Help! (Data Recovery best practices question)

Recently my fiancé's Macbook (first White model that used an Intel chipset) running 10.6.2 began to behave strange (slow response time, hanging while applications launch, etc). I decided to take an old external USB HD I had lying around and format it on my MBP in order to time machine her photo's and itunes library. Time machine would not complete a backup and I could not get any of the folders to copy through finder(various file corrupt errors). I assumed it could be a permission issue so I inadvertantly fired up my 10.5 disk and did a permission repair. Afterwards the disk was even more flaky (which I believe was self inflicted when I repaired with 10.5).
I've since created a 10.6.2 bootable flash key and went out and bought Disk Warrior (4.2). I ran a directory repair and several disk util repairs but was still unable to get the machine to behave properly (and unable to get time machine to complete). Attempting to run permission repairs while booted to USB or the Snow Leopard install disk resulted in it hanging at the '1 minute remaining' for well over an hour. My next step was to re-install Snow Leopard but the install keeps failing after the progress bar completes.
As it stands now the volume on the internal HD is not bootable and I'm running off my usb key boot drive using 'CP -R *' in terminal to copy her user folder onto the external USB hard drive. It seems to be working, but it's painfully slow (somewhere along the lines of maybe 10 meg per half an hour with 30gb to copy) I'm guessing this speed has to do with my boot volume running off a flash drive.
I'm thinking of running out and grabbing a firewire cable and doing a target boot from my MBP hoping that that would be a lot faster than what I'm experiencing now. My question is, would that be the wisest way to go? My plan of action was to grab her pictures and music then erase and reformat the drive. Is it possible that I could try something else with Disk Warrior? I've heard a lot of good things about it but I fear that I did a number on it when I accidently ran 10.5 permission repair on the volume.
Any additional help would be appreciated as she has years of pictures on there that I'd hate to see her loose.

That sounds like a sensible solution, although you need not replace the original drive. Install OS X on the external drive, boot from it and copy her data. Then erase her drive and use Disk Utility's Restore option to clone the external drive to the internal drive. If that works then she should continue using the external drive as a backup so the next time this happens she can restore from the backup.
For next time: Repairing permissions is not a troubleshooting tool. It's rarely of any use and it does not repair permissions in a Home folder. If a system is becoming unresponsive or just slower then there's other things you should do. See the following:
Kappy's Personal Suggestions for OS X Maintenance
For disk repairs use Disk Utility. For situations DU cannot handle the best third-party utilities are: Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption; Disk Warrior 4.x is now Intel Mac compatible. TechTool Pro provides additional repair options including file repair and recovery, system diagnostics, and disk defragmentation. TechTool Pro 4.5.1 or higher are Intel Mac compatible; Drive Genius is similar to TechTool Pro in terms of the various repair services provided. Versions 1.5.1 or later are Intel Mac compatible.
OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) If this isn't the case, then an excellent solution is to download and install a shareware utility such as Macaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts had been significantly reduced in Tiger and Leopard. These utilities have limited or no functionality with Snow Leopard and should not be installed.
OS X automatically defrags files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive. As for virus protection there are few if any such animals affecting OS X. You can protect the computer easily using the freeware Open Source virus protection software ClamXAV. Personally I would avoid most commercial anti-virus software because of their potential for causing problems.
I would also recommend downloading the shareware utility TinkerTool System that you can use for periodic maintenance such as removing old logfiles and archives, clearing caches, etc. Other utilities are also available such as Onyx, Leopard Cache Cleaner, CockTail, and Xupport, for example.
For emergency repairs install the freeware utility Applejack (not compatible with Snow Leopard.) If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the commandline. Note that AppleJack 1.5 is required for Leopard. AppleJack is not compatible with Snow Leopard.
When you install any new system software or updates be sure to repair the hard drive and permissions beforehand. I also recommend booting into safe mode before doing system software updates.
Get an external Firewire drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
1. Retrospect Desktop (Commercial - not yet universal binary)
2. Synchronize! Pro X (Commercial)
3. Synk (Backup, Standard, or Pro)
4. Deja Vu (Shareware)
5. Carbon Copy Cloner (Donationware)
6. SuperDuper! (Commercial)
7. Intego Personal Backup (Commercial)
8. Data Backup (Commercial)
9. SilverKeeper 2.0 (Freeware)
10. MimMac (Commercial)
11. Tri-Backup (Commercial)
Visit The XLab FAQs and read the FAQs on maintenance, optimization, virus protection, and backup and restore.
Additional suggestions will be found in Mac Maintenance Quick Assist.
Referenced software can be found at www.versiontracker.com and www.macupdate.com.

