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182 Creating and administering disk groups
Handling disks with duplicated identifiers
As the cloned disk EMC0_15 is not tagged as t1, it is not imported. Note that the
state of the imported cloned disks has changed from online udid_mismatch
to online clone_disk.
By default, the state of imported cloned disks is shown as online clone_disk.
This can be removed by using the
vxdisk set command as shown here:
# vxdisk set EMC0_8 clone=off
# vxdisk -o alldgs list
DEVICE TYPE DISK GROUP STATUS
EMC0_4 auto:cdsdisk mydg01 mydg online
EMC0_6 auto:cdsdisk mydg02 mydg online
EMC0_8 auto:cdsdisk mydg03 newdg online
EMC0_15 auto:cdsdisk - (mydg) online udid_mismatch
EMC0_18 auto:cdsdisk mydg03 mydg online
EMC0_24 auto:cdsdisk mydg01 newdg online clone_disk
In the next example, none of the disks (neither cloned nor non-cloned) have
been imported:
# vxdisk -o alldgs list
DEVICE TYPE DISK GROUP STATUS
EMC0_4 auto:cdsdisk - (mydg) online
EMC0_6 auto:cdsdisk - (mydg) online
EMC0_8 auto:cdsdisk - (mydg) online udid_mismatch
EMC0_15 auto:cdsdisk - (mydg) online udid_mismatch
EMC0_18 auto:cdsdisk - (mydg) online
EMC0_24 auto:cdsdisk - (mydg) online udid_mismatch
To import only the cloned disks that have been tagged as t1 into the mydg disk
group:
# vxdg -o useclonedev=on -o tag=t1 -o updateid import mydg
# vxdisk -o alldgs list
DEVICE TYPE DISK GROUP STATUS
EMC0_4 auto:cdsdisk - (mydg) online
EMC0_6 auto:cdsdisk - (mydg) online
EMC0_8 auto:cdsdisk mydg03 mydg online clone_disk
EMC0_15 auto:cdsdisk - (mydg) online udid_mismatch
EMC0_18 auto:cdsdisk - (mydg) online
EMC0_24 auto:cdsdisk mydg01 mydg online clone_disk
As in the previous example, the cloned disk EMC0_15 is not tagged as t1, and so
it is not imported.