vSphere Read Cache - no disc is

Similar Questions

• vSphere 5.5 Flash Read Cache

  Hello

  I've updated my vCenter to 5.5 and of course one of the interesting improvements is read Cache Flash. I installed the SSDS and could see in vSphere client Web and must now assign space to read flash for virtual machines.

  How would you do the assignment of value to flash for virtual machines read cache. I know that it discharge of the I/O to the San, but don't know how to calculate the number in the UK for actually entry.

  Does rely on the size of vmdk machine what kind of storage access.

  How do you calculate how much read cache to give a particular virtual machine or if it's trial and error

  Thank you very much

  This will give you a better understanding and best practices to the size of the cache in your environment.

  http://www.VMware.com/files/PDF/Techpaper/vfrc-perf-vsphere55.PDF

• Tecra A8: Mat * un DVD - Ram UJ - 841 s is not read / burn any disc

  Hi all

  I have a laptop Tecra A8 with Mat * un DVD - Ram UJ - 841 s. This device is not read / burn any disc. However, Mat * one bed the recovery CD at startup.

  I tried everything: I deleted the registry entries (lower and upper), I uninstalled Ant again once the driver installed... but it doesn't work. Any help?

  Best regards

  Ribera.

  Hello

  In addition to the fact that you can boot from the Toshiba Recovery CD, I think that it s a problem of training material
  I think it's a matter of calibration of lens readers possibly the lens can not calibrate correctly in the right position of s, and this is why the drive can't handle the inserted media.

  This could be the worst case, because this fault is repairable by replacing the drive.

• Equium U400 is not reading or burning discs

  My Equium U400 is not reading or burning discs.
  Anyoe can help please?

  Hey,.

  OK, your laptop isn't able to read or burn discs, but does that mean exactly?

  Your drive is listed in Device Manager?
  =>, You can try to remove and restart your laptop.

  Do you see yellow exclamation points in weird Device Manager?
  -Online check the Microsoft Knowledge Base. It s known issue.

  You get an error message if you try Brüning a disc?
  -Online try another program like CD Burner XP burning

  Have you checked the Web from Toshiba site for an update of the firmware?

  What operating system you are using?

  As you can see, a lot of answered no question they would be important in helping you.

• CD DVD player: can not read data DVD discs that burned same machine

  Laptop with Windows Vista cannot read data DVD discs that burned same machine.  The discs work on another computer.  My laptop will read CD disks, he did, and it will play DVD movies. What's wrong?

  Hello

  You have disk problems as the CD/DVD is actually 4 discs in 1 case (CD &)
  Burn DVDs and CDs and read DVDs). So it is not unusual for 1 or 2 parts to no function
  while others are doing so correctly.

  Burning at low speed, or by using the master could help. A CD/DVD cleaner
  could help.

  Brand of the CD or DVD drive can also be the problem. Low quality (cheap brands) are always
  issue.

  CD/DVDs have a tolerance + - and your can read/write on the outside edge
  tolerances of the disks. They may be delivered, but it is usually cheaper to replace
  the reader.

  Several good info here:
  http://Club.myce.com/

  CD/DVD units
  http://www.myce.com/storage/

  Notes on the troubleshooting and repair of readers of compact disks and CD-ROM Drives
  http://www.repairfaq.org/repair/F_cdfaq7.html#CDFAQ_014

  ===========================================

  This troubleshooting might not help if there are problems of alignment and wear it
  is worth it.

  Step 1: Please do all the same underneath if you did some before as is often total
  a process that solves the problem.

  Try this - Panel - Device Manager - CD/DVD - double click on the device - driver tab.
  Click on update drivers (this will probably do nothing) - RIGHT click ON the drive - uninstall.
  RESTART this will refresh the default driver stack. Even if the reader does not appear to continue
  below.
  
  Then, work your way through these - don't forget the drive might be bad, could be a coward
  cable or slight corrosion on the contacts (usually for a laptop) and other issues.

  Your CD or DVD drive is missing or is not recognized by Windows or other programs
  http://support.microsoft.com/kb/314060 - a Mr Fixit

  Try this fix manually if the Fixit 314060 does not work
  http://www.pchell.com/hardware/cd_drive_error_code_39.shtml

  Your CD or DVD drive is missing or is not recognized by Windows or other programs-
  a Mr Fixit
  http://support.Microsoft.com/kb/982116

  The CD drive or the DVD drive does not work as expected on a computer that you upgraded to
  for Windows Vista
  http://support.Microsoft.com/kb/929461

  When you insert a CD or a DVD, Windows Vista may not recognize the disc
  http://support.Microsoft.com/kb/939052

  Your CD or DVD drive cannot read or write media - A Mr Fixit
  http://support.Microsoft.com/GP/cd_dvd_drive_problems

  CD/DVD drive does not appear in Windows Vista, or you receive this error in Windows
  Vista installation after booting from the DVD (AHCI)
  http://support.Microsoft.com/kb/952951
  Drive CD - R or CD - RW Drive is not recognized as a recordable device
  http://support.Microsoft.com/kb/316529/

  Hardware devices not detected or not working - A Mr Fixit
  http://support.Microsoft.com/GP/hardware_device_problems

  Another possibility is that the cables are loose. Remove ALL power, then check the cables
  both ends. Remove and replace, do not just tight. For laptops, you can often clean the
  power and data of the contacts with a pencil eraser.

