Maximum latency of VSAN light

Similar Questions

• Maximum latency to read/write for PCI-DIO-32HS with NOR-DAQmx?

  I was asked to evaluate using the PCI-DIO-32HS and NOR-DAQmx on MacOS X to essentially close a control loop.  My first concern is whether or not it can run fast enough.

  So my questions are: what is the maximum latency from the moment of receiving a signal strobe reading data from external hardware, then read a single 16-bit sample and sending it upward by NOR-DAQ to a user space application?  And, similarly, what is the maximum latency of sending a unique 16-bit value from a space application user down through NOR-DAQ, then write a port and affirming a strobe signal of external-data writing material?

  Thank you.

  Hi AliasMe,

  Thanks for posting and welcome to the Forums EITHER!

  Do you need to process the data in the software and generate a value on this basis?  DIO-32HS (alias PCI-6533) offers in the buffer of inputs and outputs, but you'd have a latency in your control system relying on the OS to do treatment.  Since this period is dependent on the system, I can't give a specification for the amount of time it would take.  However, integrating data in memory, processing and writing back to the card would likely be on the order of several milliseconds.

  Generally, we recommend FPGA in situations of control like this, so you can do all the processing in hardware.  However, if provide you more details on your request we can look into all the options available.

  -John

• Tecra S10 will not start - no response

  Hello

  I have a very simple problem with my laptop.
  I was browsing the internet and suddenly it turned off, crushed. Times that whenever I press the power button, it does nothing other than to run the fan, I guess at maximum speed, and the light that indicates the power flashes twice green and orange... If I live it for an hour, he keeps making the same signal and nothing else.

  Any ideas?

  Thank you!

  Hello

  Looks like you have a hardware problem serious if the RAM is not affected, then a hardware like motherboard, CPU etc could be damage
  It s good choice for contacting ASP guys could run diagnostic tests to find out what is the problem

• Automatic calibration of the brightness

  Hello

  Is it possible to calibrate the automatic brightness on the iPad Pro?

  I have two identical Pros iPad and iPad Air and an iPhone 6 +. Auto brightness on each of them. All devices are on iOS 9.2. I noticed that among the Pros of the iPad is always better than the other and the other two aircraft. He has also reached the level of maximum brightness for ambient light lower than other devices. I fear that this would have a negative impact on the overall battery life.

  To illustrate this phenomenon, three pictures are a test I performed at different, relatively low, ambient light intensities. I started from total darkness, then increased gradually, the ambient light. One can easily notice the iPad Pro in the upper part is always brighter than the rest. One can also notice that the brightness slider is at different places for the two Pros from the iPad.

  Is there anything that could be done for the second iPad Pro have the same brightness auto like the rest?

  Thank you for your help.

  Michael

  

  Anyone, please?...

  Thank you.

• WARNING 200015 took place in Scripture DAQmx

  Hello

  I'm trying a sync multi function HAVE AO with USB-4431. The program works well, but when I stop the program, it gives me a warning

  "When writing to memory buffer during a regeneration, the actual data generated may have alternated between the old and new data." In other words, while the pilot was replacing the old model of the buffer with the new model, the device could have generated some new data, while a part of the old data and then a part of the new data again.

  "Reduce the sampling frequency, use a larger buffer or refer to the documentation on DAQmx write me for more information on other ways to avoid this warning.

  My sampling rate of AI is 10000 and AO is 5000

  I'm not sure what to change and where?

  Can anyone enlighten me to what I would do to this warning does not occur

  Kind regards

  Nitin

  Hi Nitin,

  Try to use non-regeneration to ensure that the output data is not a mixture of old and new.

  The latency will be proportional to the number of samples that have already been written that still need to be timed.  4431 has a FIFO sample 4095 that cannot be reduced.  In addition, there is a DAQmx buffer in RAM which is configurable by the user, it defaults to the number of samples in your first call to write DAQmx.  That is why the maximum latency will be:

  (4095 + DAQmx_Buffer_Size) / Sample_Rate

  To minimize latency, you need output 1) at a relatively fast pace minimize the effect of the FIFO onboard and 2) limit the amount of data you write per loop iteration (although make large enough so that you have no negative).

  Best regards

• Hyper-V 2012-two questions

  We begin to use Hyper-V 2012 some of our smaller sites who do not have the infrastructure for ESXi. These sites will be equipped with two small MicroServer and a handful of VM. MHM must SCVMM to manage Hyper-V hosts? The sites are scattered throughout the world and have marginal internet connections with high latency. What is the highest latency/connection speed slowest MHM that can work with to manage Hyper-V?

