Hyper-V High Availability / Server Reboots

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Similar Messages

High Availability Server in Unix Environment - Checking

Hi experts - I would like to know, how to check in any SAP - CI server is configured for High availablity option ?
I have Unix-Solaris installed in my work. Is there any Unix command would show this has HA options?
Would appreciate your help.
Thanks,
Raj

Hi Raj,
Try to execute the command cmviewcl -v at the OS level and as root user.
You will be shown the cluster package available and the node in which the cluster runs, if any.
Regards,
Varadhu

What is HADR SEEDING TEST database in High availability server?

Hi All,
Our servers belongs to HA. Now, we could see a db like "HADR SEEDING TEST" has been created in our server.We don't know when was it created. How is it getting created and
what is it? Will it make any error if we drop this db?
Thanks,
Julie

I could find an answer for this question.
The db "HADR Seeding Test " will get created when creating an Availability Group in SQL Server 2012 using the New Availability Group Wizard in SQL Server
Management Studio.
Please refer the below link
https://www.sqlskills.com/blogs/jonathan/the-availability-group-wizard-and-the-hadr-seeding-test-database/
Thanks,
Julie

Unable to connect copied vhd files to VM Hyper-v high availability cluster.

Hi
I have my VMs VHD files stored on my SAN and I have a copied one of the LUNs containing a vhd file which I have then exported to the shared storage of the hyper-V cluster which is just like and other VHD. The problem comes when trying to connect this
copied vhd to the VM which still uses the original VHD . The system refuses reporting that it cannot add the same disk twice..
These are two different VHD files
I have: renamed the new file, changed the disk ID, changed the volume id and using vbox (because it was the only way I could find do it ) changed the uuid of the vhd file. But still no joy.
I can connect the volume to any other VM without any issues, but I need to be able to connect it to the same VM..
I'm not sure how Hyper-v is comparing the two VHD files but I need to know so I can I can connect the copy VHD without having to copy all its contents to a new VHD which is impractical..
Anyone got any ideas or a procedure??
windows 2008 R2 cluster with 3par SAN as storage.
Peter

Hi perter,
Please try to refer to the following items :
1. create a folder in the LUN , then copy the problematic VHD into it ,attach the copied VHD to original VM.
2. copy the problematic VHD file to another volume ,then attach it to original VM again .
Best Regards
Elton Ji
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Hyper-V 2012 High Availability using Windows Server 2012 File Server Storage

Hi Guys,
Need your expertise regarding hyper-v high availability. We setup 2 hyper-v 2012 host in our infra for our domain consolidation project. Unfortunately, we don't have hardware storage that is said to be a requirement that we can use to create a failover cluster
for hyper-v host to implement HA. Here's the setup:
Host1
HP Proliant L380 G7
Windows Server 2012 Std
Hyper-V role, Failover Cluster Manager and File and Storage Services installed
Host2
Dell PowerEdge 2950
Windows Server 2012 Std
Hyper-V role, Failover Cluster Manager and File and Storage Services installed
Storage
Dell PowerEdge 6800
Windows Server 2012 Std
File and Storage Services installed
I'm able to configure the new feature about Shared Nothing Live Migration - i'm able to move VM's back and fort between my hosts without storage. But this is planned and proactive approach. My concern is to have my hyper-v host to become highly available in
the event of system failure. If my host1 dies, the VMs should go/move to host2 and vice versa. In setting this up, i believe i need to enable the failover clustering between my hyper-v hosts which i already did but upon validation, it says "No disks
were found on which to perform cluster validation tests." Is it possible to cluster it using just a regular windows file server? I've read about SMB 3.0 and i've configured it as well i'm able to save VMs on my file server, but i don't think that my hyper-v
hosts are already highly available.
Any feedback and suggestions or recommendation is highly appreciated. Thanks in advance!

