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- 21:53, 29 March 2024 Configuring D-Link Switches (hist | edit) [6,805 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} = Validated Switches = The following switches (and firmwares) have been validates to work with the Anvil!: * DGS-3130-series Other models will be similar, but this is the tested model. = Serial Connection = {{note|1=Depending on your terminal emulator, the <span class="code"><Backspace></span> key may not work. If it doesn't, try pressing <span class="code">ctrl + h</span> to delete the character to the left of your cursor.}} You can use <span cl...")
- 20:12, 29 March 2024 Ethernet Switch Configuration (hist | edit) [824 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} The Anvil! is agnostic on ethernet switches. The only requirements is that there are two switches, that VLAN traffic can flow between them, and that one switch doesn't get interrupted when the peer switch connects, disconnects, or gets replaced. Ideally, each switch should have redundant power. If this is not possible, split the first switch to run off the first UPS or PDU, and the second switch to run off the other UPS and PDU. Ideally, setup...")
- 00:26, 28 March 2024 Nftables Router Tutorial (hist | edit) [17,365 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} This tutorial is meant to show how to use <span class="code">nftables</span> to build a router suitable for a home or boat. = References = *[Getting started with nftables https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/configuring_firewalls_and_packet_filters/getting-started-with-nftables_firewall-packet-filters] (required a Red Hat account). <span class="code"></span> {{footer}}")
- 21:45, 6 March 2024 M3 (hist | edit) [50 bytes] Digimer (talk | contribs) (Redirected page to Build an M3 Anvil! Cluster) Tag: New redirect
- 18:21, 29 February 2024 VNC over SSH (hist | edit) [9,091 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} This tutorial covers setting up VNC over SSH on EL8.3+ (RHEL 8, CentOS Stream 8, etc). and EL9. {{note|1=Make sure all <span class="code">admin</span> users are logged out (Gnome and terminal). There is a bug we don't know the source of yet that can break the ability to log into gnome.}} = VNC Server Setup = SSH into the Striker dashboard as the root user. <syntaxhighlight lang="bash"> dnf install tigervnc-server </syntaxhighlight> <syntaxh...")
- 17:50, 15 February 2024 Beta Testing (hist | edit) [1,171 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} Alteeve has distilled 18 years of experience into our new "Anvil! M3" Intelligent Availability® platform, and we're ready for beta-testers! It is unique in the high-availability space, monitoring and reacting to external and internal threats, autonomously. Beyond the usual hardware monitoring and recovery, the Anvil! fully handles power loss events and thermal excursions. It will perform automatic load...")
- 17:26, 15 December 2023 EL7 (hist | edit) [30 bytes] Digimer (talk | contribs) (Redirected page to Enterprise Linux) Tag: New redirect
- 17:26, 15 December 2023 EL8 (hist | edit) [30 bytes] Digimer (talk | contribs) (Redirected page to Enterprise Linux) Tag: New redirect
- 17:25, 15 December 2023 EL9 (hist | edit) [30 bytes] Digimer (talk | contribs) (Redirected page to Enterprise Linux) Tag: New redirect
- 17:25, 15 December 2023 Rocky Linux (hist | edit) [262 bytes] Digimer (talk | contribs) (Created page with "{{header}} The [https://rockylinux.org/ Rocky Linux] OS distro is project to build a binary-compatible alternative OS to Red Hat Enterprise Linux distribution. The goal is to ensure than any program designed to run on RHEL can run on AlmaLinux. {{footer}}")
- 17:24, 15 December 2023 AlmaLinux (hist | edit) [250 bytes] Digimer (talk | contribs) (Created page with "{{header}} The [https://almalinux.org/ AlmaLinux] OS distro is project is a project to build an OS that is compatible with Red Hat Enterprise Linux distribution. The goal is to ensure than any program designed to run on RHEL can run on AlmaLinux. {{footer}}")
- 17:28, 8 December 2023 Community Support (hist | edit) [206 bytes] Digimer (talk | contribs) (Created page with "{{header}} Mailing List: * [http://clusterlabs.org/mailman/listinfo/users ClusterLabs Users List] IRC:<br /> * <span class="code">#clusterlabs</span> on [https://web.libera.chat/ Libera Chat] {{footer}}")
- 17:10, 8 December 2023 Old Articles And Talks (hist | edit) [3,506 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} Most of these articles, tutorials and talks are old. They may have historical value, but generally are not to useful anymore. {|style="width: 98%; text-align: center; padding: 10px; border-spacing: 15px;" |- !class="blue_title" colspan="3"|How-Tos and Tutorials |- |style="wdith: 33%; border: 1px solid #dfdfdf;"| AN!Cluster Tutorial 2<br />How to build an ''Anvil!''<br />The Open Source, Highly Availability Virtual Machine Platform. using RHEL 6...")
