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Full Discussion: Samba share on software raid1
Operating Systems Linux Ubuntu Samba share on software raid1 Post 303022418 by tomislav91 on Friday 31st of August 2018 09:05:14 AM
Old 08-31-2018
Quote:
Originally Posted by hicksd8
Please answer the question asked by Peasant about did you run:

Code:
# sudo update-initramfs -u

Quote:
Originally Posted by Peasant
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.
You are right.
I added it to md0 manually, thats not a problem. Problem is why my data from /mnt/raid is not accessible and i cant read it when i unplug one of the 2 devices?
Thats strange from me, i cant figure out.
I added a folder in array in which i have mounted /dev/md0.

so i have a folder
/mnt/raid/test
and inside test some files.
I cant access it and all is fine. When I unplug disk when machine is running(or not, its the same result), i cant read from that test folder.
Input output error gives me.
But when I unplug another disk, it is working just fine.
Thats what bothers me.
Idea behind all this is to have a shared folder and prevention of data loss. If that disk fails i cannot access to that files. Thats the problem
Last edited by tomislav91; 08-31-2018 at 10:12 AM..
 

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LEARN ABOUT BSD

rxformat

RXFORMAT(8)						      System Manager's Manual						       RXFORMAT(8)

NAME

       rxformat - format floppy disks (2.11BSD)

SYNOPSIS

       rxformat special

DESCRIPTION

       The rxformat program formats a diskette in the specified drive associated with the special device special.  Special is normally /dev/rrx0?,
       for drive 0, or /dev/rrx1?, for drive 1, where ``?'' is either "a" or "b" to indicate single or double density access.  The ``raw''  device
       must  be  used.	 Single  density is compatible with the IBM 3740 standard (128 bytes/sector).  In double density, each sector contains 256
       bytes of data.

       Before formatting a diskette rxformat prompts for verification if standard input is a tty (this allows a user to cleanly abort  the  opera-
       tion; note that formatting a diskette will destroy any existing data).  Formatting is done by the hardware.  All sectors are zero-filled.

DIAGNOSTICS

       `No  such  device'  means that the drive is not ready, usually because no disk is in the drive or the drive door is open.  Other error mes-
       sages are selfexplanatory.

FILES

       /dev/rrx??

SEE ALSO

       rx(4)

AUTHOR

       Helge Skrivervik

BUGS

       A floppy may not be formatted if the header info on sector 1, track 0 has been damaged.	Hence, it is not possible to format  a	completely
       degaussed disk.	(This is actually a problem in the hardware.)

3rd Berkeley Distribution					 November 17, 1996						       RXFORMAT(8)
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