  Some DVD players do not use the Windows default drivers so check with the system manufacturer
  and the manufacturer of the device to see if there is a firmware or drivers for your drive if necessary.

  ===============================

  Step 2: You have disc problems as the CD/DVD is actually 4 discs in 1 case (CD &)
  Burn DVDs and CDs and read DVDs). So it is not unusual for 1 or 2 operational parts while
  others do it properly.

  Did you follow the Troubleshooting Guide for the reader who still does not work? There are
  the entries in registry that the troubleshooter does not solve and those who "might" be the cause.

  Check with your Maker system and a device for the two possible firmware updates and
  the correct registry entries for your car.

  Here are the keys that I of course are those in question - for the subkeys of the CD/DVD drive
  as there will be other subkeys in these keys. Do not forget to ask specific keys involved as well as
  the parameters.

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\IDE

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\0001\System\CurrentControlSet\Enum\IDE

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\ {4D36E965-E325-11CE-BFC1-08002BE10318}

  -----------------------------------------------------------------------

  You can probably find more info here and maybe even the exact registry for your CD/DVD settings
  drive from someone with the same model.

  Forums - a lot of expert real help
  http://Club.myce.com/

  CD/DVD units
  http://www.myce.com/storage/

  Use DevManView to locate the CD/DVD in the registry (be careful and do a prior Restore Point)
  nothing change) - find the DevManView device and then make a right click on it free in RegEdit.

  DevManView - free - an alternative to the standard Windows Device Manager, which displays all the
  devices and their properties in flat table, instead of the tree viewer
  http://www.NirSoft.NET/utils/device_manager_view.html

  I hope this helps.

  Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle=""><- mark="" twain="" said="" it="">

• SlimType DVD A DS8A5SH - could not read Blu - ray discs

  Hello community...

  My machine is ASUS A43S laptop and the drive Slimtype DVD A DS8A5SH CD Rom...

  Well, I tried to play the "Blu - ray movies" and I get on the Properties tab... Unknown disc...

  NOTE: DVD movies will play fine...

  So, I tried a few things...

  (1) installed the VLC Blu - ray playback (of course) software

  NOTE: VLC player works great for DVD movies, but won't play Blu - ray...

  (2) I tried to update driver... but the driver is updated... Of course, I look on the internet and my drive is the best. Microsoft 6.1.7601.17514 release date: 21/06/2006

  And nothing I did make my CD ROM drive play Bul - ray...

  Community suggestions...?

  I am inclined to believe that the Slimtype DVD A DS8A5SH just isn't a Blu - ray player...

  Thank you

  Hello Russell,

  Thanks for the reply.

  I appreciate your patience.

  It is regrettable that the CD/DVD drive cannot read Blu - ray discs.

  However, please do not hesitate to answer, if you have other problems with Windows.

  Thank you

• Flash Read Cache

  Hi, we move to ESXi v5.5 and currently have for most blades IBM HS22/23 servers.

  I would like to understand what is Flash reading comes back and use. During the review of the current literature, I do not understand what it is and what materials it applies. Can someone just explain frowhat type of material, she applies and benefits (without URL to docs)

  Thank you

  The long and short of it is Vmware puts another piece on the hypervisor requesting your VM I/O buffers SSDS Rapids or flash cards for faster reads/writes of your San.  An easy way to think of this is that if you have already configured a disk to disk-to-tape configuration.  Dump you everything on the drive first for speed (several jobs at the same time, writing more Rapids, ect, ect), then send it to tape.  Its kind of the same idea with Flash Read Cache.  e/s of the VMDK is buffered or sent to the flash cache and sent to the San to increase performance.

  Page 6 of this pdf wmare has a good diagram of it:

  http://www.VMware.com/files/PDF/vSphere_55_Flash_Read_Cache_Whats_New_WP.PDF

  Hope this helps

• Tent for 3 days of bridge to work. I was told it could read cache - tired everything including deleting and reloading - still getting the same message. PL; help ease that I am on a deadline. Bob

  Cannot read the bridge cache

  Tent for 3 days of bridge to work. I was told it could read cache - tired everything including deleting and reloading - still getting the same message. Computer restarted several times as well. Please help me I'm on a deadline. Bob

  Let me guess: you're under Windows?