Similar Messages

Best Practices Question: How to send error message to SSHR web page.

Best Practices Question: How to send error message to SSHR web page from custom PL\SQL procedure called by SSHR workflow.
For the Manager Self-Service application we’ve copied various workflows which were modified to meet business needs. Part of this exercise was creating custom PL\SQL Package Procedures that would gather details on the WF using them on custom notification sent by the WF.
What I’m looking for is if/when the PL\SQL procedure errors, how does one send an failure message back and display it on the SS Page?
Writing information into a log or table at the database level works for trouble-shooting, but we’re looking for something that will provide the end-user with an intelligent message that the workflow has failed.
Thanks ahead of time for your responses.
Rich

We have implemented the same kind of requirement long back.
We have defined our PL/SQL procedures with two OUT parameters
1) Result Type (S:Success, E:Error)
2) Result Message
In the PL/SQL procedure we always use below construct when we want to raise any message
hr_utility.set_message(APPL_NO, 'FND_MESSAGE_NAME');
hr_utility.raise_error;
In Exception block we write below( in successful case we just set the p_result_flag := 'S';)
EXCEPTION
WHEN APP_EXCEPTION.APPLICATION_EXCEPTION THEN
p_result_flag := 'E';
p_result_message := hr_utility.get_message;
WHEN OTHERS THEN
p_result_flag := 'E';
p_result_message := hr_utility.get_message;
fnd_message.set_name('PER','FFU10_GENERAL_ORACLE_ERROR');
fnd_message.set_token('2',substr(sqlerrm,1,200));
fnd_msg_pub.add;
p_result_message := fnd_msg_pub.get_detail;
After executing the PL/SQL in java
We have written some thing similar to
orclStmt.execute();
OAExceptionUtils.checkErrors (txn);
String resultFlag = orclStmt.getString(provide the resultflag bind no);
if ("E".equalsIgnoreCase(resultFlag)){
String resultMessage = orclStmt.getString(provide the resultMessage bind no);
orclStmt.close();
throw new OAException(resultMessage, OAException.ERROR);
It safely shows the message to the user with all the data in the page.
We have been using this construct for a long time for all our projects. They are all working as expected.
Regards,
Peddi.

SAP Adapter Best Practice Question for Deployment to Clustered Environment

I have a best practices question on the iway Adapters around deployment into a clustered environment.
According to the documentation, you are supposed to run the installer on both nodes in the cluster but configure on just the first node. See below:
Install Oracle Application Adapters 11g Release 1 (11.1.1.3.0) on both machines.
Configure a J2CA configuration as a database repository on the first machine.
Perform the required changes to the ra.xml and weblogic-ra.xml files before deployment.
This makes sense to me because once you deploy the adapter rar in the next step it the appropriate rar will get staged and deployed on both nodes in the cluster.
What is the best practice for the 3rdParty adapter directory on the second node? The installer lays it down with the adapter rar and all. Since we only configure the adapter on node 1, the directory on node 2 will remain with the default installation files/values not the configured ones. Is it best practice to copy node 1's 3rdParty directory to node 2 once configured? If we leave node 2 with the default files/values, I suspect this will lead to confusion to someone later on who is troubleshooting because it will appear it was never configured correctly.
What do folks typically do in this situation? Obviously everything works to leave it as is, but it seems strange to have the two nodes differ.

