similar to: Possible bug with latest 7.3 installer, md RAID1, and SATADOM.

Is there a reason you are not using the built in controller to RAID the SATADOMs? As I remember on SuperMicro there are two controllers. One for the SATADOMs and another for the conventional disks. Cameron On Fri, Apr 14, 2017 at 2:28 PM, David C. Miller <millerdc at fusion.gat.com> wrote: > I'm seeing a problem that I think maybe a bug with the mdraid software on > the latest

Hello! somewhere in maillist I've seen RAID1+md concat+XFS being promoted as mailstorage. Does anybody in here actually use this setup? I've decided to give it a try, but ended up with not being able to recover any data off survived pairs from linear array when _the_first of raid1 pairs got down. thanks!

On 01/11/2023 01:33 PM, H wrote: > On 01/11/2023 02:09 AM, Simon Matter wrote: >> What I usually do is this: "cut" the large disk into several pieces of >> equal size and create individual RAID1 arrays. Then add them as LVM PVs to >> one large VG. The advantage is that with one error on one disk, you wont >> lose redundancy on the whole RAID mirror but only on

> Follow-up question: Is my proposed strategy below correct: > - Make a copy of all existing directories and files on the current disk using clonezilla. > - Install the new M.2 SSDs. > - Partitioning the new SSDs for RAID1 using an external tool. > - Doing a minimal installation of C7 and mdraid. > - If choosing three RAID partitions, one for /boot, one for /boot/efi and the

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]

I have 3 4TB WD drives I want to put in a RAID1 array. Two WD4000FYYZ and One WD4000F9YZ All enterprise class but two are WD Re and one is WD Se. I ordered the first two thinking 2 drives in the raid array would be sufficient but later decided its a long drive to the server so I would rather have 3 drives and ordered a third in accidentally did not get EXACT same thing. Would there be ANY

> On 01/11/2023 01:33 PM, H wrote: >> On 01/11/2023 02:09 AM, Simon Matter wrote: >>> What I usually do is this: "cut" the large disk into several pieces of >>> equal size and create individual RAID1 arrays. Then add them as LVM PVs >>> to >>> one large VG. The advantage is that with one error on one disk, you >>> wont >>>

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 have this ASUS M2NBP-VM motherboard http://tinyurl.com/3xby3h running CentOS 4.4 as a web/email server. It has a 500Gb SATA2 drive with about 32Gb in use. The motherboard supports hardware raid. Is there a way to switch to RAID1 without reinstalling or loosing any data? Also, if I am running raid how do I know if there is a failure on one of the drives anyway? Is hardware RAID1 a good idea?

Hi all, I have one drive fails on a software 2TB RAID1. I have removed the failed partition from mdraid and now ready to replace the failed drive. I want to ask for opinion if there is better way to do that other than: 1. Put the new HDD. 2. Use parted to recreate the same partition scheme. 3. Use mdadm to rebuild the RAID. Especially #2 is rather tricky. I have to create an exact partition

On 01/11/2023 02:09 AM, Simon Matter wrote: > What I usually do is this: "cut" the large disk into several pieces of > equal size and create individual RAID1 arrays. Then add them as LVM PVs to > one large VG. The advantage is that with one error on one disk, you wont > lose redundancy on the whole RAID mirror but only on a partial segment. > You can even lose another

Hi messmer, seems that anaconda supports partitioned RAID devices. Disk selection see one mdraid device and permits to create partition on it. Il 13/03/2016 01:04, Gordon Messmer ha scritto: > On 03/12/2016 08:22 AM, Alessandro Baggi wrote: >> From several how-to concerning raid1 installation, I must put each >> partition on a different md devices. > > Not necessarily. You

I have the CentOS 5.5 install DVD and trying to install with software RAID1 on two 2TB SATA drives. The CentOS install only sees one drive. This is a Supermicro motherboard with fakeraid turned off in bios. I tried the trick like so: dd if=/dev/zero of=/dev/sda bs=512 count=64 dd if=/dev/zero of=/dev/sdb bs=512 count=64 Still no go. linux rescue console does see both sda and sdb. Whats

why will Centos 6 not boot from an mdraid 10 partition?

On 10/7/2015 3:14 PM, Matt wrote: > I have 3 4TB WD drives I want to put in a RAID1 array. > > Two WD4000FYYZ > > and > > One WD4000F9YZ > > All enterprise class but two are WD Re and one is WD Se. I ordered > the first two thinking 2 drives in the raid array would be sufficient > but later decided its a long drive to the server so I would rather > have 3

John R Pierce wrote: > On 10/7/2015 3:14 PM, Matt wrote: >> I have 3 4TB WD drives I want to put in a RAID1 array. >> >> Two WD4000FYYZ >> >> and >> >> One WD4000F9YZ >> >> All enterprise class but two are WD Re and one is WD Se. I ordered >> the first two thinking 2 drives in the raid array would be sufficient >> but later

On Wed, 10 Apr 2019 08:38:04 -0700, Benjamin Smith <lists at benjamindsmith.com> wrote >I drove to the site, picked up the machine, and last night found that the >problem wasn't anything to do with mdadm, but rather setting a partition to >GPT. For some reason, you *cannot* have a partition of type GPT and expect >Linux to boot. (WT F/H?!?) If you want to boot a BIOS

Has anybody tried or knows if it is possible to create a MD RAID1 device using networked iSCSI devices like those created using OpenFiler? The idea I'm thinking of here is to use two OpenFiler servers with physical drives in RAID 1, to create iSCSI virtual devices and run CentOS guest VMs off the MD RAID 1 device. Since theoretically, this setup would survive both a single physical drive

I am trying to install CentOS5 on a new HP DL360e G8 with B120i disk controller. It appears that a proprietary HP driver is needed for it. I found a useful description at http://www.linuxhelp.in/2013/08/Installing-centos-on-HP-Proliant-DL360e-Gen8-with-B120i-controller.html I have a pair of hard drives to use as a RAID1 mirror. My question to people who may have been this way already is: is it

Once upon a time, Simon Matter <simon.matter at invoca.ch> said: > Are you sure that's still true? I've done it that way in the past but it > seems at least with EL8 you can put /boot/efi on md raid1 with metadata > format 1.0. That way the EFI firmware will see it as two independent FAT > filesystems. Only thing you have to be sure is that nothing ever writes to >