  Have you tried a different cache folder location? Because Windows can limit the bridge to access the folder that you have now.

• Carpet * a DVD-RAM UJ-820 s do not read or burn discs

  Hi, I'm Natalie and I need help with my problem that occurs.

  Operating system:
  Windows XP Home Edition
  Laptop Toshiba Satellite
  Model A75-S229
  Multi recorder drive: CD and DVD

  The problem that happens is that I can not get any CD or DVD to work when I put them. What is happening is he's trying to load but makes the window "Not responding", unless I have the disc, then everything will be fine. What is also involved, is that I can't burn discs at all, at any speed.

  Also, I would add, when I go to my computer > right click on the DVD - RAM drive > properties and under the general tab it states:

  Type: CD player
  file system: unknown

  I don't know if that's the problem...

  Can someone help me?

  HI Isabelle.

  Please check in the Device Manager to see if there is a problem with your optical drive. Normally this will be displayed as an exclamation point against the device.

  The fact that the file system is listed as "unknown" is because the drive could not read the format of the disc so that Windors Explorer cannot identify any file structure.

  Your problem could be something very simple like a lens dirty or a faulty device driver. It is not easy to tell from your description exactly what can be wrong, but I would say you try some of the easy options so try first to clean the lens, and if this does not resolve your problem, then try to remove the drive (Device Manager) and reboot for the device will be installed new.

  If all else fails, you will have checked player be an authorized Service partner.

  Kind regards

• Qosmio G30-201 is unable to read the hd discs

  I cleaned the lens of the hd player and the discs are all clean and withought scratches. The reader will read audio CDs and regular CDs, he also wrote for the dvd and cd discs.

  When I insert a HD disc in the drive it just continues to produce a whiring sound strang and will not play.

  I played the hd movies on the laptop when I got it first, but he is unable to read it now.
  Help, please.

  Steve

  Hello

  so, if the player has played before that should always work, or? :)
  Installed a few programs that could possibly affect the playback of HD discs? It might be a good idea to recover your system, perhaps to issue it s just a software.
  Otherwise, if I were you, I´ll sent my machine to a service partner chartered for a material balance of health. (You still warranty?)

  Welcome them

• Toshiba DVD - ROM SD-M1612 cannot read a burned disc

  Hello

  I have a problem. I wonder if anyone can help please.
  I tried to view a DVD-R on my pc using my dvd player which is a Toshiba DVD - ROM SD-M1612, but it keeps giving me the same error message:
  Windows cannot read from the disk, it is may be corrupted or in a format that windows recognizes.

  The disc was burned on another computer and plays very well on this and on a normal dvd player, so I excluded that the disc is damaged.
  After talking to some people, they suggested me update called firmware?
  I looked at this and can't find it anywhere on Toshibas support or downloads pages feel like looking for a needle in a haystack :)

  I have provided this figure as it apparently is the firmware that is currently installed on the pc.
  I wonder if anyone knows where I can get the current version and if it will help me perhaps discovered the burned DVD-R.
  TOSHIBA_DVD-ROM_SD M1612___1806___\5&C21666E&0&0.0.0

  Thank you for your time and help

  Derek

  Hello

  Sometimes this happens to me also, and to be honest it's nothing unusual.
  All CD or DVD is supported by the CD/DVD drive.
  I put t know what laptop you have, but in most cases the user's Guide provides information and details on the mids compatible and taken in charge.

  I ve experience with TDK CD and DVDs and I convinced Mr. I ve tired different CDs and DVDs from various manufacturers and all were not entirely compatible.

  The update of the firmware is not always a solution, but it is sometimes useful to improve compatibility. The update of the firmware can be downloaded from the Assembly of the computer.
  It seems that Toshiba provides updates of the firmware for the series of notebook clean on the European driver Toshiba page.

  To cut a long story short, try a few different CD or DVD from different manufacturers and check what support is no longer supported.

  Good bye

• Error: The DVD player won't read or burn discs. TS-L633R CD-DVD player. Laptop HP DV6-3120US. Win 7.

  The product name and number:

  HP Pavilion dv6-3120us

  OPERATING SYSTEM

  Windows 7 Home Premium. 64 bit.

  Error message

  "Insert a disk; Insert a disk in drive E:. "

  Background

  Windows 7 system pre-installed on recognized computer CD/DVD ROM drive for about 3 months. Malware corrupted operating system. I reinstalled the OS disk from the recovery partition. CD/DVD ROM drive could not read or write, and I can not restore the old files or save the current configuration via the CD/DVD-ROM drive. All Windows 7 drivers, and hardware updates seem to be installed and up to date as of 04/10/2011.

