Failover for server farm

If you have a basic configuration on the ACE which consists of
VIP --> serverfarm -----> server1
-----> server 2
if one of the servers is removed or fails will the ACE detect this without probes being configured? and if so how does it detect the failure?
thanks

When you doesn't configure probe, ACE only detects server down with arp table.
It mean rserver goes down when arp timer is expired and rserver state will become ARP_FAILED.
Default arp timeout of rserver is 300 seconds as below.
ACE20/Admin# sh arp timeout
Context:Admin
Refresh Time:
   Learned Address      : 14400 seconds
   Configured Address   : 300 seconds
Retry Rate              : 10 seconds
Max retries per host    : 3
Periodic Sync Interval : 5
You can change this value with 'arp interval' command on configuration mode.
However, this configuration change effects all configured address.
So, I recommend you configure probe.
Regards,
Yuji

Similar Messages

Failover between server farms

Hi,
I'm requesting advise on problem below :
- I have 2 datacenter with one server farm on each DC and 5 servers behind each server farm
- each server has 5k max connection limit on each server farm
- I want to be able to be able to failover to one SF to another when max connection for the server farm reach 25k (that mean each of 5 servers has reached its max conn)
Can I do that with partial-threshold ?
in Cisco documentation it's stated : "
Each time that a server is taken out of service (for example, using the CLI, a probe failure, or the retcode threshold is exceeded), the ACE is updated"
Would max-conn exceed be equivalent to "out of service" ?
thanks for any contribution
cheers

Hi,
I beleive Cisco ACE platform because of H/w design will not do failover for partial-threshold when primary server farms servers reached "MAXCONN" state and partial-threshold trigger. you will observe connection drop in that condition.
for your setup i will suggest to use simple backup server farm with no partial threshold. this work and when all the server in serverfarm are no longer usable (out of service or maxconn) back server farm will be activated.

Configuring Health Probe for Server Farm

If I have a server farm with real servers listening on port 8888 and I apply an HTTP-type health probe with no port number specified, will the ACE know to probe the servers at 8888 or will it try to probe port 80?

Hi,
Yes it should inherit the port from the real servers defined in the serverfarm. This gives you the flexibility to associate same probe with different serverfarms probing different servers on different ports. This is probe port inheritance feature which is there in ACE.
Regards,
Kanwal

CSM health probe for server farm with multiple vservers

Is there a way to specify the vserver port that a health probe monitors when multiple vservers are configured for the same serverfarm? Let's say I have a serverfarm named farm1. farm1 services two ports www and https so two vservers vserver_www and vserver_https are configured and bound to farm1. I would like to enable http health probe on farm1 with the intention of only monitoring vserver_www http port but, instead, the health probe monitors both www and https and since a http probe on https fails it takes farm1 reals and both vservers vserver_www and vserver_https out-of-service. Is there a way to configure a health probe to monitor a specific port? Or, should I create two duplicate serverfarms farm1 bound to vserver_www and farm2 bound to vserver_https and only enable http health probe on farm1? Any other ideas welcomed.

Appreciate the feedback. I also found what I was looking for in configuration examples. To summarize I've borrowed the comment from the URL below:
# The port for the probe is inherited from the vservers.
# The port is necessary in this case, since the same farm
# is serving a vserver on port 80 and one on port 23.
# If the "port 80" parameter is removed, the HTTP probe
# will be sent out on both ports 80 and 23, thus failing
# on port 23 which does not serve HTTP requests.
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/mod_icn/csm/csm_4_2/config/cfgxpls.htm

In a Sharepoint 2013 Server farm how far away can the backup of failover cluster servers be located away from the primary servers

Hello Community
    When you setup a Sharepoint 2013 Server farm
if you want to provide failover clustering, can
the servers that the Sharepoint 2013 Server farm
failover to be located off-site in a different
location (i.e. how far away can the servers the
the primary server in the Sharepoint 2013 Server
farm be away from the failover cluster of backup
Sharepoint 2013 Server farm servers in distance?
    Thank you
    Shabeaut

Hiya,
this article describes in detail the different aspects of creating a highly available SharePoint 2013 server farm.
Create a high availability architecture and strategy for SharePoint 2013
http://technet.microsoft.com/en-us/library/cc748824%28v=office.15%29.aspx

Do you need an additional slot for the RBS and does the RBS count as an additional hard drive in the Sharepoint 2013 Server farm?

