Updates the performance of HP Array Configuration Utility in ESXI 5?

Similar Questions

• HP Array Configuration Utility and ESX 3.5

  Hello

  I just install ESX 3.5 on a new server, HP DL380 G5 with an internal RAID controller SmartArray P400/256. I would like to install HP Array Configuration Utility on the server, so I can monitor the integrity of the local RAID System. After installing HP System Management Homepage, I downloaded the Linux version of the ACU software and tried to install it, but rpm complains about failed dependencies (libstdc ++. so.6 is necessary for cpqacuxe - 8.28 - 13, 0).  Internet searches have turned up nothing useful. Someone at - it suggestions on how to solve this problem?

  Thank you!

  Bob

  Do you mean esx or esxi?

  I have installed HP SIM, but also simply use HP system management homepage to monitor the integrity of the box esx server.

  Just download the HP agents and install via cli. Then you can display the system management homepage by pointing a web browser to the IP of the box of esx.

  For esxi, you installed the version of esxi HP who has management agents, built in?

• status of landmark HP + generic host process for the + serious mistake WMI + system configuration utility + ALG pop-up messages

  I have a desktop computer, with Windows XP. He has a very good performance for 4 years. But in recent days, some of the messages appeared, and suddenly, the computer restarts. and if she did ' t restart directly, she performed very bad (gel + slowly). 6 messages appeared, they are:

  1 - generic host process for win32 services has encountered a problem
  2 - problem WMI
  3 - the system has recovered from a serious error
  4 system configuration utility
  Situation 5 - hp cue has encountered a problem
  6-application Layer Gateway service
  Help, please.

  Hi Alaa' Kabbani,.

  1. did you of recent changes made to your computer?

  2. which antivirus app do you use?

  3. What is the brand and model of your computer?

  I suggest to follow the steps below and we update on the State of the question.

  Method 1: Disconnect any new hardware

  If you have recently installed a new hardware device, the necessary driver so that the material can not be installed or the driver may be damaged or incompatible. To determine if this is true, follow these steps:

  1 unplug the appliance.

  2. restart Windows XP.

  If Windows XP starts successfully, there is a driver problem with the new material. Contact the manufacturer of the device for drivers updated to the device or to learn more about known hardware issues, so that you can reinstall the device.

  For information about how to contact the manufacturer of the device, refer to the Microsoft Web site at the following address:

  http://support.Microsoft.com/GP/vendors

  (http://support.microsoft.com/gp/vendors)

  Microsoft provides third-party contact information to help you find technical support. These details may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

  If this method resolved the issue, you are finished. If this method does not work for you, go to method 3.

  Method 2: Disable automatic reboot in case of system failure

  If the system reboots continuously, do the following:

  1. reboot the computer.

  2. as the computer restarts, press the F8 key repeatedly until you see the Windows Advanced Options screen.

  3. use the arrow keys to select disable automatic system error rebootand press ENTER.

  4. If you receive an error message, follow these steps to search the Microsoft Knowledge Base for useful information about the error message:

  a. copy the text of the error message.

  b. visit the following Microsoft Web site:

  http://support.Microsoft.com

  (http://support.microsoft.com)

  c. type the text of the error message in the Search box, and then type the name of the product you are using, for example "Windows XP".

  d. click on Searchand try to find an article that will help you solve your problem.

  If this method worked, you have resolved the problem of your computer restarts continuously. However, you can continue to troubleshoot driver problems. See the "Symptoms" section again and determine which method to use to solve the problem.

  If this method worked, you are finished. If this method does not work for you, please try Method 3.

  Method 3: Use the known last good Configuration feature

  If you can start the computer successfully, you can use the known last good Configuration feature. This feature uses information that was saved the last time that you shut down the computer before the problems started. This feature allows to restore your registry settings and drivers to the previous information.

  If you are not completely sure what that means, don't worry. None of these reviews will damage your computer. However, you should be aware that if you do this, any changes made to your computer after the date of last known good configuration will be lost.

  If you have recently installed a driver and know a configuration problem, this method will probably work for you. Unfortunately, this feature does not solve the problems caused by missing drivers or corrupt or files.

  To use the last good known Configuration, follow these steps:

  a. restart the computer.

  (b) that the computer restarts, press the F8 key repeatedly until you see the Windows Advanced Options screen.

  c. use the arrow keys to select last good Configuration known (your most recent settings that worked), and then press ENTER.

  d. If you are prompted to select an operating system, use the arrow keys to select the operating system and press ENTER.

