Running the process adhoc is also very easy. Deleting or removing files from a VMFS datastore frees space within the file system. HPE (and HP) Run the following to change directories (not required, but makes life easier): The unmap operations will be clearly indicated with UNMAP in the log line. Then I saw that it should only be used on VMFS5 and I tried it on VMFS5 LUN, but I got the exact same results. DELL/EMC customers can make use of the VSI Client for vSphere Web Client which includes this functionality, amongst other cool features. This action can lock some of the resources during the operation. To be honest, I assumed it works for any storage supporting UNMAP. (e in b.c))if(0>=c.offsetWidth&&0>=c.offsetHeight)a=!1;else{d=c.getBoundingClientRect();var f=document.body;a=d.top+("pageYOffset"in window?window.pageYOffset:(document.documentElement||f.parentNode||f).scrollTop);d=d.left+("pageXOffset"in window?window.pageXOffset:(document.documentElement||f.parentNode||f).scrollLeft);f=a.toString()+","+d;b.b.hasOwnProperty(f)?a=!1:(b.b[f]=!0,a=a<=b.g.height&&d<=b.g.width)}a&&(b.a.push(e),b.c[e]=!0)}y.prototype.checkImageForCriticality=function(b){b.getBoundingClientRect&&z(this,b)};u("pagespeed.CriticalImages.checkImageForCriticality",function(b){x.checkImageForCriticality(b)});u("pagespeed.CriticalImages.checkCriticalImages",function(){A(x)});function A(b){b.b={};for(var c=["IMG","INPUT"],a=[],d=0;d=b[e].o&&a.height>=b[e].m)&&(b[e]={rw:a.width,rh:a.height,ow:a.naturalWidth,oh:a.naturalHeight})}return b}var C="";u("pagespeed.CriticalImages.getBeaconData",function(){return C});u("pagespeed.CriticalImages.Run",function(b,c,a,d,e,f){var r=new y(b,c,a,e,f);x=r;d&&w(function(){window.setTimeout(function(){A(r)},0)})});})();pagespeed.CriticalImages.Run('/mod_pagespeed_beacon','https://www.pragmaticio.com/2016/12/04/esxi-5-5-automating-vmfs-unmap-w-powercli-and-powershell/','8Xxa2XQLv9',true,false,'ucnyJzX03qc'); 2017-02-07T14:12:38.585Z info hostd[XXXXXXXX] [[email protected] sub=Libs opID=esxcli-fb-XXXX user=root] Unmap: Async Unmapped 200 blocks from volume XXXXXXXX-XXXXXXXX-XXXX-XXXXXXXXX Recover data from damaged or formatted VMFS disks or VMDK files. VMware support is on vacation at the moment, responding weird stuff every 3 days, which is quite suprising given that we are a Service Provider customer…. Disables the unmap operations for the datastore. Also, I would reboot the host you run the command on before and after the command as I’ve seen memory issues caused by running it (I have a sneaking suspicion that once this caused volume corruption because the host locked and didn’t complete). ":"&")+"url="+encodeURIComponent(b)),f.setRequestHeader("Content-Type","application/x-www-form-urlencoded"),f.send(a))}}}function B(){var b={},c;c=document.getElementsByTagName("IMG");if(!c.length)return{};var a=c[0];if(! VMware FT vs VMware HA: what the difference? Run the process be executed outside of peak hours. (What is SCSI UNMAP?). thank you for the script, I was looking for something like this. 19. I left it to run overnight and it did eventually finish while I was sleeping. Record your volume label and run the following command, where Datastore00 is your volume label: If you would like to use the UUID, run the following where 509a9f1f-4ffb6678-f1db-001ec9ab780e is your datastores UUID: That’s it! Any way to pre-calculate expected run time per TB? FREE DOWNLOADVer 4.7, Win Now let’s get into actually doing this thing. What is Space Reclamation and How to Perform It, Thick vs Thin Provisioning: All You Wanted to Know, How to Upgrade VMFS from 3 to 5th version, VMkernel and Its Interactions with Storage, VMware Infrastructure: What Components are Used, VMware vMotion requirements: for VMs and for hosts, VMware vMotion vs storage vMotion: all you wanted to know. Microsoft You have the choice to use the auto unmap, or manual unmap, or both! We are running 3x esx 6.5 hosts going back to an MSA 2040, EQL 6210 and a Compellent SCV 2020. Initially I thought this command would only unmap the specified block size. Typically when you provision your datastores for VMware, you will thin provision them. We had the same issue with freeing up space, and like you we had to go down to 1 replay - any less than that and the system won't be able to run data progression. -l|--volume-label=volume_label - if this is displayed, the next argument (2) is not worth using. I’m not sure if it still uses the temporary files to unmap (this was documented in older versions, however I think I may have read something a while ago that this has changed).