Re: problème pour monter un disque en externe

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Autor: anne.guilde@free.fr
Data:  
A: Dominique Fournier, guilde
Assumpte: Re: problème pour monter un disque en externe
Le 09/02/2016 20:19, Dominique Fournier a écrit :
> Bonjour
>
> Regarde le /proc/mdstat pour voir ce qui est réellement vu par le raid
> soft, ainsi que les logs (du kernel probablement).
>
> Ensuite, on verra le LVM. Mais je ne pense pas qu'on aille très loin.
>


# mdadm --assemble --scan
# cat /proc/mdstat
Personalities :
unused devices: <none>

rien trouvé dans le log de kernel de probant

Feb  9 21:17:29 anne kernel: [ 2814.552363] usb 1-3: new high-speed USB 
device number 3 using ehci-pci
Feb  9 21:17:29 anne kernel: [ 2814.687119] usb 1-3: New USB device 
found, idVendor=152d, idProduct=2338
Feb  9 21:17:29 anne kernel: [ 2814.687130] usb 1-3: New USB device 
strings: Mfr=1, Product=2, SerialNumber=5
Feb  9 21:17:29 anne kernel: [ 2814.687135] usb 1-3: Product: USB to 
ATA/ATAPI bridge
Feb  9 21:17:29 anne kernel: [ 2814.687139] usb 1-3: Manufacturer: JMicron
Feb  9 21:17:29 anne kernel: [ 2814.687142] usb 1-3: SerialNumber: 
C235D523BA52
Feb  9 21:17:29 anne kernel: [ 2814.690107] usb-storage 1-3:1.0: USB 
Mass Storage device detected
Feb  9 21:17:29 anne kernel: [ 2814.690542] scsi2 : usb-storage 1-3:1.0
Feb  9 21:17:30 anne kernel: [ 2815.689689] scsi 2:0:0:0: Direct-Access 
     HITACHI_ DK23BA-20             PQ: 0 ANSI: 2 CCS
Feb  9 21:17:30 anne kernel: [ 2815.692154] sd 2:0:0:0: Attached scsi 
generic sg1 type 0
Feb  9 21:17:30 anne kernel: [ 2815.698373] sd 2:0:0:0: [sdb] 39070080 
512-byte logical blocks: (20.0 GB/18.6 GiB)
Feb  9 21:17:30 anne kernel: [ 2815.700042] sd 2:0:0:0: [sdb] Write 
Protect is off
Feb  9 21:17:30 anne kernel: [ 2815.700049] sd 2:0:0:0: [sdb] Mode 
Sense: 28 00 00 00
Feb  9 21:17:30 anne kernel: [ 2815.703271] sd 2:0:0:0: [sdb] No Caching 
mode page found
Feb  9 21:17:30 anne kernel: [ 2815.703285] sd 2:0:0:0: [sdb] Assuming 
drive cache: write through
Feb  9 21:17:31 anne kernel: [ 2816.113574]  sdb: sdb1 sdb2
Feb  9 21:17:31 anne kernel: [ 2816.120532] sd 2:0:0:0: [sdb] Attached 
SCSI disk
Feb  9 21:17:31 anne kernel: [ 2816.249420] usb 1-3: reset high-speed 
USB device number 3 using ehci-pci



# ls -al /dev/md*
total 0
drwxr-xr-x 2 root root 40 févr. 9 20:30 .
drwxr-xr-x 20 root root 3480 févr. 9 21:17 ..

Pour monter un disque en raid, on fait comment?

mdadm --assemble --scan

>>
>> # sfdisk -l
>> ...
>> Disk /dev/sdb: 2584 cylinders, 240 heads, 63 sectors/track
>> Units: cylinders of 7741440 bytes, blocks of 1024 bytes, counting from 0
>>
>>     Device Boot Start     End   #cyls    #blocks   Id  System
>> /dev/sdb1   *      0+     13      14-    105808+  fd  Linux raid
>> autodetect
>> /dev/sdb2         14    2583    2570   19429200   fd  Linux raid
>> autodetect
>> /dev/sdb3          0       -       0          0    0  Empty
>> /dev/sdb4          0       -       0          0    0  Empty

>>
>>
>> # mdadm --assemble --scan
>> # pvscan
>>    No matching physical volumes found

>>