Hello all,
a hard disk has been throwing SMART errors for the last three days.
[SAT], ATA error count increased from 13 to 15
I have already ordered a new one, but it is still on its way. And hopefully it is the harddisk itself, and not other components.
The affected disk was mounted as /dev/sdd. Today, however, I briefly saw that it was listed in the system as /dev/sdh. And my raid has one less disk. After a reboot is it again /dev/sdd but not in the Raid 5.
I think it makes no sense to include the defective disk in the raid again. And I currently have no option via the interface.
Since I have never had and done this before:
What is the best way to proceed once I have the new disk?
Backups of all data on the RAID are of course available on external hard disks.
Is it sufficient:
1) to replace the harddisk
2) In the overview of the harddisk to "wipe" the disk
3) will then the harddisk will be listed under the point "Recover" in the Raid at the Interface?
Thanks for helping
Vuke
OMV 4.1.36-1
cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid1] [ra id10]
md127 : active raid5 sda[0] sdc[2] sdb[1]
23441685504 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/3] [UUU_]
bitmap: 13/59 pages [52KB], 65536KB chunk
blkid
/dev/sda: UUID="25a95af2-bc96-c52c-12e7-33a7eda5b7db" UUID_SUB="76c96be2-9715-31e6-f106-2b926356de10" LABEL="openmediavault:raiddata" TYPE="linux_raid_member"
/dev/sdd: UUID="25a95af2-bc96-c52c-12e7-33a7eda5b7db" UUID_SUB="eef8fd0a-9511-b612-2e38-ff6ebe4d3a02" LABEL="openmediavault:raiddata" TYPE="linux_raid_member"
/dev/sde1: UUID="89d35dd0-b414-4027-bd96-e72e5d90c2f1" TYPE="ext4" PARTUUID="b3f3432d-4419-487d-a86f-445c1640a513"
/dev/sdf1: UUID="67a1bf27-bc53-48b2-af6b-e51dd0fcac61" TYPE="ext4" PARTLABEL="primary" PARTUUID="cbcfecee-0c1f-4c85-92c0-aa13861a232f"
/dev/sdb: UUID="25a95af2-bc96-c52c-12e7-33a7eda5b7db" UUID_SUB="ad345581-76a5-2fc4-47b0-f5b5c1441bef" LABEL="openmediavault:raiddata" TYPE="linux_raid_member"
/dev/sdc: UUID="25a95af2-bc96-c52c-12e7-33a7eda5b7db" UUID_SUB="0bb3a138-a123-dba9-46d3-e918f8727c49" LABEL="openmediavault:raiddata" TYPE="linux_raid_member"
/dev/sdg1: UUID="c27d8b78-4d36-411a-8a60-ad125ccc162d" TYPE="ext4" PARTUUID="185dd29e-01"
/dev/sdg5: UUID="8fee8f36-648b-4fb6-8eb8-24a650546bc1" TYPE="swap" PARTUUID="185dd29e-05"
/dev/md127: LABEL="bigdata" UUID="e7908853-9d37-4707-934a-0300df111826" TYPE="ext4"
fdisk -l | grep "Disk "
Disk /dev/sda: 7,3 TiB, 8001563222016 bytes, 15628053168 sectors
Disk /dev/sdd: 7,3 TiB, 8001563222016 bytes, 15628053168 sectors
Disk /dev/sde: 9,1 TiB, 10000831348736 bytes, 19532873728 sectors
Disk identifier: 902B1A50-53D9-475C-A8EA-D7688C3B252A
Disk /dev/sdf: 5,5 TiB, 6001175126016 bytes, 11721045168 sectors
Disk identifier: A5EE3626-AB57-40AC-A30F-3DDA7A2B424D
Disk /dev/sdb: 7,3 TiB, 8001563222016 bytes, 15628053168 sectors
Disk /dev/sdc: 7,3 TiB, 8001563222016 bytes, 15628053168 sectors
Disk /dev/sdg: 119,2 GiB, 128035676160 bytes, 250069680 sectors
Disk identifier: 0x185dd29e
Disk /dev/md127: 21,9 TiB, 24004285956096 bytes, 46883371008 sectors
cat /etc/mdadm/mdadm.conf
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
# Note, if no DEVICE line is present, then "DEVICE partitions" is assumed.
# To avoid the auto-assembly of RAID devices a pattern that CAN'T match is
# used if no RAID devices are configured.
DEVICE partitions
# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes
# automatically tag new arrays as belonging to the local system
HOMEHOST <system>
# definitions of existing MD arrays
ARRAY /dev/md127 metadata=1.2 name=openmediavault:raiddata UUID=25a95af2:bc96c52c:12e733a7:eda5b7db
# instruct the monitoring daemon where to send mail alerts
mdadm --detail --scan --verbose
ARRAY /dev/md127 level=raid5 num-devices=4 metadata=1.2 name=openmediavault:raiddata UUID=25a95af2:bc96c52c:12e733a7:eda5b7db
devices=/dev/sda,/dev/sdb,/dev/sdc
mdadm --detail /dev/md127
/dev/md127:
Version : 1.2
Creation Time : Wed Nov 28 21:03:55 2018
Raid Level : raid5
Array Size : 23441685504 (22355.73 GiB 24004.29 GB)
Used Dev Size : 7813895168 (7451.91 GiB 8001.43 GB)
Raid Devices : 4
Total Devices : 3
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Wed Feb 3 22:18:19 2021
State : clean, degraded
Active Devices : 3
Working Devices : 3
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 512K
Name : openmediavault:raiddata
UUID : 25a95af2:bc96c52c:12e733a7:eda5b7db
Events : 193740
Number Major Minor RaidDevice State
0 8 0 0 active sync /dev/sda
1 8 16 1 active sync /dev/sdb
2 8 32 2 active sync /dev/sdc
- 0 0 3 removed
