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Thread: Re: Directories swapping contents!?!?!?




Re: Directories swapping contents!?!?!?
user name
2007-06-27 00:56:59
The drives are on a PCI-bus dual IDE controller, a PDC20269. 

The salient /etc/mdadm.conf lines are:

DEVICE /dev/hd[eg]1
ARRAY /dev/md0 level=raid1 num-devices=2 UUID=35e5b25c:1052d6a0:6ce09651:4f073886

df -k output:

Filesystem        ;   1K-blocks    ;  Used Available Use% Mounted on
/dev/hda3  ;           ; 8008132   1577980   6430152  20% /
udev ;           ;        126620      2516   ; 124104   2% /dev
/dev/hda4  ;           69607468  12450124  57157344  18% /aux
/dev/md0    ;         157566460 108740736  40821748  73% /mnt/md0
shm   ;           ;       126620         0    126620   0% /dev/shm
/dev/cdrom           ;   703330    703330         0 100% /mnt/cdrom

fdisk -l output (hde and hdg are the two 160GB drives):

Disk /dev/hda: 80.0 GB, 80060424192 bytes
255 heads, 63 sectors/track, 9733 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot   ;   Start ;        End     ; Blocks   Id  System
/dev/hda1  ; *         ;  1         ;  7       56196 ;  83  Linux
/dev/hda2  ;           ;  8         ; 70      506047+  82  Linux swap / Solaris
/dev/hda3  ;           ; 71       ; 1067   ;  8008402+  83  Linux
/dev/hda4  ;          1068   ;     9733   ; 69609645   83  Linux

Disk /dev/hde: 163.9 GB, 163928604672 bytes
255 heads, 63 sectors/track, 19929 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot   ;   Start ;        End     ; Blocks   Id  System
/dev/hde1  ;           ;  1       19929 ;  160079661   83  Linux

Disk /dev/hdg: 163.9 GB, 163928604672 bytes
255 heads, 63 sectors/track, 19929 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot   ;   Start ;        End     ; Blocks   Id  System
/dev/hdg1  ;           ;  1       19929 ;  160079661   83  Linux

Disk /dev/md0: 163.9 GB, 163921461248 bytes
2 heads, 4 sectors/track, 40019888 cylinders
Units = cylinders of 8 * 512 = 4096 bytes

Disk /dev/md0 doesn't contain a valid partition table

Jim Popovitch wrote:
localhost" type="cite">
On Wed, 2007-06-27 at 00:47 -0400, Jeff Hubbs wrote:
  
Upon closer inspection, it appears as though within the two directories, 
the directories underneath them have "shuffled" a bit - it's not a total 
swap.  Some from one now appear in the other and vice versa.
    

Can we get some more details about this...


	controller type
	md0 config
	df -k
	fdisk -l

Thx,

-Jim P.


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Re: Directories swapping contents!?!?!?
user name
2007-06-27 07:13:29
Certainly an interesting problem.  Without attaching
significance, I
noted that the partition types on the RAID drives were
"83" not "fd". 
People on the list are correct that causes could range from
PEBKAC to
file system meta-data issues.   It would be interesting to
know how long
it took to recognize this problem. Did the
directories/content switch at
once or "bleed" over a period of time? 


K

Jeff Hubbs wrote:
> The drives are on a PCI-bus dual IDE controller, a
PDC20269. 
>
> The salient /etc/mdadm.conf lines are:
>
>     DEVICE /dev/hd[eg]1
>     ARRAY /dev/md0 level=raid1 num-devices=2
>     UUID=35e5b25c:1052d6a0:6ce09651:4f073886
>
>
> df -k output:
>
>     Filesystem           1K-blocks      Used Available
Use% Mounted on
>     /dev/hda3              8008132   1577980   6430152 
20% /
>     udev                    126620      2516    124104 
 2% /dev
>     /dev/hda4             69607468  12450124  57157344 
18% /aux
>     /dev/md0             157566460 108740736  40821748 
73% /mnt/md0
>     shm                     126620         0    126620 
 0% /dev/shm
>     /dev/cdrom              703330    703330         0
100% /mnt/cdrom
>
>
> fdisk -l output (hde and hdg are the two 160GB
drives):
>
>     Disk /dev/hda: 80.0 GB, 80060424192 bytes
>     255 heads, 63 sectors/track, 9733 cylinders
>     Units = cylinders of 16065 * 512 = 8225280 bytes
>
>        Device Boot      Start         End      Blocks  
Id  System
>     /dev/hda1   *           1           7       56196  
83  Linux
>     /dev/hda2               8          70      506047+ 
82  Linux swap
>     / Solaris
>     /dev/hda3              71        1067     8008402+ 
83  Linux
>     /dev/hda4            1068        9733    69609645  
83  Linux
>
>     Disk /dev/hde: 163.9 GB, 163928604672 bytes
>     255 heads, 63 sectors/track, 19929 cylinders
>     Units = cylinders of 16065 * 512 = 8225280 bytes
>
>        Device Boot      Start         End      Blocks  
Id  System
>     /dev/hde1               1       19929   160079661  
83  Linux
>
>     Disk /dev/hdg: 163.9 GB, 163928604672 bytes
>     255 heads, 63 sectors/track, 19929 cylinders
>     Units = cylinders of 16065 * 512 = 8225280 bytes
>
>        Device Boot      Start         End      Blocks  
Id  System
>     /dev/hdg1               1       19929   160079661  
83  Linux
>
>     Disk /dev/md0: 163.9 GB, 163921461248 bytes
>     2 heads, 4 sectors/track, 40019888 cylinders
>     Units = cylinders of 8 * 512 = 4096 bytes
>
>     Disk /dev/md0 doesn't contain a valid partition
table
>
>
> Jim Popovitch wrote:
>> On Wed, 2007-06-27 at 00:47 -0400, Jeff Hubbs
wrote:
>>   
>>> Upon closer inspection, it appears as though
within the two directories, 
>>> the directories underneath them have
"shuffled" a bit - it's not a total 
>>> swap.  Some from one now appear in the other
and vice versa.
>>>     
>>
>> Can we get some more details about this...
>>
>> 	controller type
>> 	md0 config
>> 	df -k
>> 	fdisk -l
>>
>> Thx,
>>
>> -Jim P.
>>
>>
>> _______________________________________________
>> Ale mailing list
>> Aleale.org
>> http://www.al
e.org/mailman/listinfo/ale
>>
>>   
>
>
------------------------------------------------------------
------------
>
> _______________________________________________
> Ale mailing list
> Aleale.org
> http://www.al
e.org/mailman/listinfo/ale

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e.org/mailman/listinfo/ale

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