Hello Community
    If you have a clustered Sharepoint 2013 Server farm running RAID 10, on a
clustered WS2012 R2 server that has 10 hard drive slots:
        (4) drives being part of the Sharepoint 2013 Server farm
        (1) drive for the Web App Server
        (5) are for hot swap if any of the production hard drives fail
    The question(s) is:
        - If the server only has 10 slots for hard drives are you still allowed to add a
NAS/RBS drive and does the NAS/RBS drive get clustered also, or does this scenario require
reducing the RAID level down to RAID 5 to allow for NAS/RBS hard drive?
        - Does the NAS/RBS hard drive need a hard drive for hot swap?
        - Does the NAS/RBS drive have to have Sharepoint 2013 Server or WS2012 R2 running on it?
        - Does the Web App Server have Sharepoint 2013 running or just WS2012 R2 running on it?
    Thank you
    Shabeaut

RAID 10 requires a minimum of 4 hard drives. The LUN for RBS must be attached to the SQL Server, not SharePoint server, as a local drive. You just need to be running the minimum required OS for the version of SQL Server you're using.
Do you mean Office Web Apps by "Web App Server"? If so, that cannot have SharePoint installed on it. Otherwise, if you're just referring to it as another SharePoint server, yes it would have SharePoint installed on it.
Trevor Seward
Follow or contact me at...
&nbsp&nbsp
This post is my own opinion and does not necessarily reflect the opinion or view of Microsoft, its employees, or other MVPs.

The server farm account should not be used for other services

I have created a new SharePoint Foundation 2013 Farm. I only used the Farm Configuration Wizard to create the Search Service Application, all other aspects of the Farm was created using PowerShell.
The SharePoint Health Analyzer is reporting the following error:
Title: The server farm account should not be used for other services.
Severity: 1 - Error
Category: Security
Explanation: DOMAIN\FARM_ACCOUNT, the account used for the SharePoint timer service and the central administration site, is highly privileged and should not be used for any other services on any machines in the server farm. The following services were
found to use this account: Distributed Cache Service(Windows Service)
Remedy: Browse to
http://centraladminsite:port/_admin/FarmCredentialManagement.aspx and change the account used for the services listed in the explanation. For more information about this rule, see "http://go.microsoft.com/fwlink/?LinkID=142685".
Now I understand how to change the account used to run the Distributed Cache Service, but my query is what account should I use in the least privelage model? I have setup the following 6 accounts as per TechNet guidelines (Link)
and am not sure if one of these accounts should be used or if another account is required:
SQL Server service account
Setup user account
Server farm account
SharePoint Server Search service account
Default content access account
Application pool identity
After reviewing the TechNet article again, I don't fully understand the section titled "Service application accounts". Is the article advising me to create a seperate account for each row in the table? e.g. 1 account for Business Data Connectivity
Service, a different account for "Application Discovery and Load Balancer Service", another account for "App management" and another account for "Distributed Cache", so 4 extra accounts if I choose to install all of these services
within the Farm?
Also, what does the article mean when it says "Plan one set of an application pool and proxy group for each service application that you plan to implement."? How do I go about doing this?
Kevin Evans

