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


VCS : Starting LLT , GAB and VCS manually

  VCS uses two components, LLT and GAB, to share data over private networks among systems. These components provide the performance and reliability that VCS requires. LLT (Low Latency Transport) provides fast, kernel-to-kernel communications, and monitors network connections. LLT configuration files are as follows: /etc/llthosts—lists all...


Solaris : Setup NTP client in solaris 8 , 9 and 10

This post describes how to set up NTP (Network Time Protocol) client different ways   1. Copy over /etc/inet/ntp.client to /etc/inet/ntp.conf   #  cp /etc/inet/ntp.client /etc/inet/ntp.conf 2. start xntpd daemon on client For Solaris 8 and 9: # /usr/lib/inet/xntpd For Solaris 10: # svcadm enable ntp There are...


VxVM : Resolving the Intermittent Disk errors by clearing the failing flag on a disk

If I/O errors are intermittent rather than persistent, VxVM sets the failing flag on a disk, rather than detaching the disk. Such errors can occur due to the temporary removal of a cable, controller faults, a partially faulty LUN in a disk array, or a disk...


Linux : Identifying Disk Errors in Linux

Below procedure can be used to identify the hard disk errors in linux operating system. Execute the following command to identify the available disk configuration   # /bin/more /proc/scsi/scsi Output will include all the currently available disks to the linux, and the output vary depending on...


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