RAID1 Upgrading from Centos 6

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RAID1 Upgrading from Centos 6

Post by kennethbrun » 2014/10/19 13:47:59

I'm about to upgrade my Centos 6 server to Centos 7 (primarily to have recent MythTV support).

One of the things I'm concerned about, is my software RAID1 array, because it contains very vital data. I plan to take backup of the most valuable data, but not all of it, because I dont have sufficient storage space for it.

Do you think my RAID disks will work out of the box, when installing Centos7? Obviously it is very important, that they aren't reformatted or anything.

Any suggestions/advices will be appreciated.

Best regards,

more /etc/mdadm.conf

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MAILADDR xxxx@xxxx
DEVICE /dev/sdb1 /dev/sdc1
ARRAY /dev/md0 metadata=1.2 name=mpserver:0 UUID=42363d2c:cd81c7a6:fc398779:6de8dfe3
more /etc/fstab

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UUID=d933dd77-73d4-482c-84c3-0e01ffa02a42 /                       ext3    defaults        1 1
UUID=f841a34b-13d8-4ed9-a92e-32d01cbc22d2 /boot                   ext4    defaults        1 2
/dev/md0		/data			ext4	defaults,errors=remount-ro 	0 1
UUID=7fed6fb4-83b7-46b0-9386-f6f5e319d9f8 swap                    swap    defaults        0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
more /proc/mdstat

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Personalities : [raid1] 
md0 : active raid1 sdb1[0] sdc1[1]
      1953510415 blocks super 1.2 [2/2] [UU]

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Re: RAID1 Upgrading from Centos 6

Post by TrevorH » 2014/10/19 18:57:59

mdadm RAID arrays ought to be forwards/backwards compatible between releases. Backups never hurt anyone...
CentOS 6 will die in November 2020 - migrate sooner rather than later!
CentOS 5 has been EOL for nearly 3 years and should no longer be used for anything!
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