On Mon, Feb 22, 2010 at 22:55, tomwaters <tomwat...@chadmail.com> wrote:
> Hi guys, > I have just installed open solaris 2009.6 on my server using a 250G > laptop drive (using the entire drive). > > I now want to add another [u]identical[/u] 250G laptop drive to the rpool > to create a mirror. The have been no other changes to hardware (x86 - intel > entry level server board). > > All the instructions I have seen indicate i should format the drive with a > 100% solaris partition...eg here > http://darkstar-solaris.blogspot.com/2008/09/zfs-root-mirror.html > > The problem is, when I format the drive using "format", "fdisk" and 100% > solaris - yes and then look at the drive size with "format", I see that > t[b]he "new" drive is one cylinder less than the current rpool drive[/b] > (C8t0d0). > > eg existing rpool drive c8t0d0 = 39999 cyl > newly formatted drive c8t1d0 = 3999[b]8[/b] cyl > (not actual numbers as I am not infront of the server at the moment - just > an example) > > So, naturally when I run ...prtvtoc /dev/rdsk/c8t1d0s2 | fmthard -s - > /dev/rdsk/c8t1d0S2, it complains about the size of the disk. > > What am I doing wrong? How can I get the second drive c8t1d0 to format to > exactly the same size as the original? > > I am a newbie to opensolaris so please provide step by step instructions as > I have tried to find the answer myself all day but can not. The closest i > have come is a statement that I need to manually set the partition > size...but how? > > I also have an 250G desktop drive that I tested and it behaves exactly the > same (ie. formats to one less cylinder). > > Thanks. > -- > > Have you tried simply adding the c?t?d? device as a mirror to the zpool, without bothering with formatting/partition tables/all that? My understanding is that zfs defaults to adding a EFI partition table when given raw drives (not vtoc, which it appears you are using there), and if you just give the raw drive to the zpool, you shouldn't need to deal with the format utility. (I'm rather new to solaris as well, I trust somebody will correct me if I'm mistaken about any of this.) -Ethan
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