  If this method worked, your computer is restored to a good working state. You still have to investigate on what caused this problem. To do this, please see the "Next steps" section for troubleshooting resources more.

  Also refer to this link: Slow PC? Optimize your computer for peak performance

  http://www.Microsoft.com/athome/Setup/optimize.aspx#fBid=G1iW6Kb0x5J

  WARNING CHKDSK:

  Running chkdsk on the drive if bad sectors are found on the disk hard when chkdsk attempts to repair this area if all available on which data can be lost.

  Anti Virus WARNING: The data files that are infected must be cleaned only by removing the file completely, which means that there is a risk of data loss.

  If you have trouble following the suggested steps or if the problem persists, please let us know and we are ready to answer them for you.

• Update Windows 7 updated the guard and does not configure updates

  Original title: 2 Windows updates daily for the last 10 days

  I get 2 updates every time that I stopped for the night. The updates take anything between 3 and 5 minutes to install and the pc is turned off automatically. When I restart the pc it starts immediately configure updates and it can take anything up to ten minutes. I don't know how to access the updates of teas to see if they are fresh updates or if they the same two updates recurring constantly! This 'problem' started ten days ago.

  Click Start, type: Windows Update

  Press enter on your keyboard

  Click on the link to check updates

  A list of all the updates is downloaded

  You will be able to view the updates that must be installed, along with a description and the number of KB.

  You can then choose to go to http://www.microsoft.com/downloads and download these updates manually and install them.

  You can also click on change settings in Windows Update and click the option to download updates, but choose when to install them.

  Releasing it's easy: with Windows | ActiveWin | Laptops | Microsoft MVP

• Update the BIOS of powerage dell 2950 through an ESXi installation

  I'm not sure of the best way to update the bios of a Dell 2950 powerage on which I have a facilities of ESXi 3.5 u2.

  I have two virtual machines running.

  Dell has a "Update Package for Microsoft® Windows®" (PE2900_BIOS_WIN_2.1.0.EXE) which, in my opinion, can update the bios from a windows OS.

  I had to do some research, but I posted instructions on how to upgrade your Dell server running ESXi through records of SUU. Here are the instructions... I do before putting all servers in production, and after the shooting of any old material off the rack before stopping their production, never had a problem.

  Here's my process to update ESXi (dell of course hardware) servers.

  1 Download DVD Dell Software Update Utilitly, its 1.9 GB disc. (if you have a dvd player on your server, you can directly boot from this drive but if you had a CD player in your continuous server, or if you want to store the files of rep on a USB drive below eye).

  2. extract the contents of the iso (winrar), so a lot of my servers arrived with

  just for the readers of CD so I take a USB stick and loading JUST the 'repository '.

  folder from the disk update utility, which is about 1.2 GB of update

  files.

  3. then download the CD version of Dell Software Update Utility, it

  will have all the updates for the DVD and dell does not have up-to-date

  but that's fine, boot from that disk.

  4 start the CD, to the start screen select Update utility, wait 15-20

  "mins for linux to load, display, select Update ' updates are

  Located on a usb drive ", put your USB key with the storage folder"

  on it, then hit, which makes search updates, show what is necessary and

  You can update.

  5. install and start.

• error A 80071, 90 - after trying to install security updates, the PC reboots but cannot configure Windows

  Try to download security updates, but after restarting the computer it says it can't reconfigure windows?

  Hello

  I also have this problem with the error code A 80071, 90 now on a total of 13 edits. Number of KB include: KB2731847, KB2705219, KB2722913, KB2647753

  I tried several times, I've used Fixit to http://support.microsoft.com/kb/836941 , who reports that he found and fixed two problems, yet when I try another day the same error is there.

  Any suggestions what to do?

  Operating system: windows 7 x 64

• How to generate the array Diagnostic Utility ADU for Esxi server

  How to run Diagnostic Utility ADU or HP Insight Diagnostics HP Insight Diagnostics table to collect the status tables and logs data FRO an Esxi Server

  How to generate the array Diagnostic Utility ADU for Esxi server

  Example:

  Download the package .vib here: http://vibsdepot.hp.com/hpq/feb2013/esxi-5x-vibs/hpacucli/hpacucli-9.40-12.0.vib

  and place it on a store of data seen by the host...