What is the version of operating system. If you are any OS version lower than Windows 2012 then you need to add one more voter for quorum.
Balmukund Lakhani
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Best practice question -- copy container, assemble it, build execution plan

So, this is a design / best practice question:
I usually copy containers as instructed by docs
I then set the source system parameters
I then generate needed parameters / assemble the copied container for ALL subject areas present in the container
I then build an execution plan JUST FOR THE 4 SUBJECT AREAS and build the execution plan and set whatever is needed before running it.
QUESTION - When i copy the container, should i delete all not needed subject areas out of it or is it best to do this when building the execution plan? I am basically trying to simplify the container for my own sake and have the container just have few subject areas rather than wait till i build the execution plan and then focus on few subject areas.
Your thoughts / clarifications are appreciated.
Regards,

Hi,
I would suggest that you leave the subject areas and then just don't include them in the execution plan. Otherwise you have the possibility of running into the situation where you need to include another subject area in the future and you will have to go through the hassle of recreating it in your SSC.
Regards,
Matt

SAP Adapter Best Practice Question for Migration of Channels

I have a best practice question on the SAP adapter when migrating an OSB project from one environment (DEV) to another (QA).
If my project includes an adapter channel that (e.g., Inbound SAP Proxy listening on a channel), how do I migrate that project to another environment if the channel in the target environment is different.
I tried using the search and replace mechanism in the sbconsole, but it doesn't find the channel name in the jca and wsdl files.
What is the recommended way to migrate from one environment to the other when the channel name changes?

I have a best practice question on the SAP adapter when migrating an OSB project from one environment (DEV) to another (QA).
If my project includes an adapter channel that (e.g., Inbound SAP Proxy listening on a channel), how do I migrate that project to another environment if the channel in the target environment is different.
I tried using the search and replace mechanism in the sbconsole, but it doesn't find the channel name in the jca and wsdl files.
What is the recommended way to migrate from one environment to the other when the channel name changes?

Vmware Data recovery Best pratices

Hi,
I am looking for Vmware Data recovery Best pratices, I find everywhere on the internet the following link : http://viops.vmware.com/home/docs/DOC-1551
But this is not a valid link and I can't find it anywhere...
Thanks

Hi,
I am looking for Vmware Data recovery Best pratices, I find everywhere on the internet the following link : http://viops.vmware.com/home/docs/DOC-1551
But this is not a valid link and I can't find it anywhere...
Thanks

BEST PRACTICE QUESTION: XI or direct R/3 RFC?

We are creating an interface from R/3 to an externally facing (internally built) website.
Question: What is the best practice defining whether or not we should pivot thru XI? This is a single interface that will not be reused; there would be no mapping within XI; and the call must be real-time and syncronous.
Thanks much for your knowledge/assistance.

Hi,
the best practice is :
don't use XI for sync interfaces
but if the flow from RFC to this website will be very ocasional
and you don't want to play with receving RFC data on the website
then you can use it just to help yourself with an adapter
Regards,
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Unicode Migration using National Characterset data types - Best Practice ?

I know that Oracle discourages the use of the national characterset and national characterset data types(NCHAR, NVARCHAR) but that is the route my company has decide to take and I would like to know what is the best practice regarding this specifically in relation to stored procedures.
The database schema is being converted by changing all CHAR, VARCHAR and CLOB data types to NCHAR, NVARCHAR and NCLOB data types respectively and I would appreciate any suggestions regarding the changes that need to be made to stored procedures and if there are any hard and fast rules that need to be followed.
Specific questions that I have are :
1. Do CHAR and VARCHAR parameters need to be changed to NCHAR and NVARCHAR types ?
2. Do CHAR and VARCHAR variables need to be changed to NCHAR and NVARCHAR types ?
3. Do string literals need to be prefixed with 'N' in all cases ? e.g.
in variable assignments - v_module_name := N'ABCD'
in variable comparisons - IF v_sp_access_mode = N'DL'
in calls to other procedures passing string parameters - proc_xyz(v_module_name, N'String Parameter')
in database column comparisons - WHERE COLUMN_XYZ = N'ABCD'
If anybody has been through a similar exercise, please share your experience and point out any additional changes that may be required in other areas.
Database details are as follows and the application is written in COBOL and this is also being changed to be Unicode compliant:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
NLS_CHARACTERSET = WE8MSWIN1252
NLS_NCHAR_CHARACTERSET = AL16UTF16

