Server Pool WITHOUT shared storage

The documentation defines Server Pool as:
+Logically an autonomous region that contains one or more physical Oracle VM Servers.+
Therefore, should it possible to add multiple servers (physically separate VM servers) to the same Server Pool even though they are NOT using shared storage? When I tried to add the second VM Server to the Server Pool I received the following error:
During adding servers ([vmoracle2]) to server pool (VM_Server_Pool), Cluster setup failed:
(OVM-1011 OVM Manager communication with vmoracle1 for operation HA Setup for Oracle VM
Agent 2.2.0 failed: <Exception: SR '/dev/sda3' not supported: type 'ocfs2.local' not in
['nfs', 'ocfs2.cluster']> )Thanks.

Nothing is as easy as it seems when it comes to Oracle VM.
When trying to create a new Server Pool to accommodate my second VM Server, I received the following error:
+2010-03-08 18:18:24.575 NOTIFICATION Getting agent version for agent:vmoracle2 ...+
+2010-03-08 18:18:24.752 NOTIFICATION The agent version is 2.3-19+
+2010-03-08 18:18:24.755 NOTIFICATION Checking agent vmoracle2 is active or not?+
+2010-03-08 18:18:24.916 NOTIFICATION [Server Pool Management][Server][vmoracle2]:Check agent (vmoracle2) connectivity.+
+2010-03-08 18:18:30.304 NOTIFICATION entering into assign vs action...+
+2010-03-08 18:18:30.311 NOTIFICATION Getting agent version for agent:vmoracle2 ...+
+2010-03-08 18:18:30.482 NOTIFICATION The agent version is 2.3-19+
+2010-03-08 18:18:30.483 NOTIFICATION Checking agent vmoracle2 is active or not?+
+2010-03-08 18:18:30.638 NOTIFICATION [Server Pool Management][Server][vmoracle2]:Check agent (vmoracle2) connectivity.+
+2010-03-08 18:18:45.236 NOTIFICATION Getting agent version for agent:vmoracle2 ...+
+2010-03-08 18:18:45.410 NOTIFICATION The agent version is 2.3-19+
+2010-03-08 18:18:45.434 NOTIFICATION master server is:vmoracle2+
+2010-03-08 18:18:45.435 NOTIFICATION Start to check cluster for server pool+
+2010-03-08 18:18:45.581 WARNING failed:<Exception: Cluster root not found.>+
StackTrace:
File "/opt/ovs-agent-2.3/OVSSiteCluster.py", line 535, in cluster_precheck
clusterprecheck(single_node, ha_enable)+
+File "/opt/ovs-agent-2.3/OVSSiteCluster.py", line 515, in clusterprecheck+
if not cluster_root_sr_uuid: raise Exception("Cluster root not found.")
+2010-03-08 18:18:45.582 NOTIFICATION Failed check cluster for server pool+
+2010-03-08 18:18:45.583 ERROR [Server Pool Management][Server Pool][VMORACLE2_Server_Pool]:Check prerequisites to create server pool (VMORACLE2_Server_Pool) failed: (OVM-1011 OVM Manager communication with vmoracle2 for operation Pre-check cluster root for Server Pool failed:+
+<Exception: Cluster root not found.>+
+)+
+2010-03-08 18:18:45.607 NOTIFICATION Exception Message:OVM-1011 OVM Manager communication with vmoracle2 for operation Pre-check cluster root for Server Pool failed:+
+<Exception: Cluster root not found.>+
The "*Test Connection*" succeeded just fine prior to clicking NEXT on the "Create Server Pool" page.
Any suggestions?

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Creating VMs on single DL360 server with no shared storage

Hi,
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Before I start I was trying to understand the online docs -
Can someone give me the benefit of their experiance and tell me if my following assumptions are true?
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Any help much appreciated!
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Trevor

858411 wrote:
1. I still need to create a server pool even though I will not be using any HA features.Correct. You would create a non-clustered server pool for the single server.
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Clustering without shared storage

Is there a way to cluster two Sun Fire 280R without a shared storage?

