Unable to mount a clone file system (NetApp)

 
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Operating Systems Linux Red Hat Unable to mount a clone file system (NetApp)
# 1  
Old 12-07-2016
Unable to mount a clone file system (NetApp)

Hi

I have the following difficulty:
the NetApp admin has clone one file system from one red hatserver and presented this cloned LUN into another redhat server.
I can see the LUN as:

Code:
 fdisk -l

Disk /dev/sda: 64.4 GB, 64424509440 bytes
255 heads, 63 sectors/track, 7832 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0007be5f

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          64      512000   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              64        7833    62401536   8e  Linux LVM

Disk /dev/mapper/vg_simregebackup-lv_root: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/mapper/vg_simregebackup-lv_swap: 4160 MB, 4160749568 bytes
255 heads, 63 sectors/track, 505 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/mapper/vg_simregebackup-lv_home: 6048 MB, 6048186368 bytes
255 heads, 63 sectors/track, 735 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sdc: 1073 MB, 1073741824 bytes
139 heads, 8 sectors/track, 1885 cylinders
Units = cylinders of 1112 * 512 = 569344 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 4096 bytes / 65536 bytes
Disk identifier: 0x000d6bb9

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               2        1886     1047552   8e  Linux LVM
[root@simregebackup /]#

So I beleive is /dev/sdcbecause he told me the LUN has 1Gb

but when I try
Code:
 mount -t ext3 /dev/sdc /teste
mount: wrong fs type, bad option, bad superblock on /dev/sdc,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

Please can you assist, as I am not familiar with fdisk utility



Moderator's Comments:
Mod Comment Please use CODE tags as required by forum rules!

Last edited by RudiC; 12-07-2016 at 06:18 AM.. Reason: Added CODE tags.
# 2  
Old 12-07-2016
How is the disk /dev/sdc used on the source side? It's labelled as Linux LVM so I'm guessing it is allocated to a volume group, which may then be one or more logical volumes formatted as filesystems or just raw space.

You target system needs to know what to do with it, but without destroying the content.

I don't have a test server I could play with like this, so I'm guessing a bit but somehow you need to build a volume group to include this disk without it rewriting the first few blocks else you would lose the LVMs it contains. Perhaps vgimport will help you here, but I've not used it before.


I hope that this helps,
Robin
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