Hi Guys,
Need your expertise regarding hyper-v high availability. We setup 2 hyper-v 2012 host in our infra for our domain consolidation project. Unfortunately, we don't have hardware storage that is said to be a requirement that we can use to create a failover cluster
for hyper-v host to implement HA. Here's the setup:
Host1
HP Proliant L380 G7
Windows Server 2012 Std
Hyper-V role, Failover Cluster Manager and File and Storage Services installed
Host2
Dell PowerEdge 2950
Windows Server 2012 Std
Hyper-V role, Failover Cluster Manager and File and Storage Services installed
Storage
Dell PowerEdge 6800
Windows Server 2012 Std
File and Storage Services installed
I'm able to configure the new feature about Shared Nothing Live Migration - i'm able to move VM's back and fort between my hosts without storage. But this is planned and proactive approach. My concern is to have my hyper-v host to become highly available in
the event of system failure. If my host1 dies, the VMs should go/move to host2 and vice versa. In setting this up, i believe i need to enable the failover clustering between my hyper-v hosts which i already did but upon validation, it says "No disks were
found on which to perform cluster validation tests." Is it possible to cluster it using just a regular windows file server? I've read about SMB 3.0 and i've configured it as well i'm able to save VMs on my file server, but i don't think that my hyper-v hosts
are already highly available.
Any feedback and suggestions or recommendation is highly appreciated. Thanks in advance!
Your shared storage is a single point of failure with this scenario so I would not consider the whole setup as a production configuration... Also setup is both slow (all I/O is travelling down the wire to storage server, running VMs from DAS is ages faster)
and expensive (third server + extra Windows license). I would think twice about what you do and either deploy a built-in VM replication technologies (Hyper-V Replica) and apps built-in clustering features that does not require shared storage (SQL Server and
Database Mirroring for example, BTW what workload do you run?) or use some third-party software creating fault tolerant shared storage from DAS or investing into physical shared storage hardware (HA one of course).
Hi VR38DETT,
Thanks for responding. The hosts will cater a domain controller (on each host), Web filtering software (Websense), Anti-Virus (McAfee ePO), WSUS and an Auditserver as of the moment. Is the Hyper-V Replica somewhat give "high availability" to VMs or Hyper-V
hosts? Also, is the cluster required in order to implement it? Haven't tried that but worth a try.

High availability for file server and exchange with 2 physical servers

Dear Experts,
I have 2 physical server with local disks only. I want to setup below on same with high availability, please advise best prossible options. We will be using windows 2012 R2 Server..
1. Domain controller
2. Exchange 2013
As of now I am thinking of setting up below:
1. Install Hyper-v on both and create 3 VM on each as
-On Host A- 1 VM for DC, 1 VM for File server with DFS namespace and replication for file server HA and 1 VM for Exchange 2013 with CAS/MBX with DAG and DNS RR for Exchange HA
-On Host B - 1 VM for ADC, 1 VM for File server DFS member for above and 1 VM for Exchange 2013 CAS/MBX with DAG member
I have read on internet about new features called scale out file server (SoFS) in Windows 2012 Server but not sure that will be preferred for file sharing.
Any advise will be highly appreciated..
Thanks for the help in advance..
Best regards,

