help cd mp3/data transfer

Similar Questions

• Help: 8-bit data transfer

  Hello friends of data acquisition,

  I have a complex programming project for which I'm looking for advice.    I have a good idea of what needs to be done and took I stab in the attached VI.   However, I have no experience with DIO, ergo, I am not confident in what I've done!   The target system is deleted physically for me, so my hope is that I can get some corrections and guidance from the joint forum before visiting the production system.   Right now I am simulating my offsite PXI-6259 with MAX.   Advice/comments/advice would be greatly appreciated!

  Sincerely,

  Zach

  The task at hand = transfer a text string to an adjacent DSP system with 8 digital output lines.

  The requirements are:

  1. convert each character in a binary table of 8-bit ascii standards

  2. write the table 8-bit daqmx digital output lines.

  3. read the DSP System State occupied by entry digital daqmx, slowed down (low TTL) or busy (TTL high)

  4. wait for the DSP is inactive

  5 generate a pulse TTL from 0.0003 sec to the line to "lock" the 8bits via digital output separated daqmx.

  6. Repeat until the entire chain has been sent

  All in all, I have 8 lines for codes, a single line of DI for the status of the DSP and the other line for the impulse of 0.0003 strobe (lock).

  I'll give up this thread...   I have made significant progress and am now testing the attached version.

• Data transfer NI653x

  Hello

  We used the NI6534 card to transfer data from our system in a PC. He works on traditional pilot and DAQmx. We use handshanking calendar for data transfer. Recently, we want to increase the speed of data transfer and need to change the "timing" of the handshake to sample clock calendar (model IO in traditional version). We got it working using the traditional driver, but not by DAQmx. I always get an error code when you try to start the data acquisition. Code error-89129 - Terminal is not valid for the device. Here is C code to configure and start the map:

  DAQmxCreateTask("",&m_taskHandle);
  DAQmxCreateDIChan (m_taskHandle, "Dev3/port0_32", "", DAQmx_Val_ChanForAllLines);
  m_numofSampletoRead = 2000000;

  continue to generate samples up to the stop.
  bRet = DAQmxErrChk (DAQmxCfgSampClkTiming(m_taskHandle,"Dev3/PFI2",20000,DAQmx_Val_Falling,DAQmx_Val_ContSamps,m_numofSampletoRead));
  specify the size of the buffer
  bRet & = DAQmxErrChk (DAQmxCfgInputBuffer (m_taskHandle, BUFFER_SIZE));

  Once he went to configuration and once called the DAQmxStopTask (m_taskHandle) function, he returned this error code I mentioned above.

  With respect to the traditional version, I just added a call to the function below and it worked fine.

  If (!) () status = DIG_Block_PG_Config (m_deviceNumber,
  m_group,
  1, / * enable the generation of model using REQ edge lock * /.
  1, / * REQ - REQ external source * /.
  -3, / * time - base 50ns, it is an internal clock * /.
  1, / * interval REQ * /.
  ((((i16) 0))) / * turn on or off the switch * /.

  Can you help me how to make it work with DAQmx? Thank you.

  Thank you, James. The example of aid. The function I called:

  DAQmxErrChk (DAQmxCfgSampClkTiming (taskHandle, "/ Dev3/PFI2", 10000.0, DAQmx_Val_Rising, DAQmx_Val_ContSamps, 1000));

  I missed the first slash highlighted in RED.  I've was allowed past this function call but got stuck at the next function call, DAQmxErrChk (DAQmxStartTask (taskHandle)), that me cheated.

  Thanks again for your help.

• File 'mig' data transfer Assistant

  (Working on the Sprint this morning online customer service, but they have quickly exhausted their standard options and do not know how to help me).

  I ran the data transfer Assistant to my pre.  I have Outlook 2007 (the previous one had a Treo 700 p) and I try to transfer

  • 917 contacts
  • calendar items 328
  • 0 tasks (don't no need)
  • 467 notes/memos

  OK, so the fact that the .mig file is gone means the party to the phone to transfer all read in the file. This could be a matter of time. So what happens first of all, it is only your contacts imported and then audited for related contact matches (contacts that have matching data is connected in a single contact). Once done, that everything starts coming into the phone.

