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MPIO
How-To's and Questions related to MPIO for use with iSCSI data transfer
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iSCSI connection problems in ESXi 5.0
Disable Interrupt Remapping in ESXi 5.0 If you're running ESXi 5.0 and DSS V6 build 5845 (version: 6.0up90.8101.5845) and you are experiencing issues with iSCSI connections and drop outs for short periods of time and the following alert appears in the vmkernel/messages log files: ALERT: APIC:...
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15 Mar, 2013
Views: 4956
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How to connect multiple initiators to a target?
In order to connect to the same target with multiple initiators at the same time, a cluster filesystem has to be used. Otherwise, the data may become corrupted. Here are some SAN cluster filesystems: MelioFS: http://www.sanbolic.com/melio.htm IBM: ...
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15 Mar, 2013
Views: 19165
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Multiple iSCSI connections
Symptom: My iSCSI targets report that I am having corruption Problem: With iSCSI you cannot have multiple connections to the same LUN, iSCSI Target works block based - not file based. Meaning that a changes made by one person is not seen by another person working on the same...
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27 Feb, 2012
Views: 9749
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Can I connect to Open-E iSCSI targets behind NAT?
To explain why iSCSI targets behind NAT can not be accessed by a initiator we have to explain how iSCSI connection works. It is a two-step connection. One step is discovering portal and second is actual log in. Even though iSCSI targets IPs can be translated via NAT and discovered, they send...
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25 Jul, 2011
Views: 3730
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How can we improve high latency links using MaxOutstandingR2T iSCSI parameter?
If you are experiencing high latency or decreased transfer rates between iSCSI initiators and targets, try to tune with the MaxOutstandingR2T iSCSI parameter. A detailed explanations about how this parameter works can be found under the following link: ...
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18 Apr, 2011
Views: 5268
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Open-E storage cannot pass Windows cluster Validation test
Symptom: Open-E storage cannot pass Windows cluster Validation test Problem: Errors when validating that storage supports the SCSI-3 Persistent Reservation commands The following errors appear on initiator site (Windows 2008 R2): Validating Cluster Disk 0 for Persistent Reservation...
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06 Apr, 2011
Views: 2711
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After update to DSS V6 build 4786 or to build 5087 with a Xen Citrix or Vmware ESXi Servers the iSCSI Targets are not recognized by IET standard
Problem: After update to DSS V6 build 4786 to build 5087with a Xen Citrix Server or VMware ESXi Servers the iSCSI Targets are not recognized by IET standard. Solution: 1. Power off the guest and/or Virtual Machines (Virtual Machine located on Open-E DSS IET iSCSI Target) and...
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14 Jan, 2011
Views: 2200
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How to recreate volume replication meta-data
Problem: I had modified my tasks and now would like to recreate the volume replication meta-data task. How this can be accomplished? Solution: In order to recreate the Volume Replication meta-data, access the GUI in the CONFIGURATION -> Volume Manager -> Vol. Replication ->...
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06 Jul, 2010
Views: 3805
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How can I connect to Hyper-V and Citrix XEN server?
Problem: I have Citrix Xenserver and would like to use Hyper-V with my Open-E DSS V6. But The XENserver is using IET, while the Hyper-V is using SCST for the ISCSI daemon. How can I use both machines? Can I use SCST and IET at the same time? Solution: IET and SCST can not be used...
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29 Apr, 2010
Views: 5661
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How to migrate my existing data to a new iSCSI volume
Problem: I have about 500 Users, and wants to know if there is any Migration Software Open-E recommends, so I can copy over my existing Server DATA (including permissions etx
) to the new Open-E iSCSI Server. Solution: In case of iSCSI migration you need too format the iSCSI volume...
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27 Apr, 2009
Views: 4063
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