Dear Experts,
I have 2 physical server with local disks only. I want to setup below on same with high availability, please advise best prossible options. We will be using windows 2012 R2 Server..
1. Domain controller
2. Exchange 2013
As of now I am thinking of setting up below:
1. Install Hyper-v on both and create 3 VM on each as
-On Host A- 1 VM for DC, 1 VM for File server with DFS namespace and replication for file server HA and 1 VM for Exchange 2013 with CAS/MBX with DAG and DNS RR for Exchange HA
-On Host B - 1 VM for ADC, 1 VM for File server DFS member for above and 1 VM for Exchange 2013 CAS/MBX with DAG member
I have read on internet about new features called scale out file server (SoFS) in Windows 2012 Server but not sure that will be preferred for file sharing.
Any advise will be highly appreciated..
Thanks for the help in advance..
Best regards,
DFS is by far the best way to implement any sort of file server. Because a) failover is not fully transparent and does not happen always (say not on copy ) b) DFS cannot replicate open files so if you edit a big file and have node rebooted you're going to
lose ALL transactions/updates you've applied c) actually slows down the config. See:
DFS for failover
http://help.globalscape.com/help/wafs3/using_microsoft_dfs_for_failover.htm
DFS FAQ
http://technet.microsoft.com/library/cc773238(WS.10).aspx
(check "open files" point here)
DFS Performance
http://blogs.technet.com/b/filecab/archive/2009/08/22/windows-server-dfs-namespaces-performance-and-scalability.aspx
SoFS a) requires shared storage to run and you don't have one b) does not support generic workloads
(only Hyper-V and SQL Server) and c) technically makes sense to expand SAS JBOD or existing FC SAN to numerous Hyper-V clients over 10 GbE w/o need to invest money into SAS switches and HBAs and FC HBAs and new licenses FC ports. Making long story short:
SoFS is NOT YOUR CASE.
SoFS Overview
http://technet.microsoft.com/en-us/library/hh831349.aspx
http://www.aidanfinn.com/?p=12786
http://www.aidanfinn.com/?p=12786
For now you need to find some shared storage to be a back end for your hypevisor config (SAS JBOD from supported list, virtual SAN from multiple vendors like for example StarWind see below, make sure you review ALL the vendors) and then you create a failover
SMB 3.0 share for your file server workload. See:
Clustered Storage Spaces over SAS JBOD
http://technet.microsoft.com/en-us/library/jj822937.aspx
Virtual SAN from inexpensive SATA and no SAS or FC
http://www.starwindsoftware.com/native-san-for-hyper-v-free-edition
Failover
SMB File Server in Windows Server 2012 R2
http://www.starwindsoftware.com/configuring-ha-file-server-on-windows-server-2012-for-smb-nas
Fault
tolerant file server on just a pair of nodes
http://www.starwindsoftware.com/ns-configuring-ha-file-server-for-smb-nas
For Exchange you use SMB share from above for a file share witness and use DAG. See:
Exchange DAG
Good luck! Hope this helped :)
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.

2012 R2 - Clustering High Availability File Server

Hi All
What's the difference between creating a High Availability Virtual Machine to use as a File Server and creating a 'File Server for general use' in the High Availability Wizard?
Thanks in advance.

Hi All
What's the difference between creating a High Availability Virtual Machine to use as a File Server and creating a 'File Server for general use' in the High Availability Wizard?
Thanks in advance.
What's your goal? If you want to have file server with no service interruption then you need generic SMB file server built on top of a guest VM cluster. HA VM is not going to work for you (service interruption) and SoFS is not going to work for you (workload
different from SQL Server and / or Hyper-V is not supported). So... Tell what do you want to do and not what you're doing now :)
For a fault-tolerant file server scenarios see following links (make sure you replace StarWind with your shared storage specific, I'd suggest to use shared VHDX). See:
http://technet.microsoft.com/en-us/library/cc731844(v=ws.10).aspx
http://technet.microsoft.com/en-us/library/cc753969.aspx
http://social.technet.microsoft.com/Forums/en-US/bc4a1d88-116c-4f2b-9fda-9470abe873fa/fail-over-clustering-file-servers
http://www.starwindsoftware.com/configuring-ha-file-server-on-windows-server-2012-for-smb-nas
http://www.starwindsoftware.com/configuring-ha-file-server-for-smb-nas
Hope this helped :)
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.
The goal is a file server that's as resilient as possible. I need to still use DFS namespace though. Its on a Dell VRTX server with built-in shared storage.
I'm having issues getting the High Availability wizard for General Purpose File Server to see local drives :(
So I'm just trying to understand the key differences between creating one of these and a hyper-v server with file services installed.

How to enable high availability on SQL Server 2005 with Windows Server 2008 Enterprise R2

Dear Folks,
I would like to ask you about this thing. I'm working for IT department for bank in Myanmar. Our bank have up to 96 branches across all of Myanmar including H.O. We are using Microsoft SQL Server 2005 with Windows Server 2008 for our banking
information system. My main problem is having to backup and restore the database backup files every time the servers in branches goes down for whatever reasons. I want to deploy this feature of high availability and failover cluster using Windows Server 2008
and SQL Server 2005. Our branches have 2 Servers. One is for Primary and other is for Backup. What I want to do is that, I want to change Backup Server to Primary Server whenever the Primary Server goes down for whatever reasons. All the working data and databases
from Primary will immediately replicated into Backup Server along with all the IP information of Primary Server. Please give me step by step guide for this process.