  That being said, if you want to start over, I'd be very careful about this. The DTA brings on EVERYTHING, so everything he dropped on your phone already is going to be duplicated. If you really want to do it again, follow these steps:

  Open Backup, tap the button toggle to turn it off, then tap Delete & turn off - it is to make sure that the backup data is not automatically restored and then duplicated when you run the DTA

  Open Device Info, click options to reset, press erase partial - this will delete all of your PIM data from the phone.

  The phone goes back to the top, add your accounts to it, and rerun the DTA. Don't forget, don't do that if you REALLY want to start over. If not, try just to give it some time

• PXI data transfer between OTN and FPGA

  Hello

  I have a DAQ card in my PXI and a FPGA 7813R map.

  The problem is that I send sample waaveforms of the data acquisition card to the FPGA card (which only has digital i/o) to launch my control on the FPGA. When I generate a sine wave of 50 Hz in the OTR to simulate a measured signal and send it to the FPGA through the controls in the Panel before (http://zone.ni.com/reference/en-XX/help/371599G-01/lvfpgaconcepts/pfi_data_transfer/) the signal happens on the fpga is much slower than 50 Hz indicating this folding is (it takes too much time to send the data). I tried to use this method of data transfer because my control requires only the more recent data, but it also has a phase lock loop that requires the data arriving at least resemble the original signal. Another criterion is that the control to data more up-to-date as possible. I know there is another option of the use of DMA FIFO, but I use it because I thought it would take more time to send the data, because each value must be sent.

  My questions are:

  I go about it the correct way? I know that there is the FPGA cards with analog inputs. I buy one it is because I have a large amount of differential analog inputs (20 +)

  Is there a quick way to transfer data to the FPGA. (I have converted all the FXP data before writing to the FPGA)

  Hi Jagwa,

  You should not have to synchronize the RTOS loop that written information and the FPGA VI which is read.  Instead, you can simply use a FIFO.  In RT, you can write all the data points for the FIFO, and then you can extract them one at a time on the FPGA VI and use them as needed to control functions.  In this way, the only time you need to worry about stopwatch the FPGA VI to get out the data to mimic 50 Hz.

  Kind regards

• Subvi in an another Subvi data transfer

  Hi all

  I have a question,

  -Does anyone know how it is possible to transfer data as a double of a Subvi to another sub - VI on the same project file with arthemetrical calculations and encodings in the screws.

  I don't want to use local or global variables. How to use refnum? Can someone help me?

  Thank you

  Alan.

  Hi Alan,

  It's very simple. Just wire the data on an indicator in your first Subvi, then make an exit using the connector pane. Call the two SubVIs in your main program to where you want that data transfer and output of wire to an entry in the other Subvi.

  Another option is to call the second Subvi in the first and just wire the data entry.

• Data transfer Assistant - doesn't recognize palm desktop

  I have a Palm Tungsten e I installed Palm Desktop v6.2 so I could transfer my data on my new Pre phone.  My Pre phone is plugged into the USB port on my computer and I selected the USB key on the phone. I then started the data transfer Assistant, has chosen to run, chose following the Welcome screen, chose following to the login window since I already have my phone connected pre, says next message window ' although Palm Desktop is installed, there is no data to transfer.

  This is incorrect. my Palm Desktop contains data.  Why the data transfer Assistant say that?  The only option is left.  How do I get past this so I can transfer my data?

  I did setup a Google mail account and put that on my phone but it seems not to matter.

  Any help would be appreciated.

