Remote copy with worm guarantee

Abstract

In the case in which data in a storage system A is remotely copied to a storage system B, it is not taken into account whether the data of the remote copy is WORM data. In the case in which a setting is made such that data stored in a volume in the storage system A is copied to a volume in the storage system B, storage system A judges whether an attribute to the effect that data can be referred to and can be updated or to the effect that data can be referred to but cannot be updated is added to the volume in the storage system A. Then, if the volume is a volume to which the attribute to the effect that data can be referred to but cannot be updated is added, such attribute is added to the volume in the storage system B.

1 - 20 . (canceled)  
   
   
       21 . A system comprising 
 a first storage system including at least one first disk drive and a first control apparatus for controlling to store data in the first disk drive, the first disk drive being related to a primary volume; and    a second storage system including at least one second disk drive and a second control apparatus for controlling to store data in the second disk drive, the second disk drive being related to a secondary volume;    wherein, if a remote copy process between the primary volume and the secondary volume is processed, an attribute of the primary volume is copied to an attribute of the secondary volume, and    wherein the attribute of the primary volume is an attribute to the effect that data can be referred to but cannot be updated.    
   
   
       22 . The system according to  claim 21 , wherein: 
 the attribute of the primary volume is stored in the first disk drive.    
   
   
       23 . The system according to  claim 21 , wherein: 
 the attribute of the secondary volume is stored in the second disk drive.    
   
   
       24 . The system according to  claim 21 , wherein: 
 if a pair status between the primary volume and the secondary volume is occurred, the attribute of the primary volume is copied to the attribute of the secondary volume.    
   
   
       25 . The system according to  claim 21 , wherein: 
 if the remote copy process is processed, the first control apparatus judge whether the attribute of the primary volume is an attribute to the effect that data can be referred to and can be updated or the attribute to the effect that data can be referred to but cannot be updated.    
   
   
       26 . The system according to  claim 21 , wherein: 
 the first control apparatus receives designation of a volume to which the attribute to the effect that data can be referred to but cannot be updated is added, an in the case in which the designated volume is set as the secondary volume, the first control apparatus outputs a notice to the effect that the designation cannot be accepted.    
   
   
       27 . A system comprising: 
 a first storage system including at least one first disk drive and a first control apparatus for controlling to store data in the first disk drive, the first disk drive being related to a primary volume; and    a second storage system including at least one second disk drive and a second control apparatus for controlling to store data in the second disk drive, the second disk drive being related to a secondary volume;    wherein, if a remote copy process between the primary volume and the secondary volume is processed, an attribute of the primary volume is copied to an attribute of the secondary volume, and    wherein the attribute of the primary volume is Read Only.    
   
   
       28 . The system according to  claim 27 , wherein: 
 the attribute of the primary volume is stored in the first disk drive.    
   
   
       29 . The system according to  claim 27 , wherein: 
 the attribute of the secondary volume is stored in the second disk drive.    
   
   
       30 . The system according to  claim 27 , wherein: 
 if a pair status between the primary volume and the secondary volume is occurred, the attribute of the primary volume is copied to the attribute of the secondary volume.    
   
   
       31 . The system according to  claim 27 , wherein: 
 if the remote copy process is processed, the first control apparatus judge whether the attribute of the primary volume is Read/Write Enable or the Read Only.    
   
   
       32 . The system according to  claim 27 , wherein: 
 the first control apparatus receives designation of a volume to which the Read Only is added, an in the case in which the designated volume is set as the secondary volume, the first control apparatus outputs a notice to the effect that the designation cannot be accepted.    
   
   
       33 . A system comprising: 
 a first storage system including at least one first disk drive and a first control apparatus for controlling to store data in the first disk drive, the first disk drive being related to a primary volume; and    a second storage system including at least one second disk drive and a second control apparatus for controlling to store data in the second disk drive, the second disk drive being related to a secondary volume;    wherein, if a remote copy process between the primary volume and the secondary volume is processed, an attribute of the primary volume is copied to an attribute of the secondary volume, and    wherein the attribute of the primary volume is Write Once Read Many (WORM).    
   
   
       34 . The system according to  claim 33 , wherein: 
 the attribute of the primary volume is stored in the first disk drive.    
   
   
       35 . The system according to  claim 33 , wherein: 
 the attribute of the secondary volume is stored in the second disk drive.    
   
   
       36 . The system according to  claim 33 , wherein: 
 if a pair status between the primary volume and the secondary volume is occurred, the attribute of the primary volume is copied to the attribute of the secondary volume.    
   
   
       37 . The system according to  claim 33 , wherein: 
 if the remote copy process is processed, the first control apparatus judge whether the attribute of the primary volume is the WORM or not.    
   
   
       38 . The system according to  claim 33 , wherein: 
 the first control apparatus receives designation of a volume to which the WORM is added, an in the case in which the designated volume is set as the secondary volume, the first control apparatus outputs a notice to the effect that the designation cannot be accepted.