Try below
http://blogs.msdn.com/b/cindygross/archive/2009/10/23/checklist-for-installing-sql-server-2005-as-a-clustered-instance.aspx
I will recommend you to upgrade SQL server to newer version for support as well as flexibility.
Regards,
Vishal Patel
Blog: http://vspatel.co.uk
Site: http://lehrity.com

URL to be used in high availability for Directory Server

Hi All,
I have an environment configured for high availability. I have two OVD and OID servers each in this environment, configured in high availability. What should be the value in the Server URL field of the Directory Server IT Resource in the OIM for this environment? In the normal environment, I had it as "ldap://ovdhost01:6501" and it was working fine. But since there are two servers here, I am not sure what URL to use in place of this. The entry for the two ovd hosts in the OHS is "idstore.com" which is configured on 6501 port. But I tried using the following URLs and none of them worked:
1. idstore.com
2. ldap://idstore.com
3. ldap://idstore.com:6501
4. ldap://ovdhost01:6501,ldap://ovdhost01:6501
Can someone help me know the correct URL to be used in this case?
Thanks,
$id

Not sure about OVD or OID but for SOA and OIM:
SOA:
XMLConfig -> XMLConfig.SOAConfig -> SOAConfig
Rmiurl -> t3://soahost1:soaport1,soahost2:soaport2
Soapurl -> Load balancer or web server url (without the /workflow context)
OIM:
XMLConfig -> XMLConfig.DiscoveryConfig -> Discovery
OimFrontEndUrl -> Load balance or web server url (without the /oim context)
And ofcourse on your LB or WebServer, you need to configure these:
SOA: http://docs.oracle.com/cd/E23943_01/core.1111/e10106/ha_soa.htm#CHDDJEGD
OIM: http://docs.oracle.com/cd/E21764_01/core.1111/e10106/imha.htm#BGBDFEIE
-Bikash

Transaction Log Truncate not working on Sql Server 2012 High Availability Groups

Hi Everyone
Firstly I have tried to search the forum for similar issues but can't seem to find any that match our situation.
We have a SQL Server 2012 High Availability Group with 2 Nodes
Node 1 = Primary
Node 2 = Secondary
Backup Schedule as follows
Full Database Backup @ 00:00
Transaction Log Backup every 30 minutes from 00:30:00 till 23:59:59.
These backups are run by Maintenance Jobs, but we have also tried doing direct backups in SSMS using Backup Database and Backup Log commands.
Before we configured the High Availability group the transaction log backups worked fine.
After we configured the High Availability group we performed a Full Backup and the T-Log schedule did the T-Log backup. The 1st T-log backup truncated the log (Used space Decreased) as expected.
However subsequent T-Log backups do not truncate the T-Log.
This happens both in our acceptance and Live environments. This also happens when running the backups as a Backup operator and sysadmin, this does not seem to be a permissions issue at all.
We have tried running the Backup on the Primary and Secondary Replica.
What about High Availability groups could stop Transaction Log Backups from not truncating the log?
Thanks
James