After reviewing the TechNet article again, I don't fully understand the section titled "Service application accounts". Is the article advising me to create a seperate account for each row in the table? e.g. 1 account for Business Data Connectivity Service,
a different account for "Application Discovery and Load Balancer Service", another account for "App management" and another account for "Distributed Cache", so 4 extra accounts if I choose to install all of these services within the Farm?
Inder: Yes, It is suggested to have multiple service account for each service application. This increases security and dependencyof 1 account on multiple Service applications. Like below
SQL Server service
Local System account (default)
Setup user
Member of the Administrators group on the local computer
Server farm
Network Service (default)
No manual configuration is necessary.
SharePoint Server Search Service
By default, this account runs as the Local System account.
If you want to crawl remote content by changing the default content access account or by using crawl rules, change this to a domain user account. If you do not change this account to a domain user account, you cannot change the default content access account
to a domain user account or add crawl rules to crawl this content. This restriction is designed to prevent elevation of privilege for any other process running as the Local System account.
Default Content Access
No manual configuration is necessary if this account is only crawling local farm content. If you want to crawl remote content by using crawl rules, change this to a domain user account, and apply the requirements listed for a server farm.
Content Access
Same requirement as the default content access account.
Profile import Default Access
Same requirements as server farm.
Excel Services Unattended Service
Must be a domain user account.
http://technet.microsoft.com/en-us/library/cc263445%28v=office.15%29.aspx
Also, what does the article mean when it says "Plan one set of an application pool and proxy group for each service application that you plan to implement."? How do I go about doing this?
Inder: Each service account has a application pool and you can plan to use same application pool for multiple
service accounts if required. These application pool are then consumed by proxy connection
of each service application. On service application pool, you can see all the service applications and its proxy connection.
If this helped you resolve your issue, please mark it Answered

Configure directiry server failover for delegated admin schema 2

Hello,
I am using Delegated Admin for Schema 2 on solaris 9 sparc platform.
I want to configure directory servers failover for delegated admin.
Unfortunately I havent found any clue for the same.
Can anyone help me?
Regards,
Shujaat Nazir
Senior System Engineer
Cyber Internet Services, Pakistan
http://www.cyber.net.pk

Different product.
Schema 1 used the old iPlanet Delegated Admin.
Schema 2 uses Delegated Admin, based on Identity Server.
As far as I know, failover is not in this product.

...Not alone with problems on "Mail" app server connection, iMap!!!! I believe Apple is strengthening their server farm. Has been out for over a week; they were wise to have the iCloud also in the cloud.

Not alone with problems on "Mail" app server connection, iMap!!!! I believe Apple is strengthening their server farm. Has been out for over a week; they were wise to have the iCloud also in the cloud. Be patient!

Have you considered the possibility that the third party fan software might itself be implicated in the issue, theosib (or perhaps something else introduced at about that time?).
My inclination in a situation like this would be to back up your drive to an external, wipe the drive, and do a clean installation. At the very least I'd try an archive and install.
Do you have plenty of free space on the drive? Once you get things down below the last 10 to 20% things can get hairy at times, and may not be fixed as a result of simply freeing up some room, as free space fragmentation is likely to have set in.
As far as RAM goes, either "Rember" - http://www.kelleycomputing.net:16080/rember/ or, better still, but less user friendly, "memtest" - http://www.memtestosx.org/ does a much better job of checking your RAM than the AHT. Still takes a while to run for a thorough test, but much quicker than the approach you are planning on using.
You might also want to use "Activity Monitor" to check for any applications with progressive "memory leaks" or that are acting as CPU hogs, given your symptoms
Cheers
Rod

Correct Weight Assignment for 3 Server Farm

All -
I have a 3 server farm, 2 boxes are the same 1x 2.2ghz proc 16gb mem, the other box is 2x 2.2ghz with 32gb ram. What would be the correct weight assignment for this scenario? I am currently going 75/75/100. Is this correct? Obviously
I want more users on the server with more resources.

