Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base

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Master DNS Server Configuration in Linux

The Configuration mentioned in this post is part of the post “DNS Server Configuration in Linux“ A master server is the basis for the DNS infrastructure. It provides a place to define all DNS records and extend them to secondary servers that can help with load...

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Solaris Troubleshooting Jumpstart : Identification of right network interface for network boot

During the jumpstart installation of a client below error is most command error that we encounter: Error: “Timeout waiting for ARP/RARP packet” This error cause might be network connectivity and most of the times it is the wrong network interface that is configured to boot from...

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Linux Admin Reference – GFS2 Filesystem configuration in Clustered Environment – RHCS Part1

  What is the Purpose of LVM in Clustered Environment and What are the Limitations? The Red Hat GFS2 file system is a native file system that interfaces directly with the Linux kernel file system interface (VFS layer). Red Hat supports the use of GFS2 file...

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Configuring Open-E DSS for SCSI-3 Persistent LUN’s

The installation of Opene-dss has been published in previous post. Kindly refer: http://mentorsup.com/blog/2016/02/installation-of-open-e-dss-on-vmware-workstation-for-shared-storage-in-unix-supported-for-scsi-3-persistent-reservation/ Creation of iSCSI Volume: I have assigned 1*5GB lun from VMware on Opene-dss VM. Login to opene-dss via GUI. Go to configuration -> Volume Manager -> Volume Group Now tick the disk (one...

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VxVM 5.0- Replacing rootdisk from rootdg – failing with error "Disk public region is too small"

Error while adding  replaced disk to the root mirror Solaris:/etc/vx/bin> vxdg -g rootdg -k adddisk rootdisk=c1t4d0s2 VxVM vxdg ERROR V-5-1-10127 associating disk-media rootdisk with c1t4d0s2:    Disk public region is too small   Resolution:  Solaris :/etc/vx/bin> vxdisk list DEVICE       TYPE            DISK         GROUP        STATUS c1t4d0s2     auto:sliced     –            –           ...

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