Suggestions for new hard drive partitions

[ianw1974]

Going by the partition layout, the array doesn't look like it's working in Windows.

 

Disk /dev/dm-0: 640.1 GB, 640132714496 bytes
255 heads, 63 sectors/track, 77825 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xf6ce6f14

 Device Boot	  Start		 End	  Blocks   Id  System
/dev/dm-0p1   *		   1	   77825   625129281	7  HPFS/NTFS

Disk /dev/dm-1: 640.1 GB, 640132383744 bytes
255 heads, 63 sectors/track, 77824 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x69205244

 Device Boot	  Start		 End	  Blocks   Id  System
/dev/dm-1p1   ?	   13578	  119522   850995205   72  Unknown
/dev/dm-1p2   ?	   45382	   79243   271987362   74  Unknown
/dev/dm-1p3   ?	   10499	   10499		   0   65  Novell Netware 386
/dev/dm-1p4		  167628	  167631	   25817+   0  Empty

 

these are both the disks, so, they should look the same, one partition and not a mix. I would say that Windows is using the first disk, as a disk and not as part of an array. Otherwise, you would see one partition on both devices. A driver would be used in Windows to access the configured array, and you'd use a module in Linux to see the array as it should normally be seen.

 

It doesn't look like it's working how you think it should be. I could be wrong, but I'm pretty sure it's not configured and working as it should be.

[xboxboy]

Ian, thank you for this help. Its most appreciated.

 

I've been back into windows, and it appears to be working fine.

 

I've been googling a bit and it appears the ich10r controller is faily new and not supported in a lot of distros. It appears to be very similar chipset to the ich9r, so I may have to see what others have been doing to use that.

 

I think I'll boot into a live distro, and see if I can see whats on those disks in the array, as like you say they should be identical!

 

I have checked the manufacturer, both board and intels, and neither have a linux driver for the ich10r. I am surprised its not working under linux as the installer asked if it should use the array, so its detected, but somewhere along the line it's not configured right.

[xboxboy]

I booted into both linux mint and pclinux, neither see the raid array, but both hard drives are identical, with only one partition on each. Not sure what mandriva is doing, given its seeing different things.

[xboxboy]

Ok Ive seen in a few forums that dmraid can run the earlier ichXr controllers.

 

So first I ran

[root@localhost matthew]# dmraid -ay

RAID set "isw_bebgibagai_Cleggett08" already active

 

Which shows I have the raid array active. Then i ran

[root@localhost matthew]# dmraid -s

*** Group superset isw_bebgibagai

--> Active Subset

name : isw_bebgibagai_Cleggett08

size : 1250259200

stride : 128

type : mirror

status : ok

subsets: 0

devs : 2

spares : 0

 

Looking good I thought, it shows two devices, in mirror

 

Then I tried again

[root@localhost matthew]# dmraid -ay

RAID set "isw_bebgibagai_Cleggett08" already active

RAID set "isw_bebgibagai_Cleggett081" already active

 

Why has it now picked up the second imaginary array????

 

I tried to mount isw_bebgibagai_Cleggett08, but was unable to. What is the correct line to do so? I tried to mount the partition in MCC as /mnt/raidcleggett08 (I've made that folder) but I get fail messages at boot.

Edited December 15, 2008 by xboxboy

[xboxboy]

I thought about this last night and I think I know whats going on....I dont know how to fix it

 

When I installed the 2008.1, the installer program asks if it should use the two drives as a raid array. I answer yes to this. I of course chose custom partitioning, and never applied a mount point to the raid array.

 

So of course the OS can see the partition/array, I just have to mount it and it should work fine.

 

Im not sure how to do this correctly.

[ianw1974]

You should be able to assign the mount point under the gui mcc partitioning app. Maybe that would be easier. Just select the partition that is the raid array, and select a mount point - make a directory for it first if you like, eg: /mnt/raidarray

[xboxboy]

Ian thats what I tried, and I got some NTFS fail reports at boot, how do I go about reading what they are?

 

Thanks

[ianw1974]

Check the logs to see how it tried to mount, or dmesg, for example, and then try to mount it manually and see what it says. Maybe it requires a force, because of a problem with it being cleanly unmounted. I saw this before, which is why I mentioned it. Other than that, no idea why it didn't mount.

[xboxboy]

Ian I checked through the logs, nothing mentioned ntfs, only where it mounts the windows partition

[ianw1974]

Well you should be able to use:

 

mount -t ntfs /dev/mapper/restofthatraidreferencehere /mnt/ntfs

 

create /mnt/ntfs directory first.

[xboxboy]

[root@localhost matthew]# mount -t ntfs /dev/mapper/isw_bebgibagai_Cleggett08 /mnt/raidcleggett08
mount: /dev/mapper/isw_bebgibagai_Cleggett08 already mounted or /mnt/raidcleggett08 busy
[root@localhost matthew]#

 

How do I determine where it is mounted?

[ianw1974]

A simple way is to just type:

 

df

 

to show file system disk space usage, and it will tell you where it's mounted as well.

[xboxboy]

[root@localhost matthew]# df

Filesystem Size Used Avail Use% Mounted on

/dev/sdc6 49G 3.0G 43G 7% /

/dev/sdc1 18G 14G 3.5G 81% /mnt/windows

[root@localhost matthew]#

 

Thanks Ian, so it looks as though /mnt/raidclegget08 is busy...How do I go about changing this?

[ianw1974]

If that directory is busy, mount it elsewhere. Check what is in raidclegget08 first and see if your data is there or not.

[xboxboy]

Ian sorry to be so demanding!

 

I tried a different directory, but got the same result.

 

I wonder its from where it tries to be mounted in the fstab file. During boot the fault I get is

Mounting local filesystems: ntfs-3g: Failed to access volume 'uuid=14d0ca71doca589e': No such file or directory

 

Please type '/sbin/mount-ntfs-3g --help' for more information

 

could this be the problem?

 

My fstab file is:

# Entry for /dev/sdc6 :

UUID=8d98e80f-5ff9-4d31-8f99-22eacfead24e / ext3 relatime 1 1

/dev/cdrom /media/cdrom auto umask=0,users,iocharset=utf8,noauto,ro,exec 0 0

/dev/fd0 /media/floppy auto umask=0,users,iocharset=utf8,noauto,exec,flush 0 0

# Entry for /dev/mapper/isw_bebgibagai_Cleggett08p1 :

UUID=14D0CA71D0CA589E /mnt/raidcleggett08 ntfs-3g defaults 0 0

# Entry for /dev/sdc1 :

UUID=867893F17893DDED /mnt/windows ntfs-3g defaults 0 0

none /proc proc defaults 0 0

# Entry for /dev/sdc5 :

UUID=aa3e9216-97b8-4828-a615-a6c962afe02b swap swap defaults 0 0