##1. while doing a test convertion I discovered that VARCHAR paramaters need to be changed to NVARCHAR2 and not VARCHAR2, same for VARCHAR variables.
VARCHAR columns/parameters/variables should not by used as Oracle reserves the right to change their semantics in the future. You should use VARCHAR2/NVARCHAR2.
##3. Not sure I understand, are you saying that unicode columns(NVARCHAR2, NCHAR) in the database will only be able to store character strings made up from WE8MSWIN1252 characters ?
No, I meant literals. You cannot include non-WE8MSWIN1252 characters into a literal. Actually, you can include them under certain conditions but they will be transformed to an escaped form. See also the UNISTR function.
## Reason given for going down this route is that our application works with SQL Server and Oracle and this was the best option
## to keep the code/schemas consistent between the two databases
First, you have to keep two sets of scripts anyway because syntax of DDL is different between SQL Server and Oracle. There is therefore little benefit of just keeping the data type names the same while so many things need to be different. If I designed your system, I would use a DB-agnostic object repository and a script generator to produce either SQL Server or Oracle scripts with the appropriate data types or at least I would use some placeholder syntax to replace placeholders with appropriate data types per target system in the application installer.
## I don't know if it is possible to create a database in SQL Server with a Unicode characterset/collation like you can in Oracle, that would have been the better option.
I am not an SQL Server expert but I think VARCHAR data types are restricted to Windows ANSI code pages and those do not include Unicode.
-- Sergiusz

Best Practice Question

I have 3 Areas for my DWH
The first area is Staging then validation and core
Staging is just do load date from the source systems
validation is to validate data (every city has to have a countrie ....)
core is my DWH shema.
The First step in ETL is to load the data from core to validation, let's say my GEO_DIM Dimension goes to Countries, Cities and Regions in core. Additionaly I build a CRC SUM when I downlaod from Core to Validation and store the CRC Checksum in a Staging table.
The second step is to load target from the source systems to staging, but only those date that are non equal to the previous downloadet CRC schecksum, so only changed or new data going to staging.
The third step is do load that new/changed data from staging to core and proof some dependences. It's just validation.
My Question is, what is the best practic to bring three tables (Countries, cities and region) to one Dimension
thanks and regards
Andreas

Andreas,
I guess the correct is depends... Without kidding, are you planning to use a flat star table for this dimension? If that is the case you would be joining the sources together and loading this into the table.
Now this sounds way to simple, so I guess there is something more to the question...
Jean-Pierre

Informatica and Essbase Best Practice questions

We now have the Informatica adapter for Essbase installed and working. We have been able to get Informatica to upload data successfully. Now I have a few questions that I have not been able to find answers to in any documentation or forums for Informatica or Essbase. I have submitted these same questions to the Informatica Support but thought I would also post the questions here to see if many folks are using Informatica against Essbase.
We are using:
Informatica 8.6.1 (Linux)
Essbase 11.1.1.3 (Windows 2003)
1) I can see in Informtica that when we load data to Essbase (Target) it gives me the option to run a calc script AFTER it loads the data. However, if I need to run a Calc script BEFORE the load to Essbase (Target) what is the best practice? The work around I have found was to add the same session twice and for the 1st instance select the option to 'ONLY RUN THE CALC SCRIPT' on the mapping tab. The problem with this is the log shows that it will still run the query against the Source tables. This will impact run times and double to querying against the Source database. What is the Best Practice and proper way to build the workflow to Run a Calc Script BEFORE the load?
2)Since you do not see the list of Calc Scripts for Essbase in Informatica (you have to manually type the Calc name), If I want to run the 'Default' calc for Essbase what is the syntax to run the 'Default' Calc Script? Tried 'Default' but didn't seem to work.
3)I have other tasks in Essbase I want to do before actually having Informatica load the data. I would like to run the MAXL commands via a Command task. What is the Best Practice for doing this and the syntax to run MAXL commands in a Command Task in Informatica? I previously had Shell scripts built on the Informatica server that would be kicked off within Informatica, but we are trying to move away from shell scripts and instead have the scripting codes IN the workflows/sessions to make it easier to review the code and follow the logic, rather than having to find the scripts and open each of them.
Any assistance you have with the two products working together I would GREATLY appreciate it!
Robert

