Feb 282007
 
Feb 252007
 

Hardware:

  • RAID bus controller: Intel Corporation 82801HR/HO/HH (ICH8R/DO/DH) SATA RAID Controller (rev 02)
  • 2x Western Digital
    WDC WD2500YD

auf ’nem Asus P5B Deluxe.

[root@weltzerstoerung /]# dmraid -s -vvd
NOTICE: skipping removable device /dev/sdd
NOTICE: skipping removable device /dev/hdd
NOTICE: /dev/hda: asr     discovering
NOTICE: /dev/hda: ddf1    discovering
NOTICE: /dev/hda: hpt37x  discovering
NOTICE: /dev/hda: hpt45x  discovering
NOTICE: /dev/hda: isw     discovering
NOTICE: /dev/hda: jmicron discovering
NOTICE: /dev/hda: lsi     discovering
NOTICE: /dev/hda: nvidia  discovering
NOTICE: /dev/hda: pdc     discovering
NOTICE: /dev/hda: sil     discovering
NOTICE: /dev/hda: via     discovering
NOTICE: /dev/hdb: asr     discovering
NOTICE: /dev/hdb: ddf1    discovering
NOTICE: /dev/hdb: hpt37x  discovering
NOTICE: /dev/hdb: hpt45x  discovering
NOTICE: /dev/hdb: isw     discovering
NOTICE: /dev/hdb: jmicron discovering
NOTICE: /dev/hdb: lsi     discovering
NOTICE: /dev/hdb: nvidia  discovering
NOTICE: /dev/hdb: pdc     discovering
NOTICE: /dev/hdb: sil     discovering
NOTICE: /dev/hdb: via     discovering
NOTICE: /dev/sda: asr     discovering
NOTICE: /dev/sda: ddf1    discovering
NOTICE: /dev/sda: hpt37x  discovering
NOTICE: /dev/sda: hpt45x  discovering
NOTICE: /dev/sda: isw     discovering
NOTICE: /dev/sda: isw metadata discovered
NOTICE: /dev/sda: jmicron discovering
NOTICE: /dev/sda: lsi     discovering
NOTICE: /dev/sda: nvidia  discovering
NOTICE: /dev/sda: pdc     discovering
NOTICE: /dev/sda: sil     discovering
NOTICE: /dev/sda: via     discovering
NOTICE: /dev/sdb: asr     discovering
NOTICE: /dev/sdb: ddf1    discovering
NOTICE: /dev/sdb: hpt37x  discovering
NOTICE: /dev/sdb: hpt45x  discovering
NOTICE: /dev/sdb: isw     discovering
NOTICE: /dev/sdb: isw metadata discovered
NOTICE: /dev/sdb: jmicron discovering
NOTICE: /dev/sdb: lsi     discovering
NOTICE: /dev/sdb: nvidia  discovering
NOTICE: /dev/sdb: pdc     discovering
NOTICE: /dev/sdb: sil     discovering
NOTICE: /dev/sdb: via     discovering
NOTICE: /dev/sdc: asr     discovering
NOTICE: /dev/sdc: ddf1    discovering
NOTICE: /dev/sdc: hpt37x  discovering
NOTICE: /dev/sdc: hpt45x  discovering
NOTICE: /dev/sdc: isw     discovering
NOTICE: /dev/sdc: jmicron discovering
NOTICE: /dev/sdc: lsi     discovering
NOTICE: /dev/sdc: nvidia  discovering
NOTICE: /dev/sdc: pdc     discovering
NOTICE: /dev/sdc: sil     discovering
NOTICE: /dev/sdc: via     discovering
DEBUG: _find_set: searching isw_ebdgbigaaf
DEBUG: _find_set: not found isw_ebdgbigaaf
DEBUG: _find_set: searching isw_ebdgbigaaf_raid0.sys
DEBUG: _find_set: searching isw_ebdgbigaaf_raid0.sys
DEBUG: _find_set: not found isw_ebdgbigaaf_raid0.sys
DEBUG: _find_set: not found isw_ebdgbigaaf_raid0.sys
NOTICE: added /dev/sda to RAID set "isw_ebdgbigaaf"
DEBUG: _find_set: searching isw_ebdgbigaaf
DEBUG: _find_set: found isw_ebdgbigaaf
DEBUG: _find_set: searching isw_ebdgbigaaf_raid0.sys
DEBUG: _find_set: searching isw_ebdgbigaaf_raid0.sys
DEBUG: _find_set: found isw_ebdgbigaaf_raid0.sys
DEBUG: _find_set: found isw_ebdgbigaaf_raid0.sys
NOTICE: added /dev/sdb to RAID set "isw_ebdgbigaaf"
DEBUG: checking isw device "/dev/sda"
DEBUG: checking isw device "/dev/sdb"
DEBUG: set status of set "isw_ebdgbigaaf_raid0.sys" to 16
DEBUG: set status of set "isw_ebdgbigaaf" to 16
*** Group superset isw_ebdgbigaaf
--> Subset
name   : isw_ebdgbigaaf_raid0.sys
size   : 980460032
stride : 256
type   : stripe
status : ok
subsets: 0
devs   : 2
spares : 0
DEBUG: freeing devices of RAID set "isw_ebdgbigaaf_raid0.sys"
DEBUG: freeing device "isw_ebdgbigaaf_raid0.sys", path "/dev/sda"
DEBUG: freeing device "isw_ebdgbigaaf_raid0.sys", path "/dev/sdb"
DEBUG: freeing devices of RAID set "isw_ebdgbigaaf"
DEBUG: freeing device "isw_ebdgbigaaf", path "/dev/sda"
DEBUG: freeing device "isw_ebdgbigaaf", path "/dev/sdb"

