Displaying 20 results from an estimated 3000 matches similar to: "mdadm problem."
2019 Feb 25
7
Problem with mdadm, raid1 and automatically adds any disk to raid
Hi.
CENTOS 7.6.1810, fresh install - use this as a base to create/upgrade new/old machines.
I was trying to setup two disks as a RAID1 array, using these lines
mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/sdb1 /dev/sdc1
mdadm --create --verbose /dev/md1 --level=0 --raid-devices=2 /dev/sdb2 /dev/sdc2
mdadm --create --verbose /dev/md2 --level=0 --raid-devices=2
2007 Sep 24
3
CentOS Plus PHP5 upgrade.
Hi Folks,
I have some users who have a 64-bit CentOS 4.x install (current),
which was installed with @Everything and then some annoying packages
strategically removed (mrtg, pegasus*, mailman...) and they have
decided they have a need for php5.
I find on the web this instruction for doing this:
http://www.centos.org/centos/4/centosplus/Readme.txt
So I try to do this, and I get:
# rpm -e
2006 Nov 15
5
sshd logging with GMT times?
Hi folks,
while chasing down a logging-related situation, I happened to notice
that when I connect via ssh to my system it makes the following logs:
Nov 15 14:15:39 saturn sshd[29868]: Accepted password for dave from ::ffff:10.0.10.14 port 2833 ssh2
Nov 15 09:15:39 saturn sshd[29867]: Accepted password for dave from ::ffff:10.0.10.14 port 2833 ssh2
Nov 15 09:15:39 saturn sshd(pam_unix)[29869]:
2009 Jul 02
4
Upgrading drives in raid 1
I think I have solved my issue and would like some input from anyone who has
done this for pitfalls, errors, or if I am just wrong.
Centos 5.x, software raid, 250gb drives.
2 drives in mirror, one spare. All same size.
2 devices in the mirror, one boot (about 100MB), one that fills the rest of
disk and contains LVM partitions.
I was thinking of taking out the spare and adding a 500gb drive.
I
2007 Mar 29
1
4.92 Beta questions.
Installing through PXE, interactively from an NFS source. The
installer is in text mode even though I have 512MB of memory.
Two questions.
1. When installing package sets, I do not see an "Everything" option
the way there was in 4.x. Should there be? I also don't recall being
asked if I wanted Server/Workstation/Custom groupings.
2. When partitioning the disk, if I
2007 Sep 28
3
PHP5/CentosPlus big mess.
Ok, so if you tuned in last time, I couldn't make the installation/upgrade of
PHP5 from the Centos4 CentOS Plus repository work. Not one to be easilly
dissuaded, I shapened my shovel and dug myself a hole.
So using the exclude= lines in the repository config file backfired big time:
even if I excluded the exclude= lines, yum continued to exclude the files
on those lines, and only deigned to
2008 Jun 02
2
DMA mode
Hi folks,
I have an HP Proliant 140DL G2 server with what appears to be an IDE
drive in non-DMA mode. Performance on the server is extremely bad
when large amounts of disk activity is taking place.
I think the problem is that my drive is not in DMA mode:
# hdparm /dev/hda
/dev/hda:
multcount = 16 (on)
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 0 (off)
2006 Nov 03
2
Firefox Tab Cycle Plugin?
Hi folks,
I thought I saw a comment on this list a ways back about a firefox
plugin that would make a browser automatically cycle through the tabs
it had loaded. We'd like to use this to load some monitoring systems
in tabs, and then have the browser cycle through them so we have a
poor-man's status display station.
Does anyone know more specifics about this plugin I think I heard
2007 Dec 07
2
Sendmail: timeout waiting for input from local during Draining Input
Hi folks,
I've recently replaced a RedHat EL 3.x system with a CentOS 5 system
(fully yum'd as of Tuesday). This was a full-pave install, although
we did copy the sendmail.mc from the original system.
Now I get a lot of this in my logs:
Dec 7 11:47:38 mail sendmail[20117]: lB7Gl6w0020116: timeout waiting for input from local during Draining Input
The only thing even remotely
2009 Feb 01
4
Automounter issue
Anyone seen this before?
I have a number of file systems nfs mounted onto clients running
various versions of CentOS (and Upstream), although mostly they are
v5.x flavors. =20
The server is a Network Appliance filer.
