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214 Posts
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2291
January 13th, 2012 14:00
Replication Manager VNXe iscsi replication and mounts on windows 2003
Hi,
I am configuring this currently and have a question about how long this should take.
I am just testing with a couple of small LUNs with one empty exchange 2007 storage group.
The production and mount hosts are both the same - windows 2003.
It takes at least 10 minutes to finish the job without mounts. However many times you run the job.
With mounts it takes another 20 minutes. The consistency check takes just a few seconds.
Are these timings normal?
Comments welcome.
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smarti2
214 Posts
0
January 25th, 2012 14:00
An update. It seems there are bugs with RM 5.4.1 and 5.4.0 around iscsi replication on VNXe. I am working with EMC trying to resolve these issues.
Clustor
57 Posts
0
March 14th, 2012 04:00
smarti, any update on these issues?
smarti2
214 Posts
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March 14th, 2012 08:00
Clustor, Yes EMC have released some hot fixes which addressed my issues with iscsi replication on VNXe with RM 5.4.0 and 5.4.1. One fixes an issue with deleted replication jobs not cleaning up properly and one fixed a problem with exchange replicas taking a long time on the second and subsequent runs. All to do with it getting confused about which replication IP address it was supposed to be using. The mount part still seems to take about 5 minutes but this I am told is normal as it rescans for each LUN one at a time before mounting. In addition it seemed that the second hotfix broke the first hot fix and now I have a third hot fix which combines the two. Seems like there was a lack of testing of iscsi with VNXe in certain configurations which hopefully now EMC are resolving. I still see Snaps in VNXe Unisphere GUI which have been deleted in RM but I am told this is cosmetic and will be fixed in MR2 of VNXe code. I have raised my observations and concerns with EMC UK and have been told that this has been relayed back to VNXe product manager but I never heard anything back. The support guys in Ireland did a good job of helping me resolve the issues but this whole process didn't look good to my customer who was expecting this to work first time out of the box. I am very surprised that other customers have not found similar iscsi replication issues as the VNXe has been out now for over a year. Have you got issues?
Clustor
57 Posts
0
March 14th, 2012 08:00
Yes i've got some issues myself , read about them here:
https://community.emc.com/message/598580#598580
It seems you've gotten alot further though. I cannot get a job created currently.
I'm on 2.1.3.16008 (2.1 Service Pack 3.1) with the VNXe systems.
bergec
275 Posts
0
March 14th, 2012 09:00
You will probably need the additional hotfixes that Smarti mentioned
Open a case with support
Claude