How to use nbd to simulate slow disk to an existing data directory












0















I have come across the following thread explaining on how to use nbd and tirckle to simulate slow disk. But, my question is little different and hence creating a new question.



Can I simulate a slow hard drive?



Question:
My application is writing on to /var/data-dir and I would like to validate my application for slow disk by simulating slow disk to /var/data-dir.
Challenge: the directory specified contains app data containing heartbeat, session info etc.. Hence, it's important for me to mount nbd on to /var/data-dir. How may I use nbd to simulate slow disk here? I need to update lot of configuration files if I will have to mount nbd onto different location. Henge, I would like to avoid nbd mounting to different location.



Most of the example I have across for nbd are with new directory/location. Hence the question.



@Poolie



Thanks,
Dinesh










share|improve this question



























    0















    I have come across the following thread explaining on how to use nbd and tirckle to simulate slow disk. But, my question is little different and hence creating a new question.



    Can I simulate a slow hard drive?



    Question:
    My application is writing on to /var/data-dir and I would like to validate my application for slow disk by simulating slow disk to /var/data-dir.
    Challenge: the directory specified contains app data containing heartbeat, session info etc.. Hence, it's important for me to mount nbd on to /var/data-dir. How may I use nbd to simulate slow disk here? I need to update lot of configuration files if I will have to mount nbd onto different location. Henge, I would like to avoid nbd mounting to different location.



    Most of the example I have across for nbd are with new directory/location. Hence the question.



    @Poolie



    Thanks,
    Dinesh










    share|improve this question

























      0












      0








      0


      1






      I have come across the following thread explaining on how to use nbd and tirckle to simulate slow disk. But, my question is little different and hence creating a new question.



      Can I simulate a slow hard drive?



      Question:
      My application is writing on to /var/data-dir and I would like to validate my application for slow disk by simulating slow disk to /var/data-dir.
      Challenge: the directory specified contains app data containing heartbeat, session info etc.. Hence, it's important for me to mount nbd on to /var/data-dir. How may I use nbd to simulate slow disk here? I need to update lot of configuration files if I will have to mount nbd onto different location. Henge, I would like to avoid nbd mounting to different location.



      Most of the example I have across for nbd are with new directory/location. Hence the question.



      @Poolie



      Thanks,
      Dinesh










      share|improve this question














      I have come across the following thread explaining on how to use nbd and tirckle to simulate slow disk. But, my question is little different and hence creating a new question.



      Can I simulate a slow hard drive?



      Question:
      My application is writing on to /var/data-dir and I would like to validate my application for slow disk by simulating slow disk to /var/data-dir.
      Challenge: the directory specified contains app data containing heartbeat, session info etc.. Hence, it's important for me to mount nbd on to /var/data-dir. How may I use nbd to simulate slow disk here? I need to update lot of configuration files if I will have to mount nbd onto different location. Henge, I would like to avoid nbd mounting to different location.



      Most of the example I have across for nbd are with new directory/location. Hence the question.



      @Poolie



      Thanks,
      Dinesh







      mount






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 10 at 3:34









      DineshDinesh

      104




      104






















          0






          active

          oldest

          votes











          Your Answer








          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "89"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1108461%2fhow-to-use-nbd-to-simulate-slow-disk-to-an-existing-data-directory%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes
















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Ask Ubuntu!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1108461%2fhow-to-use-nbd-to-simulate-slow-disk-to-an-existing-data-directory%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          Biblatex bibliography style without URLs when DOI exists (in Overleaf with Zotero bibliography)

          ComboBox Display Member on multiple fields

          Is it possible to collect Nectar points via Trainline?