Hi,
It is best to test and measure over time to determine roughly how many more sessions the most powerful box can handle (compared to the others) and adjust the weight accordingly. Specifically, in terms of CPU and RAM it may be twice as
powerful on the surface, however, this may or may not translate to it being able to handle twice as many sessions as one of the other two.
Keeping the above in mind, I think the starting point you are looking for is 25/25/50 for the weights.
-TP

Creation of Server Farm for SAP B1

Can SAP B1 support Server Farm (can be use more than one server). if it possibe how can i get document about thios
Thanks
Ashish

Hi,
The documents to know if farm is supported or not can be downloaded from following links:
1. SAP B1 platform overview : https://websmp108.sap-ag.de/~sapidb/011000358700001241092005E
2. Best Practice System Setup & Sizing : https://wiki.sdn.sap.com/wiki/pages/viewpage.action?pageId=147263734
Rgds,
JimM

VIP still reachable even if primary server farm is down

Hi,
I want to make sure that the a VIP is not PING-able anymore when the primary server farm is down (all servers are down).
For that I have the following configuration :
serverfarm host NCL_FARM_TEST
probe NCL_PROBE_HTTP
rserver CHPAUN028 443
inservice
policy-map type loadbalance http first-match L7_POLICY_NCL_TEST_HTTP
description *** Load balancing rule for test in http mode ***
class L7_CLASS_TEST
serverfarm NCL_FARM_TEST backup NCL_REDIRECT_FARM_SORRY
compress default-method gzip
insert-http Source-IP header-value "%is"
insert-http Remote-Port header-value "%pd"
ssl-proxy client NCL_SSL_CLIENT
policy-map multi-match VIP_PROD_AND_TEST
class L4_CLASS_NCL_TEST_HTTP
loadbalance vip inservice
loadbalance policy L7_POLICY_NCL_TEST_HTTP
loadbalance vip icmp-reply active primary-inservice
nat dynamic 2 vlan 115
appl-parameter http advanced-options NCL_HTTP_PARAM
While testing this feature, I realize that the VIP is still reachable (PING), even if the server in the farm is in PROBE_FAILED status (For test, I have only one srserver in the farm).
Here is the server farm status, while PING is still possible :
CH01AC03/P-115-A# sh serverfarm NCL_FARM_TEST detail
serverfarm : NCL_FARM_TEST, type: HOST
total rservers : 1
active rservers: 0
description : *** Test Server Farm ***
state : INACTIVE
predictor : ROUNDROBIN
failaction : -
back-inservice : 0
partial-threshold : 0
num times failover : 27
num times back inservice : 28
total conn-dropcount : 0
Probe(s) :
NCL_PROBE_HTTP, type = HTTP
----------connections-----------
real weight state current total failures
---+---------------------+------+------------+----------+----------+---------
rserver: CHPAUN028
10.240.3.128:443 8 PROBE-FAILED 0 609 8
description : -
max-conns : - , out-of-rotation count : -
min-conns : -
conn-rate-limit : - , out-of-rotation count : -
bandwidth-rate-limit : - , out-of-rotation count : -
retcode out-of-rotation count : -
In the documentation, the following is written regarding the command "vip loadbalance icmp-reply active primary-inservice" it is stated that the ACE shold discard ping packets if all servers in the primary server farm are down.
I probably missed something, but what ?
Here is the service-policy status :
Policy-map : VIP_PROD_AND_TEST
Status : ACTIVE
Interface: vlan 1 115
class: L4_CLASS_NCL_TEST_HTTP
nat:
nat dynamic 2 vlan 115
curr conns : 0 , hit count : 56
dropped conns : 0
client pkt count : 809 , client byte count: 231750
server pkt count : 1262 , server byte count: 1375334
conn-rate-limit : 0 , drop-count : 0
bandwidth-rate-limit : 0 , drop-count : 0
loadbalance:
L7 loadbalance policy: L7_POLICY_NCL_TEST_HTTP
VIP ICMP Reply : ENABLED-WHEN-PRIMARY-SF-UP
VIP State: INSERVICE
Persistence Rebalance: ENABLED
curr conns : 0 , hit count : 56
dropped conns : 0
client pkt count : 809 , client byte count: 231750
server pkt count : 1262 , server byte count: 1375334
conn-rate-limit : 0 , drop-count : 0
bandwidth-rate-limit : 0 , drop-count : 0
compression:
bytes_in : 1052393
bytes_out : 309229
Compression ratio : 70.61%
Parameter-map(s):
NCL_HTTP_PARAM
Thank you for any hints,
Yves Haemmerli

