Device selection for HA cluster root ip

Hi all,
Several times I had (and still have) problems, that the cluster root ip in a ha-enviroment is bounded to the loopback interface (lo) as lo:0 instead to xenbr0 (as xenbr0:0)
Does anyone know where and how this interface selection takes place?
Reg,
Rene

ReneV wrote:
Several times I had (and still have) problems, that the cluster root ip in a ha-enviroment is bounded to the loopback interface (lo) as lo:0 instead to xenbr0 (as xenbr0:0)
Does anyone know where and how this interface selection takes place?Can you open an Oracle SR for this? I've seen this too, but haven't been in a position to log an SR/bug about it. I believe the ovs-agent developers are aware of it, but the more SRs that are opened, the quicker we'll see a new version of the agent. :)

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SPAD: Device type to be selected for 'HP Laser Jet P2055dn'

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It says I'm in the audio group. Here's the permission on the audio devices:
crw-rw----+ 1 root audio 116, 6 Jun 12 03:45 controlC0
crw-rw----+ 1 root audio 116, 9 Jun 12 03:45 controlC1
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ReneV wrote:
Several times I had (and still have) problems, that the cluster root ip in a ha-enviroment is bounded to the loopback interface (lo) as lo:0 instead to xenbr0 (as xenbr0:0)
Does anyone know where and how this interface selection takes place?Can you open an Oracle SR for this? I've seen this too, but haven't been in a position to log an SR/bug about it. I believe the ovs-agent developers are aware of it, but the more SRs that are opened, the quicker we'll see a new version of the agent. :)

Is it possible for a cluster to be set to allow variable data input?

I posted this question at the bottom of a different thread but it looks like that one has died out plus this is really a separate question. So I hope no one minds me starting a new thread here.
I made the program Convert2Matfile.vi which I intend to use as a SubVI in other programs. How I want this program to work is I would like to bundle up double any quantity of 1D/ 2D arrays and or numeric values and pass them to this tool which will then convert what ever it is sent to an appropriate variable in a matlab file using the element name as the matlab variable name.
The issue I am having here, is that currently I have a 1D, 2D and a numeric value sitting in the cluster definition on my front panel of the Convert2Matlfile.vi. Because I have this, the code is looking for every cluster to be structured exactally like the one I have in the front panel. How do I source that code more generically? See the photo below of the broken wire. Error message is as follows;
You have connected two arrays of different dimensions.
The dimension of input cluster -> array #2 is 1.
The dimension of Cluster In -> array 2 is 2.
So clearly it is looking for the Cluster to be exactally like the one it is looking for. Is there any way to do this more generically so it can accept any type of cluster of any quantity of values so long as they meet my criteria?
Attachments:
conv2mat.vi ‏49 KB
Convert2Matfile.vi ‏58 KB
Conv2Matlab Cluster Issue.png ‏33 KB

Well it looks like I will likely need to treat this as a variant. Unfortunatley for me I hate dealing with Variants in LabVIEW likely more as a result as a lack of understanding when it comes to how to deal with them than anything. My stratedgy I would think should be as follows figure out how many items are in my variant that are either a numeric, a 1D or a 2D array. Then one by one go to each of those values. If say it is a numeric get the numerical value, get the label name and send it over to my convert to Matlab program one by one.
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http://zone.ni.com/reference/en-XX/help/371361J-01/lvhowto/retrievingattribsfromvard/
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Wire variant data to the variantinput of the Get Variant Attribute function.
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Right-click the names output and select Create»Indicatorfrom the shortcut menu.
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Run the VI.
Even after following the instructions above nothing shows up in either the names or values collumn. So how the heck do I actually do what I want to do? I just can't seem to figure out how to index through a variant at all.
Attachments:
exploreVariant.vi ‏10 KB
variantcode.png ‏35 KB
VariantFrontPanel.png ‏73 KB

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Hyper-V cluster Backup causes virtual machine reboots for common Cluster Shared Volumes members.

