Multiple partitions on a ox s server raid 1 system

Dear all,
Please help this half bald man!!!
I have a G5 xserve with unlimited server 10.5 that has 3 x 750 gig physical hard drives.
I am having trouble getting the partition and raid schemes working together that i want.
Firstly, the system will only see 698 gigs rather than the whole 750 gig space for each physical drive but this is not a major issue as i can work with just the 698.
Next, i want to have a raid 1 mirrored system where i have 2 of the 3 disks in the raid and the 3rd disk as a hot spare to come online straight away if any of the others fail.
I want to have 2 partions on the raid. One of 100 gb for the system files and one of 598 for the data files. All this i want on the raid 1 mirrored system.
What i have been trying to do is to first partition all the 3 physical disks which gives me 6 logical drives which are 3 x 100 gb logical drives and 3 x 598 logcial drives and THEN drag them into the raid screen to build 2 lots of raid 1 mirrored systems, of which the first one would be 100 gb and the next one would be 598 but this is not working as it's only letting me create only one raid system using only one logical partition from each physical drive.
I am tearing my hair out (what i got left anyway)!
Is there anybody out there that came help me??
Kind regards,
Neil Watson

Hi all,
I don't know what i am doing wrong. I have tried all those suggestions with no success. Apple have been very, very kind and have given me a bit of free support on this issue and the one thing that they have said, is that Disk Utility does not actually support automatic raid rebuild so bang goes that idea on that part, my whole idea and thinking is not workable.
What i have now done it just to have the system drive on it's own physical disk and raided 1 on the other 2 data disks.
Thanks all anyway.
Kind regards,
neil

Similar Messages

Home Directories when installing on multiple partitions

I have a macpro setup with two partitions. Originally one partition assigned to Snow Leopard. I log in using a network user (using OSX server) and that user has local Admin rights. All is well.
I setup a new instance of Snow Leopard on the secondary Partition and logged in using the network user. This had the effect of using the partition 1 Home directory for this user and I can't get the secondary partition to use itself for storing the users home directory.
The workaround I have is to log in to Partition 2 snow leopard with a local admin user then temporarily rename the Users folder on partition 1. Next login to partition 2 as the network user, then everything gets created on partition 2 as expected. Finally rename the Partition 1 Users folder back. Now I can log in to either partitoin with the same user and have different local home setups.
Anyone else had this or is there a better procedure for setting up multiple partitions ? The same happens with LION. I need to keep a snowleoapard partition with all the setup I currently have, but start a new LION partition. I don't want any cross contamination, hence the requirement for separation.

This was my point. I wanted total separation. In order to create that separation (when trying to use a network user) I had to temporarily move the existing Snow Leopard Users folder (on Partition 1) so that the Partition 2 OS (either Snow leopard or LION) will create it's own User directory structure. This is only needed for network users (i.e. ones that authenticate via OSX server).
Once the process of temporarily moving the Users folder, letting the new instance create it's own directories, and renaming back, everything works. i.e. when I startup Snowleopard all operations are within Partition 1 then if I start LION all operations are within Partition 2.
When installing new versions of an O/S I like to have control and manage the change so that I know I have a totally working system. Been doing the same with Linux for years, but Mac OS/X tries to be a bit too clever!

