Centos 6.3 software raid 1

Active 8 years, 10 months ago. Viewed 1k times. Improve this question. Contact Hetzner and tell them to set up the server properly this time.

In that case, either find someone at Hetzner who knows what they're talking about, or take your money elsewhere. Show 1 more comment. Active Oldest Votes. Improve this answer. Nice idea, to bad that installimage is this time not useful it needs that msdos partion to install.

I complained to Hetzner about installimage's limitation of not supporting GPT a while ago and they said they were working on adding GPT support but it might be a while. Meanwhile you can edit a local copy and make the needed changes if you're brave ; it's just a perl script.

You have to rebuild twice to recover one disk. Whoever set this up was seriously confused as to how RAID works and how to use it. This isn't a Linux problem, this is a basic "what a disk drive is" problem. This will work fine, but it is unnecessarily complicated for no benefit. In fact, you lose performance and capacity because of this. But it will work. I would audit this machine, though, to see what other messes exist. And we already know that it is unpatched, CentOS 6. Be sure to be patching your systems as a general practice.

CentOS 6 series is fine, but 6. The 6. So we know that that system has not been patched and updated properly maintained for at least three and a half years, probably closer to four years. You should be updating weekly if possibly, daily isn't bad and monthly at an extreme. Scott, are you saying this is bad approach? Actually most articles say about creating separate md arrays from separate partitions on two or more same size drives I also do so, and now you're making me anxious I was wrong all the time.

Any details? A better way of doing it would be to create an array from the entire drive and then use LVM to manage the partitions. Create a single partition for the full capacity of each drive and use that capacity to create the RAID volume. Use the full resulting space as the LVM partition space. Run mkfs on the resulting md device. Re: Adding a software RAID 1 array post-installation Post by kennethbrun » Thu Aug 23, pm Thanks for your reply - I'm definitely confused : The steps you sketched, are the ones I already did - but maybe not succesful.

At least I will try again Anyway I tweaked around with the mdadm. Now mdadm. So I tried to change it to "Master Boot Record" instead. This may result in very poor performance. Knowing that step 2 below takes forever, can you elaborate on the steps after 3 in the mean time? In CentOS 6. You set the partition type to LVM. That is incorrect. It should be type 'fd' Linux raid autodetect.