I am having a problem where my VMs are rebooting while other VMs that share the same CSV are being backed up. I have provided all the information that I have gather to this point below. If I have missed anything, please let me know.
My HyperV Cluster configuration:
5 Node Cluster running 2008R2 Core DataCenter w/SP1. All updates as released by WSUS that will install on a Core installation
Each Node has 8 NICs configured as follows:
NIC1 - Management/Campus access (26.x VLAN)
NIC2 - iSCSI dedicated (22.x VLAN)
NIC3 - Live Migration (28.x VLAN)
NIC4 - Heartbeat (20.x VLAN)
NIC5 - VSwitch (26.x VLAN)
NIC6 - VSwitch (18.x VLAN)
NIC7 - VSwitch (27.x VLAN)
NIC8 - VSwitch (22.x VLAN)
Following hotfixes additional installed by MS guidance (either while build or when troubleshooting stability issue in Jan 2013)
KB2531907 - Was installed during original building of cluster
KB2705759 - Installed during troubleshooting in early Jan2013
KB2684681 - Installed during troubleshooting in early Jan2013
KB2685891 - Installed during troubleshooting in early Jan2013
KB2639032 - Installed during troubleshooting in early Jan2013
Original cluster build was two hosts with quorum drive. Initial two hosts were HST1 and HST5
Next host added was HST3, then HST6 and finally HST2.
NOTE: HST4 hardware was used in different project and HST6 will eventually become HST4
Validation of cluster comes with warning for following things:
Updates inconsistent across hosts
  I have tried to manually install "missing" updates and they were not applicable
  Most likely cause is different build times for each machine in cluster
   HST1 and HST5 are both the same level because they were built at same time
   HST3 was not rebuilt from scratch due to time constraints and it actually goes back to Pre-SP1 and has a larger list of updates that others are lacking and hence the inconsistency
   HST6 was built from scratch but has more updates missing than 1 or 5 (10 missing instead of 7)
   HST2 was most recently built and it has the most missing updates (15)
Storage - List Potential Cluster Disks
  It says there are Persistent Reservations on all 14 of my CSV volumes and thinks they are from another cluster.
  They are removed from the validation set for this reason. These iSCSI volumes/disks were all created new for
  this cluster and have never been a part of any other cluster.
When I run the Cluster Validation wizard, I get a slew of Event ID 5120 from FailoverClustering. Wording of error:
  Cluster Shared Volume 'Volume12' ('Cluster Disk 13') is no longer available on this node because of
  'STATUS_MEDIA_WRITE_PROTECTED(c00000a2)'. All I/O will temporarily be queued until a path to the
  volume is reestablished.
Under Storage and Cluster Shared VOlumes in Failover Cluster Manager, all disks show online and there is no negative effect of the errors.
Cluster Shared Volumes
We have 14 CSVs that are all iSCSI attached to all 5 hosts. They are housed on an HP P4500G2 (LeftHand) SAN.
I have limited the number of VMs to no more than 7 per CSV as per best practices documentation from HP/Lefthand
VMs in each CSV are spread out amonst all 5 hosts (as you would expect)
Backup software we use is BackupChain from BackupChain.com.
Problem we are having:
When backup kicks off for a VM, all VMs on same CSV reboot without warning. This normally happens within seconds of the backup starting
What have to done to troubleshoot this:
We have tried rebalancing our backups
  Originally, I had backup jobs scheduled to kick off on Friday or Saturday evening after 9pm
  2 or 3 hosts would be backing up VMs (Serially; one VM per host at a time) each night.
  I changed my backup scheduled so that of my 90 VMs, only one per CSV is backing up at the same time
   I mapped out my Hosts and CSVs and scheduled my backups to run on week nights where each night, there
   is only one VM backed up per CSV. All VMs can be backed up over 5 nights (there are some VMs that don't
   get backed up). I also staggered the start times for each Host so that only one Host would be starting
   in the same timeframe. There was some overlap for Hosts that had backups that ran longer than 1 hour.
  Testing this new schedule did not fix my problem. It only made it more clear. As each backup timeframe
  started, whichever CSV the first VM to start was on would have all of their VMs reboot and come back up.
I then thought maybe I was overloading the network still so I decided to disable all of the scheduled backup
and run it manually. Kicking off a backup on a single VM, in most cases, will cause the reboot of common
CSV members.
Ok, maybe there is something wrong with my backup software.
  Downloaded a Demo of Veeam and installed it onto my cluster.
  Did a test backup of one VM and I had not problems.
  Did a test backup of a second VM and I had the same problem. All VMs on same CSV rebooted
Ok, it is not my backup software. Apparently it is VSS. I have looked through various websites. The best troubleshooting
site I have found for VSS in one place it on BackupChain.com (http://backupchain.com/hyper-v-backup/Troubleshooting.html)
I have tested almost every process on there list and I will lay out results below:
  1. I have rebooted HST6 and problems still persist
  2. When I run VSSADMIN delete shadows /all, I have no shadows to delete on any of my 5 nodes
   When I run VSSADMIN list writers, I have no error messages on any writers on any node...
  3. When I check the listed registry key, I only have the build in MS VSS writer listed (I am using software VSS)
  4. When I run VSSADMIN Resize ShadowStorge command, there is no shadow storage on any node
  5. I have completed the registration and service cycling on HST6 as laid out here and most of the stuff "errors"
   Only a few of the DLL's actually register.
  6. HyperV Integration Services were reconciled when I worked with MS in early January and I have no indication of
   further issue here.
  7. I did not complete the step to delete the Subscriptions because, again, I have no error messages when I list writers
  8. I removed the Veeam software that I had installed to test (it hadn't added any VSS Writer anyway though)
  9. I can't realistically uninstall my HyperV and test VSS
  10. Already have latest SPs and Updates
  11. This is part of step 5 so I already did this. This seems to be a rehash of various other stratgies
I have used the VSS Troubleshooter that is part of BackupChain (Ctrl-T) and I get the following error:
  ERROR: Selected writer 'Microsoft Hyper-V VSS Writer' is in failed state!
  - Status: 8 (VSS_WS_FAILED_AT_PREPARE_SNAPSHOT)
  - Writer Failure code: 0x800423f0 (<Unknown error code>)
  - Writer ID: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de}
  - Instance ID: {d55b6934-1c8d-46ab-a43f-4f997f18dc71}
  VSS snapshot creation failed with result: 8000FFFF
VSS errors in event viewer. Below are representative errors I have received from various Nodes of my cluster:
I have various of the below spread out over all hosts except for HST6
Source: VolSnap, Event ID 10, The shadow copy of volume took too long to install
Source: VolSnap, Event ID 16, The shadow copies of volume x were aborted because volume y, which contains shadow copy storage for this shadow copy, wa force dismounted.
Source: VolSnap, Event ID 27, The shadow copies of volume x were aborted during detection because a critical control file could not be opened.
I only have one instance of each of these and both of the below are from HST3
Source: VSS, Event ID 12293, Volume Shadow Copy Service error: Error calling a routine on a Shadow Copy Provider {b5946137-7b9f-4925-af80-51abd60b20d5}. Routine details RevertToSnashot [hr = 0x80042302, A Volume Shadow Copy Service component encountered an
unexpected error.
Source: VSS, Event ID 8193, Volume Shadow Copy Service error: Unexpected error calling routine GetOverlappedResult. hr = 0x80070057, The parameter is incorrect.
So, basically, everything I have tried has resulted in no success towards solving this problem.
I would appreciate anything assistance that can be provided.
Thanks,
Charles J. Palmer
Wright Flood

