Hi Al, That depends on whether you want to go back to a VTOC/SMI label or keep the EFI label created by ZFS. To keep the EFI label just repartition and use the partitions as desired. If you want to go back to a VTOC/SMI label you have to run format -e and then relabel the disk and select SMI.
Be sure to run "zpool destroy poolname" before relabeling a lun used for zfs. To automatically recreate the default VTOC label you could incorporate the following into a script and iterate over a list of disks. 1. Create a label.dat file with the following line in it... label 0 y 2. Then execute the following format command... format -e -m -f /tmp/label cxtxdx That should apply a default VTOC SMI label. For x86 you may need run following before the format command... usr/sbin/fdisk -B cxtxdxp0 Regards, Vic On Dec 17, 2007 9:36 AM, Al Slater <[EMAIL PROTECTED]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi, > > What is the quickest way of clearing the label information on a disk > that has been previously used in a zpool? > > regards > > - -- > Al Slater > > Technical Director > SCL > > Phone : +44 (0)1273 666607 > Fax : +44 (0)1273 666601 > email : [EMAIL PROTECTED] > > Stanton Consultancy Ltd > Pavilion House, 6-7 Old Steine, Brighton, East Sussex, BN1 1EJ > Registered in England Company number: 1957652 VAT number: GB 760 2433 55 > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.7 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iD8DBQFHZoluz4fTOFL/EDYRAnr5AJ4ie+xFNCi6gA5HLZ8IqI1wHItEEwCgj0ru > EwSc9B16io3kBz2wS0LGoEQ= > =eaZc > -----END PGP SIGNATURE----- > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
