Today (Saturday) We will make some minor tuning adjustments to MySQL.

You may experience 2 up to 10 seconds "glitch time" when we restart MySQL. We expect to make these adjustments around 1AM Eastern Daylight Saving Time (EDT) US.


Samba share on software raid1


Login or Register to Reply

 
Thread Tools Search this Thread
# 15  
what also i notice, when deattach disk LIVE when system is running, disk disappear from array after restart, it cant be access.
It is present like /dev/sdb but not in raid...
# 16  
If you are saying /dev/sdb is not in RAID after a reboot(?) then I would ask, do you have the /dev/md0 mount in /etc/fstab?
# 17  
Can you tell me what happens if you follow the following tutorial :
How To Create RAID Arrays with mdadm on Ubuntu 16.04 | DigitalOcean

All the setup, with carefull reading and understanding.
Of course, you are creating RAID1 so you can ignore other possible configurations.

Are you sure the disk or disks initialized with mdadm are not mentioned in /etc/fstab. They should not be there, but only meta(MD) device(s).

Also, did you execute as root at the end of operation :
Code:
sudo update-initramfs -u

Hope that helps
Regards
Peasant.
This User Gave Thanks to Peasant For This Post:
# 18  
This is exactly tutorial i was follow.
this is fstab last line
Code:
/dev/md0 /mnt/raid/ ext4 defaults,nofail,discard 0 0

This is now lsblk
Code:
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

when remove one disk, it is good, i can access my folder via windows, but when get another out, just goes from md0
Code:
sdb                     1.8T linux_raid_member disk

and sdc is a part of md0
# 19  
Please answer the question asked by Peasant about did you run:

Code:
# sudo update-initramfs -u

# 20  
Quote:
Originally Posted by hicksd8
Please answer the question asked by Peasant about did you run:

Code:
# sudo update-initramfs -u

sorry i don't write it.
Yeah, ofcourse.
this is output
Code:
sudo update-initramfs -u
update-initramfs: Generating /boot/initrd.img-4.10.0-19-generic

i have notices that in conf file array is /dev/md/0

Code:
ARRAY /dev/md/0 metadata=1.2 name=johna:0 UUID=bd34d949:34a3999d:949d6038:a871e1c1

------ Post updated at 06:41 AM ------

i also cant access to my data after deattach one hard drive.

------ Post updated at 06:43 AM ------

THis is output of mdstat
Code:
root@myuser:/mnt/raid/test# cat /proc/mdstat
Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10]
md0 : active raid1 sdc[1] sdb[0]
      1953383488 blocks super 1.2 [2/2] [UU]
      bitmap: 0/15 pages [0KB], 65536KB chunk

unused devices: <none>

------ Post updated at 07:23 AM ------

i now do it like this
Link
i delete array and added like in example. No errors found.
I can see that it is monuted
Code:
Filesystem                   Size  Used Avail Use% Mounted on
/dev/mapper/johnas--vg-root  223G  1.4G  210G   1% /
/dev/md0                     1.8T  898M  1.7T   1% /mnt/md0

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

I am now waiting to sync and try again to deattach disks and try to copy for example to /home/johnas/something, to see if it is good to go or not.
Just one question.
If I deattach one disk, and restart, it should be also in md0 because i added it in fstab.
# 21  
Lets just make this clear for the sake of argument.

So, you create a /dev/md0 from /dev/sdc /dev/sdb disks.
You mount it via mount command and add into /etc/fstab.

After reboot (all disks are inside), everything works as expected (mounted and healty).
You poweroff the box, and remove one of the disks from array.
Booting up everything is fine, except lacking one disk you removed.

After you poweroff and replug the drive, power on, there should be still one disk in the md setup. The one you didn't touch should still be part of md device.
Is this correct ?

Point being, if you unplug the drive, that drive is not considired part of array anymore.
When you plug it back, it will not magically rebuild, this has to be done by hand.
And of course, if you plug the other one out, and leave the first one in, you will not have a working md array.

Regards
Peasant.
Login or Register to Reply

|
Thread Tools Search this Thread
Search this Thread:
Advanced Search

More UNIX and Linux Forum Topics You Might Find Helpful
Samba share - currently not working
psychocandy
Long running samba share. Never have any problems, Suddenly started asking windows users for password - which doesnt work. Tried to manually reset smb password and manually map - still wrong password. Restart samba?... Red Hat
2
Red Hat
samba issue: one samba share without password prompting and the others with.
ideal2545
Hi All, I've been trying to configure samba on Solaris 10 to allow me to have one share that is open and writable to all users and have the rest of my shares password protected by a generic account. If I set my security to user, my secured shares work just fine and prompt accordingly, but when...... Solaris
0
Solaris
Samba share script
funyotros
Hi everyone! I'm trying to run a script when a folder is shared and when it stop being shared. Is there something like .start_share or .stop_share scripts in Samba where I could run some commands?:confused: edit: maybe with a wrapper in smbmount but I share folders via nautilus. Any ideas?... Linux
0
Linux
Facing problem in Samba share
manoj.solaris
Hi, I am facing problem while accessing samba share on Linux 5.1 from windows, though I have done the same configuration on Linux 4 (Update 2), on Red Hat 4.0 it is working but while on Linux 5.1 these configuration are not working, I have disabled the firewall also. Kindly suggest me...... Linux
1
Linux
How can i set up Software disk mirroring(Raid1) in SCO 5.0.5 with two SCSI harddisk ?
coralsea
thank u very much,... UNIX for Dummies Questions & Answers
1
UNIX for Dummies Questions & Answers

Featured Tech Videos