Best practices to create a sandbox

Similar Questions

• What are the best practices for creating only time data types, and not the Date

  Hi gurus,

  We use 12 c DB and we have a requirement to create the column with datatype of time only, if someone please describe what are the best practices for the creation of this.

  I would strongly appreciate ideas and suggestions.

  Kind regards
  Ranjan

  Hello

  How do you intend to use the time?

  If you are going to combine with DATEs or timestamps from a other source, then an INTERVAL DAY TO SECOND or NUMBER may be better.

  Will you need to perform arithmetic operations on time, for example, increase the time to 20%, or take an average?   If so, the NUMBER would be preferable.

  You are just going to display it?  In this case, DAY INTERVAL in SECONDS, DATE or VARCHAR2 would work.

  As Blushadow said, it depends.

• What is the best practice for creating Volumes

  Hello.

  I have storage SAN Dell Equiliser PS 6000 model. configured with RAID 50. and FEPs 4TB

  1. I want to present the server 2 hosts 2 TB and 2 TB Volumes. is it good to put it this way or

  2. can I submit each Volume separately to each Vertual Machine... ???

  My friends said that method 1 is good practice.

  3 and I use the IP address of the host to present volumes it's correctly.

  4. If I use host NIC to present Volumes. so can I use the same NETWORK card like switch virtual or not.

  Please give me the urgency to answer.

  Thank you.

  Hello

  Re: 1

  If you have a table of 4 TB, use all the available space on the table.  This will reduce performance long-term.  The table needs unallocated free space.  If you use replication or snapshots.

  Re: 2

  If you do not use a file system capable of cluster, then do not connect several servers the same volumes.  Each server has access to its own volume.  You can connect either using the hypervisor (AKA Raw Device mapped LUN) or directly from the virtual machine.  Which is known as the "Storage Direct".  If your server is running Windows, with this configuration, you can use the Host Integration Toolkit / edition of Microsoft (HIT / ME) to provide improved MPIO and better integration with SharePoint, MS SQL and MS Exchange.

  Addresses using IP is fine to control access.  It's a personal preference.  It is possible to make a mistake and allow multiple access to the server when using just IP addresses.  Or an address can be spoofed as well.  A safer option is to use a CHAP username / password combination.

  About your last two questions, I'm not sure that I completely understand.

  The iSCSI network must be on its own.  If each virtual machine or a physical host linking would have their own network interface cards.  Whether it's virtual network adapters or the physical network interface cards. With virtual switches, it should have devoted HW NIC and iSCSI traffic.  But those that can be shared by multiple virtual machines.

  Kind regards

  Don

• Best practices to create diagrams for mounting of the EMP

  Hi all

  What is advised to create patterns for EMP installation and configuration if you use Oracle for EMP data.

  1. create the dedicated tablespace and table Temp space dedicated for each schema

  or

  2. create a dedicate tablespace and dedicates space temporary table for all schemas and another separate for HFM schema.

  or

  3. just use default tablespace and a tablespace temp.

  Kind regards

  Dattatray Mate

  It's like I said products like FM, FDMEE, DRM and perhaps RAF depending on what happens to be stored should be considered for there own tablespace, other products, not so and can be combined in say a tablespace.

  These are all just guidelines and there is no good answer.

  See you soon

  John

• Server Windows 2012 - best practices to create the template

  On Windows 2012, has anyone created models for this OS (VM)?

  If so, what services did you remove, disable or install or what changes did you make to create a model of 'Base '?

  Any ideas or suggestions?

  Thank you

  We have plenty of 2012, immediately, but I have bookmarked the blog post below it... looks pretty good

  http://www.Boche.net/blog/index.php/2012/08/16/Microsoft-Windows-Server-2012-tips/

• Best practices for creating data warehouses

  I have 10 iSCSI LUN (all on the same device), each 1.8 size to which I want to introduce ESXi to create data warehouses.  Are there all recommended for how I divide these LUNS to the top, or should I just do a giant data store?  Maybe there are performance factors to consider here?