  Hello

  SCVMM is not necessary for the Multi-hypervisor Manager to manage Hyper-Vs.

  Multi-hypervisor Manager is a component of VMware vSphere (vCenter Server and vSphere specifically Client), so you need only this set up to be able to add your Hyper-V hosts in your inventory and start managing.

  On the issue of the maximum latency of the connection between the Multi-hypervisor Manager and Hyper-V hosts - so far the engineering team did not test thorought for that matter, if these data are currently not available in the product documentation.

  Kind regards

• Profiles and presets

  1. What is the specific difference between the 2?  Is a profile purely on color? (as the sliders in the profile pane only relate to adjustments of color).

  2. a preset can be applied to the import (for example, I am now under a "sharpening capture" preset upon import, registered for different cases and selected in the import menu).  However, a profile applied by default or not, because I can't find an option for it in the import - then it must be applied manually if I wish?  Or 'Adobe Standard' was applied by default, and I have to live with it as a starting point?

  Grateful for any thoughts - this seems to be a little wrinkles that has very little discussion 'out there' on it and now is bugging me, as I was tweaking my import process.

  J

  Vision of the world,

  The profile is specific to your camera. Adobe has created several profiles for each device supported in Lr.

  LR selects automatically the profile for your camera.

  Apart from this, you can create your own profile for your camera.

  Either you do it right "in the eye", that is, you set the sliders in the camera Calibration Panel. See here for more information: http://help.adobe.com/en_US/lightroom/using/WS939594D8-4279-41b4-B8E9-B06BC919EC7C.html

  Or you do - more involved, more expensive, but more precise - when taking pictures of a color checker and profile by building a custom for your camera.

  See here (post # 11) how to: http://forums.adobe.com/message/5219619#5219619

  But I think you're going way overboard with this.

  Unless you regularly take photos where color fidelity is an absolute must in a studio under a controlled light you can just go with the profiles that are already provided in Lr.

  A profile of the camera is only generated for maximum two specific colors (light temperature). This means that it is OK for these two temperatures of light. In the photography of everyday we meet light temperature light colors that is evolving. If a profile of the camera is not so useful in real life.

  What you can do is this: get a map grey (a piece of cardboard with your neutral gray - available in stores for the right photo) and place it on the first picture you take in a certain place at a certain time. Then in Lr, you take the WB eyedropper and click on the visible registration on your photo.

  This will adjust your WB at the same temperature and light color present when you took the picture.

  But I tell you one thing: often you will not like what you see when you do this. The photo can always 'not good' air, and you will then adjust the WB manually to your liking.

  Don't be obsessed with these technical things. A good photo is not obtained by doing the things scientifically. A good photo is one that expresses your vision of the artist.

• Redundancy needs

  Hi all
  
  Is it necessary to provide redundancy for the following types of files in a database?
  1. archiving of log files
  2. log files
  
  We already have 2 sets of logs (loga, JournalB) under the disks of difference. What will happen is it will for example. disk containing the files loga crushes? Will this affect the continuous availability of the database?
  
  What thought to newspapers from archives files and logs under the same disc? Will this affect performance?
  
  Thank you
  Raymond

  user12187090 wrote:
  Hi all

  Is it necessary to provide redundancy for the following types of files in a database?
  1. archiving of log files
  2. log files

  Yes, there is, because the two files are required for recovery. So, it would be a good idea ot have more than one copy of these files.

  We already have 2 sets of logs (loga, JournalB) under the disks of difference. What will happen is it will for example. disk containing the files loga crushes? Will this affect the continuous availability of the database?

  If you would break the log file, it would depend on what state? It would be a serious trouble to lose a current log file. Please check the documentation of oracle for your version in the http://tahiti.oracle.com and in that silence, guide backup and restore that speaks many cases.

  What thought to put the files from archive log & log under the same disk files? Will this affect performance?

  Have you ever read these files in normal operation. But they are written continuously. So it is better if you plan to put them together, carefully evaluate you the maximum latency you can have from storage, and it should be a fast storage.

  HTH
  Aman...

• VSAN in nested environment – maximum configuration

  Hello

  I used vSphere 5.5 U2.

  According to the maximum of Maximums, components Configuration Guide for each host VSANS are 3000.

  However, I was building VSANS in nested environment, and I checked the number of component.

  In nested_vsan.log, it seems that the maximum components for each host VSANS are 1500.

  Why?

  Maximum components per host VSAN change material?