When the build process for this team runs, it sometimes dies because
it can't find files in the automounter tree; if the engineer checks,
he sometimes sees a problem, and
2008 May 02
3
Archive-to-DVD
Hi folks,
Here's the situation. I have a group of engineers who love to save
things to disk. Now that the filer is getting full, they are
interested in archiving some of those things to DVD.
The tress containing the things they want to archive are specified
like so:
/path/path/path/A/04??
/path/path/path/B/04??
/path/path/path/A/05??
/path/path/path/B/05??
/path/path/path/A/06??
2006 Oct 30
2
Terminal settings question.
Hiya folks,
Maybe someone can help me with this question.
I'm a long time mutt user. However in recent years, I have been a
member of an increasing number of mail lists. And an increasing number
of mail list users are starting to use special characters in their
emails that my terminal is not understanding correctly. When it doesn't
understand the character correctly, it starts to
2008 Jul 22
2
screen detatch
The man page for screen says that I can create a detatched screen
running with a set command in it by doing this:
$ screen -dm $command
However, it doesn't work. Screen exits without creating the detached
screen.
If I say
$ screen $command
...I get dropped into a screen session running $command as I would
expect.
What's the magic invocation I'm missing?
Also, the next step
2007 Mar 20
4
HP DL585 G2 -- no nics
Hi folks,
I've just spent about six hours messing around with an HP DL585 G2
server trying to get CentOS to go.
This box is a dual-CPU with dual cores and 10GB of RAM total.
According to the datasheet, the POST screens, and the BIOS, it has
the Broadcom embedded NICs in it.
The problem boils down to the installed OS (4.4 x86_64) not seeing
the NICs. If you do an lspci on the system
2012 Jun 07
1
mdadm: failed to write superblock to
Hello,
i have a little problem. Our server has an broken RAID.
# cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 sda1[2](F) sdb1[1]
2096064 blocks [2/1] [_U]
md2 : active raid1 sda3[2](F) sdb3[1]
1462516672 blocks [2/1] [_U]
md1 : active raid1 sda2[0] sdb2[1]
524224 blocks [2/2] [UU]
unused devices: <none>
I have remove the partition:
# mdadm --remove
2014 Feb 07
3
Software RAID1 Failure Help
I am running software RAID1 on a somewhat critical server. Today I
noticed one drive is giving errors. Good thing I had RAID. I planned
on upgrading this server in next month or so. Just wandering if there
was an easy way to fix this to avoid rushing the upgrade? Having a
single drive is slowing down reads as well, I think.
Thanks.
Feb 7 15:28:28 server smartd[2980]: Device: /dev/sdb
2022 Apr 24
3
Installing mdadm and C7 on new computer
On 04/23/2022 09:19 PM, H wrote:
> On 04/19/2022 09:57 AM, Roberto Ragusa wrote:
>> On 4/18/22 1:27 PM, H wrote:
>>> I have a new computer with 2 x 2TB SSDs where I wanted to install C7 and use mdadm for RAID1 configuration and encrypting the /home partition. On the net I found https://tuxfixer.com/centos-7-installation-with-lvm-raid-1-mirroring/ which I adopted slightly with
2007 Apr 25
2
Raid 1 newbie question
Hi
I have a Raid 1 centos 4.4 setup and now have this /proc/mdstat output:
[root at server admin]# cat /proc/mdstat
Personalities : [raid1]
md2 : active raid1 hdc2[1] hda2[0]
1052160 blocks [2/2] [UU]
md1 : active raid1 hda3[0]
77023552 blocks [2/1] [U_]
md0 : active raid1 hdc1[1] hda1[0]
104320 blocks [2/2] [UU]
What happens with md1 ?
My dmesg output is:
[root at
2007 May 28
3
Any HowTo for Getting Started With Xen?
Hi folks,
Now that CentOS 5 is out with Xen, I can theoretically take better
advantage of my nice Intel processor with the virtualization piece
than I can with VMware Server.
Ideally what I would like to do is install CentOS 5 as a dom0, then
run my existing CentOS 4.x installation as a domU while I figure out
how to do other interesting things (like install Solaris 10 and
Windows as domU
2006 Dec 19
1
64-bit Java?
Hi folks,
Stupid question time, possibly only tangentially related to CentOS,
and I apoligise in advance.
I have a bunch of CentOS 64-bit boxes, and I have developers who want
to run eclipse on these boxes. So I have downloaded the 64-bit
bundle of eclipse, installed the java from java.sun.com, and the
result is that Eclipse won't run. It chugges away and then reports:
$