Hello guys,

I have this server with a ton of disks, some in hardware raid, some in softraid, and I would like to upgrade it to FC27
here is the disk array (LSI , 3ware) info:
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Now, there is a singular JBOD with a large 60T RAID10 partition (raidbox2), a hot spare and an extra /SCRATCH disk listed as device 8.

There there are 8 individual mirrors, units 0-7, one of which is used as the OS drive, and the rest are STRIPED together, making a 13TB RAID10 disk, using "md" as follows:
Code:
# mdadm --detail /dev/md127
/dev/md127:
        Version : 1.2
  Creation Time : Thu Sep 26 09:10:56 2013
     Raid Level : raid0
     Array Size : 13671795200 (13038.44 GiB 13999.92 GB)
   Raid Devices : 7
  Total Devices : 7
    Persistence : Superblock is persistent

    Update Time : Thu Sep 26 09:10:56 2013
          State : clean 
 Active Devices : 7
Working Devices : 7
 Failed Devices : 0
  Spare Devices : 0

     Chunk Size : 512K

           Name : localhost.localdomain:raidbox1
           UUID : 716ab1a7:d3a3d01e:53594732:0f7ed3ba
         Events : 0

    Number   Major   Minor   RaidDevice State
       0       8       16        0      active sync   /dev/sdb
       1       8       32        1      active sync   /dev/sdc
       2       8       48        2      active sync   /dev/sdd
       3       8       64        3      active sync   /dev/sde
       4       8       80        4      active sync   /dev/sdf
       5       8       96        5      active sync   /dev/sdg
       6       8      112        6      active sync   /dev/sdh
My question is this, if I ask the guys at the NOC to reinstall the box with FC27, I suspect the large 60TB hardware RAID10 partition will remain as is, however, the 13TB partition will disappear.

what would be the best way to upgrade ?
- copy the 13T partition somewhere else first, do a fresh install, rebuild it, and copy it back in after install ?
- or maybe there is a way to save the /dev/md127 state, and "reimport it" after a fresh install ?

Or is there a possible upgrade path from FC19 ?

appreciate any ideas