Knowledge Base

FAQ for Technical Support

Use Grafana to Show Prometheus Data
Applicable for UVS Manager 2.14.17+ Prepare a CentOS 7 environment, here I'm using CentOS 7.8.2003. A. Ambedded Prometheus Since UVS 2.14.17,...
Thu, Nov 12, 2020 at 2:50 PM
Use RGW Immutable Buckets on Veeam
Applicable for UVS Manager 2.14.17+ Prepare a CentOS 7 environment, here I'm using CentOS 7.8.2003. Prepare a Veeam environment, here I'm using W...
Wed, Nov 25, 2020 at 9:29 AM
Why removing data from RBD disk does not free-up space on ceph cluster and do we have to always perform fstrim to free up space?
Issue Do we need to return capacity using fstrim command? Are there any way I can automatically reclaim disk space for deleted data without performing f...
Tue, Dec 29, 2020 at 11:02 AM
Ceph - BlueStore BlueFS Spillover Internals
Resolution Conceptually, in RocksDB every piece of information is stored in files. RocksDB recognizes three types of storage and expects them to be wel...
Sat, Dec 26, 2020 at 12:03 PM
How to do a Ceph cluster maintenance/shutdown on Mars400
Our Mars400's BMC can shut down all nodes in the same chassis. So before a maintenance or BMC firmware update, we need to make CEPH stop IO before shutt...
Mon, Oct 4, 2021 at 2:22 PM
Prepare the External RGW Hosts for Ceph Octopus
Purpose Before you can deploy Ceph RADOS Gateway for version 15.2.x (Octopus) by UVS Manager, please follow the following steps to prepare the necessary s...
Fri, Feb 26, 2021 at 10:01 AM
Basic Mars 400 switch check
Mars400 Switch Enter the switch console from BMC. (Mars400 Poweron) Enter command >>>console Choice >>>a or Choice >>>b "...
Fri, Mar 3, 2023 at 3:15 PM
Mars400 node and BMC SNMP support
Ambedded Mars 400 appliance embedded SNMP agent in microserver node and BMC. Please refer to their OID tables.
Tue, Nov 9, 2021 at 6:46 PM
Prepare CEPH pacific environment for x86_64 Machine
This page shows how to prepare an x86_64 machine as an external service.  0. System required: Linux distribution: Ubuntu LTS 18.04.06 only Support...
Tue, Mar 15, 2022 at 5:35 PM
Guide to Configure Active-Active Samba Service Over CephFS
Applicable for UVS Manager 2.16.19.06+ Prepare 2 * ubuntu 18.04 environment with extension packages for samba gateway, please refer the following link htt...
Tue, Nov 8, 2022 at 1:25 AM