  If I had to do 10 1.8 data stores to I can see a problem on the road when I need to expand a vmdk but cannot because there is not enough free space on the data store, it would be less of a problem if I had a giant data store at first.

  Thank you.

  First of all, it's one of those type questions "how long is a piece of string.

  It depends of course of the VMDK number you're going to be running, the available storage, the type of storage, IO, storage, type of virtual machines etc. etc. etc.,

  Things to consider are for example, you have a storage that deduplication and storage cost a major factor (and so on)
  Of course. . almost always, a cost reduction is equivalent to a drop in performance.

  In any case, a rule very loose, I have (in most cases), among which I size LUN somewhere between 400 and 750 GB and rarely (if ever) have more than 30 VMDK per LUN.

  Almost always, redirect the request to the following resources:

  first of all, the maximum rates of configuration:
  http://www.VMware.com/PDF/vSphere4/R40/vsp_40_config_max.PDF

  http://www.gabesvirtualworld.com/?p=68
  http://SearchVMware.TechTarget.com/Tip/0, 289483, sid179_gci1350469, 00.html
  http://communities.VMware.com/thread/104211
  http://communities.VMware.com/thread/238199
  http://www.yellow-bricks.com/2009/06/23/vmfslun-size/

  (although Post-andre above covers most of them)

• Best practices for creating a new project from an existing WebHelp

  I am currently working to WebHelp Pro (version RH is 9.0.2.271).

  I have a WebHelp project that currently supports the 2012 version of one of our projects. What I had to do was to create a separate project for 2013, using files of 2012 as a starting point. I couldn't find a way in HR to create a new project by importing an existing project of WebHelp, so I copied the files of 2012 in a new directory, open the project and renamed it.

  What drives this issue is that, as a result of this exercise, all seemed well, for once. However, I recently had to create new topics in the 2012 version. However, when I imported these subjects to the 2013 and compiled project, they disappeared - even if the htm files still appear in the appropriate folder of the file 2013 (when we look at with Windows Explorer).

  After reading a few posts on the forum, I thought I might have corrupted my database by creating the incorrectly the new project-, but if what I've done, it's the wrong way to go about this, I don't know what is the right way. I will be grateful for any suggestion.

  The easy way to do this is to create a copy using Windows Explorer.

  Open the project and click file > rename.

  Then you have your project is ready in 2013.

  See www.grainge.org for creating tips and RoboHelp

  

  @petergrainge

• What is the best practice to create surveys in Eloqua?

  Please provide suggestions.

  Hi Michele

  You have a right to university education Eloqua. Please sign in to Eloqua you and browse around if you have questions, please let us know!

  Kind regards

  Zainab

• Best practices Apple ID

  I help the family members and others with their Apple products. Probably the problem number one revolves around Apple ID I saw users follow these steps:

  (1) share IDs among the members of the family, but then wonder why messages/contacts/calendar entries etc are all shared.

  (2) have several Apple IDs willy-nilly associated with seemingly random devices. The Apple ID is not used for anything.

  (3) forget passwords. They always forget passwords.

  (4) is that I don't really understand. They use an e-mail from another system (gmail.com, hotmail.com, etc) as their Apple ID. Invariably, they will use a different password for their Apple ID than the one they used for other email, so that they are constantly confused about which account to connect to.

  I have looked around for an article on best practices for creating and using Apple ID, but could not find such a position. So I thought I would throw a few suggestions. If anyone knows of a list or wants to suggest changes/additions please feel free. Here are the best practices for normal circumstances, i.e. not cooperate accounts etc.

  1. every person has exactly 1 Apple ID.

  2. do not share Apple ID - share content.

  3. do not use an email address of another counts as your Apple ID.

  4. When you create a new Apple ID, don't forget to complete the secondary information to https://appleid.apple.com/account/manage. It is EXTREMELY important questions your email of relief and security.

  5. the last step is to collect the information that you entered in a document and save to your computer AND print and store it somewhere safe.

  Suggestions?

