[OmniOS-discuss] Warning that partition is too large when mirroring identical disks in root pool

[Willard Korfhage]

That could happen, depending on how many bad blocks the disk has, but in 
this case, the numbers it reports, the numbers it says are inconsistent, 
are from the original OmniOS install. I am surprised that the original 
install would generate an inconsistent partition arrangement.

Now if I could just figure out how to format the disk, I could try 
starting from scratch. Given the Illumos bug, I suppose I'll have to 
pull it and format it on another machine.

On 2/7/2014 11:54 AM, Warren Marts wrote:
> This may be a genuine mismatch between the disks.
>
> A few weeks ago I was trying to image between two apparently identical 
> Western Digital RE2 400GB drives. They were produced on the same day 
> and their serial numbers were only ~200 apart, but the disk utility 
> reported block counts that differed by about 20,000 (10 MB) and 
> neither count matched the one on the disk label.
>
> I was surprised, to say the least.
>
>
> On Fri, Feb 7, 2014 at 10:14 AM, Willard Korfhage <omniti at familyk.org 
> <mailto:omniti at familyk.org>> wrote:
>
>     I just installed OmniOS r151008j last night, and today I wanted to
>     mirror rpool, but have a warning about the disk size. I have 2
>     Seagate 1TB disks (model ST1000LM024HN), and my OmniOS install is
>     on one of them. I told the install to use the whole disk. Some
>     version of OpenIndiana was previously installed on the disk. The
>     install went without any problem.
>
>     c2t0d0 is the disk with OmniOS
>     c2t1d0 is supposed to be its mirror
>
>     To do the mirroring, following the directions in the wiki, I did
>
>     root at s1:~# pfexec fdisk -B c2t1d0p0
>     root at s1:~# pfexec prtvtoc /dev/rdsk/c2t0d0s2 | pfexec fmthard -s -
>     /dev/rdsk/c2t1d0s2
>     fmthard: Partition 2 specifies the full disk and is not equal
>     full size of disk. The full disk capacity is 1953407610 sectors.
>     fmthard: Partition 2 specified as 1953471870 sectors starting at 0
>      does not fit. The full disk contains 1953407610 sectors.
>     fmthard: New volume table of contents now in place.
>
>     At this point I stopped, and haven't done the mirror.
>
>     For the disk with the install, format reports
>
>     Current Disk = c2t0d0
>     <ATA-ST1000LM024HN-M-0001 cyl 60797 alt 2 hd 255 sec 126>
>     /pci at 0,0/pci8086,1c02 at 1f,2/disk at 0,0
>
>     and further information is
>
>     root at s1:~# pfexec prtvtoc /dev/rdsk/c2t0d0s2
>     * /dev/rdsk/c2t0d0s2 partition map
>     *
>     * Dimensions:
>     *     512 bytes/sector
>     *     126 sectors/track
>     *     255 tracks/cylinder
>     *   32130 sectors/cylinder
>     *   60799 cylinders
>     *   60797 accessible cylinders
>     *
>     * Flags:
>     *   1: unmountable
>     *  10: read-only
>     *
>     * Unallocated space:
>     *       First     Sector    Last
>     *       Sector     Count    Sector
>     *           0     32130     32129
>     *
>     *                          First     Sector    Last
>     * Partition  Tag  Flags    Sector     Count    Sector  Mount Directory
>            0      2    00      32130 1953375480 1953407609
>            2      5    01          0 1953471870 1953471869
>            8      1    01          0     32130     32129
>
>     Any idea what is going on?
>
>     I tried to format the disk without the install (c2t1d0), just to
>     start with a completely fresh disk, but it doesn't work. This
>     appears to be a long-standing (11-month old) Illumos bug
>     (https://www.illumos.org/issues/3610)
>
>
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>
>

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