[CentOS] Re: hard drive failing in linux raid

[Scott Silva]

Alexey Loukianov spake the following on 11/15/2006 7:05 AM:
> Greetings, Scott.
> 
> 8 ?????? 2006 ?., 19:40:44 you have wrote:
> 
>> Adriano Frare spake the following on 11/7/2006 5:51 PM:
>>> I tested RAID 1 with differents size hard disk , it is work.
>>>
>>> You need first, execute command sfdisk -l /dev/hd_GOOD > partitions.txt
>>> Second execute command sfdisk /dev/hd_NEWDISK < partitons.txt.
>>>
>>> After recover process normal RAID recover.
>>>
>> Or shorten it with a pipe;
>> sfdisk -l /dev/hd_GOOD | sfdisk /dev/hd_NEWDISK
> 
> To be totally correct, use -uS, as when info is displayed in block
> units, some rounding of the size might occur.
> 
> Compare this:
> 
> [root at runchik ~]# sfdisk -l /dev/sda
> 
> Disk /dev/sda: 8923 cylinders, 255 heads, 63 sectors/track
> Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
> 
>    Device Boot Start     End   #cyls    #blocks   Id  System
> /dev/sda1   *      0+     12      13-    104391   83  Linux
> /dev/sda2         13     143     131    1052257+  82  Linux swap
> /dev/sda3        144    8922    8779   70517317+  8e  Linux LVM
> /dev/sda4          0       -       0          0    0  Empty
> 
> With this:
> 
> [root at runchik ~]# sfdisk -uS -l /dev/sda
> 
> Disk /dev/sda: 8923 cylinders, 255 heads, 63 sectors/track
> Units = sectors of 512 bytes, counting from 0
> 
>    Device Boot    Start       End   #sectors  Id  System
> /dev/sda1   *        63    208844     208782  83  Linux
> /dev/sda2        208845   2313359    2104515  82  Linux swap
> /dev/sda3       2313360 143347994  141034635  8e  Linux LVM
> /dev/sda4             0         -          0   0  Empty
> 
I actually forgot about this post, but I meant to post
sfdisk -d /dev/hd_GOOD | sfdisk /dev/hd_NEWDISK
to get the partition table dump that sfdisk is looking for.

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