EQL is block storage and as long as the OS doesnt tell the SAN that it have something deletet your SAN never have the change to free some blocks and get some space back.  You may be remember to that a OS in most cases doesnt delete data from a disk it just mark it as deletet and override it later. Windows Server 2012 supports the needed SCSI Unmap command for reclaming disk space on THIN provisioning EQL Volumes. For Windows Server 2008(r2?) the EQL HIT brings the eqlrethin.exe which you have to run manually. If you run VMware vSphere it depends on the Version how unmap works. You doesnt tell us which Server OS or Hypervisor youre using so. BTW. if  your FW 6.0.6 doesnt have emergency Path H2 installed pls upgrade to F W6.0.7 urgent. Regards, Joerg
I have a Equallogic box   PS 6000 series array which total capacity 6.3 TB. And storage array firmware version 6.0.6.We have three volume all are thin provision enabled. Two volume are used for HA-clustered mail server. On the second server we were keeping some mail backup by using scheduling. After few weeks we found our second volume where we were keeping weekly backup is full. Then we login to server and delete few TB of backup data from the server connected volume. And from server its was showing lots of free space on the volume but from equallogic web management console it was showing same occupied space on the volume.   I did not found any options in Equallogic web management console any way to make free space of the volume.  As Array is showing very few space please suggest me which command I use to recover my space from volume after deleting data.  
Volume space full