similar to: mdadm: failed to write superblock to

Hi, I have a machine setup as software-raid + ext3 + redhat , but this morning, it seems the file system crash. here is the booting message, anyone has any idea how to fix it. Thanks! Donghui ---------------------------------------------------------------------------- ------ md: adding sda1 md: created md2 md: using <sdb1> <sda1> md: md2: raid array is not clean -- starting

So I'm trying to RAID-1 this system which has two identical disks installed in it, and it isn't working for some reason. I started by doing a CentOS-4 install on /dev/sda1 as root, and with /dev/sda2 as my swap. I finish the install, yum update, and then I want to make the mirrors. I copy the partition table from one disk to the other: # sfdisk -d /dev/sda | sfdisk /dev/sdb I create

> Hi. > > CENTOS 7.6.1810, fresh install - use this as a base to create/upgrade > new/old machines. > > I was trying to setup two disks as a RAID1 array, using these lines > > mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/sdb1 > /dev/sdc1 > mdadm --create --verbose /dev/md1 --level=0 --raid-devices=2 /dev/sdb2 > /dev/sdc2 > mdadm

I'm using Centos 4.5 right now, and I had a RAID 5 array stop because two drives became unavailable. After adjusting the cables on several occasions and shutting down and restarting, I was able to see the drives again. This is when I snatched defeat from the jaws of victory. Please, someone with vast knowledge of how RAID 5 with mdadm works, tell me if I have any chance at all

In article <20190225050144.GA5984 at button.barrett.com.au>, Jobst Schmalenbach <jobst at barrett.com.au> wrote: > Hi. > > CENTOS 7.6.1810, fresh install - use this as a base to create/upgrade new/old machines. > > I was trying to setup two disks as a RAID1 array, using these lines > > mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/sdb1

Hi. CENTOS 7.6.1810, fresh install - use this as a base to create/upgrade new/old machines. I was trying to setup two disks as a RAID1 array, using these lines mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/sdb1 /dev/sdc1 mdadm --create --verbose /dev/md1 --level=0 --raid-devices=2 /dev/sdb2 /dev/sdc2 mdadm --create --verbose /dev/md2 --level=0 --raid-devices=2

On 04/23/2022 09:19 PM, H wrote: > On 04/19/2022 09:57 AM, Roberto Ragusa wrote: >> On 4/18/22 1:27 PM, H wrote: >>> I have a new computer with 2 x 2TB SSDs where I wanted to install C7 and use mdadm for RAID1 configuration and encrypting the /home partition. On the net I found https://tuxfixer.com/centos-7-installation-with-lvm-raid-1-mirroring/ which I adopted slightly with

Hi, I have two 320 GB SATA disks (/dev/sda, /dev/sdb) in a server running CentOS release 5. They both have three partitions setup as RAID1 using md (boot, swap, and an LVM data partition). # cat /proc/mdstat Personalities : [raid1] md0 : active raid1 sdb1[1] sda1[0] 104320 blocks [2/2] [UU] md1 : active raid1 sdb2[1] sda2[0] 4192896 blocks [2/2] [UU] md2 : active raid1 sdb3[1]

Hi I have a disk which two of the partitions are part of a RAID1 setup. I'm trying to rename the the second raided partition mdadm -E /dev/sdc4 /dev/sdc4: Magic : a92b4efc Version : 1.2 Feature Map : 0x1 Array UUID : 83d7657b:ebfddcb7:36b0fa14:d29a350c Name : oldname:2 Creation Time : Tue Aug 30 15:25:10 2016 Raid Level : raid1 Raid Devices : 2

On 2/24/19 9:01 PM, Jobst Schmalenbach wrote: > I tried to delete the MDX, I removed the disks by failing them, then removing each array md0, md1 and md2. > I also did > > dd if=/dev/zero of=/dev/sdX bs=512 seek=$(($(blockdev --getsz /dev/sdX)-1024)) count=1024 Clearing the initial sectors doesn't do anything to clear the data in the partitions.? They don't become blank

