>From the online document of ZFS On-Disk Specification, I found there is a >field named "dd_parent_obj" in dsl_dir_phys_t. will this field be modified or >kept unchanged during snapshot COW?
For example, consider a ZFS filesytem mounted on /myzfs, which contains 2 subdirs(A and B). If we do the following steps: 1) create a snapshot named /[EMAIL PROTECTED] 2) rename /myzfs/A to /myzfs/A1. I think the directory objects of /myzfs/A and /myzfs will be COW'd during the rename operation. Now we can access dirctory B by specifing either "/myzfs/B " or "/[EMAIL PROTECTED]/B". The problems are: 1) What is the parent of B? will "dd_parent_obj" of B be changed during the COW of dirctory object /myzfs? 2) If we remove /myzfs/B thereafter, will "dd_parent_obj" of of /[EMAIL PROTECTED]/B be changed? Thanks. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
