtualiron needs to assign iSCSI initiator port on the network node. Also, it needs iSCSI target's IP address. First, I entered DSS's virtual IP address in the target's address. At this configuration, whenever changeover happens,...
rating 18 Feb, 2009 Views: 5393
Why when failing over there is a Delayed Write Failed error with Windows that will lose some portion of data as well?
Problem: When failing over there is a Delayed Write Failed error with Windows or possibly other OS’s that will lose some portion of data as well.   Windows can produce an Event ID error 50.   Event Type:      Warning Event Source:   Ntfs Event...
rating 03 Mar, 2014 Views: 4181
Why my failback is not working although failover do??
Problem:   I configured my 2 DSS systems with Auto Failover. Everything thing is working fine but the failback. As it never worked before. It only works when I deactivated the failover and perform the failback on a physical IP address not the used Virtual IP Address.   Solution:  ...
rating 29 Sep, 2009 Views: 3139
How can we setup the primary node, restart the iSCSI Failover and make this node active again?
Symptom: Not only data but also the whole configuration of the primary node is lost because of e.g. a broken RAID controller. Problem: Currently it’s not possible to add a “clean” DSS node and automatically...
rating 14 Sep, 2011 Views: 5559
Failover events and Network component failure.
Failover events can occur for many reasons. Investigations into such events can be easy if the failure is localized to the DSSV6 server or operating system. When the failure is triggered by ping node failure or Network component failure, investigation may involve administrative testing of all...
rating 01 Jun, 2011 Views: 2672
Loosing connection to iSCSI target during Failover
If you have Microsoft hosts connected to DSS V6 with iSCSI Failover configuration and you loose the connection to the iSCSI target during a Failover, please modify the MaxRequestHoldTime in the Windows registry MaxRequestHoldTime. This can be located in:...
rating 15 Mar, 2013 Views: 3705
DSS V6: XFS UUID issue - can't see data on my shares
Problem: I've changed local volume to destination mode and can't see data on my shares.  What has happened? Solution: This could be caused because shares on your secondary systems are not mounting properly.  If you apply Small Update 1323 to your system, after reboot everything should...
rating 31 Jan, 2013 Views: 1151
DSS V7: One of the nodes failed in Active- Active configuration
If you have configured Active- Active failover with DSS V7 and one of your nodes has failed all your resources have been moved to the working one. In order to restore orginal configuration go to: Click Setup-> Failover-> Function: Resources Pool Manager-> move to local node on the...
rating 29 Jan, 2013 Views: 1985
DSS V6: Secondary/Passive node failure in failover
If your secondary/passive node has failed and you want to restore failover configuration go to Secondary/Passive SETUP-> network-> Failover-> Function: Failover Manager  and click Start If there are no other problems your failover should be running now.
rating 29 Jan, 2013 Views: 1621
How to replace malfunctioned unit in Active Passive configuration and minimize downtime
In order to replace malfunctioned node and configure new on with minimized downtime you should use MPIO on iSCSI initiator by adding another path pointing to physical IP of active node. Because of this if you disable failover , initiator will use physical IP address of storage to access the...
rating 24 Jan, 2013 Views: 1455

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