  Thank you

  The amount of memory available on each ESXi host plays in the total number of supported components. In light of these are 'virtual' ESXi servers, they are probably configured with a memory of the minimum quantity and thus the numbers will be different from the maximum support that is 3000.

• VSAN Flash read the maximum size of the cache for per VM

  is it possible to configure which only so much data size of a particular VM in VSAN environment should be used for read cache maximum maximum flash?

  No, the booking to read flash cache is based on a percent of the size of the VMDK.

  that is a 100 GB VMDK and a % 10% read cache, I will reserve 10 GB of SSD for this virtual machine for purposes of reading flash cache.

  This is the only control on flash, you've read cache.

• What is the maximum size for a catalogue of ambient light

  I shoot RAW, the files of 24mg. I organize via LR but do any development in Camera Raw and Psalm

  Any guidance anyone?

  Thank you

  
  Sarah M

  Hi Sarah,.

  Lightroom can handle a large library, depending on your system configuration and with a regular optimization of the catalogue, you will only have the performance issue.

  See a thread detailed size Maximum of the Lightroom Catalog

  Also move this thread to Photoshop Lightroom

  Kind regards

  Assani

• Separate VSANS / Mgmt / Vmotion traffic on different switches

  Hello

  I want to build a hybrid Cluster VSAN 4 knots (6.x).

  I have 2 x 10GE switches dedicated for Taffic VSAN

  also 2 * 1GBE switches for management / VM / Vmotion traffic

  Each host has 2 10 GbE NIC, 1 uplink for each of 10GBE switches

  Each host also has 4 * rising 1GBE, 2 for each of the switches 1GBE

  My idea is to use 10GBE just for VSAN traffic (separate DVSWitch, an asset, a standby) on each 10GBE switch

  Also to use 2 Ports on the management traffic (separate DVSWitch, an asset, a standby) on each 1GBE switch

  And use 2 Ports on traffic VM (separate DVSWitch, an asset, a standby) on each 1GBE switch

  VMotion traffic would be on the same rising as management, but active / standby vice versa

  Question: is - this possiuble / useful to connect vmotion for 10 GbE uplink ports (active standby vice versa VSAN traffic)

  I appreciate any useful comment on my scheduled install (I have no boy networking)

  Couple thoughts.  You can run several vKernels to VSAN and vMotion (allowing one on each switch).  To VSAN, use of VLANS / subnets (one on each switch offers you a pleasant has / B space) while vMotion must have all the vkernel on the same subnet 2 ideally layer.  This allows for maximum reliability, in theory faster failover and access flow.  This also has the advantage of if your cluster is not big (bigger that say 48 ports) you can avoid having multicasting, leaving the switch (usually requires more quarrels with the cats of network) as each switch TOR will have its own VSAN network.    Then use the NIOC for butterfly and protect the traffic between them.  Now the NIOC is not as effective as SR - IOV (but its good enough) to 100% and you will maximize your investment 10 Gbps without swamping the things.

  • Network management interface VMkernel = explicit order of Fail-over = active P1 / P2 ensures 10.1.1.1/24 VLAN 100
  • vMotion VMkernel - an explicit order of Fail-over = interface = active P1 / P2 ensures 10.1.2.1/24 VLAN 101
  • vMotion VMkernel-B interface = explicit Fail-over order active = P2 / P1 ensures 10.1.2.2/24 VLAN 101
  • Machine virtual Portgroup = explicit Fail-over order = active P1 / P2 ensures 10.1.2.1/22 VLAN 102
  • Virtual VMkernel-A SAN interface = explicit order of Fail-over = active P1 / P2 in standby (or not use) * 10.1.3.1/24 VLAN 103
  • Virtual interface of SAN VMkernel-B = explicit Fail-over order active = P2 / P1 Eve (or not use) * 10.1.4.1/24 VLAN 104

  In this case, VLAN, 100, 101 and 102 will be on all switches.

  * 103 and 104 could be configured to only exist on each switch (has / B isolation, failover do not switch on the value and set up on both) or exist on both (and use standby) as described.  This design will focus on maintaining the communications host-to-host on the same switch (decreases complications with multicasting and reduces its lag time as VSAN traffic does not have to jump to another switch unless you run out of switch ports, but now with dense 40Gbps past using 10 Gbps break out in theory you could hit the limit of 64 nodes on a single switch).

  I'm curious of anyone thoughts on just disable the failover and forcing them to each core sticking to its switch (and accepting loss of communication) on this vKernel in the event of a switch failure.  I want to do some tests with both laboratory and to test the failover of the switch/path between both of these configurations (compared to a configuration unique vkernel).

