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LUN value via iSCSI (server manager)


tswalker
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I've been using iSCSI to backup some of my VMs and I have a question regarding the LUN values that can be applied via Server Manager.
 
I have a VM which uses 5 drives...  and I have setup 5 iSCSI targets for each.  I left the LUN settings as default (0) for them and am wondering if I should have configured them to use different LUNs for each (e.g.:  0-4, or 1,2,3..)
 
They are all mapped at the same time via my script, and after backups, they're suppose to be disconnected.  However, I've noticed sometimes that they are not disconnecting via my script and what may be a correlating event happening:
(note, this log is from the system mapping the target)

Log Name: System
Source: iScsiPrt
Date: 10/21/2016 7:24:23 PM
Event ID: 52
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: Centurion.LAB.local
Description:
Initiator Service failed to respond in time to a request to configure IPSec resources for an iSCSI connection.
Event Xml:
Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"
System
Provider Name="iScsiPrt" /
EventID Qualifiers="49152"52/EventID
Level2/Level
Task0/Task
Keywords0x80000000000000/Keywords
TimeCreated SystemTime="2016-10-22T00:24:23.410211800Z" /
EventRecordID207998/EventRecordID
ChannelSystem/Channel
ComputerCenturion.LAB.local/Computer
Security /
/System
EventData
Data\Device\RaidPort2/Data
Binary000001000100000000000000340000C00000000000000000000000000000000000000000000000000A/Binary
/EventData
/Event

 

 

Is it possible that this is due to multiple targets being mapped with the same LUN id provided by the iSCSI target server?

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