DOCSLIB.ORG

Porovnání Vlastností a Výkonnosti NAS

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Porovnání Vlastností a Výkonnosti NAS Bankovní institut vysoká škola Praha Katedra informatiky a kvantitativních metod Porovnání vlastností a výkonnosti NAS Diplomová práce Autor: Bc. Daniel Bárta Informační technologie a management Vedoucí práce: Ing. Martin Uher Praha Duben, 2015 Prohlášení: Prohlašuji, že jsem diplomovou práci zpracoval samostatně a v seznamu uvedl veškerou použitou literaturu. Svým podpisem stvrzuji, že odevzdaná elektronická podoba práce je identická s její tištěnou verzí, a jsem seznámen se skutečností, že se práce bude archivovat v knihovně BIVŠ a dále bude zpřístupněna třetím osobám prostřednictvím interní databáze elektronických vysokých prací. V Praze, dne 29. 4. 2015 Daniel Bárta Poděkování Děkuji vedoucímu práce a své rodině za podporu, kterou mi v době psaní práce projevovali. Anotace Diplomová práce má za cíl posoudit možnosti nasazení předních zástupců open source NAS distribucí v sektoru malých a středních firem. Na cestě k dosažení vytyčeného cíle jsou vysvětleny důležité pojmy a součásti systémů NAS, které jsou následně aplikovány na posouzení možností využití a výkonosti vybraných distribucí. Cíle je úspěšně dosaženo a poznatky z praktické části jsou shrnuty v závěru práce. Klíčová slova: NAS, síťová úložiště, sdílení dat, RAID, ZFS, SMB, iSCSI Annotation This thesis aims to judge posibilities of open source NAS distributions deployment in small business sector. Alnog the way to thesis target are important parts of NAS systems explained and this knowledge is then used for evaluation and benchmarking of chosen NAS distributions. Target of thesis is achieved by summarising facts from practical part at the end of this thesis. Key words: NAS, network attached storage, data sharing, RAID, ZFS, SMB, iSCSI OBSAH Úvod ........................................................................................................................................... 7 1 Historie NAS a diskových polí .............................................................................................. 8 2 Možnosti přístupu ................................................................................................................ 10 2.1 Blokový přístup .......................................................................................................... 10 2.2 Souborový přístup ...................................................................................................... 12 2.3 Přístup klientských zařízení ....................................................................................... 13 2.4 Shrnutí možností přístupu .......................................................................................... 15 3 Součásti NAS ....................................................................................................................... 16 3.1 Procesor (CPU) .......................................................................................................... 16 3.2 Operační paměť (RAM) ............................................................................................. 16 3.3 Pevné disky ................................................................................................................ 17 3.4 Řadiče pevných disků ................................................................................................ 21 3.5 RAID (Redundant Array of Inexpensive/Independent Disks) ................................... 22 3.6 Souborové systémy .................................................................................................... 29 3.7 Síťové karty (NIC) ..................................................................................................... 34 3.8 Operační systémy používané v systémech NAS ........................................................ 34 4 Protokoly přístupu ................................................................................................................ 36 4.1 CIFS/SMB ................................................................................................................. 37 4.2 NFS (Network File System) ...................................................................................... 39 4.3 iSCSI .......................................................................................................................... 40 4.4 Ostatní protokoly ....................................................................................................... 42 4.5 Optimalizace výkonu NAS ........................................................................................ 44 4.6 Shrnutí protokolů přístupu ......................................................................................... 49 5 Parametry testu .................................................................................................................... 50 5.1 Požadavky malých a středních firem ......................................................................... 50 5 5.2 Přehled vybraných NAS ............................................................................................ 52 5.3 Testovací prostředí ..................................................................................................... 52 5.4 Metodika testování výkonosti vybraných NAS ......................................................... 53 6 Posouzení možností nasazení NAS ...................................................................................... 57 6.1 FreeNAS .................................................................................................................... 57 6.2 NAS4Free .................................................................................................................. 61 6.3 OpenFiler ................................................................................................................... 