vSphere 5.5 Flash Read Cache

Similar Questions

• 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

• A few questions about VMware Flash Read Cache (vFRC)

  Hello

  1) there is a way to simulate a VMFS datastore as SSD device. See the instructions in the following link:

  http://tomverhaeg.nl/VMware-ESXi/VMware-ESXi-tag-a-device-as-local-and-SSD/

  1 a) can we fake a NFS datastore as a SSD device?

  1 (b) partitions on the SSD device must be empty in order for the vFRC to work.

  There are two scenarios here: empty the lun (with no VMFS file system) and VMFS LUNS (with no data). Both scenarios would work for vFRC?

  (2) a device SSD shareable by multiple ESXi hosts?

  (3) several flash pools can be created for each host ESXi? If so, what is the maximum number of pools of flash can be created by ESXi host?

  (4) a device SSD can be used as a local drive?

  1 a) can we fake a NFS datastore as a SSD device?

  >> N°

  1 (b) partitions on the SSD device must be empty in order for the vFRC to work.

  There are two scenarios here: empty the lun (with no VMFS file system) and VMFS LUNS (with no data). Both scenarios would work for vFRC?

  > empty lun with no partitions is necessary... Partitioned VMFS LUNs cannot be used because VFRC works with VFFS file system

  (2) a device SSD shareable by multiple ESXi hosts?

  > not in a context vFRC, normal on SSD lun VMFS datastore can be shared and used for features such as "swap for ssd.

  (3) several flash pools can be created for each host ESXi? If so, what is the maximum number of pools of flash can be created by ESXi host?

  > No, there may be only one pool that will be shared for all VMDK to a permit for the use of vFRC. but also exchange for SSD if configured.

  (4) a device SSD can be used as a local drive?

  > claiming remote as local is possible. but not recommended and performance improvement is not guaranteed in this case with vFRC...

• 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.

• 24GB flash acceleration Cache HDD & 1 TB 5400 RPM hard drive hybrid

  I am considering buying the ENVY 17 t-j100 TouchSmart Quad Edition.  Two custimization options are:

  24GB flash acceleration Cache hard drive

  1 TB 5400 RPM hard drive hybrid

  As I understand it, these two use SSD to accelerate the performance of the hard disk.  I have a few questions:

  Is there a difference between the two?

  How many GB of SSD are on the drive hybrid?

  You can get both, or would they overlap?

  Thank you.

  Yes, there is a difference. The hybrid hard drive is home to the NAND Flash inside the car. Acceleration is made by the player himself. Hybrid hard drives are faster than a disk mechanical spinner, but the MSSD cache acceleration is faster. Faster is a full SSD. Cache Accelerator speed up startup and loading frequently used programs but doesn't do much for read/write sustained speeds. However, it makes the whole computing experience better. start time of 15 seconds and resume almost instantly from sleep, for example. The hybrid propulsion system is just a regular hard disk gradually faster. I would get the WSSD of 24 concert and you need not the hybrid car with her and I think that they only Pack the WSSD of 24 concert with a player standard spinner.

• Add after the purchase - 24GB flash acceleration Cache disk hard + bluetooth

  I can't wait but a smart buy HP ENvy 17 t-j100 however it does NOT hace two options, that I really want.

  • 24GB flash acceleration Cache hard drive
  • 802.11 WLAN AC and Bluetooth® [1 x 1]

  I have a heavy discount coupon for the smart buy so I can't set up the way I want to without losing huge savings.

  I can add more later as part/level?

  Yes. The WSSD cache drive should start fast Intel and as long as you can get the real part of HP you can install map of BT and wireless.

• 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.

• my flash reads the xml, but does not include the php tag...

  my flash reads the xml, but does not include the tag php. I want to read my xml dynamically, Please help me.

