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- 20:24, 8 September 2023 Node (hist | edit) [1,050 bytes] Digimer (talk | contribs) (Created page with "{{header}} An Anvil! node is a fully redundant host for servers in an Anvil! cluster. Each node is made from a matched pair of subnodes that fully replicate each other. Anvil! nodes can have very different capacity and performance from each other, if you wish. The resources available on a node sets the limit of the servers that can run on that given node. So you may well design a subset of nodes to be resource rich in storage or processing performance, while o...")
- 19:41, 8 September 2023 NFS (hist | edit) [320 bytes] Digimer (talk | contribs) (Created page with "{{fs_header}} Network File System, or NFS, is a way of sharing data from the host OS over the network, such that it can be read from or written to. NFS is common in Linux based operating systems. See: http://en.wikipedia.org/wiki/Network_File_System_(protocol)<br /> See: http://nfs.sourceforge.net/<br /> {{footer}}")
- 19:39, 8 September 2023 SMB (hist | edit) [247 bytes] Digimer (talk | contribs) (Created page with "{{header}} SMB, or "Samba", is a way of sharing data from the host OS over the network, such that it can be read from or written to. SMB is very popular in Windows environments. See: http://en.wikipedia.org/wiki/Server_Message_Block {{footer}}")
- 19:38, 8 September 2023 NAS (hist | edit) [335 bytes] Digimer (talk | contribs) (Created page with "{{header}} '''NAS''' is an acronym for '''''N'''etwork '''A'''ttached '''S'''torage''. It differs from SAN in that NAS disk space is generally made available at the file system level using SMB or NFS. Also, it tends to be build using much simpler technology with lower bandwidth, commodity networking hardware. {{footer}}")
- 19:37, 8 September 2023 LUN (hist | edit) [195 bytes] Digimer (talk | contribs) (Created page with "{{header}} A "Logical Unit Number", or "LUN", is an identifier used to access a unit of storage in a SAN. See: [https://en.wikipedia.org/wiki/Logical_unit_number] {{footer}}")
- 19:16, 8 September 2023 Storage Replication (hist | edit) [3,675 bytes] Digimer (talk | contribs) (Created page with "{{header}} In the Anvil! cluster, everything has to be fully redundant, and all components need to be electrically and mechanically isolated. This is required so that anything can be taken offline without a maintenance window. In traditional clusters, shared storage is provided by a SAN. These are devices that share raw storage (called LUNs) to provide the backing storage for hosted servers. SANs typical have thorough redundancy; Dual controllers, dual powe...")
- 00:29, 8 September 2023 Live Migration (hist | edit) [2,070 bytes] Digimer (talk | contribs) (Created page with "{{header}} "Live migration" is the process where a server that is actively running on an Anvil! subnode can be moved to the peer subnode, without interrupting it or stopping it. This can happen if, for example, Scancore detects that the active subnode is developing a hardware fault. To minimize the risk of service interruption, the Anvil! will migrate to the peer subnode as a preventative measure to protect your servers. The way this works is that a "pa...")
