similar to: Fiddling with software RAID1 : continue working with one of two disks failing?

Hi All, I'm currently trying to install centos 5.4 x86-64bit on a raid 1, so if one the 2 disks fails the server will still be available. i installed grub on /dev/sda using the advanced grub configuration option during the install. after the install is done i boot in linux rescue mode , chroot the filesystem and copy grub to both drives using: grub>root (hd0,0) grub>setup (hd0)

Hello, I have two disks sda and sdb. One of the was broken so I have changed the broken disk with a working one. I started the server in rescue mode, and created the partional table, and added all the partitions to the software raid. *I have added the partitions to the RAID, and reboot.* # mdadm /dev/md0 --add /dev/sdb1 # mdadm /dev/md1 --add /dev/sdb2 # mdadm /dev/md2 --add /dev/sdb3 # mdadm

it seems like I keep running into a wall. The present raid array...well let me do an fdisk -l: ---------------------------------------- Disk /dev/hda: 250.0 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/hda1 * 1 13 104391 fd Linux

Hello all, I have 2 x 250GB sata disks (sda and sdb). # fdisk -l /dev/sda Disk /dev/sda: 250.0 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 14939 119997486 fd Linux raid autodetect /dev/sda2 14940 29878

I am trying to install CentOS 4.6 to a pair of 750GB hard drives. I can successfully install to either of the drives as a single drive, but when I try to use both drives and mirror the partitions, I start having problems. Anaconda crashes as it is trying to format the drives. This is what I'm trying to create: /dev/md0: 200MB, /boot /dev/md1: 2GB, swap /dev/md2: rest of the

Hello, I'm trying to do a kickstart install of centos5. I'm pulling it off a network server and i'm getting an error, in the parsing of the file. It refers to line 31, i'm not going to show the complete file, but here is the indicated line: raid swap --fstype swap --level=RAID1 raid.4 raid.7 and the raid lines: part raid.7 --size=512 --ondisk=hdb part raid.4 --size=512

Hello fellow CentOS'ers- I've got a system running CentOS 5.0. The motherboard has two onboard SATA ports with two drives attached. I installed the system on a RAID1 setup. However, I'd like to add a hotspare disk to the array. Since there are no additional SATA ports, I've installed an additional controller. After partitioning, the additional drive was easily and successfully

I am planning to increase the disk space on my desktop system. It is running CentOS 5.9 w/XEN. I have two 160Gig 2.5" laptop (2.5") SATA drives in two slots of a 4-slot hot swap bay configured like this: Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

Hello, I had a scientific linux 3.0.4 system (rhel compatible), with 3 ide disks, one for / and two others in linear raid (250 gb and 300 gb each). This system was obsoleted so i move the raid disks to a new scientific linux 3.0.7 installation. However, the raid array was not detected ( I put the disks on the same channels and same master/lsave setup as in the previous setup). In fact

Hello Everyone I have a remote CentOS 6.4 server (with KVM access), when I received the server it was running with LVM on single disk (sda) I managed to remove LVM and install raid 1 in sda and sdb disks the mirroring is working fine, my only issue now is that everytime I reboot the server I got the grub command line and I have manually boot using comand grub> configfile

Hi , currently i have 2 raid devices /dev/md0 and /dev/md1 , i have added 2 new disks, fdisked , created 2 primary partitions with type fd (linux raid autodetect) Now i want to create raid from them root at vmhost1 ~]# mdadm --create --verbose /dev/md2 --level=1 /dev/sdc1 /dev/sdd1 mdadm: error opening /dev/md2: No such file or directory will return that error, what shouldi do? Thanks!

I have a system with 4 disk drives, two 512 Gb and two 1 Tb. It look like this: CentOS release 5.9 (Final) Disk /dev/sda: 500.1 GB, 500107862016 bytes Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes Disk /dev/sdc: 500.1 GB, 500107862016 bytes Disk /dev/sdd: 1000.2 GB, 1000204886016 bytes ================================================================= Disk /dev/sda: 500.1 GB, 500107862016 bytes

Hi all, After rebooting my CentOS 5.5 server, i have the following message: ================================== Red Hat nash version 5.1.19.6 starting EXT3-fs: unable to read superblock mount: error mounting /dev/root on /sysroot as ext3: invalid argument setuproot: moving /root failed: No such file or directory setuproot: error mounting /proc: No such file or directory setuproot: error mounting

We're getting the below errors about once a day on a system we're trying to set up with RedHat 7.3. This has happened to multiple filesystems on multiple physical and logical disks (basically we've got 4 drives as 2 sets of RAID 1 arrays, details below). Until a week ago, this box was a high-volume IMAP server running RedHat 6.2 with uptimes in the 200-day range, so I don't

I am testing EXT3 as a filesystem for a server whose power supply is failure prone. In order to do the test, I have a lever that I can control from PC1 that can press the reset button on PC2. PC2's reset button is automatically pressed once every 120 seconds (the boot sequence on PC2 takes 80 seconds). While PC2 is booted, PC1 directs email and web requests at PC2, so that the PC2 disks are

I am trying to upgrade my system from 500GB drives to 1TB. I was able to partition and sync the raid devices, but I cannot get the new drive to boot. This is an old system with only IDE ports. There is an added Highpoint raid card which is used only for the two extra IDE ports. I have upgraded it with a 1TB SATA drive and an IDE-SATA adapter. I did not have any problems with the system

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

> 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

Hi list, I'm new with UEFI and GPT. For several years I've used MBR partition table. I've installed my system on software raid1 (mdadm) using md0(sda1,sdb1) for swap, md1(sda2, sdb2) for /, md2 (sda3,sdb3) for /home. From several how-to concerning raid1 installation, I must put each partition on a different md devices. I've asked times ago if it's more correct create the

I am running software RAID1 on a somewhat critical server. Today I noticed one drive is giving errors. Good thing I had RAID. I planned on upgrading this server in next month or so. Just wandering if there was an easy way to fix this to avoid rushing the upgrade? Having a single drive is slowing down reads as well, I think. Thanks. Feb 7 15:28:28 server smartd[2980]: Device: /dev/sdb