Gilles,
I have effectively four diferent policy maps :
- one for PROD when the client arrives withh HTTP
- one for PROD when the client arrives with HTTPS
- one for TEST when the client arrives with HTTP
one for TEST when the client arrives with HTTPS
However, the PROD and the TEST environemnts use different server farms. I am testing the icmp-reply feature on the TEST environment. In the TEST environment, both Layer-7 policy maps use the same server farm.
Here are the four polici maps :
policy-map type loadbalance http first-match L7_POLICY_NCL_PROD_HTTP
description *** Load balancing rule for production in http mode ***
class L7_CLASS_PROD
serverfarm NCL_FARM_PROD backup NCL_REDIRECT_FARM_SORRY
insert-http Source-IP header-value "%is"
insert-http Remote-Port header-value "%pd"
ssl-proxy client NCL_SSL_CLIENT
class L7_CLASS_REDIRECT
serverfarm NCL_REDIRECT_FARM_PROD_HTTP
policy-map type loadbalance http first-match L7_POLICY_NCL_PROD_HTTPS
description *** Load balancing rule for production in https mode ***
class L7_CLASS_PROD
serverfarm NCL_FARM_PROD backup NCL_REDIRECT_FARM_SORRY
insert-http Source-IP header-value "%is"
insert-http Remote-Port header-value "%pd"
ssl-proxy client NCL_SSL_CLIENT
class L7_CLASS_REDIRECT
serverfarm NCL_REDIRECT_FARM_PROD_HTTPS
policy-map type loadbalance http first-match L7_POLICY_NCL_TEST_HTTP
description *** Load balancing rule for test in http mode ***
class L7_CLASS_TEST
serverfarm NCL_FARM_TEST backup NCL_REDIRECT_FARM_SORRY
compress default-method gzip
insert-http Source-IP header-value "%is"
insert-http Remote-Port header-value "%pd"
ssl-proxy client NCL_SSL_CLIENT
class L7_CLASS_REDIRECT
serverfarm NCL_REDIRECT_FARM_TEST_HTTP
policy-map type loadbalance http first-match L7_POLICY_NCL_TEST_HTTPS
description *** Load balancing rule for test in https mode ***
class L7_CLASS_TEST
serverfarm NCL_FARM_TEST backup NCL_REDIRECT_FARM_SORRY
insert-http Source-IP header-value "%is"
insert-http Remote-Port header-value "%pd"
ssl-proxy client NCL_SSL_CLIENT
class L7_CLASS_REDIRECT
serverfarm NCL_REDIRECT_FARM_TEST_HTTPS
Yves

When connecting to a server farm in sharepoint foundation 2013 cannot create new farm error: One or more types failed to load