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OVM 3.0.3: Create new Server Pool but keep storage repositories?

Hi,
I think I have somewhat messed up my Server pool a bit, such as that there are some kind of network bridges in the server pool which I cannot get rid of, since OVMM insists that these have vnics associated to them, when none of my VMs had any nic configured.
So, I guess my only option is to re-create the server pool entirely and migrating VMs between server pools doesn't seem to be possible. I was wondering, I if could at least keep the storage repositories and get away with only creating a new server pool and adding the VM servers to the new pool, but keeping the VM files in the repositories. This will likely make this transition much more smooth, than having to copy all the VMs from the repositories onto a temporary storage and back into the new storage repositories.
Cheers,
budy

budachst wrote:
I think I have somewhat messed up my Server pool a bit, such as that there are some kind of network bridges in the server pool which I cannot get rid of, since OVMM insists that these have vnics associated to them, when none of my VMs had any nic configured.Usually this means you've imported templates or old VMs that still have those bridges configured. Check the network configuration of the templates installed into your repositories and change the bridges to real/proper ones. Once you've done that, you'll be able to delete the unusued bridges.
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Is it possible to install Oracle RAC without shared storage

Dear All,
I would like to seek for your advice.
I got two different servers. We call it node 1 and node 2. And two different instances name.
Node 1 -> instance name as "ORCL1"
Node 2 -> instance name as "ORCL2"
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you should review RAC concepts, and the meaning of instance and database
For the system we need Oracle RAC active-active cluster mode.RAC = single database with multiple instances all accessing the same shared storage, no replication involved
Our objective is to have 2 replicated databases, in other words we need 2 instances of the same database automatically replicated for 100% up time to the Application server.what you describe here is = multiple databases with multiple instances, replicated between each other
We have 2 separate database machines and 2 application server machines. We need our application server to connect to any of the databases at any point of time and be having a consistent data on both database machines. We only need the database to be in a cluster mode, we won't need the OS to be in a cluster. There is no shared storage in this case.no shared storage = no RAC
you will have two seperate databases synchronizing continuously
you can use for example Streams / Advanced Replication (with multi-master configuration)
if you dont insist on an active-active configuration, you can also use Data Guard for building a standby database

How can use all vcenter feature such as HA and drs without shared storage

Hi
i have 2 esxi host dl 380g8
but i don't have any shared storage or san now i want use vcenter feature like ha and drs now for use this features do i have to run VSAN?
i readed for for use vsan we have to buy ATLEAST ONE ssd disk is this trure?
ssd disk is necessary?
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Hi,
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File Server Failover Cluster without shared disks

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shared storage that the servers in the cluster can access directly. i do not have external storage and do not have budget for it.
Is it possible to implement some for of HA with windows server 2012 R2 file servers without shared storage? for example is it possible to cluster the servers and have data on one server mirrored real-time to the other server such that if one server goes
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i intend to use the storage to host VMs for Hyper V fail-over cluster and an SQL server cluster. they will access the shared on the file server through SMB
each file server also has 144GB SSD, how can i use it to improve performance?

