Missing Disk-B???

[Watchman1974]

Hi

is it the new disk or the former ?

Looks like sdb is a dead drive. Just ordered a replacement

Currently your issue is not not on the fs level but partition table. Please to post

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gdisk -l /dev/sdb

GPT fdisk (gdisk) version 0.8.5

Warning! Read error 5; strange behavior now likely!
Warning! Read error 5; strange behavior now likely!
Partition table scan:
MBR: not present
BSD: not present
APM: not present
GPT: not present

Creating new GPT entries.
Disk /dev/sdb: 8089950 sectors, 3.9 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 04802DE9-DD83-472A-A84E-57FDDC1FD5CB
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 8089916
Partitions will be aligned on 2048-sector boundaries
Total free space is 8089883 sectors (3.9 GiB)

Number Start (sector) End (sector) Size Code Name


This is on the new drive.

[Jocko]

Hummm it is not good...

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Warning! Read error 5; strange behavior now likely!
Disk /dev/sdb: 8089950 sectors, 3.9 GiB

So gdisk claims it is a 3,9GB disk !!!! and I am sure it is not the case...

So try plugging the drive into another machine and see if you have the same value. You can also use the manufacturer's tools to check or repair the disk (you should find them on the NET). If it is a new disk, you can use its warranty to get a new one

[Watchman1974]

Hummm it is not good...

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Warning! Read error 5; strange behavior now likely!
Disk /dev/sdb: 8089950 sectors, 3.9 GiB

So gdisk claims it is a 3,9GB disk !!!! and I am sure it is not the case...

So try plugging the drive into another machine and see if you have the same value. You can also use the manufacturer's tools to check or repair the disk (you should find them on the NET). If it is a new disk, you can use its warranty to get a new one

So now I've tried three diff drives...all the same model. All of them show as 3.9Gb Oddness.

[fvdw]

Thats perculiar, very unlikely that all are bad, maybe we are facing a sata port failure here or bad cable/connector.
Did you try the disks in another pc or usb->sata interface?

[Watchman1974]

Thats perculiar, very unlikely that all are bad, maybe we are facing a sata port failure here or bad cable/connector.
Did you try the disks in another pc or usb->sata interface?

Oddly enough when I tried the drives in another PC the PC would crash. As in the second you plug it in nothing would work. No errors, no blue screen, just nothing would work. Mouse wouldn't move, no HD activity light nothing.

[fvdw]

If I understand correctly, you are saying none if these disk work in your pc?
Where do these disks come from are they new are are they used in another device?

[Watchman1974]

If I understand correctly, you are saying none if these disk work in your pc?
Where do these disks come from are they new are are they used in another device?

I finally found a disk which works. I was also able to initialize it successfully. Is there any way to add this new disk to the existing Raid5 or do I have to start from scratch and recreate the raid?
https://i.imgur.com/TH3AvT9.jpg

[Jocko]

Hi

What do you want to do ?

Currently it seems you have a raid5 with only two disks (C and D). So that means currently it is a degraded raid (no redundancy) and I assume you want to keep out Disk-E (size issue).

So do you want to restore only redundancy (so add disk-B) and keep your raid with 3 disks or do you want to add also disk-A so that you get a raid with 4 disks.

On the first case, you have to open the edit volume menu (click on the link RAID-5 from the main disk setup menu). Then the volume menu should list disk-B so that you may include it

[Watchman1974]

Hi

What do you want to do ?

Currently it seems you have a raid5 with only two disks (C and D). So that means currently it is a degraded raid (no redundancy) and I assume you want to keep out Disk-E (size issue).

So do you want to restore only redundancy (so add disk-B) and keep your raid with 3 disks or do you want to add also disk-A so that you get a raid with 4 disks.

On the first case, you have to open the edit volume menu (click on the link RAID-5 from the main disk setup menu). Then the volume menu should list disk-B so that you may include it

Originally all disks were part of the raid5 except for the 3tb one. I'd like to have that restored

[Jocko]

Hi

Originally all disks were part of the raid5 except for the 3tb one

So there is an issue as only two disks are detected like raid members (C and D)

So need to deepen their status. Please to post

Code: Select all

cat /proc/mdstat
mdadm --examine /dev/sd[abcde]8