When trying to create a new server farm in the sharepoint foundation 2013 we get a following error :
The local farm is not accessible. Cmdlets with FeatureDependencyId are not registered.
PS C:\Users\Administrator> New-SPConfigurationDatabase
cmdlet New-SPConfigurationDatabase at command pipeline position 1
Supply values for the following parameters:
DatabaseName: SharePoint_Config
DatabaseServer: PC78\SQLEXPRESS,25111
FarmCredentials
Passphrase: *********
New-SPConfigurationDatabase : One or more types failed to load. Please refer
to the upgrade log for more details.
At line:1 char:1
+ New-SPConfigurationDatabase
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidData: (Microsoft.Share...urationDatabase:
SPCmdletNewSPConfigurationDatabase) [New-SPConfigurationDatabase], SPUpgra
deException
+ FullyQualifiedErrorId : Microsoft.SharePoint.PowerShell.SPCmdletNewSPCon
figurationDatabase
And the error log is shown below :
Microsoft.SharePoint.Upgrade.SPUpgradeException: One or more types failed to load.
Please refer to the upgrade log for more details.
at Microsoft.SharePoint.Upgrade.SPActionSequence.LoadUpgradeActions()
at Microsoft.SharePoint.Upgrade.SPActionSequence.get_ActionsInternal()
at Microsoft.SharePoint.Upgrade.SPUtility.GetLatestTargetSchemaVersionByMajorVersion(Type typeActionSequence, Int32 majorVer)
at Microsoft.SharePoint.Upgrade.SPUtility.get_CurrentSPSiteWssTargetSchemaVersion()
at Microsoft.SharePoint.Administration.SPSiteCollection.Add(SPContentDatabase database, SPSiteSubscription siteSubscription, String siteUrl, String title, String description, UInt32 nLCID, Int32 compatibilityLevel, String webTemplate, String ownerLogin, String ownerName, String ownerEmail, Strin... b712a522-fa85-49eb-b59c-dedf55295504
...g secondaryContactLogin, String secondaryContactName, String secondaryContactEmail, String quotaTemplate, String sscRootWebUrl, Boolean useHostHeaderAsSiteName, Boolean overrideCompatibilityRestriction)
at Microsoft.SharePoint.Administration.SPSiteCollection.Add(SPSiteSubscription siteSubscription, String siteUrl, String title, String description, UInt32 nLCID, Int32 compatibilityLevel, String webTemplate, String ownerLogin, String ownerName, String ownerEmail, String secondaryContactLogin, String secondaryContactName, String secondaryContactEmail, Boolean useHostHeaderAsSiteName)
at Microsoft.SharePoint.Administration.SPAdministrationWebApplication.CreateDefaultInstance(SqlConnectionStringBuilder administrationContentDatabase, SPWebService adminService, IdentityType identityType, ... b712a522-fa85-49eb-b59c-dedf55295504
...String farmUser, SecureString farmPassword)
at Microsoft.SharePoint.Administration.SPFarm.CreateAdministrationWebService(SqlConnectionStringBuilder administrationContentDatabase, IdentityType identityType, String farmUser, SecureString farmPassword)
at Microsoft.SharePoint.Administration.SPFarm.CreateBasicServices(SqlConnectionStringBuilder administrationContentDatabase, IdentityType identityType, String farmUser, SecureString farmPassword)
at Microsoft.SharePoint.Administration.SPFarm.Create(SqlConnectionStringBuilder configurationDatabase, SqlConnectionStringBuilder administrationContentDatabase, IdentityType identityType, String farmUser, SecureString farmPassword, SecureString masterPassphrase)
at Microsoft.SharePoint.Administration.SPFarm.Create(SqlConnectionStringBuil... b712a522-fa85-49eb-b59c-dedf55295504
...der configurationDatabase, SqlConnectionStringBuilder administrationContentDatabase, String farmUser, SecureString farmPassword, SecureString masterPassphrase)
at Microsoft.SharePoint.PowerShell.SPCmdletNewSPConfigurationDatabase.InternalProcessRecord()
at Microsoft.SharePoint.PowerShell.SPCmdlet.ProcessRecord() b712a522-fa85-49eb-b59c-dedf55295504
Error Category: InvalidData Target Object Microsoft.SharePoint.PowerShell.SPCmdletNewSPConfigurationDatabase Details NULL RecommendedAction NULL b712a522-fa85-49eb-b59c-dedf55295504
Leaving ProcessRecord Method of New-SPConfigurationDatabase. e9ae5ba6-c499-0000-d35c-aee999c4cf01
we are using server 2012 R2 and we don't have office 2010 installed

Yes,SQL server is on the same server as SharePoint
SQL has both the permissions Securityadmin
and DBcreator roles on SQL Server.
When we run those sharepoint management shell commands the database will be created with the error
msg (shown in attachment)

SP 2013 - Error: This operation can be performed only on a computer that is joined to a server farm

