Thanks Trevor. Good to hear from you.
I needed to use '-e' to move forward. I think I was confused because
these sources seem to disagree on SMI vs. EFI labels for ZFS:
ZFS always uses EFI:
* "ZFS formats the disk using an EFI label to contain a single, large
slice" - no mention of any exceptions -
http://docs.sun.com/app/docs/doc/817-2271/gazdp?l=en&a=view
Cannot boot from EFI labeled disk:
* http://docs.sun.com/app/docs/doc/819-2723/disksconcepts-17?l=en&a=view
ZFS disk "*cannot* have an EFI label" (perhaps only for rpools?)
* http://mail.opensolaris.org/pipermail/zfs-code/2009-May/000842.html
I think I understand:
* ZFS uses EFI labels except for boot disks, which must use an SMI label
("Solaris2" in fdisk output).
* The docs need to point out the exception at
http://docs.sun.com/app/docs/doc/817-2271/gazdp?l=en&a=view .
Trevor Pretty wrote:
Jeff old mate I assume you used format -e?
Have you tried swapping the label back to SMI and then back to EFI?
Trevor
Jeff Victor wrote:
I am trying to mirror an existing zpool on OpenSolaris 2009.06. I think
I need to delete two alternate cylinders...
The existing disk in the pool (c7d0s0):
Part Tag Flag Cylinders Size Blocks
0 root wm 1 - 19453 149.02GB (19453/0/0) 312512445
1 unassigned wm 0 0 (0/0/0) 0
2 backup wu 0 - 19453 149.03GB (19454/0/0) 312528510
3 unassigned wm 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 0 (0/0/0) 0
7 unassigned wm 0 0 (0/0/0) 0
8 boot wu 0 - 0 7.84MB (1/0/0) 16065
9 unassigned wm 0 0 (0/0/0) 0
The new disk, which was a zpool before I destroyed that pool:
Part Tag Flag Cylinders Size Blocks
0 unassigned wm 0 0 (0/0/0) 0
1 unassigned wm 0 0 (0/0/0) 0
2 backup wu 0 - 19453 149.03GB (19454/0/0) 312528510
3 unassigned wm 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 0 (0/0/0) 0
7 unassigned wm 0 0 (0/0/0) 0
8 boot wu 0 - 0 7.84MB (1/0/0) 16065
9 alternates wm 1 - 2 15.69MB (2/0/0) 32130
Format won't let me remove the two cylinders from slice 9:
partition> 0
Part Tag Flag Cylinders Size Blocks
0 unassigned wm 0 0 (0/0/0) 0
Enter partition id tag[unassigned]: root
Enter partition permission flags[wm]:
Enter new starting cyl[3]: 1
Enter partition size[0b, 0c, 1e, 0.00mb, 0.00gb]: 19453c
Warning: Partition overlaps alternates partition. Specify different
start cyl.
partition> 9
`9' is not expected.
How can I delete the alternate cylinders, or otherwise mirror c7d1 to
c7d0? Or can I safely use c7d0s2?
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