- 02:34, 5 December 2023 Managing Networks With nmcli (hist | edit) [30,965 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} This article shows how to manage a network using just <span class="code">nmcli</span>. Key to this article, and to EL9 and above OSes, is that the old <span class="code">ifcfg-X</span> files are no longer used. They can be forced, but let's not hold on to the past like that. = Setting a Static IP on an Interface = The most basic step we'll start with is to simple assign a static IP address = Naming and Labelling Interfaces = In previous vers...")
- 18:05, 30 November 2023 Newsletter (hist | edit) [3,567 bytes] Digimer (talk | contribs) (Created page with "{{header}} Sign up for our technical tips, tricks and insights. <html> <div id="mc_embed_shell"> <link href="//cdn-images.mailchimp.com/embedcode/classic-061523.css" rel="stylesheet" type="text/css"> <style type="text/css"> #mc_embed_signup{background:#fff; false;clear:left; font:14px Helvetica,Arial,sans-serif; width: 600px;} /* Add your own Mailchimp form style overrides in your site stylesheet or in this style block. We recommend m...")
- 17:29, 16 November 2023 DR hosts (hist | edit) [21 bytes] Digimer (talk | contribs) (Redirected page to DR Hosts) Tag: New redirect
- 00:51, 16 November 2023 DR Host (hist | edit) [367 bytes] Digimer (talk | contribs) (Created page with "{{header}} In an M3 cluster, a DR host is an optional machine that acts as a disaster recovery host. Generally, this is a machine hosted as far away from the production Anvil! node as possible in the same building, or in another building on campus. Alternatively, the DR host can be in a different geographic locations. * Disaster Recovery Tasks {{footer}}")
- 00:47, 16 November 2023 DR host (hist | edit) [21 bytes] Digimer (talk | contribs) (Redirected page to DR Host) Tag: New redirect
- 03:49, 15 November 2023 Managing Storage Groups (hist | edit) [8,251 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} If you're unfamiliar with what a storage group is, see: * Storage Group Generally speaking, the Anvil! tries to auto-assemble storage groups for you. When all the hardware is the same size, this works pretty well. However, if the volume groups on two subnodes, or on a DR host differ, this may not work. In such cases, you can manually configure storage groups using the <span class="code">anvil-manage-storage-group</span> tool. {{note|1=There a...")
- 02:11, 15 November 2023 Migration Network (hist | edit) [1,442 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} '''MN''' is an acronym for "Migration Network". In M3 Anvil! clusters, this is a dedicated subnet used for server live migration traffic. Specifically; When a server needs to live-migrate between from one sub-node to the other, the RAM needs to be copied to the new host. The way this works is that, when a migration is initiated, the server is cloned to the target host, in a paused state. That is to say, no processing is allowed to happen, but the...")
- 22:59, 14 November 2023 Disaster Recovery Tasks (hist | edit) [12,452 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} {{Note|1=At this time, DR management is via the command line. DR management in the UI is planned.}} Disaster Recovery on M3 clusters provides a way to create a copy of a server on a remote "DR Host". These are machines that generally match the capabilities of the Anvil! node the server runs on, but that's not a requirement. Servers don't live migrate to the DR host, and the DR host itself is not a member of the subcluster. Simply speaking...")
- 03:28, 13 November 2023 Scancore (hist | edit) [9,669 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} {{warning|1=This is little more that raw notes, do not consider anything here to be valid or accurate at this time.}} = Scancore - The Decision Engine = Scancore is, at its core, a "decision engine". It was created as a way for Anvil! systems to make intelligent decisions based on data coming in from any number of places. It generates alerts for admins, so in this regard it is an alert and monitoring solution, but that is almost a secondary benef...")
- 20:42, 10 November 2023 Volume group (hist | edit) [20 bytes] Digimer (talk | contribs) (Redirected page to LVM#VG) Tag: New redirect
- 20:42, 10 November 2023 Storage Group (hist | edit) [543 bytes] Digimer (talk | contribs) (Created page with "{{header}} In an M3 Anvil! cluster, a "Storage Group" is a grouping of LVM volume groups across subnodes in an Anvil! node (and on DR hosts). When a new server is provisioned, the storage group selected will tell the node which volume groups on the subnodes to use when creating the server's new logical volumes. When a server is protected on a DR host, the host's volume group in the same storage group is used. In short, storage groups are a linked col...")
- 21:15, 9 November 2023 Md5sum (hist | edit) [573 bytes] Digimer (talk | contribs) (Created page with "{{header}} The program "md5sum" takes a file as an input for an 128-bit [https://en.wikipedia.org/wiki/MD5 MD5] calculation. In the context of Anvil! clusters, md5sum hashes can be used to confirm that the file stored in the cluster is byte-for-byte identical to the source the file was originally downloaded from or created. The Anvil! displays the md5sum's hash in the file browser so that you can confirm that the file matches what you expected. It's also used...")