X-Serve RAID unmounts on large file copy

Hi
We are running an X-Serve RAID in a video production environment. The RAID is striped RAID 5 with 1 hot spare on either side and concatenated with Apple Disk Utility as RAID 0 on our G5, to appear as one logical volume.
I have noticed, lately, that large file copies from the RAID will cause it to unmount and the copy to fail.
In the console, we see:
May 4 00:23:37 Orobourus kernel[0]: FusionMPT: Notification = 5 (External Bus Reset) for SCSI Domain = 1
May 4 00:23:37 Orobourus kernel[0]: FusionMPT: External Bus Reset for SCSI Domain = 1
May 4 00:23:37 Orobourus kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 1
May 4 00:23:37 Orobourus kernel[0]: FusionFC: Link is down for SCSI Domain = 1.
May 4 00:23:37 Orobourus kernel[0]: FusionMPT: Notification = 8 (Loop State Change) for SCSI Domain = 1
May 4 00:23:37 Orobourus kernel[0]: FusionFC: Loop Initialization Packet for SCSI Domain = 1.
May 4 00:23:37 Orobourus kernel[0]: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 1
May 4 00:23:37 Orobourus kernel[0]: FusionFC: Link is active for SCSI Domain = 1.
May 4 00:23:37 Orobourus kernel[0]: FusionMPT: Notification = 6 (Rescan) for SCSI Domain = 1
May 4 00:23:37 Orobourus kernel[0]: AppleRAID::completeRAIDRequest - error 0xe00002ca detected for set "tao.av.complexity.org" (868584D1-E485-4B37-AFCE-E7AFC3AD5BB7), member CBDFD75C-5DC8-4089-A7AE-1EFBE0B1A6EB, set byte offset = 1674060574720.
May 4 00:23:37 Orobourus kernel[0]: disk5: I/O error.
May 4 00:23:37 Orobourus kernel[0]: disk5: device is offline.
May 4 00:23:37 Orobourus kernel[0]: AppleRAID::recover() member CBDFD75C-5DC8-4089-A7AE-1EFBE0B1A6EB from set "tao.av.complexity.org" (868584D1-E485-4B37-AFCE-E7AFC3AD5BB7) has been marked offline.
May 4 00:23:37 Orobourus kernel[0]: AppleRAID::restartSet - restarting set "tao.av.complexity.org" (868584D1-E485-4B37-AFCE-E7AFC3AD5BB7).
May 4 00:23:37 Orobourus kernel[0]: disk5: media is not present.
May 4 00:23:37 Orobourus kernel[0]: disk5: media is not present.
May 4 00:23:37 Orobourus kernel[0]: jnl: dojnlio: strategy err 0x6
May 4 00:23:37 Orobourus kernel[0]: jnl: end_transaction: only wrote 0 of 12288 bytes to the journal!
May 4 00:23:37 Orobourus kernel[0]: disk5: media is not present.
May 4 00:23:37 Orobourus kernel[0]: disk5: media is not present.
May 4 00:23:37 Orobourus kernel[0]: disk5: media is not present.
May 4 00:23:37 Orobourus kernel[0]: jnl: close: journal 0x7b319ec, is invalid. aborting outstanding transactions
Following such an ungainly dismount, the only way to get the RAID back online is to reboot the G5 - attempting to mount the volume via Disk Utility doesn't work.
This looks similar to another 'RAID volume unmounts' thread I found elsewhere in the forum - it appeared to have no solution apart from contacting Apple.
Is this the only recourse?
G5 2.7 6.5Gb + X-RAID 3.5Tb Mac OS X (10.4.9) Decklink Extreme / HD

There should be no need to restart the controllers to get additional reporting -- updating the firmware restarts them.
If blocks are found to be bad during reconditioning, then the data in the blocks should be relocated, and the "bad" blocks mapped out as bad. The Xserve RAID has no idea whatsoever what constitutes a "file," given it doesn't know anything about the OS (you can format the volumes as HFS+, Xsan, ZFS, ext3, ReiserFS, whatever... this is done from the host and the Xserve RAID is completely unaware of this). So if the blocks can be successfully relocated (shouldn't be too hard, given the data can be generated from parity), then you're good to go. If somehow you have bad blocks in multiple locations on multiple spindles that overlap, then that would of course be bad. I'd expect that to be fairly rare though.
One thing I should note is that drives don't last forever. As the RAID ages, the chances of drive failure increase. Typically drive lifespan follows a "bathtub curve," if you imagined looking a a cross-section of a crow's foot tub. Failures will be very high early (due to manufacturing defects -- something testing as "burn in" should catch -- and I believe Apple does this for you), then very low for a while, and then will rise markedly as drives get "old." Where this is would be a subject for debate, but typical data center folks start proactively replacing entire storage systems at some point to avoid the chance of multiple drive failure. The Xserve RAIDs have only been out for 4 years, so I wouldn't anticipate this yet -- but if it were me I'd probably start thinking about doing this after 4 or 5 years. Few experienced IT data center folks would feel comfortable letting spindles run 24x7x365 for 6 years... even if 95% of the time it would be okay.