i have two servers that i wish to cluster as my Hyper V hosts and also two file servers each with 10 4TB SATA disks, all i have read about implementing high availability at the storage level involves clustering the file servers (e.g SOFS) which require external
shared storage that the servers in the cluster can access directly. i do not have external storage and do not have budget for it.
Is it possible to implement some for of HA with windows server 2012 R2 file servers without shared storage? for example is it possible to cluster the servers and have data on one server mirrored real-time to the other server such that if one server goes
down, the other server will take over processing storage request using the mirrored data?
i intend to use the storage to host VMs for Hyper V fail-over cluster and an SQL server cluster. they will access the shared on the file server through SMB
each file server also has 144GB SSD, how can i use it to improve performance?
There are two ways for you to go:
1) Build a cluster w/o shared storage using MSFT upcoming version of Windows (yes, finally they have that feature and tons of other cool stuff). We've recently build both Scale-Out File Server serving Hyper-V cluster and standard general-purpose File Server
cluster with this version. I'll blog next week edited content (you can drop me a message to get drafts right now) or you can use Dave's blog who was the first one I know who build it and posted, see :
Windows Server Technical Preview (Storage Replica)
http://clusteringformeremortals.com
Feature you should be interested in it Storage Replica. Official guide is here:
Storage Replica Guide
http://blogs.technet.com/b/filecab/archive/2014/10/07/storage-replica-guide-released-for-windows-server-technical-preview.aspx
Will do things like on the picture below:
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even right away.
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log disks where SSD is assumed) you can get advanced stuff with a third-party software doing things similar to the picture below:
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For more details see:
StarWind Virtual SAN
http://www.starwindsoftware.com/starwind-virtual-san/
There are other guys who do similar things but as you want file server (no virtualization?) most of them who are Linux/FreeBSD/Solaris-based and VM-running are out and you need to check for native Windows implementations. Guess SteelEye DataKeeper (that's
Dave who blogged about Storage Replica File Server) and DataCore.
Good luck :)
StarWind VSAN [Virtual SAN] clusters Hyper-V without SAS, Fibre Channel, SMB 3.0 or iSCSI, uses Ethernet to mirror internally mounted SATA disks between hosts.

Moving Server Pool Storage/Image to another location

I have a server pool that is using an NFS mount as the 12G of cluster storage at 192.168.0.5. This server pool has 1 Oracle VM server with 2 VM guests that I simply can not loose.
I need to move that to NFS mount to another server at 192.168.0.31
I know I can simply create another server pool, but once I do that, I believe I need another Oracle VM server (which I do not have).
Or can you move the entire Oracle server along with the VMs to the other pool seemlessly?
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This is my environment right now.
One Physical Host with a 3 TB internal SATA drive. Oracle VM server 3.0.1 installed.
Another Host with RHEL 5.5 on it where I installed Oracle VM Manager 3.0, on this RHEL 5.5 host, I also created an NFS export (192.168.0.5 with about 30G possible of space).
Created a Server Pool with cluster storage of the NFS mount above.
Discovered the OVM Server, and added it to the Server pool.
Created a repository on the 3 TB drive in that server that was detected by OVM manager. Created a few virtual disks.
Created a few VNICs.
Created 2 virtual machines using 3 different virtual disks that are attached to the one VM server. All working as expected so far.
Now I want to move the NFS cluster storage to a new host. (192.168.0.31 - that does not get rebooted as much)
Created a new server pool using the new cluster storage.
I have taken down both VM guests, and migrated them to the "unassigned Virtual Machines" folder.
The large 3TB repo, I un-presented to the Oracle VM server.
I then tried to remove the VM server from the server pool, and receive this
warning icon
Job Construction Phase
begin()
com.oracle.ovm.mgr.api.exception.RuleException: OVMRU_000036E Cannot remove server: ovs1.advantagedata.com, from pool: ADI. There are still OCFS2 file systems: [fs_OVM_repo], in the pool
Tue Sep 27 10:22:48 EDT 2011
at com.oracle.ovm.mgr.rules.modules.api.virtual.ClusterRules.removeServerPre(ClusterRules.java:144)
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at com.oracle.ovm.mgr.api.job.JobEngine.invokeMethod(JobEngine.java:598)
at com.oracle.ovm.mgr.rules.RulesEngine.runRules(RulesEngine.java:184)
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at com.oracle.ovm.mgr.model.ModelEngine.preValidate(ModelEngine.java:513)
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Cannot Add Servers to server pool

Oracle VM 3.0.1
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when I try to add 2 Oracle VM servers to the server pool I get the following error message for both servers:
(Note I can add/remove servers from a different server pool without "activate cluster" checked)
any help much appreciated
Actioner
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I just resolved my issue.
On both of the servers that were having issues, I renamed the cluster.conf file, and then tried to add again...and it worked.
It seems that VM Manager was unable to update the existing cluster.conf file which had some old information in it...so I just had it create a new file.
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Shared Storage is not showing in SErver pool physical disk .

