Changing the Parameters of a File System
"In tuning file systems on the Solaris Operating System, changing some parameters of a file system usually destroys the data on it. For instance, changing the cache segment block size in the volume of a T3 requires that you delete the existing volume, which destroys the data on it. After that it could take a significant amount of time for the volume to be reinitialized if you've got a large amount of disk space. In addition, you may need to change the segment size of a logical unit number (LUN) in a Redundant Array of Inexpensive Disks (RAID) box, which requires deleting the existing LUN, and so on. Even if you're changing the parameter of a metadevice, or renaming the metadevice, you'll need to unmount the file system."
(Submitted by Noel Fri Jul 23, 2004 )
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