  I found the solution to my problem with the DTA does not transfer my data from Palm to my Pre phone.  Here are the steps I took:

  (1) backed up the data of palm on my external hard drive

  (2) uninstalling palm desktop and palm versalmail by using Add/Remove programs

  (3) record deleted program files/palm

  (4) pc reloaded

  (5) installed Palm Desktop V6.2

  (6) synchronize Tungsten E PDA to pc

  (7) made 3 new Palm Desktop: 1 user profiles for the calendar, 1 book, 1 for memos address (got this tip from another validation)

  (8) exported calendar data in the profile calendar, address to the address profile data and data Memo memo profile

  (8) DTA started

  (9) selected a profile suitable to transfer to pre - done 3 times.  Wanted to make sure that each type of data transferred correctly and it also gave me the opportunity to choose where I wanted to save the data

  (10) SUCCESS!

  Hope this helps someone else out there.

• What are the motherboard data transfer rate on a HP G60 - 243CL?

  I bought my laptop HP G60 - 243CL of Costco 3 years ago and continues to function perfectly. Since then I have maxed out the 320 Gig HARD drive. A few days ago, I transferred all my multimedia files of a terabyte of 1.5 external HDD. I also removed and uninstalled all the software that didn't come with the laptop pre-installed. I ran the Disk Cleaner to delete the temporary files... etc. I left pretty much the State of Out-Of-The-Box laptop... I also ran the Windows disk defragmentation application.  Although it has all updates from Windows Update. I doubt that the above mentioned is relevant to my question. The laptop came with two modules of RAM PC2-5300... a 1 Gig and 2 Gig. I replaced both with two sticks of modules/memory 2 GB PC2 - 6400. Other that this hardware upgrade, I've also upgraded to Windows 7 Ultimate edition 64-bit. Now, I am also considering upgrading to an SSD HARD drive. I have of course read/write speeds rise as SSD memory ability increases (depending on model)... for ex: there is a huge difference in the rate of data transfer speeds in a 32 Gig SSD compared to a 256 GB SSD. At least that's what I noticed. I want to install a Gig of CRUCIAL 512 or possibly a CRUCIAL 256 GB SSD. Read/write speeds are respectively of 500 MB/s and 260 MB/s, or 230 MB/sec and 190 MB/s (again, depending on the model). My question is noticed in the SUBJECT field. Can you please help me make a wise decision? I wish that more technical details as possible. Thanks... :-)

  This laptop is equipped with SATA I, which is 150Gbit/s. You will not reach the maximum speed of your SSD, but it will be much faster then your current old school disc spinner. An SSD will always exceed a normal HARD drive. In addition, you should see a bump in battery life as well.

  I hope this helps!
  Sean

• Forecaster data transfer tool work with SL?

  I used the tool for transfer of data to Dynamics GP, but never with SL.  Can you please confirm if it works as well with SL?

  Thank you!

  Found via a search on the web...

  «This application of type Wizard will allow administrators to budget copy the data from the database Microsoft Forecaster in the systems Microsoft Dynamics ERP Microsoft Dynamics AX 2009, Microsoft Dynamics GP 2010 and Microsoft Dynamics SL 2011.»

  Microsoft Forecaster data transfer tool to defer management Microsoft Dynamics | MSX group:
  http://msxgroup.com/Microsoft-Forecaster-data-transfer-tool-Microsoft-Dynamics-management-reporter

  There is not a forum of communities dedicated to Microsoft Dynamics. You will probably get better help

  https://community.dynamics.com/product/SL/default.aspx

  Don

• USB 2.0 data transfer rate is very slow in Windows XP computer.

  Original title: USB 2.0 work very slow

  USB 2.0 data transfer rate is very slow, what should I do?

  Hi MahendraSoni,

  1A USB 2.0 works much earlier?

  2. don't you make changes on your computer before this problem?

  There is a fix for this problem. You can contact Microsoft Customer Service & provide article kb 908673, which contains the fix.

  Hope the helps of information.

• Data transfer Palm Pilot IIIx for Blackberry 8320 blackBerry smartphones

  Thanks to BBSingh for help posting this message. I would really appreciate help from the members of the forum to provide a remedy that is known to work with my Palm and Blackberry.

