An Mdadm Question

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CentOS 7.

I have a server with four drives. 1 is /, and the other three are in RAID5. I need to pull a drive, so I can test whether the server can read > 2TB drives. I've been googling, but don't want to screw the server up....

I think I'd like to 1. stop the RAID 2. pull a drive 3. put in a large drive, and run parted, and mkfs 4. pull the large drive 5. replace the RAID drive 6. fire up the RAID.

So, can I do it in that order? Do I need to fail something?

mark

CentOS 15 hours ago 3 Answer

CEBA-2015:1205 CentOS 6 Cluster BugFix Update

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CentOS Errata and Bugfix Advisory 2015:1205

Upstream details at : https://rhn.redhat.com/errata/RHBA-2015-1205.html

The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename )

i386: 90ef0a84184a3857346cc2b4693509e5d91d5bb0a9acda7cd4904fd14aade523 clusterlib-3.0.12.1-68.el6_6.1.i686.rpm 24a565af8a5f95f74ce5e361db082cfd583507446ba2915772e2f54ce5ef16a2 clusterlib-devel-3.0.12.1-68.el6_6.1.i686.rpm 0649fb13b74635527b1bbdfeb34dadf4198d6886397b38f9605b38cd85e5f8a2 cman-3.0.12.1-68.el6_6.1.i686.rpm dab56b4f6957e8a1136e735d1b3f271555c04adb61dbca496c50393277d13529 gfs2-utils-3.0.12.1-68.el6_6.1.i686.rpm

x86_64: 90ef0a84184a3857346cc2b4693509e5d91d5bb0a9acda7cd4904fd14aade523 clusterlib-3.0.12.1-68.el6_6.1.i686.rpm 06cd9d2f96a961d1c67f89ced86925224b636d2371a5ea75b2ab9fd7afb78f98 clusterlib-3.0.12.1-68.el6_6.1.x86_64.rpm 24a565af8a5f95f74ce5e361db082cfd583507446ba2915772e2f54ce5ef16a2 clusterlib-devel-3.0.12.1-68.el6_6.1.i686.rpm ea72d89d426bc921d34d650b69c07673558dea746d6de0f11785729fba7c398f clusterlib-devel-3.0.12.1-68.el6_6.1.x86_64.rpm 9bc8ecb5f0a5daf0a1dd7890612395a905576b922b1820baee4213a4614557d0 cman-3.0.12.1-68.el6_6.1.x86_64.rpm fcf679b864fb47c769c2a735197f853164aec04d5a968efbb23efa567f9d1698 gfs2-utils-3.0.12.1-68.el6_6.1.x86_64.rpm

Source: 13e2a6f640e75705771785dd7248eb66bb3dd039df0eb3ea462df0497e65968d cluster-3.0.12.1-68.el6_6.1.src.rpm

CentOS-Announce 18 hours ago 0 Answer

CESA-2015:1197 Moderate CentOS 5 Openssl Security Update

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CentOS Errata and Security Advisory 2015:1197 Moderate

Upstream details at : https://rhn.redhat.com/errata/RHSA-2015-1197.html

The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename )

i386: 8b8c609255b3fc78e8a8227dfcf456fc6fad6ee44402b00741d66eb7a7c91b02 openssl-0.9.8e-36.el5_11.i386.rpm 61f39339bba2e5d56667ccf56d5209e48dc3bce26b45d1b0d043ae5a5f4cd96c openssl-0.9.8e-36.el5_11.i686.rpm 00f5e3d2df2c933bbc7d49df3a0496212963eae0923ea1a8ab78c698bd67ab30 openssl-devel-0.9.8e-36.el5_11.i386.rpm 6e76fd11355d47b0ba0afc79f8cfe97fea5ec3434dc4ec0a75d426fd2a1f3d09 openssl-perl-0.9.8e-36.el5_11.i386.rpm

x86_64: 61f39339bba2e5d56667ccf56d5209e48dc3bce26b45d1b0d043ae5a5f4cd96c openssl-0.9.8e-36.el5_11.i686.rpm 9f922500d3726e5e910e3291bd6ababbd82df79b9b504f654e8711e3922d24a7 openssl-0.9.8e-36.el5_11.x86_64.rpm 00f5e3d2df2c933bbc7d49df3a0496212963eae0923ea1a8ab78c698bd67ab30 openssl-devel-0.9.8e-36.el5_11.i386.rpm be2e32d534efa94c2be0077f4cd9fcb4923f4cf1c5f34002ad865ea28e127f6a openssl-devel-0.9.8e-36.el5_11.x86_64.rpm 949a68f470e7baaa9385c6a5b6efbab45762e8693a2258e2b5cf2a755fadfc16 openssl-perl-0.9.8e-36.el5_11.x86_64.rpm

Source: d3fd488129138efbffee4176587436a22c10e54950bc274f1fd894dc355adf55 openssl-0.9.8e-36.el5_11.src.rpm

CentOS-Announce 18 hours ago 1 Answer

IPMI/BMC/BIOS

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We have recently been asked to evaluate some computing machinery for a new project. This particular end user has very limited experience with the stated security requirements in a lights-out environment. Their primary work (as well as mine) in the past has been with very small, simple networks of desktop machines and a few servers with extremely limited access.  For the most part, their admins haverefused to use any maintenance connectivity to servers other thanthe primary serial ports. There is a concern about system security primarily driven by recent information searches performed by end user admins and included below. IPMI/BMC…

CentOS 20 hours ago 3 Answer

Problems With Samba-based Home-Directory

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Hi folks,

I'm running CentOS 6.6 on my workstation. There I have a user meikel, and its home directory /home/meikel ist stored on a samba share on a server which also runs CentOS 6.6.

In the very beginning I added the mount options for that home directory into the /etc/fstab file which led to some problems, so I set up autofs for mounting the home directory.

The autofs seems to work for /home/meikel, but sometimes when I login at the GUI, I get error messages which look a little as if the home dir isn't available, I then also don't get my desktop…

CentOS 23 hours ago 1 Answer

What Causes Phantom Update Nags?

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My Update Applet keeps giving me messages to install an update to a package I do not have installed. To make matters more confusing, when I actually try to install the package it wants to update, there is a problem with the installation.

Any tips on how to resolve this? Is this somehow caused by the repositories I have enabled?

CentOS 1 days ago 6 Answer

USB Stick Query

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I have a working CentOS-7 machine. I want to install grub2 on a USB stick (without altering my present system in any way) so that I can boot the present system from the USB stick.

Could some kind (and expert) soul explain precisely what to do.

If it were possible to boot other systems on the computer as well that would be an added bonus.

I did google for this, but all the sites I saw wanted to do more than I am asking. I also tried "sudo grub2-install /dev/sdb" but for some reason this did not do the trick.

CentOS 2 days ago 2 Answer

Nfs Problems Lately ?

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Hi! Did anyone encountered problems with nfs after the latest updates? I started to have problems like nfsvers=3 no longer working in fstab or messages like : RPC: Program not registered

Thanks! Adrian

CentOS 2 days ago 4 Answer