If i don't have raid disks can i shut down dmraid device-mapper?


 
Thread Tools Search this Thread
Operating Systems Linux If i don't have raid disks can i shut down dmraid device-mapper?
# 1  
Old 04-08-2011
If i don't have raid disks can i shut down dmraid device-mapper?

hello
my centOS newly installed system loading dmraid modules on startup
I did remove all LVM/raid things from system installation menus and after installation too but dmraid is still there
and he says: no raid disks found

also I did modprobe -r dm_raid45 and it do remove it but only until next boot

I've add to /etc/modprobe.d/blacklist string "blacklist dm-raid45" (it's file name with - not _)but it still loading on startup..

so my question is: how to remove this useless soft(or fake)raid thing from the system? from loading?
tip78
# 2  
Old 04-08-2011
Is an extra line on bootup really that important to you? These things are loaded on boot to make the system more flexible and really aren't a drain on resources; you could do more harm than good digging deep enough to remove it that completely.
# 3  
Old 04-09-2011
in that case it, of course, not necessary
but what flexible in the raid when there's no raid?
tip78
# 4  
Old 04-11-2011
It allows you to use RAID disks without having to hand-edit your system configuration files beforehand. This is not a particularly easy thing to do. If you change your mind now, you'll probably have to undo all the work you did.

Last edited by Corona688; 04-11-2011 at 01:34 PM..
# 5  
Old 04-13-2011
which work? i've done NO work with raids at all Smilie
tip78
# 6  
Old 04-13-2011
I'm just saying why work so hard to break something that was difficult to make?
# 7  
Old 04-13-2011
what was 'difficult to make' ?
tip78
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Ubuntu

Md0 raid don't see my folders

I suddenly don't see my folders into /mnt/md0. What can be reason? mdadm --detail /dev/md* /dev/md0: Version : 1.2 Creation Time : Fri Jan 18 09:54:27 2019 Raid Level : raid1 Array Size : 1953383488 (1862.89 GiB 2000.26 GB) Used Dev Size : 1953383488 (1862.89 GiB... (8 Replies)
Discussion started by: tomislav91
8 Replies

2. UNIX for Advanced & Expert Users

Command to see the logical volume path, device mapper path and its corresponding dm device path

Currently I am using this laborious command lvdisplay | awk '/LV Path/ {p=$3} /LV Name/ {n=$3} /VG Name/ {v=$3} /Block device/ {d=$3; sub(".*:", "/dev/dm-", d); printf "%s\t%s\t%s\n", p, "/dev/mapper/"v"-"n, d}' Would like to know if there is any shorter method to get this mapping of... (2 Replies)
Discussion started by: royalibrahim
2 Replies

3. Solaris

Hardware RAID using three disks

Dear All , Pl find the below command , # raidctl -l Controller: 1 Volume:c1t0d0 Disk: 0.0.0 Disk: 0.1.0 Disk: 0.3.0 # raidctl -l c1t0d0 Volume Size Stripe Status Cache RAID Sub Size ... (10 Replies)
Discussion started by: jegaraman
10 Replies

4. Red Hat

Device-mapper behaviour booting on init=bin/bash

Good morning Recently we needed to change the password from a redhat 6.5 system that no one knew the root password. Starting the system with the init=/bin/bash method took us to the following scenario: system_vg active with only root_lv and tmpfs mounted. our entries at fstab are like... (1 Reply)
Discussion started by: Ikaro0
1 Replies

5. AIX

SCSI PCI - X RAID Controller card RAID 5 AIX Disks disappeared

Hello, I have a scsi pci x raid controller card on which I had created a disk array of 3 disks when I type lspv ; I used to see 3 physical disks ( two local disks and one raid 5 disk ) suddenly the raid 5 disk array disappeared ; so the hardware engineer thought the problem was with SCSI... (0 Replies)
Discussion started by: filosophizer
0 Replies

6. Solaris

Solaris not recognizing RAID 5 disks

I've just installed Sol 10 Update 9 on a Sun 4140 server and have a RAID 1 configuration (2 136 Gb drives) for the OS and have created a RAID 5 array (6 136 GB) drives. When i log into the system I am unable to see the RAID 5 disks at all. I've tried using the devfsadm command but no luck and... (9 Replies)
Discussion started by: goose25
9 Replies

7. Red Hat

Device Mapper Notations and LVM

Hi, I had a doubt regarding device mapper notations and their corresponding LVM volumes. I have configured a volume group with two logical volumes in it as root and swap. The entries in the /etc/fstab file show the dm notations namely, /dev/mapper/VolGroup00-LogVol01... (2 Replies)
Discussion started by: kanna_geekworkz
2 Replies

8. Red Hat

device-mapper-multipath path [undef]

I have an HP blade with Qlogic HBA's connected to an EVA8000. I have downloaded the latest multipath.conf from HP's website. The drive presented to the server appears to be configured and working except the output of "multipath -l" shows for all paths. What is causing this output? mpath0... (2 Replies)
Discussion started by: manzier
2 Replies

9. Solaris

Move disks to different StorEdge, keeping RAID

Hi. I need to move a 5 disk RAID5 array from a SE3310 box to a different SE3310 array. After installing the disks in the "new" StorEdge device, I "would like" ;) to be able have access to the data which is on the RAID. Essentially, the quesion is, how can this be done? :confused: I checked... (5 Replies)
Discussion started by: alexs77
5 Replies

10. Red Hat

IBM RAID disks

We have a Red Hat linux server running on IBM x445 hardware. There are external disks in an IBM EXP300 disk enclosure. The system is running RAID 5. One of the four IBM disks (73.4 GB 10k FRU 06P5760) has become faulty. The system is still up and running OK because of the RAID. In that same EXP300... (3 Replies)
Discussion started by: pdudley
3 Replies
Login or Register to Ask a Question

Featured Tech Videos