software raid question 2

[Lonni J Friedman]

Is the array mounted?
Is the array alive?

What's the output from "cat /proc/mdstat" when the problem is present?

On Fri, Aug 8, 2008 at 11:10 AM, vu pham <vu at sivell.com> wrote:
> Raid Gurus:
>
> I get into this problem twice, solved one this mornining, but still playing
> around with this one.
>
> When I create an raid device, mdadm complains one or more partitions "device
> or resource busy".
>
> [root at wks-178 ~]# mdadm --create /dev/md0 --level=5 --raid-devices=3
> /dev/sdb1 /dev/sdc1 /dev/sdd1
> mdadm: Cannot open /dev/sdb1: Device or resource busy
> mdadm: /dev/sdc1 appears to contain an ext2fs file system
>    size=104320K  mtime=Fri Aug  8 08:26:43 2008
> mdadm: /dev/sdd1 appears to contain an ext2fs file system
>    size=104320K  mtime=Fri Aug  8 08:26:43 2008
> mdadm: create aborted
>
>
> This morning, after googling, I used "mdadm --stop /dev/md0 ( or /dev/md1,
> md2 ) to fix it. And I could be able to create md0, md1, md2.
>
> Now I clear all the partitions and do again but it fails.
>
> Below is my fdisk -l.
> /dev/sdb, /dev/sdc and /dev/sdd are used for software raid.
> /dev/sda just for booting and loading Linux.
>
> Thanks,
>
> Vu
>
>
>
>
> [root at wks-178 ~]# fdisk -l
>
> Disk /dev/sda: 146.1 GB, 146163105792 bytes
> 255 heads, 63 sectors/track, 17769 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
>   Device Boot      Start         End      Blocks   Id  System
> /dev/sda1   *           1          13      104391   83  Linux
> /dev/sda2             275       17769   140528587+  83  Linux
> /dev/sda3              14         274     2096482+  82  Linux swap / Solaris
>
> Partition table entries are not in disk order
>
> Disk /dev/sdb: 146.1 GB, 146163105792 bytes
> 255 heads, 63 sectors/track, 17769 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
>   Device Boot      Start         End      Blocks   Id  System
> /dev/sdb1               1        4863    39062016   fd  Linux raid
> autodetect
> /dev/sdb2            4864       12158    58597087+  fd  Linux raid
> autodetect
> /dev/sdb3           12159       17770    45078273   fd  Linux raid
> autodetect
>
> Disk /dev/sdc: 146.1 GB, 146163105792 bytes
> 255 heads, 63 sectors/track, 17769 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
>   Device Boot      Start         End      Blocks   Id  System
> /dev/sdc1               1        4863    39062016   fd  Linux raid
> autodetect
> /dev/sdc2            4864       12158    58597087+  fd  Linux raid
> autodetect
> /dev/sdc3           12159       17770    45078273   fd  Linux raid
> autodetect
>
> Disk /dev/sdd: 146.1 GB, 146163105792 bytes
> 255 heads, 63 sectors/track, 17769 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
>   Device Boot      Start         End      Blocks   Id  System
> /dev/sdd1               1        4863    39062016   fd  Linux raid
> autodetect
> /dev/sdd2            4864       12158    58597087+  fd  Linux raid
> autodetect
> /dev/sdd3           12159       17770    45078273   fd  Linux raid
> autodetect



-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
L. Friedman netllama at gmail.com
LlamaLand https://netllama.linux-sxs.org