  I agree with no. 3, it is no problem with using a addressed no iCloud as the primary ID, indeed, depending on where you set up your ID, you may have no choice but to.

• Dell MD3620i connect to vmware - best practices

  Hello community,

  I bought a Dell MD3620i with 2 x ports Ethernet 10Gbase-T on each controller (2 x controllers).
  My vmware environment consists of 2 x ESXi hosts (each with 2ports x 1Gbase-T) and a HP Lefthand (also 1Gbase-T) storage. The switches I have are the Cisco3750 who have only 1Gbase-T Ethernet.
  I'll replace this HP storage with DELL storage.
  As I have never worked with stores of DELL, I need your help in answering my questions:

  1. What is the best practices to connect to vmware at the Dell MD3620i hosts?
  2. What is the process to create a LUN?
  3. can I create more LUNS on a single disk group? or is the best practice to create a LUN on a group?
  4. how to configure iSCSI 10GBase-T working on the 1 Gbit/s switch ports?
  5 is the best practice to connect the Dell MD3620i directly to vmware without switch hosts?
  6. the old iscsi on HP storage is in another network, I can do vmotion to move all the VMS in an iSCSI network to another, and then change the IP addresses iSCSI on vmware virtual machines uninterrupted hosts?
  7. can I combine the two iSCSI ports to an interface of 2 Gbps to conenct to the switch? I use two switches, so I want to connect each controller to each switch limit their interfaces to 2 Gbps. My Question is, would be controller switched to another controller if the Ethernet link is located on the switch? (in which case a single reboot switch)

  Tahnks in advanse!

  Basics of TCP/IP: a computer cannot connect to 2 different networks (isolated) (e.g. 2 directly attached the cables between the server and an iSCSI port SAN) who share the same subnet.

  The corruption of data is very likely if you share the same vlan for iSCSI, however, performance and overall reliability would be affected.

  With a MD3620i, here are some configuration scenarios using the factory default subnets (and for DAS configurations I have added 4 additional subnets):

  Single switch (not recommended because the switch becomes your single point of failure):

  Controller 0:

  iSCSI port 0: 192.168.130.101

  iSCSI port 1: 192.168.131.101

  iSCSI port 2: 192.168.132.101

  iSCSI port 4: 192.168.133.101

  Controller 1:

  iSCSI port 0: 192.168.130.102

  iSCSI port 1: 192.168.131.102

  iSCSI port 2: 192.168.132.102

  iSCSI port 4: 192.168.133.102

  Server 1:

  iSCSI NIC 0: 192.168.130.110

  iSCSI NIC 1: 192.168.131.110

  iSCSI NIC 2: 192.168.132.110

  iSCSI NIC 3: 192.168.133.110

  Server 2:

  All ports plug 1 switch (obviously).

  If you only want to use the 2 NICs for iSCSI, have new server 1 Server subnet 130 and 131 and the use of the server 2 132 and 133, 3 then uses 130 and 131. This distributes the load of the e/s between the ports of iSCSI on the SAN.

  Two switches (a VLAN for all iSCSI ports on this switch if):

  NOTE: Do NOT link switches together. This avoids problems that occur on a switch does not affect the other switch.

  Controller 0:

  iSCSI port 0: 192.168.130.101-> for switch 1

  iSCSI port 1: 192.168.131.101-> to switch 2

  iSCSI port 2: 192.168.132.101-> for switch 1

  iSCSI port 4: 192.168.133.101-> to switch 2

  Controller 1:

  iSCSI port 0: 192.168.130.102-> for switch 1

  iSCSI port 1: 192.168.131.102-> to switch 2

  iSCSI port 2: 192.168.132.102-> for switch 1

  iSCSI port 4: 192.168.133.102-> to switch 2

  Server 1:

  iSCSI NIC 0: 192.168.130.110-> for switch 1

  iSCSI NIC 1: 192.168.131.110-> to switch 2

  iSCSI NIC 2: 192.168.132.110-> for switch 1

  iSCSI NIC 3: 192.168.133.110-> to switch 2

  Server 2:

  Same note on the use of only 2 cards per server for iSCSI. In this configuration each server will always use two switches so that a failure of the switch should not take down your server iSCSI connectivity.