  Install it using the CLI:

  software esxcli vib install d vmfs/volumes //hpacucli-9.40-12.0.vib

  Now run it:

  ~ # cd/opt/hp/hpacucli/bin

  / opt/HP/hpacucli/bin # . / hpacucli

  HP Array Configuration Utility CLI 9.40.12.0

  Detection of controllers... Fact.

  Type 'help' for a list of supported commands.

  Type "exit" to close the console.

  => ctrl all diag file=/tmp/my_ADUreport.zip ris = on = on zip xml = on

  Generation of diagnostic report... done

  -Online output

  / opt/HP/hpacucli/bin #.

  my_ADUreport.zip in / tmp can now be downloaded from the host...

  It could be that useful...

  / Rubeck

• ProDesk 600 G1 BIOS configuration of the TPM secure through the BIOS Configuration utility

  We have a range of devices, computers HP desktop and laptops in our environment.  Devices are all running Windows 7 64 bit and should have Bitlocker enabled, but we found that some were not encrypted.  So I am trying to set up a remote BIOS and Bitlocker config activate software that we can get out via SCCM and then embed in a task sequence image for new machines.

  I use the Bios HP Configuration utility to check a BIOS password is set and then activate the TPM chip.  I took a BIOS config output of each of our models and created a settings file that has all of the TPM associated parameters of all models.

  At the moment I run Setup BIOS utility manually for testing.  On all models I tried that works very well, except for the 600 ProDesk G1 SFF.

  When I run the utility on the ProDesk 600 G1 MFS, it says that I have managed to update the settings, and when I check the BIOS, the TPM secure has been unhidden and the TPM Management was given to the operating system (two settings I change), but the TPM itself remains hidden.

  It's the release of the BIOS configuration utility (it uses the 2.60.13.1 version, which uses plaintext passwords.  I also tried with the 3.0.13.1 later version that uses password files - same result)

  C:\ > BiosConfigUtility64.exe /cspwd: "password" set: "TPM_Config.REPSET"
  
  < BIOSCONFIG Version = "2.60.13.1" Computername = 'HP600G1' Date = "24/07/2014" Time = "13:01:37 ' UTC '1' = >"
  
  < SETTING changeStatus = "pass" name = "Embedded Security Device" reason = "' returnCode '0' = >"
  
          < OLDVALUE > <! [CDATA [hidden device]] > < / OLDVALUE >
  
          < NEWVALUE > <! [CDATA [device]] > < / NEWVALUE >
  
  < / SETTING >
  
  < SETTING changeStatus = "pass" name = "Enable security on the next boot" reason = "' returnCode '0' = >"
  
          < OLDVALUE > <! [CDATA [disable]] > < / OLDVALUE >
  
          < NEWVALUE > <! [CDATA [enable]] > < / NEWVALUE >
  
  < / SETTING >
  
  < SETTING changeStatus = "pass" name = "The BONES of on-board safety management" reason = "' returnCode '0' = >"
  
          < OLDVALUE > <! [CDATA [disable]] > < / OLDVALUE >
  
          < NEWVALUE > <! [CDATA [enable]] > < / NEWVALUE >
  
  < / SETTING >
  
  < SUCCESS msg = "Successfully set BIOS config." / >
  
  < information msg = 'BCU return the value' real '0' = translated = '0' / >
  
  < / BIOSCONFIG >
  
  C:\ >

  And after a reboot (where it should activate the TPM), BIOS shows as disabled built-in safety device (see attachment for the image).

  I have tried everything I can think of to get this to activate, including:

  • Different versions of the BIOS configuration utility
  
  
  • Remove the password from the BIOS and the application in the same order as the parameters
  
  
  • Different passwords
  
  
  • Reboot and allowing the machine to start completely to Windows before checking if the setting took effect

  I also tried to add the utility and the commands for an SCCM package and it works directly and as part of a sequence of tasks to see if that makes a difference, but nothing I've done has activated the TPM module.

  I know that the TPM module works, as you can turn it on manually and then Bitlocker can be applied to the machine, but with thousands of devices in our environment, I need to get this job without the need for manual intervention.

  Has anyone else had this problem and found a solution?  Or has someone at - he managed to activate the TPM on the SFF of 600 ProDesk G1 using the BIOS Setup utility?  Any ideas / suggestions would be very appreciated!

  P.S. This thread was moved from the company PC - Compaq, Elite, Pro for HP PC Client management. -Hp moderator of the Forum

  This problem has now been resolved by HP.
  