Hi Sean
Thank you for your reply, please see the output of the sys.databases query below, and some others which you may find usefull.
Query: select database_id,recovery_model_desc, log_reuse_wait, log_reuse_wait_desc from sys.databases
where database_id = 5
Result: database_id   recovery_model_desc   log_reuse_wait   log_reuse_wait_desc
                 5
FULL   0
NOTHING
I also ran the following
select database_id, truncation_lsn, last_received_lsn, last_commit_lsn, last_hardened_lsn, last_redone_lsn,*
from sys.dm_hadr_database_replica_states
go
database_id
truncation_lsn
last_received_lsn
last_commit_lsn
last_hardened_lsn
last_redone_lsn
database_id
group_id
replica_id
group_database_id
is_local
synchronization_state
synchronization_state_desc
is_commit_participant
synchronization_health
synchronization_health_desc
database_state
database_state_desc
is_suspended
suspend_reason
suspend_reason_desc
recovery_lsn
truncation_lsn
last_sent_lsn
last_sent_time
last_received_lsn
last_received_time
last_hardened_lsn
last_hardened_time
last_redone_lsn
last_redone_time
log_send_queue_size
log_send_rate
redo_queue_size
redo_rate
filestream_send_rate
end_of_log_lsn
last_commit_lsn
last_commit_time
low_water_mark_for_ghosts
5
1231833000417170000000
1231833000418880000000
1231833000418880000000
1231833000418890000000
1231833000418880000000
5
1391A499-3F9A-47D5-BCE0-70BC204E2A5B
7E8BFC2E-363F-4C48-86F0-C276D3E0C8D9
0581E17A-6B7B-4B8F-9288-BF765BFBCE77
0
2
SYNCHRONIZED
1
2
HEALTHY
NULL
NULL
0
NULL
NULL
4294967295429490000000000
1231833000417170000000
1
41863
1231833000418880000000
41863
1231833000418890000000
41863
1231833000418880000000
41863
0
25541
0
84404
75304
1231833000418880000000
1231833000418880000000
41863
441019861
5
1231833000417170000000
NULL
1231833000418880000000
1231833000418890000000
NULL
5
1391A499-3F9A-47D5-BCE0-70BC204E2A5B
83B9F00E-D63F-4AC0-98FC-35E48FFA2C6F
0581E17A-6B7B-4B8F-9288-BF765BFBCE77
1
2
SYNCHRONIZED
1
2
HEALTHY
0
ONLINE
0
NULL
NULL
4294967295429490000000000
1231833000417170000000
NULL
NULL
NULL
NULL
1231833000418890000000
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
1231833000418880000000
1231833000418880000000
41863
441019861
And
dbcc loginfo
go
RecoveryUnitId
FileId
FileSize
StartOffset
FSeqNo
Status
Parity
CreateLSN
0
2
458752
8192
1231828
0
128
0
0
2
458752
466944
1231829
0
128
0
0
2
458752
925696
1231830
0
128
0
0
2
712704
1384448
1231831
0
128
0
0
2
19398656
2097152
1231832
0
128
1229654000000040000000
0
2
10199171072
21495808
1231833
2
128
1229656000000010000000
0
2
10199171072
10220666880
0
0
64
1229656000000010000000
0
2
10199171072
20419837952
1231827
0
64
1229656000000010000000
0
2
10199171072
30619009024
0
0
128
1229656000000010000000
0
2
10199171072
40818180096
0
0
128
1229656000000010000000
0
2
10199171072
51017351168
0
0
128
1229656000000010000000
0
2
10199171072
61216522240
0
0
128
1229656000000010000000
0
2
10199171072
71415693312
0
0
128
1229656000000010000000
0
2
10199171072
81614864384
0
0
128
1229656000000010000000
0
2
536870912
91814035456
0
0
64
1229989001661260000000
0
2
536870912
92350906368
0
0
64
1229989001661260000000
0
2
536870912
92887777280
0
0
64
1229989001661260000000
0
2
536870912
93424648192
0
0
64
1229989001661260000000
0
2
536870912
93961519104
0
0
64
1229989001661260000000
0
2
536870912
94498390016
0
0
64
1229989001661260000000
0
2
536870912
95035260928
0
0
64
1229989001661260000000
0
2
536870912
95572131840
0
0
64
1229989001661260000000
0
2
536870912
96109002752
0
0
64
1229989001661260000000
0
2
536870912
96645873664
0
0
64
1229989001661260000000
0
2
536870912
97182744576
0
0
64
1229989001661260000000
0
2
536870912
97719615488
0
0
64
1229989001661260000000
0
2
536870912
98256486400
0
0
64
1229989001661260000000
0
2
536870912
98793357312
0
0
64
1229989001661260000000
0
2
536870912
99330228224
0
0
64
1229989001661260000000
0
2
536870912
99867099136
0
0
64
1229989001661260000000
0
2
536870912
100403970048
0
0
64
1229995000058520000000
0
2
536870912
100940840960
0
0
64
1229995000058520000000
0
2
536870912
101477711872
0
0
64
1229995000058520000000
0
2
536870912
102014582784
0
0
64
1229995000058520000000
0
2
536870912
102551453696
0
0
64
1229995000058520000000
0
2
536870912
103088324608
0
0
64
1229995000058520000000
0
2
536870912
103625195520
0
0
64
1229995000058520000000
0
2
536870912
104162066432
0
0
64
1229995000058520000000
0
2
536870912
104698937344
0
0
64
1229995000058520000000
0
2
536870912
105235808256
0
0
64
1229995000058520000000
0
2
536870912
105772679168
0
0
64
1229995000058520000000
0
2
536870912
106309550080
0
0
64
1229995000058520000000
0
2
536870912
106846420992
0
0
64
1229995000058520000000
0
2
536870912
107383291904
0
0
64
1229995000058520000000
0
2
536870912
107920162816
0
0
64
1229995000058520000000
0
2
536870912
108457033728
0
0
64
1229995000058520000000
0
2
536870912
108993904640
0
0
64
1230004000028400000000
0
2
536870912
109530775552
0
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64
1230004000028400000000
0
2
536870912
110067646464
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64
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536870912
110604517376
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64
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536870912
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536870912
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64
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536870912
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1230004000028400000000
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2
536870912
112752001024
0
0
64
1230004000028400000000
0
2
536870912
113288871936
0
0
64
1230004000028400000000
0
2
536870912
113825742848
0
0
64
1230004000028400000000
0
2
536870912
114362613760
0
0
64
1230004000028400000000
0
2
536870912
114899484672
0
0
64
1230004000028400000000
0
2
536870912
115436355584
0
0
64
1230004000028400000000
0
2
536870912
115973226496
0
0
64
1230004000028400000000
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The create LSN column seems to have been truncated so here is is again, sorry for the bulky reply.
CreateLSN
0
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Thanks
James

