Help with ES v3 Raid1 (Mirror)

[Tom Callahan]

Ahhh, I missed the sequence you were using. You must raid the two
devices, and then mkfs.ext3 /dev/md0

Not mkfs each and then mirror....

Thanks,

Tom Callahan
TESSCO Technologies
Desk: (410)-229-1361
Cell: (443)-506-6216
Email: callahant at tessco.com

A real engineer only resorts to documentation when the keyboard dents on the forehead get too noticeable.



Marc Leveille wrote:

>I used fdisk and changed the labels of sdb and sdc to Linux Raid
>Autodetect (fd). Makefs of ext3 on both and recreated /dev/md0. and it
>still fails saying "wrong fs type or bad superblock. I will now try ext2
>jus for a try.
>
>thanks
>
>Marc
>
>On Fri, 2006-01-27 at 09:32 -0500, Tom Callahan wrote:
>  
>
>>Sorry, partition "types" , not labels.
>>
>>Thanks,
>>
>>Tom Callahan
>>TESSCO Technologies
>>Desk: (410)-229-1361
>>Cell: (443)-506-6216
>>Email: callahant at tessco.com
>>
>>A real engineer only resorts to documentation when the keyboard dents on the forehead get too noticeable.
>>
>>
>>
>>Tom Callahan wrote:
>>
>>    
>>
>>>Make sure the partition labels in fdisk are set to "Linux Raid Autodetect"
>>>
>>>Thanks,
>>>
>>>Tom Callahan
>>>TESSCO Technologies
>>>Desk: (410)-229-1361
>>>Cell: (443)-506-6216
>>>Email: callahant at tessco.com
>>>
>>>A real engineer only resorts to documentation when the keyboard dents on the forehead get too noticeable.
>>>
>>>
>>>
>>>baran.yurdagul at turkcell.com.tr wrote:
>>>
>>> 
>>>
>>>      
>>>
>>>>Can you make some full fsck to filesystem ?
>>>>
>>>>-----Original Message-----
>>>>From: redhat-list-bounces at redhat.com
>>>>[mailto:redhat-list-bounces at redhat.com] On Behalf Of Marc Leveille
>>>>Sent: Friday, January 27, 2006 3:50 PM
>>>>To: General Red Hat Linux discussion list
>>>>Subject: RE: Help with ES v3 Raid1 (Mirror)
>>>>
>>>>Hi, I used ext3. I will try again today using ext2 as I have no other
>>>>idea. I only have experience with hardware raid with Windows.
>>>>
>>>>thanks
>>>>
>>>>Marc
>>>>
>>>>On Fri, 2006-01-27 at 08:09 +0200, baran.yurdagul at turkcell.com.tr wrote:
>>>>
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>>>Which option did u use while creating the filesystem, ext2 or ext3 via
>>>>>mkfs command ?
>>>>>
>>>>>-----Original Message-----
>>>>>From: redhat-list-bounces at redhat.com
>>>>>[mailto:redhat-list-bounces at redhat.com] On Behalf Of Marc Leveille
>>>>>Sent: Thursday, January 26, 2006 9:52 PM
>>>>>To: redhat-list at redhat.com
>>>>>Subject: Help with ES v3 Raid1 (Mirror)
>>>>>
>>>>>Hi, I'm trying to setup a Raid1 mirror between 2 hard drives. I have
>>>>>  
>>>>>
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>the
>>>>
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>>>following.
>>>>>
>>>>>1- SDA 36gig System disk
>>>>>2- SDB 36gig blank
>>>>>3- SDC 36gig blank
>>>>>
>>>>>I'm trying to Mirror SDB to SDC by doing the following.
>>>>>
>>>>>1- By using FDisk I created SDB1 and SDC1 on each drive. 
>>>>>2- I then makefs ext3 for each partition.
>>>>>3- Then I used mkadm --create /dev/md0 --level=1
>>>>>--raid-devices=2 /dev/sdb1 /dev/sdc1
>>>>>
>>>>>I ran watch cat /proc/mdstat until the process was completed.
>>>>>4- when it was complete I tested the mount using mount -t
>>>>>ext3 /dev/md0 /home/apps and it mounted and I was able to open it.
>>>>>5- I then edited fstab with /dev/md0 /home/apps ext3 defaults 1 2 and
>>>>>rebooted.
>>>>>6- I now get the following error at boot. 
>>>>>
>>>>>FSCK.ext3 /dev/mdo the superblock could not be read or does not
>>>>>  
>>>>>
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>describe
>>>>
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>>>a correct EXT2 Filesystem.......bla bla and asks to run E2FSCK -B 8193
>>>>>
>>>>>7- I used Vi and comented out the mount in fstab and re-booted. I
>>>>>  
>>>>>
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>tried
>>>>
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>>>to manually mount the drive the same way as (Item #4) and it now fails
>>>>>Mount: Wrong FS Type.
>>>>>
>>>>>Any ideas as to what I need to do. Sould I use ext3 ?
>>>>>
>>>>>thanks 
>>>>>
>>>>>Marc
>>>>>
>>>>>-- 
>>>>>redhat-list mailing list
>>>>>unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
>>>>>https://www.redhat.com/mailman/listinfo/redhat-list
>>>>>
>>>>>
>>>>>
>>>>>  
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>>>>>     
>>>>>
>>>>>          
>>>>>
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