Tim,
Thanks for the reply. I ran the first two commands and got this:
Name
Role Metric
Cluster Network 1
3  10000
Cluster Network 2 - HeartBeat                              1   1300
Cluster Network 3 - iSCSI                                    0  10100
Cluster Network 4 - LiveMigration                         1   1200
When you look at the properties of each network, this is how I have it configured:
Cluster Network 1 - Allow cluster network communications on this network and Allow clients to connect through this network (26.x subnet)
Cluster Network 2 - Allow cluster network communications on this network. New network added while working with Microsoft support last month. (28.x subnet)
Cluster Network 3 - Do not allow cluster network communications on this network. (22.x subnet)
Cluster Network 4 - Allow cluster network communications on this network. Existing but not configured to be used by VMs for Live Migration until MS corrected. (20.x subnet)
Should I modify my metrics further or are the current values sufficient.
I worked with an MS support rep because my cluster (once I added the 5th host) stopped being able to live migrate VMs and I had VMs host jumping on startup. It was a mess for a couple of days. They had me add the Heartbeat network as part of the solution
to my problem. There doesn't seem to be anywhere to configure a network specifically for CSV so I would assume it would use (based on my metrics above) Cluster Network 4 and then Cluster Network 2 for CSV communications and would fail back to the Cluster Network
1 if both 2 and 4 were down/inaccessible.
As to the iSCSI getting a second NIC, I would love to but management wants separation of our VMs by subnet and role and hence why I need the 4 VSwitch NICs. I would have to look at adding an additional quad port NIC to my servers and I would be having to
use half height cards for 2 of my 5 servers for that to work.
But, on that note, it doesn't appear to actually be a bandwidth issue. I can run a backup for a single VM and get nothing on the network card (It caused the reboots before any real data has even started to pass apparently) and still the problem occurs.
As to Backup Chain, I have been working with the vendor and they are telling my the issue is with VSS. They also say they support CSV as well. If you go to this page (http://backupchain.com/Hyper-V-Backup-Software.html)
they say they support CSVs. Their tech support has been very helpful but unfortunately, nothing has fixed the problem.
What is annoying is that every backup doesn't cause a problem. I have a daily backup of one of our machines that runs fine without initiating any additional reboots. But most every other backup job will trigger the VMs on the common CSV to reboot.
I understood about the updates but I had to "prove" it to the MS tech I was on the phone with and hence I brought it up. I understand on the storage as well. Why give a warning for something that is working though... I think that is just a poor indicator
that it doesn't explain that in the report.
At a loss for what else I can do,
Charles J. Palmer