WebLogic Server clusters not high available!!

          I'm working with WebLogic Server 6.0.
          I try to connect to cluster using explicit IP addresses.
          For this case,first ,I cluster server A,B and C ,then client try to look up home
          interface at server A.
          After server A return home reference ,client creates EJB object and calls method
          using that reference .
          If server A fail, it still working with others server ,B and C.
          But if new client try to find home reference at server A ,he can't.
          This situation means that WebLogic Server cluster is not high availability or
          I did something wrong with configuration?
          And if I missed something ,how can I fix it?
          Thanks for your attention.


Hi King,
          If you look up at a non-existent IP/port, then it will not respond. That is
          expected behavior.
          You should not be using an explicit IP like that. At least use DNS round
          robin.
          Peace,
          Cameron Purdy
          Tangosol Inc.
          Tangosol Coherence: Clustered Coherent Cache for J2EE
          Information at http://www.tangosol.com/
          "KING TEAM" <[email protected]> wrote in message
          news:3c449200$[email protected]..
          >
          > I'm working with WebLogic Server 6.0.
          > I try to connect to cluster using explicit IP addresses.
          >
          > For this case,first ,I cluster server A,B and C ,then client try to look
          up home
          > interface at server A.
          >
          > After server A return home reference ,client creates EJB object and calls
          method
          > using that reference .
          >
          > If server A fail, it still working with others server ,B and C.
          >
          > But if new client try to find home reference at server A ,he can't.
          >
          > This situation means that WebLogic Server cluster is not high availability
          or
          > I did something wrong with configuration?
          >
          > And if I missed something ,how can I fix it?
          >
          > Thanks for your attention.
          >
          >