  My problem is changing my old (December 1999 vintage) Palm IIIx data to my new Blackberry 8320. Years, I have used the Palm in conjunction with a Motorola L7089 (April 2000 vintage) and their IR ports for data transfer; Unfortunately, the phone fell in water and after drying carefully, he could make and receive calls again its screen remains empty, so no need to send SMS and most of the functions. Sales team convinced me to buy the Blackberry, but I'm starting to wonder if I've been conned, as usual with sellers once they get your money that they are not prepared to do anything else. New technology has undone me. In the long task of transfer of several thousand items manually I had recourse to the expertise of this forum.

  A tip I found has been updated the Blackberry Desk Top Manager to v4.6 and it would list the Palm in its devices to transfer data from. I did, but the resulting Wizard at the point of registration of the Palm, but it wouldn't activate a greyed on the option button. DTM for Windows status options System Tray icon COM1 has been disabled. I could allow it, but as soon as this dialog box has been closed COM1 returned to the disabled state. BTW, this is a non sequitur on COM1 Hotsync of Palm transfers data to the PC via COM1 and the Palm software tools works very well also. I closed all the related applications of Palm and it made no difference. I tried DTM 4.5 with the same result. As an aside how the icon options DTM is deleted from the system tray, Windows Task Manager should be used to close the application.

  Another tip say to export data from Palm in Outlook Express, then DTM would need to be OE. I enabled OE reluctantly because it is a questionable product, a favorite oxymoron is "microsoft security", has exported the Palm data in a CSV file, but when they are imported to OE it's garbage. Repeat the exercise but exported as tab delimited and got a worse result. Try to import or the other of these abortions in my Blackberry has been a waste of time.

  Another tip say export data from Palm as VCF which can import BlackBerrys, but did not say how they did it. Palm tools allows only the comma or tab files in the delimited export formats.

  MY PC is a Dell 4600 with 2 GB of RAM and 300 GB SATA HDD, XP Pro SP3, so that all the relevant fixes SP3 post. Windows Firewall software, the AV and malware have been temporarily disabled, and I logged in as administrator too.

  RESOLVED - 98%

  A big thank you to everyone who contributed ideas. Here is the solution to most data transfer: -.

  1. install the Blackberry Desktop Manager 4.5

  2. download the latest tools of Palm Desktop Manager which is 4.1.4 (I used 3.6)

  3. perform hotsync of Palm IIIx with Palm tools

  4. disconnect the Palm Pilot from PC

  5. connect the Blackberry to the PC

  6. open Blackberry DTM and check ' device (PIN): "appears

  7. Select the device switch Wizard, grant conditions and the next screen shows active button for Palm devices, click Next

  8 calendar, addresses, etc. are read, previews of each appear for approval; with the exception of the calendar. Click OK to finish and get out

  9. close DTM, disconnect Blackberry

  10, opening relevant applications on Blackberry to check, all transferred no problem except the grille which was empty

  I can live without the old calendar entries and do not have to manually re-create handfull. So the question is settled.

• Data transfer USB Time Out with large or multiple files at once

  I have a ton of problems with the USB data transfer.  I'm unable to transfer large files or many files at a time.  The external hard drive or flash drive will expire and eventually the pc will 'lose' and will not be able to locate the files I'm trying to transfer.  In addition, I'm not able to sync my new iPad, and I guess that it is caused by the same problem.  The strange thing is, I'm able to use my printer via USB with no problems.

  I found some info on this problem (at least I assume it's the same thing) here: http://social.technet.microsoft.com/Forums/en-US/w7itprohardware/thread/3aae3b66-6a1a-47e8-ad1b-b20b68eaecf8#79ea3219-d76e-40bc-b910-c7d347002e66 and here: http://support.microsoft.com/kb/976972.  When I first discovered on the windows fix, I downloaded and tried to install, but it says that I have already installed.  Clearly, he has not worked for me because I'm still having this problem.  In fact, I started to have this problem with Windows Vista x 64 and have since upgraded to Windows 7.