- 16:19, 9 November 2023 Logical volume (hist | edit) [20 bytes] Digimer (talk | contribs) (Redirected page to LVM#LV) Tag: New redirect
- 19:13, 7 November 2023 MN (hist | edit) [31 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} '''MN''' is an acronym for "Migration Network". In Anvil! clustering, this is the optional (but recommended) subnet used for copying a server's RAM during a live-migration. This is generally connected back-to-back between the two subnodes in an Anvil! node. This is done to allow for maximum bandwidth and minimal latency to facilitate as fast as possible live migrations. {{footer}}")
- 20:21, 6 November 2023 SMT1500RM2U (hist | edit) [64 bytes] Digimer (talk | contribs) (Redirected page to Configuring APC SmartUPS with AP9630 Network Cards) Tag: New redirect
- 17:48, 6 November 2023 AP7900B (hist | edit) [39 bytes] Digimer (talk | contribs) (Redirected page to Configuring an APC AP7900) Tag: New redirect
- 17:47, 6 November 2023 APC (hist | edit) [248 bytes] Digimer (talk | contribs) (Created page with "{{header}} '''A'''merican '''P'''ower '''C'''onversion, or "[https://apc.com APC]", is a brand owned by the company [https://www.se.com/ Schneider Electric]. Their UPSes and switched PDUs are often used in Anvil! Clusters. {{footer}}")
- 00:40, 4 November 2023 The 2-Node Myth (hist | edit) [8,242 bytes] Digimer (talk | contribs) (Created page with "{{header}} A common argument in the availability world is "You need at least 3-nodes for availability clustering". This article aims to disprove that. To understand this argument we must first discuss two concepts in availability clustering; Quorum and fencing (also called 'stonith'). = Quorum = "Quorum" is a term used to define simple majority. Nodes in a cluster have a default value of '1'. Said mathematically, quorum is > 50%. When a cluster is quora...")
- 21:03, 2 November 2023 Alteeve (hist | edit) [73 bytes] Digimer (talk | contribs) (Created page with "{{header}} Oh hi there! [https://alteeve.com Alteeve] is us! {{footer}}")
- 20:46, 2 November 2023 CentOS Stream (hist | edit) [367 bytes] Digimer (talk | contribs) (Created page with "{{header}} [https://www.centos.org/centos-stream/ CentOS Stream] is an operating system, supported by Alteeve, managed by Red Hat as a free alternative to the RHEL operating system. It replaced the CentOS operating system, and now leads RHEL proper, acting as a platform for test and validate software before it lands in RHEL proper. {{footer}}")
- 20:44, 2 November 2023 PSU (hist | edit) [406 bytes] Digimer (talk | contribs) (Created page with "{{header}} A '''P'''ower '''S'''upply '''U'''nit, or "PSU", is the device that converts mains power into the various voltages needed inside of a computer, switch or other electronic device. In Anvil! clusters, most devices have redundant power supplies. This allows a device to be powered by two different power sources so that the loss of one power rail doesn't cause the device to shut down. {{footer}}")
- 16:17, 22 October 2023 Anvil! Networking (hist | edit) [16,350 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} The Anvil! Cluster implements four main network types, each of which there could be one or more of. = Anvil! Networks = {| class="wikitable" !style="white-space:nowrap; text-align:center;"|Network Name !style="white-space:nowrap; text-align:center;"|Prefix !style="white-space:nowrap; text-align:center;"|Subnet !style="white-space:nowrap; text-align:center;"|Used By !style="white-space:nowrap; text-align:center;"|Description |- !style="white-space...")
- 16:17, 22 October 2023 Build an M3 Anvil! Cluster (hist | edit) [108,253 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} {{warning|1=This is a work in progress document. While this header is here, please do not consider this article complete or accurate.}} First off, what is an Anvil!? In short, it's a system designed to keep servers running through an array of failures, without need for an internet connection. Think about ship-board computer systems, remote research facilities, factories without dedicated IT staff, un-staffed branch offices and so forth. Where m...")
- 16:15, 22 October 2023 What is an Anvil! and why do I care? (hist | edit) [138,456 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} The most basic answer to this question is; * An ''Anvil!'' is one of the most resilient platforms for running servers on. If you have a server that, if it failed, would really hurt, you probably want to put it on an ''Anvil!'' system. Now, the longer answer. = Overview = The Anvil! platform is an Intelligent Availability platform. This means it has the following core features; * It proactively protects hosted servers. It predicts failures where...")