Patent ID: 6493729
Filing Date: 2002-12-10
Classification: G06F,Y10S

Abstract:
A data processing system implemented method for splitting a mirrored filesystem, comprising:identifying an existing filesystem on an existing logical volume; determining if said existing filesystem is mirrored, said existing logical volume including both said existing filesystem and a mirrored copy of said existing filesystem within said existing logical volume when said existing filesystem is mirrored; and only in response to a determination that said existing filesystem is mirrored: splitting the existing logical volume, wherein said mirror between said existing filesystem and said mirrored copy of said existing filesystem is split; placing said mirrored copy of said existing filesystem on a new logical volume; and identifying said placed mirrored copy as a new filesystem, wherein said existing filesystem remains on said existing logical volume and said new filesystem exists on said new logical volume, and further wherein said existing filesystem and said new filesystem are not mirrored.