  Name of the operating system Microsoft Windows 7 Home Premium

  Version 6.1.7600 Build 7600

  Another Description of the OS is not available

  Manufacturer of operating system Microsoft Corporation

  Xxxxxx system name

  System manufacturer system manufacturer

  System product name model system

  System Type x 64-based PC

  Processor Intel (r) Core (TM) 2 Duo CPU E8400 @ 3.00 GHz, 3000 Mhz, 2 Lossnay, 2 logical processors

  Version/Date BIOS Phoenix Technologies, LTD ASUS P5N - D ACPI BIOS Revision 1101, 18/05/2009

  SMBIOS Version 2.4

  Windows directory C:\Windows

  System directory C:\Windows\system32

  Boot Device \Device\HarddiskVolume1

  The local United States

  Hardware Abstraction Layer Version = "6.1.7600.16385".

  User name xxxxxx

  Time zone Pacific Daylight Time

  Physical memory (RAM) installed 4.00 GB

  Total physical memory 4.00 GB

  2.33 GB available physical memory

  Total virtual memory 8.00 GB

  6.29 GB available virtual memory

  Page file space 4.00 GB

  Paging file C:\pagefile.sys

  Can someone help me out here?  Any ideas?  I called ASUS and they sent me a new motherboard, but I'm still having the problem.  Thanks in advance.

  Hello

  Could be a power issue or even the hardware USB itself, although you would on two motherboards
  think it would be extremely rare. The system has other problems, where the power could
  be a problem?

  Try disabling the USB in the BIOS and use a USB card that is not expensive.

  Rob Brown - MS MVP - Windows Desktop Experience: Bike - Mark Twain said it right.

• BlackBerry Smartphones constantly to the research or data transfer

  I have a Curve 8520 and have not had a problem in 15 months. I recently downloaded the upgrade of OS 5. Ever since this download my phone has been continuously research or data transfer, the arrow at the top right continues to blink.  He normally wouldn't be a problem but it is draining my battery, it is durable currently only about 5 hours and I can't carry a round charger with me all day.

  I changed my screen 'manage connectivity' to display the Red arrows next to wifi and blackberry, but this had no effect. The only time stops problem is when I connect to my wifi at home.

  Have no solution? I love my blackberry but need a phone that lasts more than 5 hours before recharging.

  Before the upgrade, it was fantastic.

  Thank you

  I called my service provider more who have confirmed not only the mast near where I work has a flaw have, but those close to me has now, so this may explain why he's trying all the time. When I'm at home I have an internet connection, so there is no need to search.

  I received once, to the minute, that the mast will be set so fingers crossed this will fix it. If this isn't the case, I can be back on here. Thank you for your help. :-)

• Complete data store during data transfer

  Hi all

  I'm having a serious problem with the ability to store data, if I transferred a huge amount of data to a virtual machine through SSH. The data store has a total capacity of 511 GB. During the process of transfer of the virtual machine stops, just when the data store is full. So the only solution is to detach other virtual machines from the data store, but it is not enough.

  We are using VMware ESX 3.5 and virtual machine is Ubuntu Server. Here is the configuration of the virtual machine:

  Memory: 1024 MB

  Processors: 1

  HardDisk1: 6 GB

  HardDisk2: 52GB

  HardDisk3: 230GB

  HardDisk4: 256 GB

  Storage distribution and capacity for the VM:

  # df h
  Size of filesystem used Avail use % mounted on
  / dev/map/vg00-VG00_ROOT
  3.4 G 2.6 G 621M 81%.
  No 495M 220K 495M 1% / dev
  No 500M 500M 0 0% / dev/shm
  No 500M 524K 500M 1% / var/run
  No 500M 500M 0 0% / var/lock
  No 500M 0 500 M 0% / lib/init/rw
  / dev/map/vg01-VG01_home
  5.4 G M 276, 4.8 G 6% / Home
  / dev/map/vg00-VG00_TMP
  1008M 34 M 924M 4% / tmp
  / dev/map/vg00-VG00_LOG
  1008M 53 M 904M 6% / var/log
  / dev/sda1 122 M 118 M 0 100% / Boot
  / dev/map/VG02-VG02_home_dpto
  479G 219 G 236 G 49% / home-Dept.