Hello folks, I am experiencing a weird problem at bootup with large RAID-6 arrays. After Googling around (a lot) I find that others are having the same issues with CentOS/RHEL/Ubuntu/whatever. In my case it's Scientific Linux-6 which should behave the same way as CentOS-6. I had the same problem with the RHEL-6 evaluation version. I'm posting this question to the SL mailing list

Somewhere, mdadm is cacheing information. Here is my /etc/mdadm.conf file: more /etc/mdadm.conf # mdadm.conf written out by anaconda DEVICE partitions MAILADDR root ARRAY /dev/md0 level=raid1 num-devices=4 metadata=0.90 UUID=55ff58b2:0abb5bad:42911890:5950dfce ARRAY /dev/md1 level=raid1 num-devices=2 metadata=0.90 UUID=315eaf5c:776c85bd:5fa8189c:68a99382 ARRAY /dev/md2 level=raid1 num-devices=2

> On 2/24/19 9:01 PM, Jobst Schmalenbach wrote: >> I tried to delete the MDX, I removed the disks by failing them, then >> removing each array md0, md1 and md2. >> I also did >> >> dd if=/dev/zero of=/dev/sdX bs=512 seek=$(($(blockdev --getsz >> /dev/sdX)-1024)) count=1024 > > > Clearing the initial sectors doesn't do anything to clear the

I have a new computer with 2 x 2TB SSDs where I wanted to install C7 and use mdadm for RAID1 configuration and encrypting the /home partition. On the net I found https://tuxfixer.com/centos-7-installation-with-lvm-raid-1-mirroring/ which I adopted slightly with respect to partition sizes, using RAID1 for /boot and /root as well and added the /home partition with RAID1 and chose to have /home

Hey, I installed 2 new data servers with a big (12TB) RAID6 mdraid. I formated the whole arrays with bad blocks checks. One server is moderately used (nfs on one md), while the other not. One week later, after the raid-check from cron, I get on both servers a few block_mismatch... 1976162368 on the used one and a tiny bit less on the other...? That seems a tiny little bit high... I do the

Hello I have a CentOS 6.6 Server with 13 disks in a RAID 6. Some weeks ago, i upgraded it to 17 disks, two of them configured as spare. The reshape worked like normal in the beginning. But at 69% it stopped. md2 : active raid6 sdj1[0] sdg1[18](S) sdh1[2] sdi1[5] sdm1[15] sds1[12] sdr1[14] sdk1[9] sdo1[6] sdn1[13] sdl1[8] sdd1[20] sdf1[19] sdq1[16] sdb1[10] sde1[17](S) sdc1[21] 19533803520

Hello. A couple of years ago I installed two file-servers using kickstart. The server has two 1TB sata disks with two software raid1 partitions as follows: # cat /proc/mdstat Personalities : [raid1] md1 : active raid1 sdb4[1] sda4[0] 933448704 blocks [2/2] [UU] md0 : active raid1 sdb1[1] sda2[2](F) 40957568 blocks [2/1] [_U] Now the drives are starting to be failing and next week

> On Mon, Feb 25, 2019 at 11:54 PM Simon Matter via CentOS > <centos at centos.org> > wrote: > >> > >> > What makes you think this has *anything* to do with systemd? Bitching >> > about systemd every time you hit a problem isn't helpful. Don't. >> >> If it's not systemd, who else does it? Can you elaborate, please? >> >

Hi, I'm running a production server (Debian Sarge install) whose root filesystem (a software raid 1 array of 2 partitions of IDE drive) exhibited the following problem: Oct 28 06:00:06 server2 kernel: attempt to access beyond end of device Oct 28 06:00:06 server2 kernel: md2: rw=1, want=3050401328, limit=16353920 [...] a few of the above line snipped, want is different each time Oct 28

Hello, I added a new disk into our RAID5 array, it looks like this: md2 : active raid5 sdd4[3] sde4[4] sda4[0] sdc4[2] sdb4[1] 3767274240 blocks level 5, 64k chunk, algorithm 2 [5/5] [UUUUU] # btrfs fi sh Label: none uuid: 5534d2e7-be31-49c7-8ab7-90c5ab8afe18 Total devices 1 FS bytes used 2.24TB devid 3 size 2.63TB used 2.63TB path /dev/md2 # mount ... /dev/md2 on /home type btrfs