Hello Community!
I am working with SharePoint 2013 and I built a farm inside the firewall. Then a decision was made to move the two WFE's to the DMZ. Since that time, whenever I try to access the site collections, I get the error below.  Other information: All
the web applications are on port 80, but I'm not having any problem with accessing Central Administration which is on port 8080; the network team did screw up the DNS originally, but I'm told it's correct now; the two WFE's servers show in my Manage servers
on the Farm interface 2X, once with the server name, once with the fully Qualified Domain Name, the ones with the FQDN shows a Services Running status of Not Configured.
Has anyone else ever seen this error and if so please provide guidance and instruction for fixing the error.
Thanks!
Tom
Server Error in '/' Application.
This operation can be performed only on a computer that is joined to a server farm by users who have permissions in SQL Server
to read from the configuration database. To connect this server to the server farm, use the SharePoint Products Configuration Wizard, located on the Start menu in Microsoft SharePoint 2010 Products.
Description:
An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the
code.
Exception Details: System.InvalidOperationException: This operation can be performed only on a computer that is joined to a server farm by users who have permissions in SQL Server to read from the configuration database. To connect this server
to the server farm, use the SharePoint Products Configuration Wizard, located on the Start menu in Microsoft SharePoint 2010 Products.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified
using the exception stack trace below.
Stack Trace:
[InvalidOperationException: This operation can be performed only on a computer that is joined to a server farm by users who have permissions in SQL Server to read from the configuration
database. To connect this server to the server farm, use the SharePoint Products Configuration Wizard, located on the Start menu in Microsoft SharePoint 2010 Products.]
   Microsoft.SharePoint.Utilities.SPUtility.AlternateServerUrlFromHttpRequestUrl(Uri url) +262
   Microsoft.SharePoint.Administration.SPAlternateUrl.GetContextUri(HttpContext ctx) +385
   Microsoft.SharePoint.SPAppRequestContext.InitCurrent(HttpContext context) +1013
   Microsoft.SharePoint.SPAppRequestContext.get_Current() +175
   Microsoft.SharePoint.SPGlobal.CreateSPRequestAndSetIdentity(SPSite site, String name, Boolean bNotGlobalAdminCode, String strUrl, Boolean bNotAddToContext, Byte[] UserToken,
SPAppPrincipalToken appPrincipalToken, String userName, Boolean bIgnoreTokenTimeout, Boolean bAsAnonymous) +400
   Microsoft.SharePoint.SPRequestManager.GetContextRequest(SPRequestAuthenticationMode authenticationMode) +120
   Microsoft.SharePoint.Administration.SPFarm.get_RequestAny() +370
   Microsoft.SharePoint.SPLanguageSettings.GetGlobalInstalledLanguages(Int32 compatibilityLevel) +39
   Microsoft.SharePoint.Administration.SPTemplateFileSystemWatcher.RefreshInstalledLocales() +103
   Microsoft.SharePoint.Administration.SPTemplateFileSystemWatcher.Initialize() +130
   Microsoft.SharePoint.ApplicationRuntime.SPRequestModule.System.Web.IHttpModule.Init(HttpApplication app) +873
   System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +582
   System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +322
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +384
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +397
[HttpException (0x80004005): This operation can be performed only on a computer that is joined to a server farm by users who have permissions in SQL Server to read from the configuration database. To
connect this server to the server farm, use the SharePoint Products Configuration Wizard, located on the Start menu in Microsoft SharePoint 2010 Products.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +646
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +159
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +771
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18010
Tom Molskow - Senior SharePoint Architect - Microsoft Community Contributor 2011 and 2012 Award -
Linked-In - SharePoint Gypsy