64 6.4 OpenMediaVault ........................................................................................................ 68 6.5 Shrnutí možností nasazení posuzovaných systémů NAS .......................................... 71 7 Test výkonosti NAS a zhodnocení....................................................................................... 74 7.1 Testy propustnosti TCP/IP stacku (iperf3) ................................................................ 74 7.2 Testy přenosové rychlosti CIFS/SMB ....................................................................... 77 7.3 Zhodnocení testu výkonosti ....................................................................................... 81 Závěr ......................................................................................................................................... 82 Citovaná literatura .................................................................................................................... 83 Seznam zkratek ......................................................................................................................... 91 Seznam tabulek ......................................................................................................................... 93 Seznam obrázků ........................................................................................................................ 94 Seznam grafů ............................................................................................................................ 95 6 ÚVOD Neustálá tvorba nových dat klade čím dál tím větší nároky na jejich ukládání a dostupnost. Sdílení dat se stalo fenoménem začátku jednadvacátého století a firmy bez rozdílu velikosti se musí s tímto problémem vyrovnat. Firemní data je potřeba bezpečně uchovávat, ale současně zajistit, aby bylo možné k nim přistupovat z mnoha rozličných zařízení, včetně těch mobilních. Téma datových úložišť je značně rozsáhlé proto jsou vysvětleny rozdíly mezi jejich typy a dále se práce věnuje pouze systémům NAS pro prostředí malých a středních firem. Většinou se jedná o firmy mající již nějakou infrastrukturu, které potřebují vyřešit konkrétní potřeby v oblasti ukládání dat. Charakteristickým znakem především malých, ale i některých středních firem jsou omezené zdroje a to jak finanční tak lidské. V malých firmách není nic neobvyklého, když úlohu správců počítačových systémů zastávají pracovníci na jiných pozicích, nebo jsou tyto služby outsourcovány. Je tedy kladen důraz na jednoduchost ovládání datových úložišť a to jak z pohledu software, tak i z pohledu případného rozšíření hardware. Cílem této práce je posoudit možnosti nasazení a výkonnost předních zástupců open source NAS distribucí v sektoru malých a středních firem. Práce by tedy mohla firmám posloužit jako zdroj informací, které z dnešních předních systémů NAS mohou ve svém prostředí nasadit. Práce je dělena na několik teoretických částí, kde je čtenář seznámen se základními koncepty diskových úložišť, hlavními součástmi, ze kterých se NAS skládají a přístupovými protokoly využívanými k přístupu. Po načerpání dostatečného množství informací pro orientaci v problematice, jsou představeny vybrané open source NAS distribuce a definovány kritéria, podle kterých se budou posuzovat a testovat. První praktická část se zabývá posouzením možnosti nasazení vybraných distribucí NAS v sektoru malých a středních firem, kdy detailně popisuje jejich funkce, instalaci, prvotní konfiguraci a dalších zajímavostí, které obsahují. Ke každé distribuci je napsán souhrn a zhodnocení do jaké míry splňuje vytyčená kritéria. Druhá praktická část se pak zabývá výkonnostními testy vybraných distribucí a je zakončena hodnocením výsledků spolu s doporučením. 7 1 HISTORIE NAS A DISKOVÝCH POLÍ Zpracovávání
Load more

Recommended publications
  • Open Source Solutions for Building Your Own Storage Area Network and Network Attached Storage
    Open Source Solutions for Building Your Own Storage Area Network and Network Attached Storage Author, Balakrishnan Subramanian A Data Science Foundation White Paper May 2020 --------------------------------------------------- Data Science Foundation Data Science Foundation, Atlantic Business Centre, Atlantic Street, Altrincham, WA14 5NQ Tel: 0161 926 3641 Email: [email protected] Web: www.datascience.foundation Registered in England and Wales 4th June 2015, Registered Number 9624670 www.datascience.foundation Copyright 2016 - 2017 Data Science Foundation 1. INTRODUCTION Generally, Storage solutions can be grouped into following four categories: SoHo NAS systems, Cloud-based/object solutions, Microsoft Storage Server solutions, Enterprise NAS (Networked Attached Storage) and Storage Area Network (SAN) solutions. Enterprise NAS and SAN solutions are generally closed systems offered by traditional vendors like EMC and NetApp with a very large price tag, so many businesses are looking at Open Source solutions to meet their needs. This is a collection of links and brief descriptions of Open Source storage solutions currently available. Open Source of course means it’s free to use and modify, however some projects have do commercially supported versions as well for enterprise customers who require it. 1. Factors for choosing Storage Solutions When you are in the need of Storage solutions for managing your own infrastructure in your private Data Center, there are many offerings but selecting the right one depends upon your requirement. Factors involved in selecting a Storage type Budget Type of Data that you want to store Scaling concerns and Usage pattern In this article, we will be discussing two different methods (i.e. NAS and SAN), these two methods define the Structure of the storage, it is important to choose the right one based upon your use case and type of data.