  Code:

  Stop();

  function randomOrder (targetArray)

  {

  var _loc2 = targetArray.length;

  var _loc3 = [];

  for (var _loc1 = 0; _loc1 < _loc2; ++ _loc1)

  {

  _loc3 [_loc1] = _loc1;

  } / / end of for

  var _loc4 = [];

  for (var _loc1 = 0; _loc1 < _loc2; ++ _loc1)

  {

  _loc4 [_loc1] _loc3.splice = (Math.floor (Math.random () * _loc3.length), 1);

  } / / end of for

  var _loc5 = [];

  for (var _loc1 = 0; _loc1 < _loc2; ++ _loc1)

  {

  _loc5 [_loc1] = targetArray [_loc4 [_loc1]];

  } / / end of for

  return (_loc5);

  } / / End of the function

  var randomNUM = '? '. n ="+ random (9999);

  _root. LAN = 1;

  var homehead;

  HomeLink var;

  var homelinkwindow;

  var homebg;

  var homeflash;

  lamp var = Array();

  promo var = Array();

  var promobottom = Array();

  var headimg = Array();

  f_xmlwork2 = new XML();

  f_xmlwork2.ignoreWhite = true;

  f_xmlwork2. Load ("banner.php");

  f_xmlwork2. OnLoad = {function (success)}

  If (success) {}

  trace ("XML loaded!');

  f_xmlItemx2 = parseInt(this.firstChild.childNodes[0].firstChild);

  f_totalx2 = f_xmlItemx2.length;

  trace (f_totalx2);

  var _loc12 = 0;

  declarar a fundo imagem

  homebg = this.firstChild.childNodes [0].firstChild.nodeValue;

  f_headimg = this.childNodes [1];

  for (var _loc2 = 0; _loc2 < f_headimg.childNodes.length; ++ _loc2) {}

  Juju = f_headimg.childNodes [_loc2];

  JJ = headimg.push ({headimg: f_headimg.childNodes [_loc2].attributes.headimg, bgimg: f_headimg.childNodes [_loc2].attributes.bgimg, msgimg: f_headimg.childNodes [_loc2].attributes.msgimg, leftthrow: f_headimg.childNodes [_loc2].attributes.leftthrow, rightthrow: f_headimg.childNodes [_loc2].attributes.rightthrow});

  }

  end for

  allpromo = this.childNodes [2];

  jjpromo = allpromo.childNodes;

  for (var _loc2 = 0; _loc2 < allpromo.childNodes.length; ++ _loc2)

  {

  trace (jjpromo, [_loc2],.attributes.title);

  JJ = promo.push ({img:. attributes.img jjpromo [_loc2], title: jjpromo [_loc2].attributes.title, url: jjpromo [_loc2].attributes.url, window: jjpromo [_loc2].attributes.window, info: jjpromo [_loc2] Sublst.ChildNodes(1).ChildNodes(0) [0] .nodeValue});

  }

  end of for

  allpromobottom = this.childNodes [3];

  jjpromobottom = allpromobottom.childNodes;

  for (var _loc2 = 0; _loc2 < allpromobottom.childNodes.length; ++ _loc2)

  {

  trace (jjpromo, [_loc2],.attributes.title);

  JJ = promobottom.push ({url: jjpromobottom [_loc2].attributes.url, window: jjpromobottom [_loc2].attributes.window, info: jjpromobottom [_loc2] Sublst.ChildNodes(1).ChildNodes(0) [0] .nodeValue});

  } / / end of for

  If (f_xmlwork2.loaded is true)

  {

  headimg = randomOrder (headimg);

  for (var _loc2 = 0; _loc2 < f_headimg.childNodes.length; ++ _loc2)

  {

  trace (headimg, [_loc2], .headimg);

  } / / end of for

  play ();

  } / / end if

  }

  }

  trace (f_xmlwork2);

  Stop();

  PHP code:

  <?

  $link = mysql_connect("localhost","rnpac_eco","123");

  @mysql_select_db ("rnpac");

  $dir = "' banner /"; "

  Dir1 $= "" products/img_pro / ";"

  Dir2 $= "" universo/activities / ";"

  $sql = ' SELECT tbl_produto.id_produto, tbl_produto.produto, tbl_produto.legenda, tbl_produto.detalhe, tbl_produto.preco, tbl_produto.produto_cat_id, tbl_detalhe_produto.proprietario, tbl_detalhe_produto.local, tbl_detalhe_produto.qualidade, tbl_detalhe_produto.alcool, tbl_detalhe_produto.acidez, tbl_detalhe_produto.ph, tbl_detalhe_produto.informacao, tbl_detalhe_produto.gestor, tbl_detalhe_produto.condicionamento, tbl_detalhe_produto.detalhe_t, tbl_detalhe_produto.interesse, tbl_detalhe_produto.transporte, tbl_detalhe_produto.produto_id, tbl_imagem_produto.id_imagem tbl_imagem_produto.imagem1, tbl_imagem_produto.imagem2, tbl_imagem_produto.imagem3, tbl_imagem_produto.imagem4, tbl_imagem_produto.imagem5, tbl_imagem_produto.imagem6