  They provided a replacement motherboard for the test machine I was using that solved this problem. I don't know what kind of motherboard failure could prevent the activation via the script TMP chip but not prevent activation through the BIOS menu, but as a replacement solved the problem, then it must be a hardware failure.

• Is Toshiba supports a utility to update the BIOS like DCCU?

  Hi all

  Another laptop to the manufacturer use a utility called the Configuration utility (DCCU) Client that can be used to update the BIOS for several models of laptops in the series.

  I searched on the web and these forums, but I can't find a similar tool for Toshiba laptops.

  Can someone point me in the right direction please?

  Thank you
  Scott

  Published by: admin

  Hello

  You should not compare the procedure of updating the BIOS from different manufacturers with the process of updating the BIOS Toshiba laptop.
  Laptop Toshiba computers come with special versions of BIOS (Toshiba & Phoenix) and on the update of the procedure is also different!

  If you want to update the BIOS of Toshiba laptop, you will need to first check if a new BIOS is available and you should check the statement and the update process.
  If I m not mistaken not updated the BIOS most on the most recent series portable Tosh must be done of Windows operating system.

  If an update BIOS utility like DCCU is unavailable for Toshiba laptops!

  Best regards

• Disabling update the configuration file without stopping the VI

  I would like to perform a function that when the new modules are added in the existing system of the public Service or hot swapping modules autour, the VI can update its configuration file. I don't want the VI to stop we will collect data 24/7.

  I use cFP2220 and two or three modules of different types. I have my work VI and it is fairly straightforward FP read.vi in a time loop. All data are stored in the database using the Labview database tool. My screws are hosted on the local PC, not on the controller. I'm using Labview 8.6.

  I guess I have to get the file configuration (iak), whenever new modules are added, the iak file can be changed (without MAX aperture). In any case, I would have the flexibility to run the VI continuous. I know there is a similar code here: http://zone.ni.com/devzone/cda/epd/p/id/3221and they get the configuration file in the ini file. But I don't know how it's done as I can save only the configuration file as a file iak for FP system.

  Another potential problem associated with that, I guess, is the database format. For now, I use a three column structure, i.e., DateStamp, value and ChannelID. In this case, if I want to add/remove/swap channels, I can just change the ID of the corresponding channel. What happens if I have a horizontal arrangement of the database, namely 10 columns corresponding to 10 sensors, would he be in trouble if I change channels modules?

  Thank you very much.

  There is a way to change the module and programmatically updated the IAK file without stopping the VI.  You will need to change the FP read.vi front right by with the constant e/s FieldPoint.  You will need to use the Open FP, FP create Tag, read FP, and close to the public Service.  The trick to this is that you must pre-create files IAK in MAX first.  The way to do is to set up your cart in a configuration and then find devices to MAX.  Then save the iak.  Then reorganize your bottom of basket to the next setting would have desired, then have MAX find devices and who save in a file different iak.  You will need to do this for each configuration you have.  Then, you need to place the code below when you want to Ministry the configuration file.  I have also included a screenshot of MAX that you can see what the strings are correlated with.

  

• After installing a new HARD drive, I get a screen "control i to access the configuration utility.

  Help?

  I installed a new HARD drive on my xps 15 because the old drive crashed. Everything works fine and the system boots perfectly. Before entering the Dell splash screen, the screen "control i to access the configuration utility" appears for 5 seconds. After that, the normal boot sequence resumes. Can someone please explain to me why this is happening and what I can do about it?

  Here is a link to the screen I get started: http://s102.photobucket.com/user/alexcinie/media/photo_zpsb75f0a7f.jpg.html

  The mSATA drive is used as a cache for the hard drive dynamic - these are essentially implemented in a RAID 0 array.  See the link below (it is for Alienware, but applies to your system as well).

  If you want to keep the disk cache, you need to configure the array as shown.

  http://www.Dell.com/support/troubleshooting/us/en/04/KCS/kcsarticles/ArticleView?docid=564442

• Update... Union Vs all the individual updates multiple - performance?

  Hi all
  
  I have a procedure that retrieves data from a remote database. It runs multiple updates on a single table. It will be better in terms of performance if I have all the updates that are grouped into an update using UNION all.
  
  Please advice in terms of performance or other options to improve the performance...
  
