You could sidestep the geometry issue by using EFI/GPT labels. "format -e", then select "label" at which point format will prompt:
format> label [0] SMI Label [1] EFI Label Specify Label type[1]: Hope this helps, -Peter Moore, Joe wrote: > I am presenting ZFS zvols over iSCSI to other Solaris hosts, but am > losing quite a bit of disk space that I don't want to lose: > > I create a zvol of 4GB, make a target of it, then add the static-config > to the iscsi initiator. > > When I carve up the disk in format, it sees it as a 128-cylinder disk, > and reserves 2 of the cylinders as "spare". That leaves me with a > 3.94GB usable space. > > If I manually change the geometry, I can get the 2 cylinders back (or > write a label that has a different cylinder size, reducing the "cost" of > the 2 spares), but I don't want to require all of my admins to do these > extra steps. > > It looks like the disk geometry is specified in > /etc/iscsi/tgt/<target-alias>/params.0 -- There's entries for heads, > cylinders, etc. but I don't see any place to modify these (or to force > iscsitgtd to reread them) > > Is this something that's changeable? > > --Joe > _______________________________________________ > storage-discuss mailing list > [email protected] > http://mail.opensolaris.org/mailman/listinfo/storage-discuss > > _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