- 19:09, 20 August 2023 Alteeve (hist | edit) [73 bytes] Digimer (talk | contribs) (Created page with "{{header}} Oh hi there! [https://alteeve.com Alteeve] is us! {{footer}}")
- 19:09, 20 August 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}}")
- 19:07, 20 August 2023 CentOS (hist | edit) [406 bytes] Digimer (talk | contribs) (Created page with "{{header}} The [http://centos.org CentOS] project was a project designed to build a binary equivalent replacement for the commercial Red Hat Enterprise Linux distribution. The only changes the CentOS distribution is in changing branding and images. Red Hat purchased the organization behind the CentOS project and subsequently ended the project, replacing it with CentOS Stream. {{footer}}")
- 19:05, 20 August 2023 Rocky (hist | edit) [220 bytes] Digimer (talk | contribs) (Created page with "{{header}} [https://rockylinux.org/ Rocky Linux] was created to replace the tradition CentOS operating system. Specifically, it's designed to be binary compatible with the RHEL operating system. {{footer}}")
- 19:04, 20 August 2023 RHEL (hist | edit) [383 bytes] Digimer (talk | contribs) (Created page with "{{header}} RHEL is an acronym for '''R'''ed '''H'''at '''E'''nterprise '''L'''inux, their server-class commercial Linux distribution. It's source is available under the terms of the GNU Public License (GPL). Other distributions have been based on this release, often changing only the Red Hat branding. Perhaps the most popular RHEL-based distribution is CentOS. {{footer}}")
- 19:02, 20 August 2023 Microsoft (hist | edit) [149 bytes] Digimer (talk | contribs) (Created page with "{{header}} Microsoft Software, authors of the MS-DOS and Windows operating systems and several partition and file system formats. {{footer}}")
- 19:01, 20 August 2023 Minix (hist | edit) [217 bytes] Digimer (talk | contribs) (Created page with "{{header}} POSIX-Compliant micro kernel operating system created by [http://en.wikipedia.org/wiki/Andrew_S._Tanenbaum Andrew S. Tanenbaum] used largely for teaching operating system theory. {{footer}}")
- 19:01, 20 August 2023 OS X (hist | edit) [141 bytes] Digimer (talk | contribs) (Created page with "{{header}} OS X is the current operating system used by Apple computers. It is a derivative of FreeBSD (??) UNIX. {{footer}}")
- 19:00, 20 August 2023 Apple (hist | edit) [106 bytes] Digimer (talk | contribs) (Created page with "{{header}} Apple Computer Corporation is a long-time player in the personal computer segment. {{footer}}")
- 18:59, 20 August 2023 BSD (hist | edit) [272 bytes] Digimer (talk | contribs) (Created page with "{{header}} BSD is an acronym for the '''''B'''erkeley '''S'''cience '''D'''epartment'' at University of California, Berkeley. It is also often used to describe on of several UNIX-derivative, free operating systems based on the BSD Unix variant. {{footer}}")
- 18:58, 20 August 2023 SUSE (hist | edit) [107 bytes] Digimer (talk | contribs) (Created page with "{{header}} SUSE was originally a German Linux distribution and is now owned by Novell. {{footer}}")
- 18:57, 20 August 2023 NetWare (hist | edit) [81 bytes] Digimer (talk | contribs) (Created page with "{{header}} Novell's proprietary network operating system. {{footer}}")
- 18:57, 20 August 2023 SCO (hist | edit) [166 bytes] Digimer (talk | contribs) (Created page with "{{header}} Originally '''''S'''anta '''C'''ruz '''O'''perations'' (Old-SCO). Now has limited presence in the Unix market and is primarily a patent house. {{footer}}")
- 18:56, 20 August 2023 Novell (hist | edit) [84 bytes] Digimer (talk | contribs) (Created page with "{{header}} Novell, creators of NetWare and owner of SuSe Linux. {{footer}}")
- 18:56, 20 August 2023 HP-UX (hist | edit) [62 bytes] Digimer (talk | contribs) (Created page with "{{header}} HP-UX is HP's variant of Unix. {{footer}}")
- 18:56, 20 August 2023 HP (hist | edit) [243 bytes] Digimer (talk | contribs) (Created page with "{{header}} HP, whose full name is '''''H'''ewlett-'''P'''ackard Development Company, L.P.'', is a major player in the server, workstation and end-user computer market. They also have their own variant of Unix called HP-UX. {{footer}}")
- 18:55, 20 August 2023 IRIX (hist | edit) [54 bytes] Digimer (talk | contribs) (Created page with "{{header}} SGI's version of Unix. {{footer}}")
- 18:54, 20 August 2023 SGI (hist | edit) [272 bytes] Digimer (talk | contribs) (Created page with "{{header}} Formerly ''Silicon Graphics, Inc.'', now known as simple '''SGI'''. They provide high-end workstations and servers, most often to customers running graphically intensive applications. They also offer their own variant on Unix known as IRIX. {{footer}}")
- 18:52, 20 August 2023 AIX (hist | edit) [181 bytes] Digimer (talk | contribs) (Created page with "{{header}} AIX is IBM's flavour of Unix. It is falling out of favour within IBM as it shifts it's focus to Linux. See: http://en.wikipedia.org/wiki/IBM_AIX {{footer}}")
- 18:52, 20 August 2023 IBM (hist | edit) [218 bytes] Digimer (talk | contribs) (Created page with "{{header}} '''IBM''', which is short for '''''I'''nternational '''B'''usiness '''M'''achines'', is a vendor of AIX Unix and business-grade computer equipment. See: http://en.wikipedia.org/wiki/Ibm {{footer}}")
- 18:51, 20 August 2023 UNIX (hist | edit) [722 bytes] Digimer (talk | contribs) (Created page with "{{header}} Unix is the oldest operating system still in use today. The term "Unix" is often used to describe POSIX compliant operating systems in general. There are several commercial Unix variants like IBM's AIX, SGI's IRIX and HP's HP-UX. Currently there is a dispute between Novell and SCO as to who owns the Unix source code. There are several open source derivatives based on BSD Unix like FreeBSD, NetBSD and OpenBSD...")