SSDT SSAS Project: Can't create multiple partitions

"Warning: The destination server is running a SQL Server edition that does not support multiple partitions. Please deploy to another server."
I get this error, when I try to deploy against a SSAS 2012 Developer Edition instance, same happens when I go against a SSAS 2012 Enterprise Edition instance. What part am I missing or is this a SSDT bug ?
I first posted this question on the SSDT forum since it seems that there are two totally indepentent teams that just work by coinscience under the Microsoft brand on a product that by accicent has the same name "SSDT" ;-)

Hi Ernestomawan,
According to your description, you get this warning when you deploy a SQL Server Analysis Service project to Enterprise Edition instance, right? A you can see on the link
Features Supported by the Editions of SQL Server 2012(Analysis Services section), Multiple Partitions is supported on
Enterprise, Business Intelligence and Standard(up to 3) editions.
So in your scenario, in SQL Server Data Tool go to Project Property Page and ensure that For Deployment Server Edition Enterprise is selected.
Hope this helps.
Regards,
Charlie Liao
TechNet Community Support

SQL statement for selecting multiple partitions

Hi All,
May i know how to Select data from a table having multiple partitions ?
Example : Owner = Scott, Table= Emp, Partitions (P1,P2,P3,P4,P5)
Thanks

no...
SQL>
1 create table partition_test
2 (owner, object_name, object_id)
3 partition by list(owner)
4 (partition part_1 values ('SYS'),
5 partition part_2 values ('SYSTEM'),
6 partition part_3 values ('OUTLN')
7 ) as select owner, object_name, object_id from all_objects
8* where owner in ('SYS', 'SYSTEM', 'OUTLN')
9 /
Table created.
SQL> select count(*) from partition_test partition(part_1, part_2);
select count(*) from partition_test partition(part_1, part_2)
ERROR at line 1:
ORA-00933: SQL command not properly ended
SQL> select count(*) from partition_test partitions(part_1, part_2);
select count(*) from partition_test partitions(part_1, part_2)
ERROR at line 1:
ORA-00933: SQL command not properly ended
SQL> select count(*) from partition_test partitions(part_1 + part_2);
select count(*) from partition_test partitions(part_1 + part_2)
ERROR at line 1:
ORA-00933: SQL command not properly ended
SQL> select count(*) from partition_test partitions(part_1 between part_2
select count(*) from partition_test partitions(part_1 between part_2)
ERROR at line 1:
ORA-00933: SQL command not properly ended
SQL> select count(*) from partition_test partitions("part_1 part_2");
select count(*) from partition_test partitions("part_1 part_2")
ERROR at line 1:
ORA-00933: SQL command not properly endedand this is the documented behavior:
"partition_extension_clause
For PARTITION or SUBPARTITION, specify the name or key value of the partition or subpartition within table from which you want to retrieve data.
For range- and list-partitioned data, as an alternative to this clause, you can specify a condition in the WHERE clause that restricts the retrieval to one or more partitions of table. Oracle Database will interpret the condition and fetch data from only those partitions. It is not possible to formulate such a WHERE condition for hash-partitioned data."
from:
http://download.oracle.com/docs/cd/B28359_01/server.111/b28286/statements_10002.htm#i2076542
Amiel

Selecting data from Multiple Partitions in a single select stmt.

Hi all,
My Database is very large & my tables are partitioned.
My question is:
1) If my data is spread across multiple partitions, is there any way to select data from multiple partitions in a single query?
If we dont mention partition name also it works fine, but perofmance wise it will be very slow. (Using EXPLAIN PLAN)
(Note:I dont want to make use of Union concept, i want to do it in a single select statement)
For ex:
qry1.sql:
select empno from emp_trans partition (P012000)
This above query(qry1.sql) will work fine.
qry2.sql:
select empno from emp_trans partition (P012000,P022000)
The above query(qry2.sql) will return will return the following error:
ORA-00933: SQL command not properly ended
If anybody has any solution for this, pls mail me immediately.
Thanks in advance
bye
null

All my queries are dynamically generated. All my tables are also indexed partition wise based on date field. My question is, if i want to mention multiple partition names at the time of generating my query(select), then with parformance will be good. I have refered some books, inthat what they say is to use UNION concept, i dont want to use that, instead i want in a single select statement.
Thaks for ur reply
Bye
null

How do I host multiple domains on a single Messaging Server?

