similar to: mdraid doesn't allow creation: device or resource busy

Hello, I have installed ocfs2 without problem and use it for a RAC10gR2. Only Clusterware files are ocfs2 type. multipath is also used. When I issue : mounted.ocfs2 -f I have a strange result: Device FS Nodes /dev/sda ocfs2 Unknown: Bad magic number in inode /dev/sda1 ocfs2 pocrhel2, pocrhel1 /dev/sdb ocfs2 Not mounted /dev/sdf

I am attempting to get multipath working with device-mapper (CentOS 4.2 and 4.3). It works on EVERY install of mine from RH (also v4.2, 4.3), but the same multipath.conf imported to all my installs of CentOS do not work. Note that I have tested a working 4.2 configuration file from RH on CentOS 4.2 and a working 4.3 configuration (it changed slightly) on CentOS 4.3. Neither worked. Our production

Hi. Somehow I do not see any out put using multipath -l or multipath -ll . But I can see using dry run ie multipath -d. Also I do not see /dev/dm-* It was there before. How do I re claim it. Thanks! Paras. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20100111/6c286a02/attachment-0001.html>

hi all We have a rh linux server connected to two HP SAN controllers, one an HSV200 (on the way out), the other an HSV400 (on the way in). (Via a Qlogic HBA). /etc/multipath.conf contains this : device { vendor "(COMPAQ|HP)" product "HSV1[01]1|HSV2[01]0|HSV300|HSV4[05]0" getuid_callout "/sbin/scsi_id -g -u -s /block/%n"

I have a Dell PowerEdge 2950 and am looking to add more storage. I know a lot of factors can go into the type of answer given, but for present and future technology planning, should I look for a rack of SATA, SCSI, or fibre channel drives? Maybe I'm dating myself with fibre channel, and possibly SCSI? I may be looking to add a few TB now, and possibly more later. What are people

Hi all, some results from my configuration. I''ve this configuration (I''m not interested in raw top performances but in reliability.. so, I can accept slow MB/sec and prefer to rely on a RAID6, for example): 1 Infortrend iSCSI Array A16E-G2130-4 with: - 1GB DDR cache - RAID6 - 7 x 500GB sataII Seagate ST3500630NS with 16mb (no budget for SAS) - one of the logic volumes (about

Dear list, we have a relatively new Sun Storage 7310, where we connect CentOS 5.5 Servers (IBM LS21/LS41 Blades) via Brocade Switches, 4GBit FC. The Blades boot from SAN via qla2xxx, and have no harddisks at all. We want them to use multipathing from the very beginning, so /boot and / are already seen by multipathd. Problem is, that the Sun 7310 has two storage heads which run in

Hello, this is my scenario: 1)I've created a Pacemaker cluster with the following ocfs package on opensuse 11.3 64bit ocfs2console-1.8.0-2.1.x86_64 ocfs2-tools-o2cb-1.8.0-2.1.x86_64 ocfs2-tools-1.8.0-2.1.x86_64 2)I've configured the cluster as usual : <resources> <clone id="dlm-clone"> <meta_attributes id="dlm-clone-meta_attributes">

Alessandro Baggi wrote: > Il 30/01/19 16:33, mark ha scritto: > >> Alessandro Baggi wrote: >> >>> Il 30/01/19 14:02, mark ha scritto: >>> >>>> On 01/30/19 03:45, Alessandro Baggi wrote: >>>> >>>>> Il 29/01/19 20:42, mark ha scritto: >>>>> >>>>>> Alessandro Baggi wrote:

Dear Xen users! In case you were struggling with recent version of th gplpv drivers, I''ve possibly found an LVM related bug in it, and reported to James Harper. Thats''s the point: I''ve tested the mentioned version of your driver on top of 32bit xen-3.2.1 32bit xen-3.3.0 and 64bit xen xen-3.3.0 hypervisors, dom0 was always an appropriate version of a 32bit PAE kernel,

Hello, I have IBM Storwize V3700 storage, connected to 2 IBM x3550 M4 servers via fiber channel. The servers are with QLogic ISP2532-based 8Gb Fibre Channel to PCI Express HBA cards and run Centos 5.10 When I export a volume to the servers, each of them sees the volume twice, i.e /dev/sdb and /dev/sdc, with the same size. Previously I have installed many systems with IBM DS3500 series of

Is it possible or will there be any problems with using mdraid on top of mdraid? specifically say mdraid 1/5 on top of mdraid multipath. e.g. 4 storage machines exporting iSCSI targets via two different physical network switches then use multipath to create md block devices then use mdraid on these md block devices The purpose being the storage array surviving a physical network switch

Hello, it seems I cannot use: $ ssh -J root at 2a01:4f8:1c1e:528d::1 root at west-coast Invalid -J argument (The west-coast is stored on the jump host in between in /etc/hosts.) $ ssh -J root at 167.235.141.44 root at west-coast Works as expected. Also $ ssh root at 2a01:4f8:1c1e:528d::1 does work as expected. I do have native IPv6. This is on Debian 12 Bookworm: $ ssh -V OpenSSH_9.2p1

Can I combine VMWare ESXi (free version) virtualization and CentOS mdraid level 1? Any pointers how to do it? I never used VMWare before. - Jussi -- Jussi Hirvi * Green Spot Topeliuksenkatu 15 C * 00250 Helsinki * Finland Tel. +358 9 493 981 * Mobile +358 40 771 2098 (only sms) jussi.hirvi at greenspot.fi * http://www.greenspot.fi

Hi, I am trying to adapt my kickstart usb key to optionally auto-setup mdraid on two disks...? But I have one server that keeps attaching the usb key to sda instead of sdc... My kickstart creates the raid devices on sdb and sdc partitions; but then I expect it not to work once the key is unplugged and the disks fall back to sda and sdb... Can I just modify mdadm.conf at the end, just

On Sat, Feb 28, 2015 at 5:14 PM, Chris Murphy <lists at colorremedies.com> wrote: > "Drives, and hardware RAID cards are subject to firmware bugs, just as > we have software bugs in the kernel." makes no assessment of how > common such bugs are relative to each other. I don't want to underestimate the value of good hardware RAID with BBWC implementations when it comes

There are some errors on my root filesystem, so I need to fsck it. In order to do this while the filesystem is unmounted, I'm booting from the install disk. However, since the filesystem is on an mdraid device, I'm not sure of the right way to get it assembled so I can check it. If I do, mdadm --examine --scan, then I get this: ARRAY /dev/md/2 metadata=... (and others, but I'm

I am trying to use a kickstart to install CentOS 8.2 on a server with a pair of drives with Linux software RAID 1. The install completes, but the resulting system will not boot - I get "Booting from Hard drive C:" from the BIOS (Dell in legacy BIOS mode, not UEFI) and it stops. If I then start the installer in rescue mode and run grub2-install on the two drives, it boots okay. If I

On 11/15/20 3:32 AM, ?ukasz Posadowski wrote: > Do anyone can suggest what else I forgot to do? Use metadata version 1.2 instead of 0.9. You need for the filesystem to be not visible until after the RAID is assembled, and the easiest way to do that is to put the metadata at the beginning of the drive and the partition table inside the RAID volume. With metadata version 0.9, the partition

In article <20201115123245.db62b8248e1f248afe02844a at lukaszposadowski.pl>, Lukasz Posadowski <mail at lukaszposadowski.pl> wrote: > > Hello everyone. > > I'm trying to install CentOS 8 with root and swap partitions on > software raid. The plan is: > - create md0 raid level 1 with 2 hard drives: /dev/sda and /dev/sdb, > using Linux Rscue CD, > - install