LinuxQuestions.org
LinuxAnswers - the LQ Linux tutorial section.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices

Reply
 
Search this Thread
Old 08-31-2004, 01:52 PM   #1
Coldburn
LQ Newbie
 
Registered: Aug 2004
Location: Texas, USA
Distribution: FD3
Posts: 7

Rep: Reputation: 0
Question do you know mdadm?


I have two SCSI drives I'm trying to stripe together using mdadm.

[root@fedora root]# mdadm -Cv /dev/md0 -l0 -n2 -c64 /dev/sd[ab]
mdadm: /dev/sda appears to contain a reiserfs file system
size = 17872896K
mdadm: /dev/sda appears to be part of a raid array:
level=0 devices=2 ctime=Tue Aug 31 10:07:30 2004
mdadm: /dev/sdb appears to be part of a raid array:
level=0 devices=2 ctime=Tue Aug 31 10:07:30 2004
Continue creating array? y
mdadm: array /dev/md0 started.
[root@fedora root]#

I'm concerned about this 'super block' issue -->

[root@fedora root]# mdadm --query /dev/md0
/dev/md0: 17.04GiB raid0 2 devices, 0 spares. Use mdadm --detail for more detail.
/dev/md0: No md super block found, not an md component.
[root@fedora root]#

What have I done wrong? There doesnt seem to be alot of documentation on this, especially diagnosing problems.

Thanks!
 
Old 08-31-2004, 02:22 PM   #2
Coldburn
LQ Newbie
 
Registered: Aug 2004
Location: Texas, USA
Distribution: FD3
Posts: 7

Original Poster
Rep: Reputation: 0
oops - helps if your looking at the physical drive!

[root@fedora etc]# mdadm -E /dev/sda <----
/dev/sda:
Magic : a92b4efc
Version : 00.90.00
UUID : 83767fbc:d990754a:8f2dac44:047b4945
Creation Time : Tue Aug 31 10:11:28 2004
Raid Level : raid0
Device Size : 8936448 (8.52 GiB 9.15 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0

Update Time : Tue Aug 31 10:11:28 2004
State : dirty, no-errors
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 1ccdc074 - correct
Events : 0.4

Chunk Size : 64K

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


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
I guess I don't understand MDADM musicman_ace Linux - General 5 10-08-2005 02:30 AM
Mailing with MDADM RAID rootking Linux - Hardware 1 07-26-2005 04:47 PM
mdadm: configuration? Silver925 Linux - Newbie 5 05-25-2005 04:01 PM
multipathing - mdadm da_kidd_er Linux - General 0 05-19-2005 07:28 PM
Can I use mdadm to get the SoftRaidlist? Friarchen Linux - Software 0 09-10-2004 03:56 AM


All times are GMT -5. The time now is 04:26 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration