Background The following process can be used to set password protection to GRUB. Steps 1. First, you must generate a strong password, and you can do this using the grub-md5-crypt command, for example # /sbin/grub-md5-cryptPassword:Retype password:$1$BaV5k1$02kE6BCxzGRyByx.RWHEd1# 2. After generating the hashed password, you can provide the value in the /etc/grub.conf…
The MaxReadRequest feature is used to ensure a fairer bandwidth allocation of PCI Express. It specifies the largest read request any PCI Express device can generate. To reduce the way the bus is hogged by large reads one reduces the MaxReadRequest size. The MaxReadRequest size is set too low and…
This article describes how to overcome some problems with using this region, that stem from having an old python-boto package which cannot handle this newer region. Support for eu-central-1 has been added to the boto library with python-boto version 2.34.0. Unfortunately package repositories for operating systems like RHEL 7.0 (Red…
Purpose Setting a node to the CLOSED state typically removes an unhealthy node from the cluster management system. The node can still be UP and display UP/CLOSED. However, the node can continue running workload jobs in this state, since workload managers run independently of CMDaemon. If the workload manager is…
Purpose The default bare-metal installation is relatively straightforward, so a bare-metal remote installation isn’t a common need. However, a bare-metal remote installation is useful when the person who can physically access the cluster hardware is expected to spend minimal time at its physical location, and the aim is to set…
SLURM Fair Sharing can be configured using the sacctmgr tool. The following example illustrates how 50% Fair Sharing between two Users, User1 and User2, can be configured 1. create a cluster for which you’ll define accounts and users: # sacctmgr create cluster bcm 2. create a parent account # sacctmgr…
Bright Cluster Manager does not support HA (High Availability) for PBSPro when the shared storage used is DAS or DRBD. To achieve HA in Bright Cluster Manager 7.2, PBSPro must be configured manually as described in this article. Note: As part of this procedure, a copy of the pbs_comm executable is…
NX by NoMachine has been used by some of our customers without issues. On thing you will have to note is that if you install a desktop environment like GNOME, you will need to make sure that the Network Manager service is disabled as it will conflict with the network…
This article is being updated. Please be aware the content herein, not limited to version numbers and slight syntax changes, may not match the output from the most recent versions of Bright. This notation will be removed when the content has been updated. You may modify the VNC proxy hostname in Bright…
This article is being updated. Please be aware the content herein, not limited to version numbers and slight syntax changes, may not match the output from the most recent versions of Bright. This notation will be removed when the content has been updated. Scenario: You have installed OpenStack with one controller. Now…