similar to: RAID not software raid

On 12/05/2014 01:50 PM, Jeff Boyce wrote: > > ----- Original Message ----- From: "Mark Milhollan" <mlm at pixelgate.net> > To: "Jeff Boyce" <jboyce at meridianenv.com> > Sent: Thursday, December 04, 2014 7:18 AM > Subject: Re: [CentOS] CentOS 7 install software Raid on large drives error > > >> On Wed, 3 Dec 2014, Jeff Boyce wrote:

I installed Centos 6.x 64 bit with the minimal ISO and used two disks in RAID 1 array. Filesystem Size Used Avail Use% Mounted on /dev/md2 97G 918M 91G 1% / tmpfs 16G 0 16G 0% /dev/shm /dev/md1 485M 54M 407M 12% /boot /dev/md3 3.4T 198M 3.2T 1% /vz Personalities : [raid1] md1 : active raid1 sda1[0] sdb1[1] 511936 blocks super 1.0

----- Original Message ----- From: "Mark Milhollan" <mlm at pixelgate.net> To: "Jeff Boyce" <jboyce at meridianenv.com> Sent: Thursday, December 04, 2014 7:18 AM Subject: Re: [CentOS] CentOS 7 install software Raid on large drives error > On Wed, 3 Dec 2014, Jeff Boyce wrote: > >>I am trying to install CentOS 7 into a new Dell Precision 3610. I have

>> I am trying to install Centos 7 on a couple 4TB drives with software >> raid. In the Supermicro bios I set UEFI/BIOS boot mode to legacy. I >> am using the Centos 7 minimal install ISO flashed to a USB thumb >> drive. >> >> So I do custom drive layout something like this using sda and sdb. >> >> Create /boot as 512 MB XFS raid1 array. >>

Matt wrote: > I am trying to install Centos 7 on a couple 4TB drives with software > raid. In the Supermicro bios I set UEFI/BIOS boot mode to legacy. I > am using the Centos 7 minimal install ISO flashed to a USB thumb > drive. > > So I do custom drive layout something like this using sda and sdb. > > Create /boot as 512 MB XFS raid1 array. > > Create SWAP as 32 GB

I am trying to install Centos 7 on a couple 4TB drives with software raid. In the Supermicro bios I set UEFI/BIOS boot mode to legacy. I am using the Centos 7 minimal install ISO flashed to a USB thumb drive. So I do custom drive layout something like this using sda and sdb. Create /boot as 512 MB XFS raid1 array. Create SWAP as 32 GB SWAP raid1 array. Create / on 3.xxx TB XFS raid1 array.

I have configured 2x 500G sata HDD as Software RAID1 with three partitions md0,md1 and md2 with md2 as 400+ gigs Now it is almost 36 hours the status is cat /proc/mdstat Personalities : [raid1] md0 : active raid1 hdb1[1] hda1[0] 104320 blocks [2/2] [UU] resync=DELAYED md1 : active raid1 hdb2[1] hda2[0] 4096448 blocks [2/2] [UU] resync=DELAYED md2 : active raid1

This is what I have for configuring software raid on sata drives in my kickstart config <snip kickstart.cfg> clearpart --initlabel --all part swap --size=2048 --ondisk=sdb part swap --size=2048 --ondisk=sda part raid.01 --size=101 --ondisk=sda part raid.02 --size=101 --ondisk=sdb part raid.04 --size=1 --grow --ondisk=sdb part raid.03 --size=1 --grow --ondisk=sda raid / --fstype ext3

Le 18/02/2015 09:24, Michael Volz a ?crit : > Hi Niki, > > md127 apparently only uses 81.95GB per disk. Maybe one of the partitions has the wrong size. What's the output of lsblk? [root at nestor:~] # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 232,9G 0 disk ??sda1 8:1 0 3,9G 0 part ? ??md126 9:126 0 3,9G 0 raid1 [SWAP] ??sda2 8:2

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

The apology first. If I've offended anyone, or just annoyed anyone, I apologize for that. I sometimes can go 'off the deep end' when I'm being sarcastic (an old habit from my news.admin days when I ran a Usenet site in the early 90's), and I'll try to not go into news.admin mode here in the future. Now, the question. I have a few ideas about how to do this, but am

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

Greetings ... Been lurking on the list for some time, hoping that at some point, I might be able to add to the collective (Yes, way to much StarTrek in the background! ) ... I have learn quite a bit by just lurking, but now I think I might have something to add ... I'm not sure the exact protocol or procedure for this and it's late in the evening and would like get this out, before I

I have a machine on CentOS 5 with two disks in RAID1 using Linux software RAID. /dev/md0 is a small boot partition, /dev/md1 spans the rest of the disk(s). /dev/md1 is managed by LVM and holds the system partition and several other partitions. I had to take out disk sda from the RAID and low level format it with the tool provided by Samsung. Now I put it back and want to reassemble the array.

Basically the issue comes down to my Volume Groups not being found by this initrd, causing good ole kernel panic. initrd-2.6.12.6-xen3_12.1_rhel4.1.img [root@xen01 lvm]# uname -a Linux xen01.inside.***.com 2.6.9-22.0.2.ELsmp #1 SMP Thu Jan 5 17:13:01 EST 2006 i686 i686 i386 GNU/Linux [root@xen01 lvm]# cat /etc/redhat-release Red Hat Enterprise Linux ES release 4 (Nahant Update 2) Everything

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

Greetings - I am trying to install CentOS 7 into a new Dell Precision 3610. I have two 3 TB drives that I want to setup in software RAID1. I followed the guide here for my install as it looked fairly detailed and complete (http://www.ictdude.com/howto/install-centos-7-software-raid-lvm/). I only changed the size of the partitions from what is described, but ended up with the disk

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, since weeks I was ignoring this warning at my CentOS 5.6/64 bit machine - /etc/cron.weekly/99-raid-check: WARNING: mismatch_cnt is not 0 on /dev/md0 in the hope that the software RAID will slowly repair itself. I also had executed "echo 100000 > /proc/sys/dev/raid/speed_limit_max" on the advice from the mailing list. But now my web server is offline - I had to boot

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