5

Where is my array?

view full story
linux-howto

http://www.linuxquestions.org – I have recently installed Debian 505 to replace 504 because one of its new features is "experimental support" for sata software raid1. I have also tried to set up raid 1 at the same time but I cannot find how to access the array. I installed the OS on a PATA drive and used 2 new SATA drives for the raid1 array (intended for data). The installer seemed to want a mount point for Raid1, so I gave /media/disk. Raid1 was not working after reboot, I then tried the following command: mdadm --create /dev/md0 --metadata=1 --level=1 --raid-d (HowTos)

jiqi2's picture
Submitted by jiqi2 on 07/23/2010 – Made popular on 07/23/2010

Stories similar to Where is my array?

I'm curious if anybody can piece together some degree of logic to my story. My server is running 12.04, and it has 3 drives installed.

160GB = OS 2x500GB (RAID1 Mirror via mdadm) = /media/NAS

I noticed the files on my web server were gone one day, yet Apache was responding properly.

I have two slightly different 1 TB hard drives and I want to create a RAID1. I have spent last 5 hours trying to archive the same effect on virtual machine, because I want to test it out before playing with 500GB of data (but I also have a backup of this).

/dev/sda is drive with system /dev/sdb is empty drive

I have done following:

dd if=/dev/sda of=/dev/sdb bs=32M

and then:

mdadm --create

Hello I have very strange problem creating swraid on Debian Squeeze Linux. I started creating RAID1 from existing standard instalation of Debian on single drive. So I bought new drive and started following this tutorial: http://www.howtoforge.com/how-to-set-up-software-raid1-on-a-running-syst...

Everything went fine, i created initial raid from new drive.

I'm not quite sure what happened, but the first disk of my Raid1 array disappeared.

Motherboard: Gigabyte GA-MA790XT-UD4P - AMD 790X chipset

I have created a SATAII RAID1 array for a Linux OS installation from DVD. I intend to use RAID1 for the OS and log files, and a separate RAID5 array for data.

Software Raid1 problems 2 years 32 weeks ago

Well I guess I'm back with new questions! I "almost" successfully implemented a RAID1 setup in my server using a VERY good website

https://raid.wiki.kernel.org/index.p...ID_Boot_Recipe

Basically, I had a working system on a SATA HDD but the drive died. I transferred (using dd) all data to a new HDD, and got an identical HDD for RAID1.

I had a desktop's motherboard die on me, and now I'm attempting to recover the data from one of its two hard drives, which were being used in a RAID1 software RAID via mdadm. I bought a SIIG SATA3 to USB adapter, and attached it to my Ubuntu laptop, and although I hear the drive spin up, Ubuntu doesn't automount anything.

However, the Disk Utility shows it as a USB peripheral device.

Array info:

/dev/md0 -> /dev/sda1 and /dev/sdb1

/dev/md2 -> /dev/sda2 and /dev/sdb2

Partition info:

/boot -> /dev/md0

/ -> /dev/md1

I have two drives that are setup as RAID1 using software RAID on Redhat. I added two additional drives (same size) and I would like to conver the RAID1 to a RAID10. The problem I'm having is adding the last drive to the array.

Hi! On my headless NAS I have raid1 (md0) with two hdd (sda, sdb; sdc is a system).