Dear All, Recently, I try to read analyze the bitmap of XFS file system, it seems that I cannot read the latest bitmap from hard disk involving the XFS, and cannot read the accurate info even after a long time. For example, i cannot get the relevant bitmap info after I add/delete a big file to/from XFS file system. I tried several solution, and find it out that I must execute xfs_freeze for the XFS partition in CentOS7, and it seems that xfs_freeze doesn’t work for XFS version included in Redhat6.5, I must umount/mount the xfs, then I can get the latest bitmap info related to the latest data located in disk. What strategy does XFS use to cache/flush bitmap to hard disk? How can I get the accurate bitmap info especially for Redhat6 series Operating System? Could you please give help on it? Thanks in advance! ☺ Halsey Pian -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html