  HardDisk3 and HardDisk4 are mapped in a (VG02-VG02_home_dpto) LVM volume and its free space is 236 GB. Space free Dtx200: 4, 56 GB. I don't understand why. The problem may be caused by automatic generation VMDK:

  * ficheros00.platform.core.vmdk-> 6 GB

  * ficheros00.platform.core_1.vmdk-> 54 GB

  * ficheros00.platform.core_2.vmdk-> 241 GB

  * ficheros00. Platform.Core.-000002.vmdk-> 24 GB

  * ficheros00. Platform.Core_2 - 000001.vmdk-> 166 GB

  The first time, I got 20G of free space of the data store removing some residual VMs. Then I tried to copy a folder of 15 GB through the network by SSH from another server in files. It was the occupation during the first use: (just to compare)

  * ficheros00.platform.core.vmdk-> 6 GB

  * ficheros00.platform.core_1.vmdk-> 54 GB

  * ficheros00.platform.core_2.vmdk-> 241 GB

  * ficheros00. Platform.Core.-000002.vmdk-> 10 GB

  * ficheros00. Platform.Core_2 - 000001.vmdk-> 164 GB

  It seems 000002.vmdk and 00002.vmdk develop during the transfer of files, but they do not consolidate data. I don't know whether this is a normal behavior. I think that space used for ficheros00.platform.core-000002.vmdk-> 24 GB and ficheros00.platform.core_2 - 000001.vmdk-> 166 GB should be included in the ficheros00.platform.core_2.vmdk - > 241 GB and end of data transfer that they should disappear themselves.

  We calculate the initial free space before allocating hard disks of the virtual machine.

  In this data store, we currently have 2 VM:

  [root@hp585-01 eva4400:-02] # du-sh ficheros00.platform.core./
  472G ficheros00.platform.core

  [root@hp585-01 eva4400:-02] # du-sh lucus01.labo.core_1/
  36G lucus01.labo.core_1

  Any help would be appreciated. Thank you very much.

  Best regards

  Harry.

  Log files, I see that capture files two instant belong to basic disks on the two different data stores on this host ESXi 3.5 Update 3. In any case with being thick implemented basic disks, you should be able to delete snapshots in the snapshot with off the virtual machine Manager. If the virtual machine is still on when you delete the snapshots, you need more disk space for another, temporary snapshot (snapshot to help consolidate)

  When you have removed before snapshots, you did this with the virtual machine power on or power off?

  Turn off the virtual machine will be to free up disk space (the .vswp file is deleted) and merge data from snapshot (with only a single snapshot per virtual disk) in basic disks should not require additional disk space.

  Because the Snapshot Manager doesn't show pictures anymore after the failure of the attempt, you will need to create a new snapshot (to activate the button 'Clear all') and hit use 'delete all '. Because of the size of snapshots, it may require some time to merge data in basic disks, so be patient, even if the GUI user expires!

  André

  PS: Please check that the second VM on the data store does not work on snapshots too, who could fill the data store so that you remove snapshots of the virtual machine in question!

• Need help with the data storage store, local array and network connections

  Need help with my ESXi 4.1 installation

  My hardware:

  I built a server with an Asus P6T whitebox, i7 920, 12 Gig RAM, NIC, Intel Pro1000 PT Quad, 3ware 9650SE-12ML with 8 1.5 TB SATA green in a raid 6 array gives me about 8 + TB with a spare drive all housed within a NORCO RPC-4220 4U Rackmount Server chassis.  I also have a 500 GB SATA drive which will hold the ESXi and virtual machines.

  The network includes a firewall, Netgear Prosafe FVS336G, GS724Tv of Netgear ProSafe 24 port Gigabit Managed Switch on a dhcp cable modem internet service provider.

  I also have 2 old NetGear SC101T NAS disks (4to) I want to connect to the system how some - at a later date have... data on them and want to transfer to the new storage array. I always looking into the question of whether they will work with ESXi 4.1, or I might have to only access it through Windows XP.

