[ale] Directories swapping contents!?!?!?

W. Keith Miller smeadspam100 at speedfactory.net
Wed Jun 27 08:13:29 EDT 2007


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.
>>
>>
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>>
>>   
>
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