HTTP Server High Availability

Hello All.
I have a question regarding OC4J and HTTP server High Availability.
I want to do something like the Figure 3-1 of the Oracle Application Server High Availability Guide 10.1.2. See this link
http://download-east.oracle.com/docs/cd/B14099_11/core.1012/b14003/midtierdesc.htm#CIHCEDFC
What I have now is the following:
Three hosts
Two of them are an OAS 10.1.2 which we already configured the Cluster and deployed our applications (used this tutorial: http://www.oracle.com/technology/obe/obe_as_1012/j2ee/deploy/j2eecluster/farmcluster.htm)
Let's say this nodes are:
- host1
- host2
The other one is the Oracle WebCache stand alone (will act as Load Balancer). We will call this
- hostwc3
We already configured the WebCache as Load Balancer and is working just fine. We also configured the session replication successful and work great with our applications.
What we have not clear is the following:
When a client try to visit http://hostwc3/application/ the LOAD BALANCER routes him to, let's say http://host1/application/ and in the browser's URL will not show the Virtual Server anymore (the webcache server) and will show the actual real Apache address (host1 )that is attending him. IF we "kill" on ENTIRE host1 (apache, oc4j, etc..) the clients WILL perceive the down and if they try to press F5, the will try to access to an Apache that doesn't is up and running.... The behavior expected is that the browser NEVER shows the actual Apache URL, so, when some apache goes down, the client do not disconnect (as it happens with and OC4J downfall ) and always works with the "virtual web server".
I came up with some ideas but I want you Guys to give me an advice:
- In Web Cache, do not route for load balancing to Apache, and route the Oc4J directly (Is this possible?)
- Configure a HTTP Server Cluster, this means that we have to have a "Virtual Name"to the Apaches (two of them). Is this possible? how?
- Use the rewrite mode of the Apache. Is this a good idea?
- Any other idea how to fix the Apache "Single Point Of Failure" ?
According with the figure 3-1 ( Link above ) we do can have HTTP Server in a cluster. But I have no idea how to manage it or configure it.
Thanks in advance any help!

You cannot point Outlook Anywhere to your DAG cluster IP address. It must be pointed to the actual IP address of either server.
For no extra cost DNS round robin is the best you will get, but it does have some drawbacks as it may give the IP address of a server you have taken down for maintenance or the server has an issue.
You could look to implement a load balancer but again if you are doing this for high availability then you want more than one load balancer in the cluster - otherwise you've just moved your single point of failure.
Having your existing NAT and just remembering to update it to point to the other server during maintenance may suit your needs for now.
If you can go into more detail about what the high availability your business is looking to achieve and the budget we can suggest the best method to meet those needs for the price point.
Have a great day
Oliver
Oliver Moazzezi | Exchange MVP, MCSA:M, MCITP:Exchange 2010,Exchange 2013, BA (Hons) Anim | http://www.exchange2010.com | http://www.cobweb.com | http://twitter.com/OliverMoazzezi

Need to add a second weblogic server for high availability

I have a weblogic 10.3.3 server with forms and reports 11.1.1.3.
I have an adminServer, WLS_FORMS and WLS_REPORTS managed servers setup.
This was setup with the wizard, so the WLS_FORMS is in the cluster_forms cluster group and WLS_REPORTS in the cluster_reports group.
I now need to add a second server with forms and reports also to act as one big server and provide high availability and load balancing.
How do I achieve thsi, is there a wizard that will do this?
The two servers are setup in exactly the same way, with the same versions of Weblogic and Forms and Reports.
Thanks in advance.

I do not know "reports 11.1.1.3" application, but from your description this application is already targeted on a clustered configuration.
So it should be sufficient to add 2 new instances in the WebLogic domain "WLS_FORMS_2", "WLS_REPORTS_2", include them into the existing clusters and add a load balancer (like apache + wleblogic-plugin) that will balance requests on instances.
I never heard of wizards to create such clustered environments. However it is not hard to do:
1- Install binaries on the new machine
2- Create the domain configuration directory on the new machine using config.sh wizard in the same way you have aleady done with the first machine.
In this step you can create a clone of the existing domain, but it is enough to create a domain with the same name and the same admin instance.
Instead of using config.sh, you can also copy the domain directory from the existing machine and change diretories in scripts if needed.
The domain configuration is needed only to find the binaries, the basic domain files common to all installations, and to allow startup scripts (see point 4-) to connect to the admin and download the domain/instance configuration.
3- Configure the new instances on the existing WebLogic console
4- Create startup scripts for "WLS_FORMS_2", "WLS_REPORTS_2" on the second machine
Bye
Mariano