How do I host multiple domains on a single Messaging Server?
<p>
To host multiple domains on one Messaging Server, use the
mailAlternateAddress attribute. If you want to host two domains
(customer1.com and customer2.com) on your server mail1.domain.com,
make sure that:
The various domains (in DNS) point to the installed mail server
(you must have the MX records that
points mail for customer1.com to mail1.domain.com and
customer2.com to mail1.domain.com)
That each person receiving mail at customer1.com and
customer2.com has an appropriate mailAlternateAddress
attribute describing the appropriate email address. For
instance, John Doe can have an email address (i.e. the value
of the 'mail' attribute for the John Doe LDAP entry) of
[email protected] and receive his mail on
[email protected] (the value of the mailAlternateAddress
attribute)
With Messaging Server 3.5, mailAlternateAddress can take the
form of @mail1.domain.com. If jdoe's mailAlternateAddress is
set to @mail1.domain.com, mail sent to [email protected]
will be delivered to [email protected]

jaygatsby1123 wrote:
So what exactly am I doing with virtual hosts? There is a place for Aliases... What would I put in the "Aliases" box?
Any other host name that you want to resolve to the specified virtual host. It's quite literally an alias.
if you want www.example.com and www.example.org to end up at the same web site and you already have a virtual host — Apple refers to virtual hosts as sites — configured for www.example.com in Server.app, then you'd add www.example.org as an alias for the www.example.com virtual host (site).
Virtual hosts are implemented in a web server using some details of the HTTP or HTTPS protocol, and what the web browser (client) specified. The client gets handed an IP address or a domain name by the user, and the client then fetches the associated IP address for the target web server from the client's DNS services or local host database, and the client then connects to the IP address and passes over the text string that the user had requested — the IP address or domain name or even some local shortcut set up in the client system — via the HTTP or HTTPS protocol. The web server receives and processes this arriving text string from the client, and uses it to select which web site to render back to the web client. One subtle detail lurks here, too: the server's own DNS configuration really isn't involved in the selection of the virtual host.

Start multiple domains simultaneously on 1 Weblogic server installation?

Is it okay to start and run multiple domains simultaneously. Better yet, when having multiple domains on 1 WLS server, should each domain have a different port number in order to be run simultaneously?
Here's my scenario - I installed Oracle Business Intellgence, which by default installs and configures WLS server for certain Business Intelligence applications (BI Publisher). This instance was running fine and good and still is.
Then I had another application, Oracle Data Integrator, which has a Console piece that requires a domain on WLS. So instead of modifying the existing domain for Oracle Business Intelligence, I created a new domain via the Configuration Wizard and selected those components for Oracle Data Integrator.
therefore current domains:
...\domains\bifoundation_domain --> installed automatically as part of Oracle Business Intelligence
...\domains\odi11g --> I created this domain after I
Now I have 2 domains under 1 WLS Server (windows 7 64bit), but if I startWeblogic.cmd for the bifoundation_domain, and I startWeblogic.cmd for the odi11g...then only the components for the bifoundation_domain become available via the WLS Console.
Questions:
- Can I run both domains simultaneously?
- Should I have modified the bifoundation_domain to include Oracle Data Integrator component; therefore only having 1 domain but having everything run under that domain?
- Does the Port for each domain matter? both bifounddation_domain and odi11g domain use ports 7001
Are there any other considerations? Thanks much.