  OF tbl_cat_produto, tbl_produto, tbl_detalhe_produto, tbl_imagem_produto WHERE tbl_produto.id_produto = tbl_detalhe_produto.produto_id AND tbl_produto.id_produto = tbl_imagem_produto.produto_id ORDER OF RAND()';

  $resultado = mysql_query ($sql)

  or die ("Nao faith possible realize a consulta.');

  $row1 = mysql_fetch_array ($resultado);

  $sql = "SELECT tbl_sub_universo.id_subuniverso, tbl_sub_universo.subuniverso, tbl_sub_universo.universo_id, tbl_actividade.id_actividade, tbl_actividade.entidade, tbl_actividade.legenda, tbl_actividade.subuniverso_id, tbl_actividade.det, tbl_actividade.preco, tbl_actividade.data, tbl_detalhe_actividade.actividade_id, tbl_detalhe_actividade.periodo, tbl_detalhe_actividade.descricao, tbl_detalhe_actividade.programa, tbl_detalhe_actividade.informacoes, tbl_detalhe_actividade.actividades, tbl_detalhe_actividade.localizacao, tbl_detalhe_actividade.locais, tbl_detalhe_actividade.servicos, tbl_imagem_produto.id_imagem. tbl_imagem_produto.imagem1, tbl_imagem_produto.imagem2, tbl_imagem_produto.imagem3, tbl_imagem_produto.imagem4, tbl_imagem_produto.imagem5, tbl_imagem_produto.imagem6, tbl_sub_universo tbl_imagem_produto.actividade_id, tbl_actividade, tbl_detalhe_actividade, tbl_imagem_produto WHERE the tbl_actividade.id_actividade = tbl_imagem_produto.actividade_id AND tbl_actividade.id_actividade = tbl_detalhe_actividade.actividade_id ORDER OF RAND() ';

  $resultado = mysql_query ($sql)

  or die ("Nao faith possible realize a consulta.');

  $row2 = mysql_fetch_array ($resultado);

  ' $query ='SELECT * FROM tbl_banner ORDER OF RAND() ';

  $resultado = mysql_query ($query);

  echo "<?" XML version=\"1.0\"? " >

  < home_left_headline >

  < bgimg > '. $dir2. ". $row1 ['imagem1'].' < / bgimg >

  < / home_left_headline >

  < home_flash > ';

  While ($row = {mysql_fetch_array ($resultado))}

  "" echo "< swf headimg =" ' bgimg = "" msgimg = "" leftthrow = "" rightthrow = "" > < / swf > '; "

  }

  echo "< / home_flash > ';"

  echo "< promotop >

  "< img class =" "title =" "" url = "" > <! " [CDATA []] > < / promo >

  "< img class =" "title =" "" url = "" > <! " [CDATA []] > < / promo >

  < / promotop > ';

  mysql_close ($Link);

  you would not see this trace php if your php has been setup correctly.  Upload your files and repeat the test.

• Flash reading html

  Hello I do some flash toys in which info for each toy different flash is stored in a database (for example for a quiz, questions are stored in the comic book) and I was wondering if there is a way to leave flash 'read' some of the html it is entrenched in (for example a code) that can be used to access this set of codes of the info (like for a quiz questions)
  Please help me, and have an external text doc is not an option (unless the flash can be compiled on the thumb to really change the trajectory of the txt.)
  
  Binary.Boy

  Yes, the html file that support flash can pass a variable/value to Flash by adding the variable/value to the swf reference. for example

• vSphere Read Cache - no disc is

  Hi all

  ESXi 5.5 ent +.

  HP BL460c Gen8 with table of P220i controller

  Intel DC S3700 200 GB SSD (Intel drive is supported, also tried with Samsung 960 GB SSD)

  I have a problem with the addition of an SSD in the web client. I click on manage - settings - virtual Flash Resource Management - Add capacity, but the list I empty.