- 18:49, 20 August 2023 Fedora (hist | edit) [97 bytes] Digimer (talk | contribs) (Created page with "{{header}} Fedora Core is a community driven, Red Hat-guided Linux distribution. {{footer}}")
- 18:48, 20 August 2023 Red Hat (hist | edit) [225 bytes] Digimer (talk | contribs) (Created page with "{{header}} Red Hat is a brand of IBM and the developer of a popular commercial Linux distribution called 'Red Hat Enterprise Linux' and manages the fully open-source, community driven Fedora distribution. {{footer}}") originally created as "Redhat"
- 18:45, 20 August 2023 OS (hist | edit) [320 bytes] Digimer (talk | contribs) (Created page with "{{header}} An operating system is a piece of software that runs on a given hardware platform and allows supporting programs to be run on it. Linux, UNIX (of which there are several flavours), Microsoft's Windows and Apple's OS X are some common modern-days examples of operating systems. {{footer}}")
- 18:45, 20 August 2023 POSIX (hist | edit) [160 bytes] Digimer (talk | contribs) (Created page with "{{header}} '''POSIX''' is an acronym for '''''P'''ortable '''O'''perating '''S'''ystem '''I'''nterface''. See: http://en.wikipedia.org/wiki/POSIX {{footer}}")
- 18:44, 20 August 2023 Linux (hist | edit) [349 bytes] Digimer (talk | contribs) (Created page with "{{header}} Linux is a POSIX compliant open-source operating system created by Linux Torvalds. It is currently developed by a very large number of developers and forms the foundation for many Linux distributions, including Debian, Ubuntu, Redhat and Fedora Core, among '''many''' others. See: http://en.wikipedia.org/wiki/Linux {{footer}}")
- 18:43, 20 August 2023 ISO (hist | edit) [861 bytes] Digimer (talk | contribs) (Created page with "{{header}} '''ISO''' is an acronym for '''I'''nternational '''O'''rganization for '''S'''tandardization. In computing, '''ISO''' is most often used to describe the [http://en.wikipedia.org/wiki/ISO_9660 ISO 9660] standard describing data storage on optical media like CD and DVD disks. In turn, the term "iso file" usually describes an archive designed to be written to an optical disk. Some operating systems, like Linux, allow for these archives to be "mounted" and th...")
- 18:38, 20 August 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...")
- 18:27, 16 August 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 [Schneider Electric https://www.se.com/]. Their UPSes and switched PDUs are often used in Anvil! Clusters. {{footer}}")
- 03:19, 16 August 2023 MAC (hist | edit) [474 bytes] Digimer (talk | contribs) (Created page with "{{header}} MAC is an acronym for '''M'''edia '''A'''ccess '''C'''ontrol. This is a 32 bit hexadecimal identifying string that is unique to every network device. This address is used in networking for locating a device when it does not have an IP address. MAC addresses are not routeable, thus, MAC addresses are only useful on the subnet the device is on. For more information, please see the [http://en.wikipedia.org/wiki/MAC_address wikipedia] entry. {{footer}}")
- 02:56, 16 August 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...")
- 02:55, 16 August 2023 Bit (hist | edit) [128 bytes] Digimer (talk | contribs) (Created page with "{{header}} A 'Bit' is a single Base-2 'BInary DigiT'; 0 or 1. See 'Binary' for more information. {{footer}}")
- 02:54, 16 August 2023 ECC (hist | edit) [500 bytes] Digimer (talk | contribs) (Created page with "{{header}} [https://en.wikipedia.org/wiki/Error-correcting_code Error correcting code] is a mechanism for transmitting additional, redundant data that allows for the detection of errors. In most cases, ECC allows the automatic correction of single-byte errors without requiring the corrupted data being retransmitted. It is often found in enterprise-grade memory, often referred to as "ECC RAM". The same technology is used in many different system components, like sto...")
