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DPM 2010 / Equallogic / CSV

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Hi

Backup server, 2008R2 (dell r510) with DPM2010. Attached to dell MD1000 storage for disk2disk backup. also connected 2 dell TL2000 libraries

2x Dell r810, 2008R2 in failover cluster. CSV is hosted on group of 2 dell equallogic iscsi storage (ps5000 and ps6000). For virtualisation we use ofcourse hyper-v.  I can backup the  vm's running on cluster by just installing the dpm agent on the server running on vm. . But DPM can also see the cluster and I can select the vm's  directly in dpm, so called backup using child partition snapshot.

I want that because of licensing issues. When I deploy dpm agent to each vm, it will cost me many standard/enterprise licenses. When I use the direct vm backup (so child partition snapshot) it will only cost me 2 enterprise licenses..   But it's not working. I can select the child part.snaps.  but backup/sync is failing with followiing error:

Failure occurred while adding one or more of the volumes involved in backup operation to snapshot set. Please check the event log on SCVMM Chaplin Resources.gogh.trust.local to troubleshoot the issue. (ID 30290 Details: Internal error code: 0x80990A00)

In eventvwr of host where vm is running on, I see following:

iSCSI discovery via SendTargets failed with error code 0xefff0024 to target portal *10.0.130.200 0003260 B06BDRV\L4SC&PCI_163914E4&SUBSYS_02D41028&REV_20\5&104380db&0&30050200_0 .
source: msiscsi
event id: 113


Login request failed. The login response packet is given in the dump data.
Source: iscsiprt
Event id: 10


Error 0x80070490 opening SNMP connection to \\.\PHYSICALDRIVE2 (0-8a0906-c8d9a8502-19e000023504c5fd).
Source: equallogic
Event id: 4002



Any suggestions ?
thx

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