  Both drives are visible if you are looking for on storage cards, it is entirely possible to add as a data store, I tried on the Samsung without success.

  The discs were used for the assessment of the PernixData and has worked well there.

  Any suggestions?

  
  Thank you!

  Found the problem: the drive has been marked as non-local. It may also be that the player is not reported as an SSD (not in my case though).

  ~ # esxcli storage device base list d naa.600508b1001c4fb788c917f46bf2a2f5

  Full name: Serial Attached SCSI disk HP (naa.600508b1001c4fb788c917f46bf2a2f5)

  Definable display name: true

  Size: 915683

  Device type: Direct access

  Multichannel plugin: NMP

  Devfs Path: /vmfs/devices/disks/naa.600508b1001c4fb788c917f46bf2a2f5

  Vendor: HP

  Model: VOLUME LOGIC

  Review: 4.68

  SCSI level: 5

  Is nickname: false

  Status: degraded

  RDM Capable is: true

  Is Local: false

  Is removable: false

  SSD is: true

  Is Offline: false

  Is perpetually booked: false

  Size of the full sample in queue: 0

  Threshold of full queue: 0

  Thin Provisioning status: unknown

  Attached filters:

  VAAI status: unknown

  Other UID: vml.0200010000600508b1001c4fb788c917f46bf2a2f54c4f47494341

  Is the Local of SAS device: false

  Is Boot USB Device: false

  Not IOs in circulation with the opposite worlds: 32

  To mark as a local, I ran this command (note that the syntax of auxiliary command option is not in the documentation, I posted the right pair):

  esxcli storage nmp ATAS add s VMW_SATP_LOCAL - naa.600508b1001c277a2d4d5e0285b4f6db device - option = "enable_local."

  After a reboot, it was possible to add the drive as the flash device.

  Thank you

• Confirming that vsphere 6 requires flash and does not support a customer to RHEL6/firefox?

  Hello

  My reading leads me to conclude that vsphere 6

  1. always requires flash

  2. can't access customer to RHEL6, either native one or through firefox

  Is this right?

  Thank you

  Hi mips,

  Yes, 'officially' the vSphere Web Client 6.0 does not support the RHEL6 and requires flash to operate. However the following may be of interest (even if it is for 5.5): KB VMware: cannot open the vSphere 5.5 Web Client in a browser on a Linux-based desktop

• Cannot use ReadyBoost, the flash player (caches cannot be created)

  I tried to use ReadyBoost to add 1902 MB memory for my Toshiba Laptop.When I hit apply it began counting can stop and displays this message:

  Cache creation failed

  Failed to create the cache. The system cannot find the specified file.

  Not every flash drive can be used with ReadyBoost.  You must make sure that the flash drive is ReadyBoost compatible.

• Is it possible to install Windows 7 on a State strong adapter w / HDD Compact Flash reader

  In addition, THIS would be as fast as a normal hard drive?

  As far as I know, Windows 7 supports not natively installed on a CF Reader because it might be the removable storage. A Compact flash drive has advantages and disadvantages. For example, it could increase the life of the battery and offers a much faster access time. However, it has much less read and write speeds higher than compared to a traditional 5200 rpm or 7200 RPM HARD drive. If you want to increase the performance of your PC, I recommend investing in an SSD.

  The common links:

  SSDS: FAQ: http://www.dell.com/downloads/global/products/pvaul/en/Solid-State-Drive-FAQ-us.pdf

  Choose the right SSD: http://www.tested.com/tech/pcs/452409-ssd-storage-essentials-your-next-pc-build/

  See you soon!

• Flash reader download URL does not work

  I try to install the flash player and reader on my computer (windows 8) but the download URL does not work. What could be the problem?

  OK finally managed to do work! apparently my antivirus has blocked pages.

  Thanks a lot anyway!

  concerning

• could note part read cache

  Hello
  
  When I try to open any object definition in the application designer, I get the error like "could not read share cache PCM (0,0).» What could be the reason.
  
  Thanks in advance
  Knockaert

  Hello

  Free space on the file server... Purge the Cache using Configuration Manager...

  Let me know if it helps

  Prashant