Migrating Dimension Server from local installation to High Availability

Hi Team,
When Hyperion was installed on the client site (11.1.2.3), there was no requirement for EPMA to become highly available.
Now that has become a requirement to make it highly available in the event that one of the virtual machine is unreachable.
In the event that a server becomes unavailable, it is acceptable for a manual failover procedure to be done.
What steps can be taken to prepare for such an event?
Possible outcome:
Configure another dimension server on the second Virtual machine and leave it manually switched off.
Modify the IIS path to point to a clustered location accessible by both machines.
In the event of a failover, manually bring up the dimension server on the other machine.
This is yet to be implemented successfully.
Current Scenerio:
1 x Windows Machine hosting:
Foundation Services
Calculation Manager
Performance Architect
Planning
Reporting and Analysis
Repository location on a shared mount (Clustered filesystem)
FDQM
Essbase
Analytic Provider Services
Essbase Integration Services (not used)
Essbase Studio (not used)
1 x Linux Machine
Essbase Server
Arborpath on a shared mount
Aim: Add 2 new Virtual Machines ( 1 x Windows App Server + 1 x Linux Essbase Server) for high availability.
Progress:
Windows Machine components clustered:
Foundation Services
Calculation Manager
Planning
Reporting and Analysis
Essbase
Analytic Provider Services
Linux Essbase Machines:
Configured Active/Passive using OPMN
Challenge faced:
Failover scenerio can be a manual list of steps to provide functionaility.
Please provide support on introducing failover steps for dimension server.

Remote Desktop/Preferences/Task Server
Add the FQDN or I.P address of your server in this pane on your book(basically your pointing your book to your installed software on the other machine). Setup your server with the installs you want it to make, and administer it via your book (or any machines with another unlimited ARD) IF you want report generation, you would schedule the clients to send the info to the server. A task server can only do 2 things, install packages or change client settings, thats it.

SQL Server Analysis Services (SSAS) 2012 High Availability Solution in Azure VM

I have been testing an AlwaysOn high availability failover solution in SQL Server Enterprise on an Azure VM, and this works pretty well as a failover for SQL Server Databases, but I also need a high availability solution for SQL Server
Analysis Server, and so far I haven't found a way to do this. I can load balance it between two machines, but this isn't working as a failover and because of the restriction of not being able to use shared storage in a Failover Cluster in Azure
VM's, I can't set it up as a cluster which is required for AlwaysOn in Analysis Services.
Anyone else found a solution to use an AlwaysOn High Availability for SQL Analysis Services in Azure VM? As my databases are read-only, I would be satisfied with even just a solution that would sync the OLAP databases and switch
the data connection to the same server as the SQL databases.
Thanks!
Bill

Bill,
So, what you need is a model like SQL Server failover cluster instances. (before sql server 2012)
In SQL Server 2012, AlwaysOn replaces SQL Server failover cluster, and it has been seperated to
AlwaysOn Failover Cluster Instances (SQL Server) and
AlwaysOn Availability Groups (SQL Server).
Since your requirement is not in database level, I think the best option is to use AlwaysOn Failover Cluster Instances (SQL Server).
As part of the SQL Server AlwaysOn offering, AlwaysOn Failover Cluster Instances leverages Windows Server Failover Clustering (WSFC) functionality to provide local high availability through redundancy at the server-instance level—a
failover cluster instance (FCI). An FCI is a single instance of SQL Server that is installed across Windows Server Failover Clustering (WSFC) nodes and, possibly, across multiple subnets. On the network, an FCI appears to be an instance of SQL
Server running on a single computer, but the FCI provides failover from one WSFC node to another if the current node becomes unavailable.
It is similar to SQL Server failover cluster in SQL 2008 R2 and before.
Please refer to these references:
Failover Clustering in Analysis Services
Installing a SQL Server 2008 R2 Failover Cluster
Iric Wen
TechNet Community Support

Hyper-V High Availability / Server Reboots

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