Is my software RAID working on FC4?

deja.10.thrillho_at_spamgourmet.com
Date: 10/23/05 

Date: 22 Oct 2005 21:45:33 -0700

I used the Fedora installer to automatically partition. On each drive,
I created 3 software RAID partitions on each drive, one sized 100MB,
one sized 787MB and the rest of the free space on the third. I then
create a RAID device (i think it was call a device) and set the mount
points: /boot on the 100, a swap partition on the 787 and / on the
rest. Creating the RAID device only let me choose one drive to attach
the mount point so I set them all to /dev/hda. After that, I let the
installer format the file system and install FC4.

How can I tell if the software RAID is actually working? Here is my
fdisk output. It looks like I'm only using one of the 2 drives:

-------------------------------------------------------------------------
[root@localhost ~]# fdisk -l

Disk /dev/hda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hda1 * 1 13 104391 fd Linux raid autodetect
/dev/hda2 14 30303 243304425 fd Linux raid autodetect
/dev/hda3 30304 30401 787185 fd Linux raid autodetect

Disk /dev/hde: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hde1 * 1 13 104391 fd Linux raid autodetect
/dev/hde2 14 30303 243304425 fd Linux raid autodetect
/dev/hde3 30304 30401 787185 fd Linux raid autodetect

Disk /dev/md0: 805 MB, 805961728 bytes
2 heads, 4 sectors/track, 196768 cylinders
Units = cylinders of 8 * 512 = 4096 bytes

Disk /dev/md0 doesn't contain a valid partition table

Disk /dev/md1: 249.1 GB, 249143623680 bytes
2 heads, 4 sectors/track, 60826080 cylinders
Units = cylinders of 8 * 512 = 4096 bytes

Disk /dev/md1 doesn't contain a valid partition table

Disk /dev/md2: 106 MB, 106823680 bytes
2 heads, 4 sectors/track, 26080 cylinders
Units = cylinders of 8 * 512 = 4096 bytes

Disk /dev/md2 doesn't contain a valid partition table
-------------------------------------------------------------------------

Relevant Pages

  • SiI3112 Serial ATA Maxtor 6Y120M0 incorrect geometry detected
    ... I've got two Maxtor 6Y120M0 drives, same firmware, but they show up ... sectors/track, 238216 cylinders. ... The partition table on /dev/hde is inconsistent. ... SiI3112 Serial ATA: IDE controller at PCI slot 0000:03:02.0 ...
    (Linux-Kernel)
  • Re: lvm over raid confusion
    ... I installed FC5 with the default partitioning settings (/boot + LVM partition containing LVs for / and /home) on /dev/hda. ... Then I added two more drives to the box, ... for Software RAID I've always created a partition and set it to type fd rather than use the device itself. ...
    (Fedora)
  • Re: Win server 2k vs 2k3 and proper setup (RAID)
    ... I will assume software raid. ... You will have to determine partition size based on whatever else you are ... If you have a hardware raid controller you would mirror the drives before ...
    (microsoft.public.windows.server.general)
  • Re: lvm over raid confusion
    ... Then I rebooted, and the kernel halted on boot ... ... /dev/md0 has been started with 2 drives ... for Software RAID I've always created a partition and set it ...
    (Fedora)
  • Software RAID setup at install...
    ... Have just attempted to do a clean install of FC1 and set up software RAID 1 ... be the first partition (if it's not the first partition it ends up getting ... raid the drives and complete the install. ...
    (Fedora)