  Troubleshooting steps

  1 attempted to play audio CDs. Same error message.

  2 tried to read data CD-ROM. same error message.

  3 tried to read DVD - ROM data. same error message.

  4 Write DVD ROM has failed. Same error message.

  5 re-loaded OS 2nd time. No change. Same error message.

  6. checked with HP Support Assistant. DVD drive is recognized but not the media. No change.

  7 checked Device Manager. DVD player is recognised as TS-L633R.

  8. driver is cdrom.sys version 6.1.7600.16385. Clicked on Update Driver, no change.

  9. I tried the uninstalling and reinstalling the driver. No change.

  10 enabled BIOS. Processor AMD Turion II P540 Dual Core 2.4 Ghz. BIOS seems to be up-to-date, version F.27.

  11 BIOS lists bootable CD/DVD-ROM drive. Reordered the first road and used Knoppix Linux boot boot disk, no change. Windows starts instead.

  12 review of registry for "filter" and "lower filter" entries.  Checked registry 4D36E965-E325-11CE-BFC1-08002BE10318. No upper or lower filters entries in current filter. No change.

  13 Ran 'hardware and troubleshooting of devices. " It cannot detect the cd/dvd. No change.

  The drive has power, WEAVES, is recognized by the BIOS and Windows 7. However, it does not read or write CD ROM or DVD ROM discs

  I'm out of options.  What to do to make the drive to cd/dvd rom read and write CDs?

  

  Thanks for your help.  Matt

  Received a new DVD/CD ROM today S of Ben and Alan at HP today.  The drive was manufactured in July 2011 and seems to have the same model number information. The old one was from December 2010.

  Installation took about 10 minutes to the included instructions, and the player now plays all CD and DVD media.  Thanks to the HP support for replacement of equipment warrantly quick fix.

• drive Blu - Ray dv8t-1100 is no longer reads Blu - Ray discs

  The OS is Win7 Pro. The Blu - Ray player will read all CD and DVD and BD with no video content. I updated and verified that all software audio/video (MediaSmart, Media Center, Media Player, DivX and RealPlayer) are up-to-date. The BDs are not recognized by any program, and I get a message to insert a floppy disk. I understand that not all of the comics will play on all players, but these are all discs, I've played several times before. If you need additional information about the configuration of the system, let me know and I will provide. Thanx

  I use Norton Security Suite for Comcast. The solution to my problem ranks right up there with "is it plugged in?

  I took a small lint cloth and GENTLY wipe the blue read/write head. Problem solved! Please be others with the same problem, try this first. It can save a lot of upgrade.

  Thanks for your reply.

• CD player will not read a certain disc.

  I recently bought a game. Just today, in fact (new, not used) and put it in the disc drive. He did... some sounds as if she was trying to read it, then everything just stopped. About a month ago a few weeks ago, I bought Starcraft 2. It does the same thing. -Now, it reads the disc. I don't know when he started to read the disc that I downloaded the game online using my cd key.

  But the game I bought today, has not only active. Medieval II: Total War.
  Most of the discs, I found that she reads. And the whole thing of Starcraft 2, rather confused me. I, as said, don't know not when he could've started reading the SC2 disk but it is now, apparently, as I got it in my hard drive today and he was actually showing upward into the player on my computer, so I know it is the reading that now.

  When I go in my computer after waiting for he can read this disc, he simply keeps the default icon. When I click on it, it tells me to insert a disc, as if there no one there already.

  This is... really weird. My CD player has only started this making no doubt... a month or two ago.

  Edit: I bought the battle pack, which also comes with Rome: Total War. He reads this drive very well.

  It's very odd and very annoying.

  Hi Askes,

  ·        You have any third-party CD / DVD burning software installed on your computer?

  I suggest that access you the link below and run the Microsoft Automated Troubleshooting services and check if it helps you difficulty the CD / DVD reading number on your computer.
  http://support.Microsoft.com/kb/314060

  I hope this helps. Let us know the results.

  Thank you and best regards,

   

  Srinivas R

  Microsoft technical support.

  Visit our Microsoft answers feedback Forum and let us know what you think.

• Dell studio 15 computer laptop dvd drive don't read do not discs in Vista

  IAM using dell studio 15 laptop with vista 32 bit os.my dvd player is not reading any disc

  Pleas give me the solution

  http://support.Microsoft.com/kb/982116/en-AU

  Your CD or DVD drive is missing or is not recognized by Windows or other programs

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

  See if the information above solves the problem.

  See you soon.

  Mick Murphy - Microsoft partner