Hi Tom,
According to your description, my understanding is that you got an error when you moved your SharePoint.
This error occurs when the SharePoint farm administrator cannot connect to your configuration database. Please verify the followings:
Make sure that from the SharePoint front end and application servers that you can ping your SQL server.
Make sure that your Farm account has permission to the configuration database.
Lastly verify that your database didn't for some reasons go into recovery mode.
once everything is fine and you are still having issues, restart the SQL host service on the SQL server. Once the service is restarted you will need to reboot Central Admin and then your front end servers.
In addition, as you built your farm inside the firewall, please disable the firwall, or create rules for SQL Server service in the firwall on SQL server. More information about creating rules in firewall, please refer to the following posts:
http://social.technet.microsoft.com/Forums/en-US/c5d4d0d0-9a3b-4431-8150-17ccfbc6fb82/can-not-create-data-source-to-an-sql-server
http://www.mssqltips.com/sqlservertip/1929/configure-windows-firewall-to-work-with-sql-server/
Here is a similar post for you to take a look at:
http://social.technet.microsoft.com/Forums/en-US/ea54e26c-1728-48d4-b2c5-2a3376a1082c/this-operation-can-be-performed-only-on-a-computer-that-is-joined-to-a-server-farm-by-users-who-have?forum=sharepointgeneral
I hope this helps.
Thanks,
Wendy
Wendy Li
TechNet Community Support

Logging into a specific server in a terminal server farm

We have several terminal server farms and in each farm we have the need for 1 user to always log into a specific server in the farm. This is due to a little piece of sortware that is required for a device that only this one user has and
the fact the it is licensed to only one server. The user must use that server for it to work. I want to include this server in the farm because it seems silly to have a server for only one user. How can I point one PC/user
to the same server in the farm all the time? We are using the Connection Broker and NLB which seems to work just fine for all other users.
Thanks

Hi Steve,
What operating system version are you running on your servers? Server 2008 R2? Server 2012?
When you configure a RDS farm to be load-balanced by the connection broker, all servers in the unique farm are intended to have the exact same applications installed. The idea is the RDCB can redirect users to different servers as needed to balance
the load, and that you may take any particular server (or servers, if you have enough) offline and your farm will still work.
Now, there are always exceptions and I understand it would be nice if you could assign a user/app to a specific server to handle a case like yours. For example, you would understand this particular user or app would not be load-balanced or highly
available and if the one server was down it would not work, but other users/RemoteApps would be load-balanced as usual. This is
not a feature of the current versions of RDS.
To do what you want the "best way" would require writing a custom plugin for RDCB. In your custom plugin you would specifiy the load-balancing logic. For example, when one of the "special" users logs on, your logic would direct them to the
correct specific server, but when a regular user logs on you would allow the normal RDCB load-balancing logic to apply. Please see here for more information:
Terminal Services Session Broker Plug-in reference
http://msdn.microsoft.com/en-us/library/windows/desktop/cc644962(v=vs.85).aspx
Besides writing a custom plugin I suggest you consider the following workarounds:
1. Instead of running the app under RDSH, run it in a Win7/Win8 VM pool if possible. Either a pool of identical VMs or assign each user that needs to run the app to a dedicated VM. Downside of this is added complexity, licensing for VDI,
and an increase in hardware resources required to run the VMs.
2. Have the user connect to the server using /admin. You can change the permissions so that a specific group may connect using a /admin connection, without them being administrators. Downside of this is that some features
of RDSH are not present when connected as an administrative RDP session, and only two Active admin sessions are permitted.
3. If running Server 2008 R2 you could set the server so that it does not participate in load balancing and have the users that need to run this special app connect directly to the server's ip address instead of to the farm name. Downside of this
is that you will get more uneven load distribution, however, it may not be that bad if you are balancing your initial connections using NLB and you have all of your regular users connecting to the farm name as usual.
4. Have a separate server in each farm (not joined to the farm) just for this one app. If possible they could be VMs with not much resources dedicated to each. I know this is what you did not want to do, but I mention it because an
extra base Windows Server license, one for each farm, is likely less additional cost than licensing the special software on
all servers. If you can run the app in VMs then the additional hardware cost of doing it this way is reduced.
-TP

Failover for server farm

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