AS i know addUser(User user){ ... } is much more useful for several reasons:
1.Its object oriented
2.its easy to write , because if Object has many parameters its very painful to write method with comma seperated parameters

Data access best practice

Oracle web site has an article talking about the 9iAS best practice. Predefining column type in the select statement is one of topics. The detail is following.
3.5.5 Defining Column Types
Defining column types provides the following benefits:
(1) Saves a roundtrip to the database server.
(2) Defines the datatype for every column of the expected result set.
(3) For VARCHAR, VARCHAR2, CHAR and CHAR2, specifies their maximum length.
The following example illustrates the use of this feature. It assumes you have
imported the oracle.jdbc.* and java.sql.* interfaces and classes.
//ds is a DataSource object
Connection conn = ds.getConnection();
PreparedStatement pstmt = conn.prepareStatement("select empno, ename, hiredate from emp");
//Avoid a roundtrip to the database and describe the columns
((OraclePreparedStatement)pstmt).defineColumnType(1,Types.INTEGER);
//Column #2 is a VARCHAR, we need to specify its max length
((OraclePreparedStatement)pstmt).defineColumnType(2,Types.VARCHAR,12);
((OraclePreparedStatement)pstmt).defineColumnType(3,Types.DATE);
ResultSet rset = pstmt.executeQuery();
while (rset.next())
System.out.println(rset.getInt(1)+","+rset.getString(2)+","+rset.getDate(3));
pstmt.close();
Since I'm new to 9iAS, I'm not sure whether it's true that 9iAS really does an extra roundtrip to database just for the data type of the columns and then another roundtrip to get the data. Anyone can confirm it? Besides the above example uses the Oracle proprietary information.
Is there any way to trace the db activities on the application server side without using enterprise monitor tool? Weblogic can dump all db activities to a log file so that they can be reviewed.
thanks!

Dear Srini,
Data level Security is not at all issue for me. Have already implement it and so far not a single bug in testing is caught.
It's about object level security and that too for 6 different types of user demanding different reports i.e. columns and detailed drill downs are different.
Again these 6 types of users can be read only users or power users (who can do ad hoc analysis) may be BICONSUMER and BIAUTHOR.
so need help regarding that...as we have to take decision soon.
thanks,
Yogen

Bean best practice question

Simple questions (hopefully), I know how to code this but just want some advice on the best way to do the following:
1. User enters data into HTML form and submits
2. Some Java at the backend grabs these details and emails them off somewhere
I am thinking of doing the following, but whats the best way?
1. HTML form submits and data is sent directly to a JavaBean (FormBean.java)
2. FormBean.java contains standard getters/setters but also contains a method called sendMail(), is this bad practice? Do I need a second Bean sendMail.java? Or is this completely the wrong way to do things i.e. should I do this entirely in a servlet with only 1 bean to grab the data (FormBean) and then access from servlet?
Just a bit confused on whats best practice for this stuff?
Thanks!