  However, some people prefer a 'simpler' configuration if (and I'm not opposed to that).

  Duncan drawn active passive failover configuration with of the vKernel unique for each host.

  In theory not being not not as dependent on the NIOC for insulation of storage should help the latency for the short bursts it takes to NIOC launch design active active vs.

  Control IO SAN and virtual network

  • Network management interface VMkernel = explicit order of Fail-over = active P1 / P2 ensures
  • vMotion VMkernel interface = explicit Fail-over order = active P1 / P2 ensures
  • Machine virtual Portgroup = explicit Fail-over order = active P1 / P2 ensures
  • SAN VMkernel virtual interface = explicit order of Fail-over = P2 active / standby P1

• Omen of HP: HP keyboard light Isuues Omen

  Hello

  Recently bought a harbinger of HP, in the first few weeks of use worked fine but recently the backlit keyboard stopped ligting upward, the only lights that work now are the power button and animated speakers all keys, including the macro keys now have no backlight. First, I tried to find out if it was a problem with the control center of HP Omen, but all that happens is when changing the color, it turns on for a matter of half a second, then the blip again, I have the LED on its maximum intensity and have tried all of the colors, the fact that it lights up for a split second then off again makes me doubt is a problem with the lighting system and well more still to do with windows. I tried to uninstall the control center of Omen and reinstall it but that had no effect at all. I was wondering if anyone had suggestions for a way to fix it because it is an important part of the laptop that is not working and a major inconvenience for me as I play in a room with a very low light, so have a backlit keyboard for me is essential. Any help would be appreciated!

  Dear Harrycypress101-

  I understand that the backlit keyboard of your new HARBINGER does not work.  I did a little research and apparently, after a BIOS update, the keypad backlight turns off.  I don't know if you have made an update of the BIOS, but by pressing F5 to turn it back on.

  If F5 does not resolve the problem, then check that your OMEN is updated using the document Support from HP using HP Support Assistant (Windows 8).

  If none of these suggestions resolve the issue, you may contact HP to service. Since your OMEN is new, it is still under warranty. Check the status of your warranty by going to check the status of your warranty.

  Good luck

  DHTP

• White flashing light on my Tower in early 2008

  Hi people,

  I have a Mac Pro 2008 beginning 2.8 Mavericks 10.9.5 running 2xquald.  Since the update about a month ago my Mac is acting strange.  During the race, fans will ramp up to maximum and keep doing this until I hold the power button to turn off.  After a reboot, things return to normal.  The my screen started to freeze, and other times the Mac will only die and restart itself.  More recently, the screen froze and fans exploded, so I held the power button until it turns off, but when you restart, I had a power light flashes and it wouldn't restart.  I tried to wait a few minutes and after several attempts, restart got the same results.  Then I unplugged all devices and it restarted.  I have shut down once again, plugged in, and it restarted correctly.  Is an OS problem or a hardware problem?  Thank you!

  Please after the release of EtreCheck

  <https://discussions.apple.com/docs/DOC-6174>

  <http://etrecheck.com>

  It is possible that you have some installed 3rd party additions that don't play nice with the Mavericks.  This happens often.

  You can also try to start in safe mode

  <http://support.apple.com/kb/ht1564>

  It's just an experiment, but it won't load 3 additions of party, and if things are more stable in safe mode is a very strong indication that the 3rd party software is the first cause.

• Satellite L55-C5272 - automatically display light changes

  Toshiba L55-C5272

  Windows 10

  Automatically display light changes. Apparently at random. Some days she changes. Others, that it is not, in the exact same environment.

  Adaptive brightness is set to Off.
  Planning parameters are set to 100% brightness (regardless of the battery, plugged, etc..)
  Display driver is up to date.
  No sensor light in this unit.
  Eco mode is set to off.
  Integrated webcam is disabled.
  Intel Graphics Control Panel is set to Maximum performance.

  Would appreciate ideas.

  (On a side note. It's really, really frustrating. It would be so great that "innovative" really thought through the ramifications of features such as adaptive brightness goes haywire. I have to constantly stop and let my eyes adjust to the light. Why build a feature like this? How many people benefit? "Innovation is looking for a need, and then by creating something new to solve - do not have back on a Chair and thought" wouldn't be cool if the monitor automatically adjusted brightness! "People ask for this? Please, Toshiba, Microsoft and the who, to think before creating features that aren't necessary and completely destroy the user experience if they don't work well.)

  downgrade to driver intel original, and adaptive brightness adjustment... will work with newer drivers from the site of intel that setting does not work.