  Quad switches (or 2 VLAN on each of the 2 switches above):

  iSCSI port 0: 192.168.130.101-> for switch 1

  iSCSI port 1: 192.168.131.101-> to switch 2

  iSCSI port 2: 192.168.132.101-> switch 3

  iSCSI port 4: 192.168.133.101-> at 4 switch

  Controller 1:

  iSCSI port 0: 192.168.130.102-> for switch 1

  iSCSI port 1: 192.168.131.102-> to switch 2

  iSCSI port 2: 192.168.132.102-> switch 3

  iSCSI port 4: 192.168.133.102-> at 4 switch

  Server 1:

  iSCSI NIC 0: 192.168.130.110-> for switch 1

  iSCSI NIC 1: 192.168.131.110-> to switch 2

  iSCSI NIC 2: 192.168.132.110-> switch 3

  iSCSI NIC 3: 192.168.133.110-> at 4 switch

  Server 2:

  In this case using 2 NICs per server is the first server uses the first 2 switches and the second server uses the second series of switches.

  Join directly:

  iSCSI port 0: 192.168.130.101-> server iSCSI NIC 1 (on an example of 192.168.130.110 IP)

  iSCSI port 1: 192.168.131.101-> server iSCSI NIC 2 (on an example of 192.168.131.110 IP)

  iSCSI port 2: 192.168.132.101-> server iSCSI NIC 3 (on an example of 192.168.132.110 IP)

  iSCSI port 4: 192.168.133.101-> server iSCSI NIC 4 (on an example of 192.168.133.110 IP)

  Controller 1:

  iSCSI port 0: 192.168.134.102-> server iSCSI NIC 5 (on an example of 192.168.134.110 IP)

  iSCSI port 1: 192.168.135.102-> server iSCSI NIC 6 (on an example of 192.168.135.110 IP)

  iSCSI port 2: 192.168.136.102-> server iSCSI NIC 7 (on an example of 192.168.136.110 IP)

  iSCSI port 4: 192.168.137.102-> server iSCSI NIC 8 (on an example of 192.168.137.110 IP)

  I left just 4 subnets controller 1 on the '102' IPs for more easy changing future.

• Best practices for a NFS data store

  I need to create a data store on a NAS and connect to some servers ESXi 5.0 as a NFS datastore.

  It will be used to host virtual machines less used.

  What are the best practices to create and connect a datastore NFS or networking and storage view bridges in order to get the best possible performance and decrease is not the overall performance of the network?

  Concerning

  Marius

  Create a new subnet of layer 2 for your NFS data warehouses and set it up on his own vSwitch with two uplinks in an active configuration / eve of reunification. Uplink should be variously patches in two distinct physical switches and the subnet must have the disabled bridge so that NFS traffic is not routable in other parts of your network. NFS export can be restricted to the IP address of storage host IP (address of the VM kernel port you created for NFS in the first step), or any address on that subnet. This configuration isolates traffic NFS for performance, ensures the security and redundancy. You should also consult your whitepapers of storage vendors for any specific recommendation of the seller.

  Data warehouses can be made available for the guests you wish and you can use Iometer to compare PAHO are / s and flow rate to see if it meets your expectations and requirements.

• Best practices the iSCSI target LUN

  I connect to my ESX laboratory to a QNAP iSCSI target and wonder what best practices to create LUNS on the target. I have two servers each connection to its own target. Do I create a LUN for each virtual machine, I intend to create in the laboratory, or is it better to create a LUN of the largest and have multiple VMs per LUN? Place several virtual machines on a LUN has concequenses HA or FA?

  Concerning

  It is always a compromise...

  ISCSI reservations are per LUN.    If you get many guests on the same logical unit number, it becomes a problem and Yes we saw it.

  Slim sure to layout.   This way you can make your smaller LUN and still get several s VM we each their.