Sound device selection

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Hi,
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I need to know the device context for the printer that a user has
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I have this issue at this moment...
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Frankly, I haven't try it. Hope this help.
Best Regards,
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hi experts,
I have a report which picks data from bseg (cluster table ) for a month report it is taking around 4 minutes to process.I feel it is not good when take the report after some months.
how to select data from these table???how to declare itab for these cluster tables????can we include any search condition or any other kind of internal table???
please advice.
mani

Hi Manikandan,
The following code may be helpful to understand how to select the data from cluster table.
Types: Begin of ty_kna1,
Kunnr type kna1-kunnr,
adrnr type kna1-adrnr,
end of ty_kna1,
begin of ty_bseg,
belnr type bseg-belnr,
kunnr type bseg-kunnr,
end of ty_bseg,
begin of ty_final,
belnr type bseg-belnr,
kunnr type kna1-kunnr,
adrnr type kna1-adrnr,
end of ty_final.
Data: it_kna1 type table of ty_kna1,
wa_kna1 type ty_kna1,
it_bseg type table of ty_bseg,
wa_bseg type ty_bseg,
it_final type table of ty_final,
wa_final type ty_final.
Select kunnr adrnr from kna1 into table it_kna1 where....
if sy-subrc = 0.
select belnr kunnr into table it_bseg for all entries in it_kna1 where kunnr = it_kna1-kunnr.
endif.
sort it_kna1 by kunnr.
Loop at it_bseg into wa_bseg.
move wa_bseg-belnr to wa_final-belnr.
read table it_kna1 into wa_kna1 with kunnr = wa_bseg-kunnr binary search.
if sy-subrc = 0.
move: wa_kna1-kunnr to wa_final-kunnr,
wa_kna1-belnr to wa_final-belnr.
endif.
append wa_final to it_final.
clear wa_final.
endloop.
Loop at it_final into wa_final.
write: / wa_final-belnr, wa_final-kunnr, wa_final-adrnr.
endloop.
Reward if useful.
Thankyou,
Regards.

Device selection for HA cluster root ip

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