  INSERT INTO BALAN)
  deal_id, projection_period, deposit, divided
  )
  SELECT DEALID, 1, nvl (to_char (sum (avg_deposit) / count (avg_deposit), "99999999999.99'"), 0) deposit.
  NVL (to_char (Sum (avg_float) / count (avg_float), "99999999999.99'"), 0) distributed
  BILLING. CAP_ANST1@LINK_BILLN01D one
  WHERE account = AACCOUNT
  AND group_ind = GROUPID
  AND stamp = v_stamp_date
  
  UNION ALL
  
  SELECT DEALID, 3, nvl (to_char (sum (avg_deposit) / count (avg_deposit), "99999999999.99'"), 0) deposit.
  NVL (to_char (Sum (avg_float) / count (avg_float), "99999999999.99'"), 0) distributed
  BILLING. CAP_ANST1@LINK_BILLN01D
  WHERE account = AACCOUNT
  AND group_ind = GROUPID
  AND stamp > = v_stamp_date_minus_2
  
  UNION ALL
  
  SELECT DEALID, 6, nvl (to_char (sum (avg_deposit) / count (avg_deposit), "99999999999.99'"), 0) deposit.
  NVL (to_char (Sum (avg_float) / count (avg_float), "99999999999.99'"), 0) distributed
  BILLING. CAP_ANST1@LINK_BILLN01D
  WHERE account = AACCOUNT
  AND group_ind = GROUPID
  AND stamp > = v_stamp_date_minus_5
  
  UNION ALL
  
  SELECT DEALID, 12, nvl (to_char (sum (avg_deposit) / count (avg_deposit), "99999999999.99'"), 0) deposit.
  NVL (to_char (Sum (avg_float) / COUNT (avg_float), "99999999999.99'"), 0) distributed
  BILLING. CAP_ANST1@LINK_BILLN01D one
  WHERE account = AACCOUNT
  AND group_ind = GROUPID
  AND stamp > = v_stamp_date_minus_11;
  
  ---------------- OR---------------------------------
  
  INSERT INTO IDM.balan
  (DEAL_id, PROJECTION_PERIOD, filing, extended)
  SELECT DEALID, 1, nvl(SUM (avg_deposit) / COUNT (avg_deposit), 0) deposit.
  NVL(Sum (avg_float) / COUNT (avg_float), 0) distributed
  BILLING. CAP_ANST1@LINK_BILLN01D one
  Aaccount = a.ACCOUNT WHERE
  AND a.group_ind = groupid
  AND stamp = (SELECT to_date (value, "MM/DD/YYYY '"))
  OF APP_ENV
  WHERE name = 'CUR_STAMP');
  
  
  INSERT INTO IDM.balan
  (DEAL_id, projection_period, deposit, spread)
  SELECT DEALID, 3, nvl (TO_CHAR(SUM (avg_deposit) / COUNT (avg_deposit), '99999999999.99'), 0) deposit.
  NVL (TO_CHAR(SUM (avg_float) / COUNT (avg_float), '99999999999.99'), 0) distributed
  BILLING. CAP_ANST1@LINK_BILLN01D one
  Aaccount = a.ACCOUNT WHERE
  AND a.group_ind = groupid
  AND stamp > = (SELECT ADD_MONTHS (to_date (' value, ' DD/MM/YYYY '), 2))
  OF APP_ENV
  WHERE name = 'CUR_STAMP');
  
  
  INSERT INTO IDM.balan
  (DEAL_ID, projection_period, deposit, spread)
  SELECT DEALID, 6.
  NVL (TO_CHAR(SUM (avg_deposit) / COUNT (avg_deposit), '99999999999.99'), 0) deposit.
  NVL (TO_CHAR(SUM (avg_float) / COUNT (avg_float), '99999999999.99'), 0) distributed
  BILLING. CAP_ANST1@LINK_BILLN01D one
  WHERE a.ACCOUNT = aaccount
  AND a.group_ind = groupid
  AND stamp > = (SELECT ADD_MONTHS (to_date (' value, ' DD/MM/YYYY '), - 5))
  OF APP_ENV
  WHERE name = 'CUR_STAMP');
  
  
  
  INSERT INTO IDM.balan
  (DEAL_ID, projection_period, deposit, spread)
  SELECT DEALID, 12, nvl (TO_CHAR(SUM (avg_deposit) / COUNT (avg_deposit), '99999999999.99'), 0) deposit.
  NVL (TO_CHAR(SUM (avg_float) / COUNT (avg_float), '99999999999.99'), 0) distributed
  BILLING. CAP_ANST1@LINK_BILLN01D one
  Aaccount = a.ACCOUNT WHERE
  AND a.group_ind = groupid
  AND stamp > = (SELECT ADD_MONTHS (to_date (' value, ' DD/MM/YYYY '), - 11))
  OF APP_ENV
  WHERE name = 'CUR_STAMP');
  
  
  Thanks in advance!
  