Hi,
It is perfectly OK to run multiple domains on a single Weblogic server installation. Only constraint would be you have enough capacity available on your server to start multiple instances.
Things to note is, if your domain1 is running on listen address : port { localhost : 7001 } then your other domain should be configured on a different port say {localhost : 8001 }. If you want both domain to run on same port then go for virtual IP's to be plumbed on your physical network interface and configure as,
domain1 - { ip1 : 7001 }
domain2 - { ip2 : 7001 }
this way you will can access both domain admin console on same port.
Remember, Weblogic resources cannot be shared between domain, however a single nodemanager will be enough to monitor both the domains.
* rank it if answer is helpful :) *
Thanks,
Ranjan

Multiple Import into Multiple schemas in a single Database server ?

Is it possible to create a multiple import into multiple schema in a single DB server ?

Hi,
Yes, You can do it.. With Multiple Export File..it may cause some Performance issue, so need to check your Server configuration before do that..

Is it possible to have multiple partitions on my hard disk drive and use Bootcamp to install Windows?

Hi all,
Here is my question: I have MBP early 2011 and was trying to install Windows 8 using Bootcamp but the option to install Windows is grayed out so I can’t click the box next to “Install or Remove Windows 7.” Is this because I have multiple partition on my hard disk drive? Is there anyway I can install Windows 8 using Bootcamp without deleting my partitions on my hard disk?
Few more details:
Mountain Lion 10.8.2
Bootcamp 5.0.0
Thanks for your response

You can't create a Boot Camp partition on a drive you've already partitioned, and you can't install Windows 8 through Boot Camp at this time.
(71680)

Multiple domains hosted on one OSX Server

Hi guys,
Does anyone know if it is possible to host more than one domain name on OSX server?
A client of mine runs a number of businesses and is considering Snow Leopard Server, and wants to have multiple email domains and websites hosted on one server. Also per-account contacts sync and calendar sync would be useful, does anyone know if that's available?
Thanks!
W.

You can certainly host multiple domains on Mac OS X Server. There are a few options depending on how you want it to work.
If all the usernames are the same across all domains (e.g. [email protected] is the same person as [email protected]) then just change the mail server configuration to match all the domains in the mydestination parameter in /etc/postfix/main.cf.
If the domains are different (e.g. [email protected] is not the same account as [email protected]) then you have two options - one is to use the postfix model (which requires command-line management), the other is to add the email addresses in the shortname section for each user.
You may have some issues integrating contacts and calendars, though - if you take the postfix model then the users won't exist in Open Directory and won't have a calendar/contact link, etc.
If you follow the shortname model then you have one directory with all users in all domains and you'll need to work to separate them out if you need to.

Warehouse partitioning - performance of queries across multiple partitions?

Hi,
We are using Oracle 11.2.0.3 and have a large central fact table with several surrogate ids which have bitmap indexes on them and have fks looking at dimension tables + several measures
(PRODUCT_ID,
CUSTOMER_ID,
DAY_ID,
TRANS_TYPE_ID,
REGION_ID,
QTY
VALUE)
We have 2 distinct sets of queries users look to run for most part, ones accessing all transactions for products regradless of the time those transactions happened (i.e. non-financial queries - about 70%,
queries determining what happened in a particular week - 20% of queries.
Table will have approx 4bn rows in eventually.
Considering adding extra column to this DATE and range partition this to allow us to drop old partitions every year - however this data wouldn't be joined to any other table.
Then considering sub-partitioning by hash of product_id which is surrogate key for product dimension.
Thoughts on performance?
Queries by their nature would hit several sub-partitions.
Thoughts on query performance of queries which access several sub-partitions/partitions versus queries running aganist a single table.
Any other thoughts on partitioning strategy in our situation much apprecaited.
Thanks

