[Bug 599255] Re: dmraid fails to read promise RAID sector count larger than 32-bits

[Vertago1]

I believe I am affected by this bug, but I wanted to check to see if I
am having the same issue.

I have an amd 990X chipset which uses SB950, according to
http://www.redhat.com/archives/ataraid-list/2012-March/msg00001.html it
is probably a Promise controller.

I have two 2TB disks in RAID0 which windows was able to see and partition with GPT.
sudo dmraid -r:
/dev/sdb: pdc, "pdc_ejdejgej", stripe, ok, 1758766336 sectors, data@ 0
/dev/sda: pdc, "pdc_ejdejgej", stripe, ok, 1758766336 sectors, data@ 0

Ubuntu doesn't see the correct volume size.
sudo /dev/mapper/gdisk pdc_ejdejgej:
GPT fdisk (gdisk) version 0.8.8

Warning! Disk size is smaller than the main header indicates! Loading
secondary header from the last sector of the disk! You should use 'v' to
verify disk integrity, and perhaps options on the experts' menu to repair
the disk.
Warning! Main and backup partition tables differ! Use the 'c' and 'e' options
on the recovery & transformation menu to examine the two tables.

Warning! One or more CRCs don't match. You should repair the disk!

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: damaged

****************************************************************************
Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
verification and recovery are STRONGLY recommended.
***************************************************************************

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https://bugs.launchpad.net/bugs/599255

Title:
  dmraid fails to read promise RAID sector count larger than 32-bits

Status in “dmraid” package in Ubuntu:
  Triaged
Status in Baltix GNU/Linux:
  New
Status in “dmraid” package in Fedora:
  New

Bug description:
  I have two amd sb7*** motherbord. I tryed two case.

  I use raid0(1.5TB x 3=4.5TB) by bios(SB7*0).

  I partitioned two array. 2.0TB(A) and 2.5TB(B).

                     win7-64
                     winxp32    ubuntu10.4 /fedora13
  ------------------------------------------------------------------
  raid-A 2.0TB   ok              ok          all capacity OK
  raid-B 2.5TB   ok (all)       no*1      only 300GB(NG)
  ------------------------------------------------------------------
  *1=ubuntu knows only 300gb. fedora too.

  ubuntu x64/Fedora13 x64,by DMRAID

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