Samba share on software raid1


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# 1  
Old 08-30-2018
Samba share on software raid1

Hello!
i am having a ubuntu server with two empty disks and connected software raid1 to it.
I am having /mnt/raid folder which i created to mount it.

SO should i now make a share folder inside that or what? I ama bit confused when a raid is present.
# 2  
Old 08-30-2018
Assuming that you have completed the following steps:
You created a raid1
You partitioned the space that the raid1 provides like any other hard drive
You created a file system in that one of the partitions (xfs or ext4)

Now you can mount that filesystem somewhere:
You create an empty directory. It looks like you have /mnt/raid. In my opinion that would not be a desirable place /mnt is more for temporary mounting of filesystems. To provide a service like samba probably /srv/samba or /var/samba would be better.
After that you can share that space configuring the samba service.
# 3  
Old 08-30-2018
Thank you. I will put itto there but it is tnan on my host machine, i want that folder to be in one of the raid discs,thats the point.
Ubuntu is installed on seperate hard disk.
# 4  
Old 08-31-2018
There is no need to be confused because a RAID is present.

When you create a RAID1 (mirror) the pair of disks are afterwards managed as a single drive. The second disk becomes invisible.

Having a RAID1 has no bearing or influence on what the storage is used for, Samba or anything else.

The RAID1 is managed using a single device (/dev/dsk/<whatever>) for mounting/dismounting and will mount/dismount like any other single drive.

So once the RAID1 is formed, ignore the fact it's a RAID and treat it like any other single disk.

You can mount the space anywhere you like and use the storage like any other storage.
# 5  
Old 08-31-2018
thanks, i am a bit confused, but thanks for answer.
I had setup a share folder in /mnt/raid/ called test, and it is working via windows but when i deattach one drive it is lost, i cant access and i cant see it in linux also
Code:
cat /proc/mdstat
Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10]
md0 : active raid1 sdb[0] sdc[1]
      1953383488 blocks super 1.2 [2/2] [UU]
      bitmap: 0/15 pages [0KB], 65536KB chunk

Code:
 lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINT
NAME                    SIZE FSTYPE            TYPE  MOUNTPOINT
sda                   232.9G                   disk
└─sda1                232.9G LVM2_member       part
  ├─johna--vg-root     227G ext4              lvm   /
  └─johna--vg-swap_1   5.9G swap              lvm   [SWAP]
sdb                     1.8T linux_raid_member disk
└─md0                   1.8T ext4              raid1 /mnt/raid
sdc                     1.8T linux_raid_member disk
└─md0                   1.8T ext4              raid1 /mnt/raid

these are permission to folder

Code:
drwxr-xr-x 4 root root 4096 Aug 30 23:12 raid

Code:
drwxr-xr-x   3 root root  4096 Aug 30 12:39 mnt

Code:
drwxr-x--x 2 nobody nogroup  4096 Aug 31 08:54 test

smb.conf
Code:
[test]
path = /mnt/raid/test
valid users = johna myuser
read only = no
browsable = yes
guest ok = no
public= no
create mask = 0644
directory mask = 0755
force user = myuser

# 6  
Old 08-31-2018
Hmmmmm.......so both members of the RAID are shown as present and active....good.

So this RAID is on device /dev/md0

(After the RAID is create you should never address these disks as their original devices (/dev/dsk/... or whatever the format is on Ubuntu), only as /dev/md0.

What command are you using to mount the RAID where you want it? Are you specifying /dev/md0? If so, the system should know that it's a RAID mirror and if one disk fails, access to data on the surviving copy should remain.
# 7  
Old 08-31-2018
Quote:
Originally Posted by hicksd8
Hmmmmm.......so both members of the RAID are shown as present and active....good.

So this RAID is on device /dev/md0

(After the RAID is create you should never address these disks as their original devices (/dev/dsk/... or whatever the format is on Ubuntu), only as /dev/md0.

What command are you using to mount the RAID where you want it? Are you specifying /dev/md0? If so, the system should know that it's a RAID mirror and if one disk fails, access to data on the surviving copy should remain.
Code:
sudo mount /dev/md0 /mnt/raid

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