Hi i have added couple of images to give you exact picture what i am doing .. please have a look
OVM can see Shared storage from Openfiler
http://www.picpanda.com/viewer.php?file=u1pf8hre1oqufkx6vyr3.gif
OVM , SErver Pool (physical disk ) can see Shared Storage name
http://www.picpanda.com/viewer.php?file=0h2dn48x6gh5avr6fob.gif
OVM does not show the physical disk from Shared storage
http://www.picpanda.com/viewer.php?file=c3njd7bg4exyjpymsit.gif
if i remmeber, When i tryed with NFS share from openfiler, its worked before ... but this time i am trying with ISCSI target ..
thanks
is there any thing do i have to do to make it work ??

Fosiul wrote:
if i remmeber, When i tryed with NFS share from openfiler, its worked before ... but this time i am trying with ISCSI target ..
is there any thing do i have to do to make it work ??Check to see if the physical disk appears under the default volume group for your san. If not, refresh the san and wait until it does. Also, make sure you have an admin server configured for that san and that your Oracle VM servers are in the default access group.

Moving shared storage repository between server pools

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Exactly how are you trying to do this. Are you choosing to clone and then running the clone customizer to map your storage and vnics?

Disk replication for Shared Storage in Weblogic server

Hi,
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Thanks.

Hi,
I am not the middleware expert. However ACFS (Oracle Cloud File System) is a clustering filesystem, which also has the functionality for replication:
http://www.oracle.com/technetwork/database/index-100339.html
Maybe you also finde information on what you need on the MAA website: www.oracle.com/goto/maa
Regards
Sebastian

How to Create Shared Storage using VM-Server 2.1 Red Hat Enterprise Linux 5

Thanks in advance.
Describe in sequence how to create shared storage for a two guest/node Red Hat Linux Enterprise using Oracle 2.1 VM Server on Red Hat Linux Enterprise 5 using command line or appropriate interface.
How to create Shared Storage using Oracle 2.1 VM Server?
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Hi Suresh Kumar,
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I think it would be better if you get in touch with Oracle Support regarding this .
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I have a testing delima.. We have a block-storage SR that was in use on Server Pool A, but want to move it to Server Pool B. I dont see any way in the GUI to facilitate moving a SR (OCFS2) to a new Server pool.
I know I can probably destroy, delete, unpresent and rebuild an empty SR on the new server pool but I dont see why moving it wouldnt be an option
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Fetch shared storage usage info from windows server.

I am trying to retrieve usage related info of shared storage attached to a server by using:
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The output is fine. But here the Drive type for drive-D is showing as 3, though its a Netapp Lun. Please let me know how to get Lun information. Its becomes tough for me to identify a Netapp volume if it is showing Netapp as Drivetype 3.
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OUTPUT:
Node,Caption,DriveType,FreeSpace,Size
Hostname,C:,3,1522081792,20973137920
Hostname,D:,3,38534803456,751148986368
Hostname,E:,3,2867924992,52395274240
Hostname,F:,3,44005818368,73364254720
Hostname,R:,5,,

The link I gave you was not meant to be a exact copy/paste of what you should run, it was just so you could see that someone else managed to determine whether a particular volume was an iSCSI drive or not by using WMI to query the Win32_DiskDrive class and
look at the Model property.
In their case, as you can see from the link I posted (regardless of the language used), the Model property had a value of "iSCSI" when it was an iSCSI drive.
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