Do you have Virtual Hot Spare space enabled? It also hides as dark matter from df.  -- Peter
Hi,  QUESTION: ------------------------------------ I login to isilon via putty use command df -h to check the size   i find out the total size is not equal to used size + free size   is there any possible that the size is being use by system but is not being display ?     BUSINESS IMPACT:  ------------------------------------ No Impact, Just curiosity from customer   Regards, Mike
Incorrect total size in Isilon