2. FormBean.java contains standard getters/setters but also contains a method called sendMail(), is this bad practice? Do I need a second Bean sendMail.java? A better approach is this way
a) Have all the form data in the form bean
b) Write sendMail in a all together different class, as action.
c) Send the form bean as a parameter to sendMail for processing and sending an email
This way your sendMail() will become a kind of a service. Tomorrow you might have some other data, which you will have to send it in an email. In that case, you just reuse sendMail() method. Otherwise, if you have sendMail() in form bean itself, then if there are many form beans, then you would have to write sendMail() in every form bean, which is a bad practice. One principle of OOAD is to separate the functionality, which is redundant in your classes and make it as a separate module. If there are changes to the sendMail() functionality then, by having it in one module, you only have to change it at one place.
Or is this completely the wrong way to do things i.e. should I do this entirely in a servlet with only 1 bean to grab the data (FormBean) and then access from servlet?You can have a servlet which acts like a controller, which receives the request parameters, constructs the form bean and invokes appropriate Action (in your case sendMail()). This is same as an MVC framework. Instead of you re-inventing the wheel to create a servlet controller, form bean, action etc. You could use one of the several MVC frameworks available in the market, such as Struts or Spring MVC.

Design Pattern / Best Practice Question

Hi,
I have been using Flex for a while now, but there is a
scenario which I still have not found a solution I'm entirely happy
with. I'm wondering if anyone else out there might have suggestions
on a design pattern or best practice.
Suppose I have a view which depends on model data which
resides in some back end systems. That model data may or may not
have been loaded (e.g. via a web service or remote object call) at
the time the view is displayed.
I don't know if the user will ever visit this part of the
application so I would prefer to defer retrieval of the data until
the user actually navigates to this view. Or I want to retrieve the
data each time the view is displayed because the data is dynamic
and could change between one presentation of the view and the next.
Because the data comes from several systems, I cannot simply
make one service call and display the view when it completes and
all the data is available. I need to call several services which
could complete in any order but I only want to display my view
after I know all of them have completed and all of the model data
is available. Otherwise, I can present the user an incomplete view
(e.g. some combo boxes are empty until the corresponding service
call to get the data completes).
The solution I like best so far is to dispatch a single event
(I am using Cairngorm) handled by a single command which acts as
the caller and responder for all of the services. This command then
remembers which responses it has received and dispatches another
event to navigate to the view once all the results have returned.
If the services being called are used in different
combinations on different screens, this results in proliferation of
events and commands. An event and command for each service and
additional events and commands to bundle the services and the
handling of their responses in the right combinations for each of
the views.
Another approach is to have some helper class listen for all
of the model changes and only display the view when the model
enters some state that is acceptable. It is sometimes difficult to
determine just by looking at the model whether it is in the right
state (e.g. how can I tell that a collection is the new collection
that should just have been requested versus an old one lingering
from a previous call). The logic required can get kind of
convoluted and brittle.
Basically, all of the solutions I've come up with so far seem
less than ideal and a little hackish. I keep thinking there is some
elegant solution out there that I am just missing ... but so far,
no luck finding it. Thoughts?
Thanks.
Bill

i think a service class is right - to coordinate your calls.
i would have 1 event per call (so you could listen to individual
responses if you wanted to).
then i would use a flag. if you want to check for staleness,
you would probably want two objects to map your service flag to
lastRequested and lastCompleted. when you check, check if it's
completed, and if it's not stale and that your lastRequested is
less than lastCompleted (meaning that you're not currently waiting,
i.e. you've returned since making a request). then make the request
and update your lastRequested.
here's a snippet of what i mean.
./paul
public static const SVC1_LOADED:int = 1;
public static const SVC2_LOADED:int = 2;
public static const SVC3_LOADED:int = 4;
public static const SVCALL_LOADED:int = 7;
private var completedFlag:int = 0;
then each call would have it's own callback.
private function onSvc1Complete( evt:Event):void {
completedFlag |= SVC1_LOADED;
lastCompleted[ SVC1_LOADED ] = getTimer();
dispatchEvent( new Event("svc1complete") );
checkDone();
private function checkDone():void{
if( completedFlag == SVCALL_LOADED )
dispatchEvent(new Event( "allLoaded" ));

HyperV 2012 best practice question (storage of guests)

I was reading this post:
http://blogs.technet.com/b/askpfeplat/archive/2013/03/10/windows-server-2012-hyper-v-best-practices-in-easy-checklist-form.aspx
and I saw two things, one where it says fiber channel is not support and one where is says loopback is not support?
so my question is for a best practice, would local storage (say a local attached raid 10) be considered best practice? or a shared
san lun? and if a san, would virtual stuff like IBMs SVC be supported?