• Swap Partition - best practices

  Hi all

  What is considered a best practice to create the swap partition?

  ESX 4 is based on Red Hat Enterprise Linux Server version 5.1,

  I searched their knowledge base and found the following article:

  Q. If I add several hundred GB of RAM for a system should I really more

  hundreds of GB of swap space? (kbase.redhat.com/faq/docs/DOC-15252)

  A. short answer:

  • Systems with 4 GB of ram or less require a minimum of 2 GB of swap space

  • Systems with 4 GB to 16 GB of ram require a minimum of 4 GB of swap space

  • Systems with 16 GB to 64 GB of ram require a minimum of 8 GB of swap space

  • Systems with 64 GB, 256 GB of ram require a minimum of 16 GB of swap space

  Thanks in advance,

  Ronen.

  1.6 GB as the Service Console is limited to 800 MB of memory.

  Duncan

  VMware communities user moderator | VCP | VCDX

  -

• Best practices for backup service console configuration

  Hello

  When you install our ESX servers, I did what I thought was best practices and created a "backup" vswitch with a second service console. Two service consoles have IP addresses on the same subnet.

  They work very well for several weeks. But today, I had a problem connecting to the consoles of the virtual machines on one of our ESX host. After much troubleshooting, I found doc below...

  http://KB.VMware.com/selfservice/viewContent.do?language=en_US & externalId = 749640

  In point 8, it is said to make sure that you do not have 2 consoles of service on the same network. (Either by the way once I removed the backup vswitch I could access the consoles.)

  I so wanted to check this - should I not create these backup service consoles?

  TIA,

  H

  You don't have to second service console, just a second link to SC.

  Add a NIC to portgroup SC (it can be standby NIC), which would be enough.

  ---

  VMware vExpert 2009

  http://blog.vadmin.ru

• BEST PRACTICES FOR PL/SQL

  Hi all
  I'm looking for advice on best practices to create c# applications that have Oracle as backend.
  I noticed this insertion, update, and delete procedures are not so dynamic because they are static:
  
  Insertion procedure:

   Create or replace procedure insertion (param1 in varchar2 default '', 
  param2 in number default 0, param3 in float default 0,
   table_to_insert in varchar2, Some_error out varchar2) is
  begin
  if (table_to_insert='table1_spec') then
  insert into table1 (val1,val2,val3) values (param1, param2,param3);
  elsif (ect) then
  .
  .
  .
  end;
  /

  Updated and delete procedures also have the same behavior, I wonder if you use a cursor to do more dynamic values return and the use of native dynamic SQL could not help the developers and I have to have something more dynamic.
  Kind regards
  
  Published by: user650358 on June 9, 2011 08:37

  user650358 wrote:

  I'm looking for advice on best practices to create c# applications that have Oracle as backend.

  What John said. (even if I would have been more blunt and used the expression "+ approach silly +" several times) {noformat} ;-) {noformat}

  The most flexible approach is to abstract the complexities of SQL, the relational database and the physical implementation of it, of the code c# developer.

  No need to know the database design, the joints, the structures table, SQL and others. Instead the abstract layer takes care of that - where this layer is a suite of packages of PL/SQL procedures and functions.

  As the c# developer would use the Win32 API for creating threads, or the use of Sockets of Win, it now uses the layer of abstraction of PL/SQL in a similar way.

  You want to add an invoice? No need to know the name of the table, the structure of the table and SQL - c# code calls simply the CreateInvoice()PL/SQL procedure.

  This code performs the validation. Business rules and logic. The SQL.

  More, the underlying database model can change, the new rules of business introduced and so on - and the call from c# to CreateInvoice() will remain the same and the c# code not affected by these changes in dorsal.

  Oh yes - it does not using PL/SQL code to extract data from line in the PL/SQL variables and then push these data in turn to the c# client code.

  It means that a procedure or a function like GetCustomertInvoices() returns a ref cursor to the appellant to consume. (the SQL to create the slider is abstract - not the actual slider itself because it is correct the only way to access the data in row SQL)