>
Thoughts on query performance of queries which access several sub-partitions/partitions versus queries running aganist a single table.
>
Queries that access multiple partitions can improve performance for two use cases: 1) only a subset of the entire table is needed and 2) if the access is done in parallel.
Even if 9 of 10 partitions are needed that can still be better than scanning a single table containing all of the data. And when there is a logical partitioning key (transaction date) that matches typical query predicate conditions then you can get guaranteed benefits by limiting a query to only 1 (or a small number) partition when an index on a single table might not get used at all.
Conversely, if all table data is needed (perhaps there is no good partition key) and parallel option is not available then I wouldn't expect any performance benefit for either single table or partitioning.
You don't mention if you have licensed the parallel option.
>
Any other thoughts on partitioning strategy in our situation much apprecaited.
>
You provide some confusing information. On the one hand you say that 70% of your queries are
>
ones accessing all transactions for products regradless of the time those transactions happened
>
But then you add that you are
>
Considering adding extra column to this DATE and range partition this to allow us to drop old partitions every year
>
How can you drop old partitions every year if 70% of the queries need product data 'regardless of the time those transactions happened'?
What is the actual 'datetime' requirement'? And what is your definition of 'a particular week'? Does a week cross Month and Year boundaries? Does the requirement include MONTHLY, QUARTERLY or ANNUAL reporting?
Those 'boundary' requirements (and the online/offline need) are critical inputs to the best partitioning strategy. A MONTHLY partitioning strategy means that for some weeks two partitions are needed. A weekly partitioning strategy means that for some months two partitions are needed. Which queries are run more frequently weekly or monthly?
Why did you mention sub-partitioning? What benefit do you expect or what problem are you trying to address? And why hash? Hash partitioning guarantees that ALL partitions will be needed for predicate-based queries since Oracle can't prune partitions when it evaluates execution plans.
The biggest performance benefit of partitioning is when the partition keys used have a high correspondence with the filter predicates used in the queries that you run.
Contrarily the biggest management benefit of partitioning is when you can use interval partitioning to automate the creation of new partitions (and subpartitions if used) based solely on the data.
The other big consideration for partitioning, for both performance and management, is the use of global versus local indexes. WIth global indexes (e.g. a global primary key) you can't just drop a partition in isolation; the global primary key needs to be maintained by deleting the corresponding index entries.
On the other hand if your partition key includes the primary key column(s) then you can use a local index for the primary key. Then partition maintenance (drop, exchange) is very efficient.

Will there performance improvement over separate tables vs single table with multiple partitions?

Will there performance improvement over separate tables vs single table with multiple partitions? Is advisable to have separate tables than having a single big table with partitions? Can we expect same performance having single big table with partitions? What is the recommendation approach in HANA?

Suren,
first off a friendly reminder: SCN is a public forum and for you as an SAP employee there are multiple internal forums/communities/JAM groups available. You may want to consider this.
Concerning your question:
You didn't tell us what you want to do with your table or your set of tables.
As tables are not only storage units but usually bear semantics - read: if data is stored in one table it means something else than the same data in a different table - partitioned tables cannot simply be substituted by multiple tables.
Looked at it on a storage technology level, table partitions are practically the same as tables. Each partition has got its own delta store & can be loaded and displaced to/from memory independent from the others.
Generally speaking there shouldn't be too many performance differences between a partitioned table and multiple tables.
However, when dealing with partitioned tables, the additional step of determining the partition to work on is always required. If computing the result of the partitioning function takes a major share in your total runtime (which is unlikely) then partitioned tables could have a negative performance impact.
Having said this: as with all performance related questions, to get a conclusive answer you need to measure the times required for both alternatives.
- Lars

Installing Lion clean on hard drive with multiple partitions

I have a spring 2008 24" iMac running Snow Leopard.
I am about to put a new 2TB hard drive in it and after I do that I want to do a clean install of Lion on it.
I do not want to upgrade my Snow Leopard install to Lion. I will keep it on my back up drive as a fallback incase of serious workflow incompatiblities with the new OS.
For my workflow I create and use multiple partitions (Mac OS, Windows and multiple HFS+ for data) on my hard drive and I have seen that Lion creates it's own hidden recovery partition as well for the recovery functionality.
My questions are:
1) Will I have issues running Lion on a partition on a hard drive with multiple partitions that have different file systems?
2) If I install Lion into one of these partitions will it create it's recovery partition within the space of the partition it is being installed into?
3) I will be creating a clean install by downloading Lion using the App Store and then burning an installer DVD using instructions I found elsewhere and then using that to do the install on the new drive. Is that the best route to take?
All my current data I will have on a backup external hard drive and after I complete the Lion install on the new larger drive I will manually reinstall all my software and move my data back from my backup drive to the new drive one partition at a time except of course for OS partition. I keep all my real user data outside of that partition anyway.

