similar to: Failed Disk RAID10 Problems

Hello Gordon, yeah. it is really strange. from one boot to the next, everyhing is f** up.(2 months between). any idea? [root at quad live]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 1.8T 0 disk ??sda1 8:1 0 1.8T 0 part

On 08/19/2017 12:06 PM, Mr Typo wrote: > sda 8:0 0 1.8T 0 disk > ??sda1 8:1 0 1.8T 0 part > ??WDC_WD20EFRX-68AX9N0_WD-WMC1T2547260 253:3 0 1.8T 0 mpath > ??WDC_WD20EFRX-68AX9N0_WD-WMC1T2547260p1 253:8 0 1.8T 0 part You haven't said anything about multipath hardware yet,

Hello all, i have already had a discussion on the software raid mailinglist and i want to switch to this one :) I am having a really strange problem with my md0 device running centos7. after a new start of my server the md0 was gone. now after trying to find the problem i detected the following: Booting any installed kernel gives me NO md0 device. (ls /dev/md* doesnt give anything). a 'cat

18. Aug 2017 13:35 by euroregistrar at gmail.com: > Hello all, > > i have already had a discussion on the software raid mailinglist and i > want to switch to this one :) > > I am having a really strange problem with my md0 device running > centos7. after a new start of my server the md0 was gone. now after > trying to find the problem i detected the following: > >

I would like to set up CentOS on 4 SATA hard drives that I would like to configure in RAID10. I read somewhere that Raid10 support is in the latest kernel, but I can't seem to get anaconda to let me create it. I only see raid 0, 1, 5, and 6. Even when I tried to set up raid5 or raid1, it would not let me put the /boot partition on it, and I though that this was now possible. Is it

We have DELL R910 with H800 adapter in it. several MD1220 connect to H800. Since MD1220 have 24 hard disks in it. When I configured RAID10, there is a choice call 'single spanned virtual disk" (22 disks). Can anyone tell me how "single spanned virtual disk" work? Any document relate to it? Thanks.

Hello! I have a 1 TB ext4 drive that''s quite full (~50 GB free space, though I could free up another 100 GB or so if necessary) and two empty 0.5 TB drives. Is it possible to get another 1 TB drive and combine the four drives to a btrfs raid10 setup without (if all goes well) losing my data? Regards, Paul -- To unsubscribe from this list: send the line "unsubscribe

I just created a 4 drive mdadm --level=raid10 on a centos 4.8-ish system here, and shortly thereafter remembreed I hadn't updated it in a while, so i ran yum update... while installing/updating stuff, got these errors: Installing: kernel ####################### [14/69] raid level raid10 (in /proc/mdstat) not recognized ... Installing: kernel-smp

hi guys, gals do you know if conversion from lvm's raid10 to raid0 is possible? I'm fiddling with --splitmirrors but it gets me nowhere. On "takeover" subject man pages says: "..between striped/raid0 and raid10."" but no details, nowhere I could find documentation, nor a howto. many thanks, L.

Hello, On my system with a Intel SCU Controller and a Raid 10 System it is not possible to install this Raid10. I have tested this with a CentOS 7 and Opensuse all found my Raid but with CentOS 8 this is broken? I found on start the Installation a Error from mdadm that ist all. Now I download and Test the Stream iso? and hope ..... -- mit freundlichen Gr?ssen / best regards G?nther J,

Hello, on a fs with 4 disks, raid 10 for data, one drive was failing and has been removed. After reboot and ''mount -o degraded...'', the fs looks full, even though before removal of the failed device it was almost 80% free. root@fs0:~# df -h /mnt/b Filesystem Size Used Avail Use% Mounted on /dev/sde 11T 2.5T 41M 100% /mnt/b root@fs0:~# btrfs fi df /mnt/b Data,

Hi! The problem is that the BTRFS raid10 filesystem without any understandable cause refuses to mount. Here is dmesg output: [77847.845540] device label linux-btrfs-raid10 devid 3 transid 45639 /dev/sdc1 [77848.633912] btrfs: allowing degraded mounts [77848.633917] btrfs: enabling auto defrag [77848.633919] btrfs: use lzo compression [77848.633922] btrfs: turning on flush-on-commit [77848.658879]

Hi all, I have a question about replacing a drive in raid10 (and linux kernel 3.8.4). A bad disk was physical removed from the server. After this a new disk was added with "btrfs device add /dev/sdg /btrfs" to the raid10 btrfs FS. After this the server was rebooted and I mounted the filesystem in degraded mode. It seems that a previous started balance continued. At this point I want to

Hi All. I have a server which uses RAID10 made of 4 partitions for / and boots from it. It looks like so: mdadm -D /dev/md1 /dev/md1: Version : 00.90 Creation Time : Mon Apr 27 09:25:05 2009 Raid Level : raid10 Array Size : 973827968 (928.71 GiB 997.20 GB) Used Dev Size : 486913984 (464.36 GiB 498.60 GB) Raid Devices : 4 Total Devices : 4 Preferred Minor : 1

Does anyone know of a card that actually works with CentOS 4 that supports Raid10? I don't think CentOS support software raid 10 from the installer. Thanks, -Drew -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20050812/ab215629/attachment-0002.html>

So after troubleshooting this for about a week, I was finally able to create a raid 10 device by installing the system, copying the md modules onto a floppy, and loading the raid10 module during the install. Now the problem is that I can't get it to show up in anaconda. It detects the other arrays (raid0 and raid1) fine, but the raid10 array won't show up. Looking through the logs

Greetings, until yesterday I was running a btrfs filesystem across two 2.0 TiB disks in RAID1 mode for both metadata and data without any problems. As space was getting short I wanted to extend the filesystem by two additional drives lying around, which both are 1.0 TiB in size. Knowing little about the btrfs RAID implementation I thought I had to switch to RAID10 mode, which I was told is

Hi All, I am looking at ZFS and I get that they call it RAIDZ which is similar to RAID 5, but what about RAID 10? Isn''t a RAID 10 setup better for data protection? So if I have 8 x 1.5tb drives, wouldn''t I: - mirror drive 1 and 5 - mirror drive 2 and 6 - mirror drive 3 and 7 - mirror drive 4 and 8 Then stripe 1,2,3,4 Then stripe 5,6,7,8 How does one do this with ZFS?