This Question is Possibly Answered

1 "correct" answer available (10 pts) 2 "helpful" answers available (5 pts)
395 Views 10 Replies Last post: Nov 9, 2009 9:47 PM by tapesh RSS
nayes NetApp Employee Enthusiast 14 posts since
Aug 26, 2008
Currently Being Moderated

Nov 6, 2009 2:23 PM

SD6.2 with pass through FCP RDM LUN in vShere4

Hello All,

 

We are trying to use SnapDrive 6.2 to create a RDM LUN within a Windows2003 guest VM within Vsphere4. I have looked through the IAG and I can't seem to find out how to accomplish this. As we go through the process, everything is working as normal except when we go to add an initiator. There are no initiators in the guest OS so it will not allow us to move past this point..

 

Is there a way that you make the HBA's from the ESX server show up as a device within the Guest OS? I am definitely missing something...

 

Thanks,
Chris

ianaforbes Master 103 posts since
Aug 12, 2008
Currently Being Moderated
Nov 6, 2009 2:41 PM in response to: nayes
Re: SD6.2 with pass through FCP RDM LUN in vShere4

Install Snap drive with all necessary Fixes. (Windows Fixes, Network Card Driver, LSI Logic Driver)
On the Netapp Filer make the Volumes.
Make as well the LUNs (it has to be Windows) on the Netapp Filer and map it (remeber the LUN ID).
Change back to the VC and add the LUNs as RAW Disk Mapping (Take the same LUN IDs). This has to be done within the properties of the vm (Add disk wizard)
Start up the Machine. Go to the Computer Management and then go to Disk Management. If you see the Disk initialize them and format them. If not make a rescan. (Menu Action)
Open Snap Drive
Now you should see the LUNs, manageable by snapdrive.

ianaforbes Master 103 posts since
Aug 12, 2008
Currently Being Moderated
Nov 6, 2009 3:10 PM in response to: nayes
Re: SD6.2 with pass through FCP RDM LUN in vShere4

Make sure to create the RDM LUN as type Windows - the filer owns the filesystem on the RDM. Unless things have changed since 6.0, if you want to use snapdrive within a VM and utilize your FC HBA connections you have to follow the steps I outlined. Maybe 6.2 changes that - I don't know I'm afraid. If you plan on using iSCSI as your protocol then yes, you create the LUN with snapdrive.

ianaforbes Master 103 posts since
Aug 12, 2008
Currently Being Moderated
Nov 6, 2009 3:11 PM in response to: ianaforbes
Re: SD6.2 with pass through FCP RDM LUN in vShere4

Sorry, I meant to say that Windows owns the filesystem of the RDM.

jferry NetApp Employee 1 posts since
Mar 23, 2009
Currently Being Moderated
Nov 6, 2009 4:49 PM in response to: nayes
Re: SD6.2 with pass through FCP RDM LUN in vShere4

That is usually the result of not having the LSI drivers present. Seen commonly wit a P2V guest.

- - - - - - - - - - - - - - - - - - - - - - - - -

Please excuse typographic errors.

This message was sent via Blackberry device.

leemikes@msn.com Novice 2 posts since
May 18, 2009
Currently Being Moderated
Nov 8, 2009 8:23 PM in response to: jferry
Re: SD6.2 with pass through FCP RDM LUN in vShere4

Thanks!  We now have this working with Exchange running on ESX VMs in a CCR configuration.  There's a couple of oddities, however they are not show-stoppers.  One item of note: Occassionally when the VM reboots, SnapDrive loses visibility of the RDM LUNs, however the guest OS still sees/can access them. So far the work-around is simply to stop/restart the SD6.2 services (both of them).  I suspect it's a timing issue as SD has to authenticate with the filer and the vCenter Server (which in turn needs to talk to the right ESX host) or at least with the ESX host directly (depending on how it's setup).  Any thoughts on how to fix the 'disappearing LUNS from SnapDrive on a VM' problem (besides our stop/restart SD services work-around as above)?

satishv NetApp Employee Enthusiast 37 posts since
Apr 2, 2009
Currently Being Moderated
Nov 8, 2009 9:43 PM in response to: leemikes@msn.com
Re: SD6.2 with pass through FCP RDM LUN in vShere4

This issue has been fixed. It was observed during a hard reboot of the VM. Is this the case in your setup as well?

 

Thanks,

~Satish

leemikes@msn.com Novice 2 posts since
May 18, 2009
Currently Being Moderated
Nov 9, 2009 9:30 AM in response to: satishv
Re: SD6.2 with pass through FCP RDM LUN in vShere4

Dear Satish,

 

Thanks! We were using SD 6.2 from mid-OCT, so it may have been an earlier build that exhibited this bug even when doing soft (clean OS shutdown/restarts) reboots.  We did not try a hard power-off reboot.

tapesh NetApp Employee Novice 7 posts since
Apr 17, 2008
Currently Being Moderated
Nov 9, 2009 9:47 PM in response to: leemikes@msn.com
Re: SD6.2 with pass through FCP RDM LUN in vShere4

This issue got fixed on 26-OCT, Please take any build after that. Please let us know if you still see the issue.

 

Thanks,

Tapesh.

More Like This

  • Retrieving data ...

Bookmarked By (0)