<div dir="ltr">This may be a genuine mismatch between the disks.<div> </div><div>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.</div> <div> </div><div>I was surprised, to say the least. </div></div><div class="gmail_extra"> <div class="gmail_quote">On Fri, Feb 7, 2014 at 10:14 AM, Willard Korfhage <<a href="mailto:omniti@familyk.org" target="_blank">omniti@familyk.org</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">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@s1:~# pfexec fdisk -B c2t1d0p0 root@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@0,0/pci8086,1c02@1f,2/disk@0,0 and further information is root@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 (<a href="https://www.illumos.org/issues/3610" target="_blank">https://www.illumos.org/issues/3610</a>) _______________________________________________ OmniOS-discuss mailing list <a href="mailto:OmniOS-discuss@lists.omniti.com" target="_blank">OmniOS-discuss@lists.omniti.com</a> <a href="http://lists.omniti.com/mailman/listinfo/omnios-discuss" target="_blank">http://lists.omniti.com/mailman/listinfo/omnios-discuss</a> </blockquote></div> </div>