  My Situation:

  I have already installed ESXi 4.1 and vsphere client with no problems and it is connected to a dhcp cable internet service.  I've set up host via a dynamic DNS service name give me a static hostname on the internet.  I installed three machines to virtual OS successfully at the moment and now want to first start by creating a multimedia storage server which will use some of this new 8 TB array, then separate data storage for use with a web server small overhead storage and a backup.  It is a domestic installation.

  Help with the data store and network:

  I was doing some reading, because I'm new to this, and it looks like I'll probably want to set up my table via ESXi as a nfs disk format.  Now, the data store is usually in another physical box from what I understand, but I put my readers and ESXi all in the same box.  I'm not sure that the best way to put in place with grouped network cards, but I want to make this work.

  I understand that in ESXi 4.1 using iSCSi LUN must be less than 2 TB, but nfs - I should be able to add a bigger partition then 2 TB (for my multimedia) in nfs, right? or should I still add it separately as a separate 2 TB drives and then extend them to get the biggest space.

  Any suggestions or direct resources showing examples on how to actually add some parts of the table as data warehouses separate nfs.  I know that to go to the configuration tab, and then select Add to storage, and then select nfs. I have not my picture, but it's here that I don't know what to do because ESXi 4.1 system already has an address, should I put the same thing to the new data store array also (will it work?), and what should I use for the name of the folder and the store of data... just do something to the top.  I thought to later install Openfiler (for a multimedia storage using this table server) as a virtual machine, use the table with esxi so that I can access the same storage space with widows and linux-based systems.

  I also know I have to find a way to better use my quad nic card... put in place of virtual switches, grouping, etc HELP?

  Any direction, assistance, similar facilities to sample, suggestions or resources that would help would be great. I did a lot of hunting, but still a little confused on how to best to put in place.

  You must think of VMDK files of large databases with records of random size guest go read some data (a DLL or an INI file), maybe write some data back, then go read other data. Some files are tiny, but certain DLLs are several megabytes. It's random i/o all and heavy on the search time. IO Opsys is small random operations that are often sequential (go read data, write data, go read other data,...) so that deadlines are critical to the overall performance. That's why people say OPS are / s of reference and forget the MBs flow. The only time where you bulk transfers are when you read media (ISO files).

  Well, now forget all this. Actually the disk activity will depend on the specific applications (database? mail server? machines compiler?), but the above is true for boots, and whenever applications are idle. You should see the profile to know.

  RAID 10 is faster (and often more reliable) than RAID 5 or RAID-6 except in certain specific cases. In General RAID 10 is ideal for many random writes, since the calculation of parity for RAID-5 and - 6 adds to the overall latency between command and response - latency is cumulative if a little slow here and a little slow it adds up to a lot of overall slow synchronous especially with e/s on a network. OTOH RAID-5 and -6 can produce faster readings due to the number of heads, so you can use it for virtual machines that transfer bulk. Test. You may find that you need several different types subdashboards for best results.

  You said 3ware, they have some good grades on their site, but don't believe it. With my 9650 that I found myself with only a couple of their recommendations-, I put the (simple) table for allocation size 256 k, nr_requests at 2 x the queue_depth and use the planner date limit. I had the habit for the Ext4 file system formatted with stride and stripe-width synced to the table and used the options large_files with fewer inodes (do not use the huge_files option unless you plan to have single VMDK files in the terabyte range). Use a cache of great reading in advance.

  Virtual machines use VMDK files in all cases except raw iSCSI LUN that they treat native disks. VMDK is easier to manage - you can make a backup by copying the file, you can move it to a PC and load it into another flavour of VMware, etc. There could be some features iSCSI to your San as a transparent migration but nothing for me. NFS has less chatter of Protocol if latency lower times to complete an operation. NFS is good to read and write a block of data, that's all it boils down to.

  UPS is good, but it won't help if something inside the machine explodes (UPS does nothing if the PC power supply goes down). If the RAID card has an option for a battery backup module, so it can contain some writings in memory and may end up the disk i/o after replacing the power supply. 3ware also limits the types of caching available if help is not installed, and you get just the right numbers with the module.