Good Morning Failel.  Per EMC Documentation:  Managing Celerra Volumes and File Systems with AVM P/N 300-004-148 REV A07       Please let me know if this answers your question.  I have also attached the document for you.  Thanks.
I've had a dig around for a solution but haven't managed to really find anything on Powerlink on this !  I'm getting an error when copying files to a share on a CIFS server. The CIFs server is defined on a VDM.  I've mapped a drive to a Windows XP SP3 PC, from the Celerra NS120 (Dart 6.4.8.701)  For the CIFs Share, I created a file system using the clar_r5_performance pool.  For the File System(FS) I selected the following options: Storage capacity : 20MB Auto Extend enabled: Yes Virtual Provisioning Enabled: High Watermark: 90 Maximum Capacity:40MB (required when virtual provisioning is enabled) Slice Volumes: Yes File retention : No Deduplication Enabled: Yes  So from the XP machine, the mapped folder shows there is about 38MB of free space within the share - I set 40MB as the max capacity - so that's fine.  I copy 15MB of files and it's all fine (storage capacity was set to 20MB) I copy a 10MB file which would take space used up to 25MB, passed the storage capacity I'd set (so I expect the FS to extend),  and I get an "out of space error - you must delete some files"  I don't delete any files, and just try to do the copy operation again, and now it works fine.  It's almost as if the extension of the filesystem either didnt happen fast enough, when I tried to copy past the actual 20MB storage capacity the first time, or XP couldnt handle this.  The closest I could find on the forums was that the extention was not happening fast enough  Is there a fix for this, either on Windows, or on the Celerra,  or am I just missing something ?  Thanks for your help
Not enough Space in CIFS Share, the first time, then it's fine