  Grateful for your help!
  
  Thank you
  Bob

  What are the numbers? Elapsed time? Gets? Snaps?

  What are the numbers? Show us we're curious too. Well, I am, maybe should not try to speak for others. If you didn't already know this topic, use Thomas Kyte runstats to compare the 2 methods and see which is less work: http://asktom.oracle.com/tkyte/runstats.html

  You are in a much better position than us to the answer which is better, as you have systems, configuration and data (more the piece of string connecting them) at hand, we can only guess.

  Be nice and mark one of the messages of Peter as Correct or useful.

• Moved from AAS db to new server... What the configuration utility options do

  Had to move AAS db to a new server (with another associated Hyperion dbs)
  
  According to Oracle, I need to run the Configuration utility after the move on the Essbase db server.
  
  When I run the Configuration utility, I gives me a lot of choices. I checked the installation guide and in vain on the details of what to run.
  
  So if I just want to have Essbase reassociate itself with the AAS db in a different location the following, which one to pick?
  
  Essbase Administration Services
  Configure the database
  Register with Shared Services
  Deploy to the application server
  
  Essbase provider services
  Register with Shared Services
  Deploy to the application server
  Unregister the SSP.
  
  Essbase Server
  Product
  Register with Shared Services
  And one more (can not see on the screenshot)
  
  Thank you

  Hello

  It should be

  Essbase Administration Services
  Configure the database

  Make sure that aferwards he has updated all HBRServer.properties

  See you soon

  John
  http://John-Goodwin.blogspot.com/

• Update the Configuration of the switch switch 2.1 Executive to 3.5

  Hello world

  I tried the switch 2.1 update Executive to 3.5 and have known, that my configurations have stoppped working. To me, it looks like 3.5 dislikes my IVI configuration for switching modules.

  The function check in MAX tells me that the PXI cards are not available. The first page of the configuration of the switch shows no configuration / terminal blocks.

  Because the configuration consists of nine matrix with lots of report cards, I would really appreciate a way to properly import the old configurations (xml files are available)

  Any ideas?

  See you soon

  Oli

  Hi Oli,

  Yes, there was a major change in the Switch Executive 3.5 - it now uses for switching NI DAQmx calls material. There is a KB document the upgrade process a simulated configuration from an earlier version, but of course, you can try the steps that make sense, too:

  Import of NI Switch Executive 3.0 and previous virtual devices in OR Switch Executive 3.5 and later versions

  http://digital.NI.com/public.nsf/allkb/1D1099A85B156FA68625778500787444

  However, I have noticed that the KB Editor uses a configuration file to .txt instead of the .xml you have. I see two options here: first of all, if you have even an operating system with Switch Executive 2.1, you could probably export settings in the form of text or you can try to modify the .xml file manually to resemble the layout of the text (probably a lot of work, you would have to learn the structure of the text by trial and error using newly created Switch E.g. 3.5 configurations...)

  Best regards

  Sebastian

• Comparison of the results of the performance and the sum of the sum of array elements

  I did a comparison of the performance of "Add table" with 2 other methods (an Add elements and function of ddot BLAS) to see who was the fastest and also to compare their results, given that I was watching a few slight differences.

  Conclusions
  BLAS ddot's quicker (just a little), then add items, then add it in a loop of table

  BLAS ddot and add items table give identical results almost all the time.

  I don't know why add items in a loop manually gives a slightly different result. I understand there are any rounding due to finite precision errors, but why is it different for the 2 other methods?

  This classic of digital computing: the quality of the result depends on the order of operations.

  A simple example is the calculation of a * b / c with a, b, c equal to 25, 200 and 100 respectively. The result should be 50, but if a, b and c are U8, the result depends on the order of operation, as shown in the example below. DBL and data non-entier, the difference is of course that much smaller, but still there are!

  

  

  In your case, the difference also stems from the order of operations:

  -in the table add-in, the product of all the elements is calculated first and then the elements of the array are added.

  -in the loop, the addition is performed after each multiplication.