wir sehen dass

type   : stripe

ist.

dann via

[root@weltzerstoerung /]# mdadm --create /dev/md0 -l stripe -n2 /dev/sda /dev/sdb
mdadm: array /dev/md0 started.

ein mdX device erzeugen was aus zwei g’stripe’ten platten besteht.

Rückfragen sind erwünscht.
// i am also speaking english, please use the comments :)

update1:

[root@weltzerstoerung /]# mdadm --detail /dev/md0
/dev/md0:
       Version : 00.90.03
 Creation Time : Sun Feb 25 17:45:24 2007
    Raid Level : raid0
    Array Size : 490234624 (467.52 GiB 502.00 GB)
  Raid Devices : 2
 Total Devices : 2
Preferred Minor : 0
   Persistence : Superblock is persistent

   Update Time : Sun Feb 25 19:55:33 2007
         State : active
Active Devices : 2
Working Devices : 2
Failed Devices : 0
 Spare Devices : 0

    Chunk Size : 64K

          UUID : a7dc0fa0:0681ac11:0fc4577a:d30e7155
        Events : 0.3

   Number   Major   Minor   RaidDevice State
      0       8        0        0      active sync   /dev/sda
      1       8       16        1      active sync   /dev/sdb

das Raid lauft so weit, ich komme allerdings nicht an die Partitionen ‚ran:

[root@weltzerstoerung /]# fdisk /dev/md0 -l

Disk /dev/md0: 502.0 GB, 502000254976 bytes
255 heads, 63 sectors/track, 61031 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

  Device Boot      Start         End      Blocks   Id  System
/dev/md0p1   *           1        5099    40957686    7  HPFS/NTFS
/dev/md0p2            5100       17847   102398310    f  W95 Ext'd (LBA)
/dev/md0p3           17848       37650   159067597+  83  Linux
/dev/md0p4           37651       61029   187791817+   7  HPFS/NTFS
/dev/md0p5            5100       17847   102398278+   7  HPFS/NTFS
[root@weltzerstoerung /]# ls /dev/|grep md
md
md0
Feb 232007
 
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