Using a SoFS with SMB3 as a Storage for Hyper-V and SQL Server/Clusters is Microsoft Nr.1 and you will see more and more push for that Design in every next Version.
The TOP Features for me in that Combo is, you get 100% of all Features on Day One when new Version comes out, within Microsoft SMB 3.x are some realy sexy Things in it and you can use all the Standard Ethernet Stuff yu have and know already for years. If
you Need super Speed you can do that with some RDMA Cards, still Ethernet :-) and if you do a Live Migration between any Combo of Clusters and Single Nodes you never Need to move the Data and Config Files :-) they always stay on
\\SoFS\VMs :-)
All Information you need are on http://smb3.info , Jose, my Mr. SoFS collects and blogs about all Features and Step-by-Step Guides to test and prove that even on one sinlge Notebook, very very cool.
As a Backend fot the SoFs you have many choices, from the new Wave of JBODs togehter with Storage Spaces up to the old Style SAN Boxes with or without Special Features. Allways check the Windows Server Catalog for supported Confgs, specially on the JBOD
Side, make sure you get one with R2 Support und also with SES Support (SCSI Enclosure Services ). Jose also Blogs about that Topics very well.
https://blogs.technet.com/b/storageserver/archive/2013/10/19/storage-spaces-jbods-and-failover-clustering-a-recipe-for-cost-effective-highly-available-storage.aspx
http://www.windowsservercatalog.com/results.aspx?&chtext=&cstext=&csttext=&chbtext=&bCatID=1642&cpID=0&avc=10&ava=0&avq=0&OR=1&PGS=25&ready=0
Hyper-V Cluster up to 64 Nodes and SoFS up to 8 Nodes depending on your Scaling Needs and having Storage splitted over separat DataCenters should be a good start :-)
Just let me know of you need some Advice after doing a Design Session.
Udo

Best Practice question - null or empty object?

Given a collection of objects where each object in the collection is an aggregation, is it better to leave references in the object as null or to instantiate an empty object? Now I'll clarify this a bit more.....
I have an object, MyCollection, that extends Collection and implements Serializable(work requirement). MyCollection is sent as a return from an EJB search method. The search method looks up data in a database and creates MyItem objects for each row in the database. If there are 10 rows, MyCollection would contain 10 MyItem objects (references, of course).
MyItem has three attributes:
public class MyItem implements Serializable {
    String name;
    String description;
    MyItemDetail detail;
}When creating MyItem, let's say that this item didn't have any details so there is no reason to create MyitemDetail. Is it better to leave detail as a null reference or should a MyItemdetail object be created? I know this sounds like a specific app requirement, but I'm looking for a best practice - what most people do in this case. There are reasons for both approaches. Obviously, a bunch of empty objects going over RMI is a strain on resources whereas a bunch of null references is not. But on the receiving end, you have to account for the MyItemDetail reference to be null or not - is this a hassle or not?
I looked for this at [url http://www.javapractices.com]Java Practices but found nothing.

I know this sounds like a specific apprequirement,
, but I'm looking for a best practice - what most
people do in this case. It depends but in general I use null.Stupid.Thanks for that insightful comment.
>
I do a lot of database work though. And for that
null means something specific.Sure, return null if you have a context where null
means something. Like for example that you got no
result at all. But as I said before its's best to
keep the nulls at the perimeter of your design. Don't
let nulls slip through.As I said, I do a lot of database work. And it does mean something specific. Thus (in conclusion) that means that, in "general", I use null most of the time.
Exactly what part of that didn't you follow?
And exactly what sort of value do you use for a Date when it is undefined? What non-null value do you use such that your users do not have to write exactly the same code that they would to check for null anyways?

Help! (Data Recovery best practices question)

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