I believe this article answers most of your questions.
http://support.apple.com/kb/HT4718
or possibly
http://support.apple.com/kb/HT4649
You will most likely run into the error message that "Some features of Mac OS X Lion are not supported for the disk" if you have multiple partitions set up, especially if they were not set up using Bootcamp and/or have serveral different file systems.
You can confirm that the Recovery Partition will not be installed by checking Disk Utility for your current partition map scheme.
This is most definitely not the end of the world as it is quite easy to create an external Recovery disk.
1) No, you shouldn't have issues running Lion, but Recovery HD will not be created.
2) No, and in your case it doesn't sound like it will be installed on your internal drive at all.
3) Yes. If you begin with an empty partition, then install Lion that would be considered a clean install.
Hope that helps.
Autumn

Multiple Weblogic nodes on single Windows server - Dispatcher question?

Hi All,
My experience is with other J2EE web servers (SAP's Netweaver predominantly) and typical installations on this platform include the installation of a dispatcher J2EE node which balances load across potentially multiple J2EE nodes on a single server. Does Weblogic have a similar set-up, as it appears when you create multiple nodes in Weblogic, you need to set-up a load balancer to achieve this same effect (that is installed by default on other platforms).
Obviously creating a single node is pretty useless for the majority of production installations; hence what is the recommended option (without setting up a dedicated load balancer) to achieve this on a single (albeit large) server?
Thanks,
Matt

Hi,
I had just remembered another option, we can set up weblogic as webserver which does the load balancing. Below are the two ways you can do that.
1. While creating the domain using "config.sh" you will get an option to set up "weblogic server as webserver". This option is enabled only on condition "cluster must be created, and few managed servers needs to assigned to cluster". For example if we create 3 managed servers and we assign 2 managed to cluster then "Http Proxt screen" would be enabled where remaining server can be set up as "http proxy webserver".
2. Below is the lengthy procedure.
a. Create a standalone weblogic server.
b. We need to create a dummy war, which just contains below "web.xml" adn "weblogic.xml", let me know if you have trouble creating this war file.
Contents of "web.xml"
<?xml version='1.0' encoding='UTF-8'?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<servlet>

<servlet-name>HttpClusterServlet</servlet-name>
<servlet-class>weblogic.servlet.proxy.HttpClusterServlet</servlet-class>
<init-param>
<param-name>WebLogicCluster</param-name>
<param-value>127.0.0.1:7003|127.0.0.1:7005|127.0.0.1:7007</param-value>
</init-param>
</servlet>

<servlet-mapping>
<servlet-name>HttpClusterServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HttpClusterServlet</servlet-name>
<url-pattern>*.jsp</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HttpClusterServlet</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HttpClusterServlet</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HttpClusterServlet</servlet-name>
<url-pattern>browsestore</url-pattern>
</servlet-mapping>
</web-app>
Contents of "weblogic.xml" . This deployment descriptor is used to deploy this application as "default application".
<?xml version='1.0' encoding='UTF-8'?>
<weblogic-web-app xmlns="http://www.bea.com/ns/weblogic/90" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

<context-root>/</context-root>
</weblogic-web-app>
c. Now deploy this war file to standalone weblogic server.
d. Lets suppose you had deploy application "vas.war" on managed server "VASMS1", "VASMS2", which are running on host "vasunix1" and "vasunix2" on ports 8002. You can access the application directly "http://vasunix1:8001/vas" or "http://vasunix2:8002/vas".
Now since you had set up "http proxy webserver" which does the load balancing, you can directly hit "http proxy webserver" url and it redirects traffic to "VASMS1" or "VASMS2". Lets suppose "Http proxy webserver" "VASMS3" is running on "vasunix1" on port "8003". You can access the application "http://vasunix1:8003/vas", this request is directed to MS1 or MS2.
I hope this is what you are looking for. Have great day.
Vijay Bheemineni.

Multiple partitions on a ox s server raid 1 system

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