Hi,
i got an EX2 Ultra from a friend. The problem is: After he restored to default the system settings, the 2 Harddrives are not shown up anymore in the User Interface/Dashboard.
He was not sure, which Raid array was installed. So i tried to get some more informations via ssh.
Here are some results.
**root@MyCloudEX2Ultra ~ # blkid**
/dev/ubi0_0: UUID="a3ab8d56-1985-41b7-8676-c719a75374a7" TYPE="ubifs"
/dev/ram0: UUID="676a5944-4b51-4571-8284-2fd121e13c35" TYPE="ext2"
/dev/loop0: TYPE="squashfs"
/dev/mtdblock5: UUID="1192699104" TYPE="ubi"
/dev/mtdblock6: UUID="869884640" TYPE="ubi"
/dev/mtdblock7: UUID="2034023751" TYPE="ubi"
/dev/sda1: UUID="5a62c6c3-d37c-5be8-f6f3-21bf3531d633" UUID_SUB="926e4cc2-07ac-4cd7-1f9e-fcfb5568a032" LABEL="MyCloudEX2Ultra:0" TYPE="linux_raid_member" PARTLABEL="Linux swap" PARTUUID="eb834595-7dee-48ed-b90b-2a7066441947"
/dev/sda4: UUID="1cc34dcd-3a79-402d-be0f-d36360a5387f" TYPE="ext4" PARTLABEL="Microsoft basic data" PARTUUID="56fb782c-4a7a-4300-93a2-d088f7e71240"
/dev/md0p1: UUID="0df4121a-3b64-4d0b-b8de-d356a1d6f95c" TYPE="ext4" PARTLABEL="Linux filesystem" PARTUUID="53c0e7c6-b871-4e15-b49a-3ef10d610395"
/dev/sdb2: UUID="4cf6aa7c-308d-e8bf-b184-b8a9eae2f0a4" UUID_SUB="6d88bbc0-14e4-5366-be5b-e41dde0ccd76" LABEL="1" TYPE="linux_raid_member" PARTLABEL="Microsoft basic data" PARTUUID="73c0b179-5114-4374-9eba-2b0ff30ee68e"
/dev/ubi2_0: UUID="345a325c-aa67-4e22-a997-549f5fe95590" TYPE="ubifs"
/dev/ubi1_0: UUID="9d44d291-e6cd-44f2-ba2a-445170f5b8fb" TYPE="ubifs"
/dev/sda2: UUID="4cf6aa7c-308d-e8bf-b184-b8a9eae2f0a4" UUID_SUB="e39a9a88-6f80-7a4e-2258-8d6348b03707" LABEL="1" TYPE="linux_raid_member" PARTLABEL="Microsoft basic data" PARTUUID="3635708e-6134-4ec4-a235-4a54481d8087"
/dev/sda3: PARTLABEL="Microsoft basic data" PARTUUID="804662fa-cbfb-4bab-867d-44fcc8cdd160"
/dev/md0: PTUUID="3fa332fb-0d4b-406e-a320-b0423f40183c" PTTYPE="gpt"
/dev/md0p2: UUID="a586c184-1ae7-4310-9a16-f798124b00e7" TYPE="swap" PARTLABEL="Linux filesystem" PARTUUID="b06447a3-0839-4cf6-a70e-dde58e7922d6"
/dev/md127: UUID="166b70c2-65c4-4602-b154-d14036796c8b" TYPE="ext4"
/dev/sdb1: UUID="5a62c6c3-d37c-5be8-f6f3-21bf3531d633" UUID_SUB="089f2f89-53dc-dbad-9f33-4b922e7fe08a" LABEL="MyCloudEX2Ultra:0" TYPE="linux_raid_member" PARTLABEL="Linux swap" PARTUUID="5b945465-a9ac-4a9e-ac5f-b34ec2576e15"
/dev/sdb3: PARTLABEL="Microsoft basic data" PARTUUID="e0e57c53-cff5-4820-9bc6-32d4eed97e04"
/dev/sdb4: UUID="16f8ffd2-bb63-45cc-b7cb-74a716273dad" TYPE="ext4" PARTLABEL="Microsoft basic data" PARTUUID="04a817d4-f152-4161-abb7-a621fe638179"
**root@MyCloudEX2Ultra ~ # mdadm --examine /dev/sda1**
/dev/sda1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 5a62c6c3:d37c5be8:f6f321bf:3531d633
Name : MyCloudEX2Ultra:0 (local to host MyCloudEX2Ultra)
Creation Time : Mon Jun 20 10:31:32 2022
Raid Level : raid1
Raid Devices : 2
Avail Dev Size : 4188160 (2045.00 MiB 2144.34 MB)
Array Size : 2094080 (2045.00 MiB 2144.34 MB)
Data Offset : 6144 sectors
Super Offset : 8 sectors
Unused Space : before=6064 sectors, after=0 sectors
State : clean
Device UUID : 926e4cc2:07ac4cd7:1f9efcfb:5568a032
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Jun 20 11:33:11 2022
Bad Block Log : 512 entries available at offset 16 sectors
Checksum : 2ec0601e - correct
Events : 26
Device Role : Active device 0
Array State : AA ('A' == active, '.' == missing, 'R' == replacing)
**root@MyCloudEX2Ultra ~ # mdadm --examine /dev/sdb1**
/dev/sdb1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 5a62c6c3:d37c5be8:f6f321bf:3531d633
Name : MyCloudEX2Ultra:0 (local to host MyCloudEX2Ultra)
Creation Time : Mon Jun 20 10:31:32 2022
Raid Level : raid1
Raid Devices : 2
Avail Dev Size : 4188160 (2045.00 MiB 2144.34 MB)
Array Size : 2094080 (2045.00 MiB 2144.34 MB)
Data Offset : 6144 sectors
Super Offset : 8 sectors
Unused Space : before=6064 sectors, after=0 sectors
State : clean
Device UUID : 089f2f89:53dcdbad:9f334b92:2e7fe08a
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Jun 20 11:33:11 2022
Bad Block Log : 512 entries available at offset 16 sectors
Checksum : bac16d3a - correct
Events : 26
Device Role : Active device 1
Array State : AA ('A' == active, '.' == missing, 'R' == replacing)
**root@MyCloudEX2Ultra ~ # mdadm --assemble --scan**
mdadm: Found some drive for an array that is already active: /dev/md/1_0
mdadm: giving up.
mdadm: No arrays found in config file or automatically
With my Linux machine, i had no problems to combine the array and to make a backup of the files on it.
I think, something is missing, that the array and the harddrives will not shown on the dashboard.
The Raid health says: No configured volumes
Thanks for any help
Mosconi
