Re-assembled Software Raid5 Now With No File System

Hello, I am wanting to eventually migrate from software RAID to hardware.
I remember one time I attempted to migrate a system with software RAID to a non-RAID system but of course it crashed because it was expecting RAID at the new location.
I need to be able to copy an entire filesystem from a software-RAID system without this being an issue, so mainly I need to know which files/folders to skip.
Thanks in advance.

Hello everyone,

I recently had an issue where I lost my whole backup server due to an electrical overload causing my server to literally explode and fried all 4 of my terabyte drives.... needless to say, I have no more backups because of this, and everywhere I read about backups said that setting up a raid array would allow me to keep good backups.... boy did I learn this lesson the hard way in needing to have some sort of external backup option, which brings me to this post and my questions:

I'm using Ubuntu 14.04 LTS server on an older Dell Poweredge 600sc, and I was thinking of using WD Passport 1Tb external drives to be used as my "offsite" backup option. I don't have a lot of data, and my current backup schedule is only a weekly backup, so thinking that if I have two of these passport drives so that I can have one drive offsite and one attached to the server, and rotate them every 4 weeks so as not to loose all my data.

Here's my question: Ideally, I would love to just be able to unplug the current drive, plug in the new drive and have everything work. However, I don't see this actually working, but if there's a way to do this, that would be totally awesome.... ;-)

So, realistically, I know I will have to unmount the one drive, unplug it, then plug in the new drive and mount it on the system. Is there a way to mount this to the same mount point automatically so that I don't have to rewrite my backup script each time I swap drives out so that the backups go to the same mount point? Or will the UUID's get messed up each time I do this?

Hopefully this makes sense and an easy solution can be found to accomodate this idea.....

Thanks again for all your help. This site is awesome for newbies such as myself........

Mikey

On my current system I have drives sda, sdb, sdc; 1TB, 1.5TB, 1.5TB respectively.
SATA drive a is where I installed the OS and the other SATA drives b and c are from an old system that was linux software mirror, something I was using to play and learn. Now I have added b and c to my current system and before doing so I stopped the mirror and removed the partitions. I added the drives to my current system and used cfdisk to create one partition on each and then mounted the new drives. I then run ls and I see bin/....etc. listed in the new drive. Is this normal or when I create the new drive partitions should I use Logical instead of Primary.

Is there a way to get my drives back to non raid that I have missed doing?

Thanks

first off, hello all, I'm Gimpacause and I am just starting to use Linux again after about 12 years

I recently bought a Backblaze storage pod and Installed 15x6Tb hard drives (in Raid6+LVM) using this guide


recently due to a faulty UPS and power issues at my place, i have fried the mainboard and boot drive

i dont have anything backed up from my previous Ubuntu install


i have replaced the boot drive installed Ubuntu 14.04 LTS (including MDADM & XFSProgs) installed a replacement mainboard (exact same model/revision) can please someone point me to a guide , or advise how i proceed recovering the raid & lvm so my data is still intact, I have not attempted anything yet for frear of data loss

if you require any logs/information i am hgappy to provide them

many thanks

I am trying to create a combined media and storage server (NAS) on my new Unbuntu server. I have a 256GB drive as my boot drive and I have two 1TB drives that are empty. I want to use the two 1TB drives as storage for some important data and also for the media that will be played/collected for my XMBC server. I want to be able to access/manipulate these shares/files/data from my Windows computers over my home network.

I have Unbuntu 14.04 and Webmin installed.

I greatly appreciate any assistance. I feel like I am running around in circles on Webmin with this.

Hey Everyone,
I'm pretty new to linux, I'm a long time mac user, and have been using a Mac Mini as my Plex and wordpress server for some time. Looking at Apples latest generation of Mac Minis, it looks like they no longer are a great option for servers. So here's my setup and wants in a nut shell.

Currently my Mac Mini hosts 3 wordpress sites and is my Plex server. The machine is running OS 10.10.2 Yosemite with Server running, and has 2 Drobo Gen 2 devices attached via Firewire 800.

I use 1 Drobo for my Plex Media, and the other drobo is used for machine backup.

Reading online, Looks like the Drobo 1 and 2 Genereations only show up as 2TB max segments on Linux So I would scrap the Drobo cases and put all the drives internal into the linux server tower.

I want to build a new Linux server that can take over these tasks. So my wants would be, A linux server that can host more than 1 wordpress site, run plex, and would have a RAID setup similar to Drobo, where I can add more drives or replace smaller/failed drives easily enough (doesn't have to be automatic rebuild like the drobo, as long as its possible and not to tricky to do)

what Linux Server OS and other options should I be looking at?

thanks everyone in advance!!

We are going in cricles to try to get our Ubuntu installation (14.04.1) to allow us to load Ubuntu's operating system to the 500 GB drive which is always set up somehow as SDC. We do not want the BOOT LOADER on the RAID Arrays, but on the 500 GB drive. We have two sets of RAID arrays in one box/enclosure.

/dev/sda - 18 TB RAID Array
/dev/sdb - 12 TB RAID Array
/dev/sdc - 500 GB Raptor Drive <-- We want this one to be the sda drive and where we'd load the BOOT LOADER also.

How do we do this?

Hi guys

We are urgently moving Oracle application to a backup server for some patching etc. The backup server is installed with Oracle 6.6 64Bit linux with default partitions. We found that the system has ext4 file system, while our external storage through HBA interface/IBM is formatted with ext3 file system.
Hence, please let us know what kind of performances issues we may come across, or the same could be ignored?

regards

Hello,
I installed CentOS on software RAID10 but made the mistake of installing /boot on /dev/sda instead of on md0. Now I fear that if sda fails my system won't be bootable. Is there a way to correct this?
I can't reinstall because we need the server online.

Hi all!! Im new in this forum and also new at linux !!

I am installing an application that includes automatically the instalation of CentOS 6.3.

The server that hosts this application and OS had a power outage and then when i turn on the server again i get the error that you can see in this pictu http://postimg.org/image/7opm0xzel/

I have 2 disks in the system, 1 for the application and SO and other to store call recordings (thats what the application do, record calls!).

If I re-install the system it has no problem!! But i dont want to re-install the system every time i have a power outage because i lost too much and important information.

I have installed this application in other server and had no problem with power outage. In this server the diference is that it originally had raid and i "remove it" frome the BIOS. Maybe here is the problem??

Anyone can help me?? Remember im really new in linux !!