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Operating Systems Linux Ubuntu Samba share on software raid1 Post 303022424 by tomislav91 on Saturday 1st of September 2018 05:26:51 AM
Old 09-01-2018
Quote:
Originally Posted by Peasant
So, as far as i understood - one disk removed array works, other disk array does not work ?
Did you use fdisk or (g)parted on those disks at all to put raid type ?

As for samba and your actual requirement, that is layers above. One at the time Smilie
First you need your md device to be redundant and working after reboot.

What is the HW on that server, since you can unplug disks live ?
I would advise against that practice to test redundancy, if not specifically supported.

You see disk fail in various ways, but rarely unplugging the cable or hitting it with an axe.
Testing will prove difficult Smilie
But from my experience @ home, i had an RAID1 array, one disk died of natural causes (old age) and the mdadm system did the job.
This was some time ago tho..

Can you show output of :
Code:
fdisk -l /dev/sdb
fdisk -l /dev/sdc

Have you considered using ZFS on ubuntu ?
It should really ease up the process of creating a mirror and managing it in a long run.

Regards
Peasant
Here you are output
Code:
Disk /dev/sdb: 1.8 TiB, 2000398934016 bytes, 3907029168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
root@myuser:/mnt/md0# fdisk -l /dev/sdc
Disk /dev/sdc: 1.8 TiB, 2000398934016 bytes, 3907029168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Yeah,u arr right. When i pull out on of the disks i cant access folder test where i mounted md0.
My only concerne is to secure those data. Ok samba is on the layers above and its not very important to users to access it,but files must be replicated each other when i put some unix based live system to backup or save files if one disk fail.
I didnt try anything,only madm

------ Post updated 09-01-18 at 04:26 AM ------

My only concern if i left it like this, does the data be readble from a some linux usb live system or not. Nothing else Smilie
 

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rmf(1)							      General Commands Manual							    rmf(1)

NAME
rmf - remove folder (only available within the message handling system, mh) SYNOPSIS
rmf [+folder] [-help] [-[no]interactive] OPTIONS
Prints a list of the valid options to this command. Asks for confirmation before deleting a folder. By default, rmf deletes a folder and its messages without asking for confirmation. If you specify the -interactive option, rmf asks if you are sure before deleting the folder. You are advised to use this option, since when rmf deletes a folder its contents are lost irretrievably. DESCRIPTION
The rmf command removes all of the messages within the current folder, and then removes the folder itself. If there are any files within the folder which are not part of MH, they are not removed, and an error message is displayed. You can specify a folder other than the current folder by using the +folder argument. If you do not specify a folder, and rmf cannot find the current folder,rmf asks you whether you want to delete +inbox instead. If the current folder is removed, it makes +inbox current. Note that the rmf command irreversibly deletes messages that do not have other links, so use it with caution. If the folder being removed is a sub-folder, the parent folder becomes the new current folder, and rmf tells you that this has happened. This provides an easy mechanism for selecting a set of messages, operating on the list, then removing the list and returning to the current folder from which the list was extracted. Using rmf to delete a read-only folder deletes the private sequence and current message information from the file, without affecting the folder itself. If you have sub-folders within a folder, you must delete all the sub-folders before you can delete the folder itself. PROFILE COMPONENTS
Path: To determine the user's Mail directory EXAMPLES
This example shows how rmf asks for confirmation when the -interactive option is used: % rmf -interactive +test Remove folder "test"? y FILES
The user profile. SEE ALSO
rmm(1) rmf(1)
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