Questions tagged [mdadm] (45)

2
answers

I have error "not large enough to join array" when trying to attach the disk to the array mdadm?

When a connection is attempted, the new blank disk to the array mdadm? error "not large enough to join array", it is not clear why this is happening. After I copied the partitions with sfdisk command, the idea should be the same... linu Disks of different models but the same volume...
Christelle.Herzog51 asked April 7th 20 at 09:16
1
answer

What's in a software RAID0 (Ubuntu) wrong?

Only now noticed. Everything works without errors. BUT: sudo fdisk --list ... The primary GPT table is corrupt, but the backup seems to be all right, so it will be used. Disk /dev/sdc: 1,8 TiB, 2000398934016 bytes, 3907029168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 byte...
Mason_Medhur asked April 2nd 20 at 17:08
2
answers

How to migrate a Debian OS installed on a RAID1 consisting of two disks on new PC with new hardware?

Hello, there is this idea to be put on the server Debian, during the installation of Debian put on a software RAID1 of two disks on top to install ProxMox and raise virtual. But there is the question of what to do if the motherboard and the CPU is dead and need an urgent move to another iron? How this move will look like,...
Elliott_Herman12 asked April 2nd 20 at 16:29
3
answers

How to partition the drive when using RAID1 in Linux?

Broke a disk into sections and made each section of the RAID would use under Proxmox. Tell me, what is the error and why? How can I improve?
Nora_Tromp asked April 2nd 20 at 16:29
1
answer

How to increase the size mdadm RAID10?

Hi all. Is RAID10 in mdadm. Originally there was a 4 disc 4TB. One by one replaced them with drives 8Tb (removed from a RAID disk, inserted new larger did --add, wait for rezinka). Now I have a array: # cat /proc/mdstat Faceted personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : ac...
alvina_Will asked March 23rd 20 at 18:24
4
answers

RAID 10: disk replacement at large?

Hello! Is RAID 10 in MDADM. 4 disk 4Tb. I want to replace the drives for 8Tb without deleting data (backup, however, is). Whether the ride scheme: 1) pull drive 4TB 2) insert the disk 8TB 3) add a disk to the RAID (after creating a partition on the entire volume available) 4) wait for smearing of the data on the added disk...
Jakob.Cole asked March 21st 20 at 13:32
1
answer

16.04 Ubuntu Server: how to convert installed OS in uefi without data loss?

Hello! My task is: to migrate the installed OS with one drive in a mdadm RAID1 consisting of 2 disks. I managed to do that. The data were transferred to degraded RAID1 (one disk), was amended by the loader after successfully loading the first disc was just added in RAID1. Now I have a RAID1 of SATA SSD + NVME SSD. But the ...
emor asked March 17th 20 at 12:28
2
answers

Migration 16.04 installed Ubuntu Server on RAID1 — how to do?

Given: 16.04 Ubuntu Server, installed on a SSD. Need: to migrate the installed OS without losing data on softreyd 2 SSD (NVME), able to boot only using UEFI. Can it be done and if so, how?
Maeve_Kunze64 asked March 17th 20 at 11:27
1
answer

Mdadm + UEFI — how to configure booting from both members of the RAID drives?

Hi all. 16.04.1 have Ubuntu Server installed on NVME SSD (UEFI). The partition structure is this:Device Start End Sectors Size Type /dev/nvme0n1p1 2048 585727 583680 285M Microsoft basic data /dev/nvme0n1p2 585728 39647231 39061504 of 18.6 G Linux RAID On the first partition (FAT32) are needed to boot via UEFI files (mounte...
Alfredo.Prosacco asked March 16th 20 at 14:34
2
answers

How to replace a failed disk in mdadm RAID10?

So, I had a RAID10 of sda1, sdb1, sdc1, sdd1. SDD1 has died. After reboot I see: #cat /proc/mdstat Faceted personalities : [raid10] [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] md0 : active raid10 sdb1[1] sdc1[2] sda1[0] 5860268032 blocks super 1.2 512K chunks 2 near-copies [4/3] [UUU_] bitmap: 21/44 pag...
Sebastian asked March 14th 20 at 15:22