- 02:52, 16 August 2023 FBU (hist | edit) [633 bytes] Digimer (talk | contribs) (Created page with "{{header}} '''F'''lash '''B'''ack '''U'''p, or FBU, is a a technology used to protect cached data on a RAID controller. Specifically, if power is lost while disk writes are still in a RAID controller's memory, FBU provides sufficient power, generally via a capacitor bank, to keep the controller alive long enough to copy the contents of the cache to an on-board solid-state storage device. When power is restored to the system, the RAID controller will see this cached...")
- 02:41, 16 August 2023 LSI SafeStore (hist | edit) [25,006 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} This covers how to use LSI's [http://www.lsi.com/products/raid-controllers/pages/megaraid-safestore-software.aspx SafeStore] controller option along with Seagate [http://www.seagate.com/ca/en/tech-insights/protect-data-with-seagate-secure-self-encrypting-drives-master-ti/ Self-Encrypting Drives] (SED). This provides protection of drive contents at rest and enables [http://www.seagate.com/ca/en/tech-insights/data-protection-instant-secure-erase-master-ti...")
- 02:40, 16 August 2023 SAS (hist | edit) [159 bytes] Digimer (talk | contribs) (Created page with "{{header}} [https://en.wikipedia.org/wiki/Serial_Attached_SCSI SAS] is an interface standard used principally by enterprise-grade storage devices. {{footer}}")
- 02:40, 16 August 2023 SATA (hist | edit) [148 bytes] Digimer (talk | contribs) (Created page with "{{header}} [https://en.wikipedia.org/wiki/Serial_ATA SATA] is an interface standard used principally by consumer-grade storage devices. {{footer}}")
- 02:37, 16 August 2023 Boolean Algebra (hist | edit) [3,613 bytes] Digimer (talk | contribs) (Created page with "{{header}} ''' Boolean Algebra ''' These are the various 'logic gates' used to create all computer logic. At their core, they are all made up of the 'NAND' gate. = Logic Gates = : Logic gates can be represented by showing two input lines and one output line followed by a table showing what electrical/binary state the inputs must be in to effect a certain output state. In these 'Truth Tables', the two inputs are represented as inputs 'A' and 'B', and the output is...")
- 02:36, 16 August 2023 Write-back caching (hist | edit) [2,012 bytes] Digimer (talk | contribs) (Created page with "{{header}} Write-back caching is a technology used in disk storage to improve performance. It works by providing an amount of high-speed, volatile memory used to store data destined for non-volatile storage on relatively slow hard drives or solid state drives. Write-back caching is particularly useful on traditional platter-based hard drives and RAID arrays where highly random write access is expected. It allows for writes to be buffered, masking the performance lo...")
- 02:34, 16 August 2023 MN (hist | edit) [403 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}}")
- 02:27, 16 August 2023 SN (hist | edit) [354 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} '''SN''' is an acronym for "Storage Network". In Anvil! clustering, this is the subnet used for storage network traffic. Specifically, this is used for the DRBD replication traffic. Given the large amount of bandwidth needed for replicated storage, it is generally a good idea to use this network for no other purpose. {{footer}}")
- 02:26, 16 August 2023 BCN (hist | edit) [324 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} '''BCN''' is an acronym for "Back-Channel Network". In Anvil! clustering, this is the subnet used for inter-node cluster communication as well as other non-storage related cluster network traffic. It should be completely isolated from any networks exposed to the internet for security reasons. {{footer}}")
- 02:24, 16 August 2023 IFN (hist | edit) [464 bytes] Digimer (talk | contribs) (Created page with "{{howto_header}} '''IFN''' is an acronym for "Internet-Facing Network" (or "Intranet-Facing Network"). In Anvil! clustering, this is the subnet used for all untrusted network traffic. Generally, as the name implies, this network has access to the Internet or other untrusted networks. No cluster or storage related traffic should use this network. This is the network used for all traffic to and from the servers hosted on the Anvil! cluster nodes. {{footer}}")