    [Show full text]
  • Github: a Case Study of Linux/BSD Perceptions from Microsoft's
    1 FLOSS != GitHub: A Case Study of Linux/BSD Perceptions from Microsoft’s Acquisition of GitHub Raula Gaikovina Kula∗, Hideki Hata∗, Kenichi Matsumoto∗ ∗Nara Institute of Science and Technology, Japan {raula-k, hata, matumoto}@is.naist.jp Abstract—In 2018, the software industry giants Microsoft made has had its share of disagreements with Microsoft [6], [7], a move into the Open Source world by completing the acquisition [8], [9], the only reported negative opinion of free software of mega Open Source platform, GitHub. This acquisition was not community has different attitudes towards GitHub is the idea without controversy, as it is well-known that the free software communities includes not only the ability to use software freely, of ‘forking’ so far, as it it is considered as a danger to FLOSS but also the libre nature in Open Source Software. In this study, development [10]. our aim is to explore these perceptions in FLOSS developers. We In this paper, we report on how external events such as conducted a survey that covered traditional FLOSS source Linux, acquisition of the open source platform by a closed source and BSD communities and received 246 developer responses. organization triggers a FLOSS developers such the Linux/ The results of the survey confirm that the free community did trigger some communities to move away from GitHub and raised BSD Free Software communities. discussions into free and open software on the GitHub platform. The study reminds us that although GitHub is influential and II. TARGET SUBJECTS AND SURVEY DESIGN trendy, it does not representative all FLOSS communities.
    [Show full text]
  • Truenas® 11.3-U5 User Guide
    TrueNAS® 11.3-U5 User Guide Note: Starting with version 12.0, FreeNAS and TrueNAS are unifying (https://www.ixsystems.com/blog/freenas- truenas-unification/.) into “TrueNAS”. Documentation for TrueNAS 12.0 and later releases has been unified and moved to the TrueNAS Documentation Hub (https://www.truenas.com/docs/). Warning: To avoid the potential for data loss, iXsystems must be contacted before replacing a controller or upgrading to High Availability. Copyright iXsystems 2011-2020 TrueNAS® and the TrueNAS® logo are registered trademarks of iXsystems. CONTENTS Welcome .................................................... 8 Typographic Conventions ................................................ 9 1 Introduction 10 1.1 Contacting iXsystems ............................................... 10 1.2 Path and Name Lengths ............................................. 10 1.3 Using the Web Interface ............................................. 12 1.3.1 Tables and Columns ........................................... 12 1.3.2 Advanced Scheduler ........................................... 12 1.3.3 Schedule Calendar ............................................ 13 1.3.4 Changing TrueNAS® Settings ...................................... 13 1.3.5 Web Interface Troubleshooting ..................................... 14 1.3.6 Help Text ................................................. 14 1.3.7 Humanized Fields ............................................ 14 1.3.8 File Browser ................................................ 14 2 Initial Setup 15 2.1 Hardware
    [Show full text]
  • Nas Software
    Nas software click here to download “I heard about FreeNAS at a conference and realized it was an immediate necessity for one of my clients. They had an existing NAS system that was not being. The Opensource Linux NAS software is light Linux Distros but enough power to handle your storage problem. You can build your own NAS. XigmaNAS is the easiest and quickest way to install an Open Source free NAS server. From home NAS to enterprise network storage, XigmaNAS is trusted by. Build and manage your own Linux & BTRFS powered advanced NAS and Cloud Storage is an essential part of many creative software and hardware projects. The following are four of the best NAS solutions for Linux that do the job software, so you can control and name all NAS-connected drives on. Here is a list of some best free and open source NAS Operating system available on the Internet and the way to backup Blu-ray/DVD/Video to. Related Article ➤ 9 Free Self Hosted Cloud Storage Software For Home network-attached storage (NAS) OS software for small businesses. Network-attached storage (NAS) is a file-level computer data storage server connected to a computer network providing data access to a heterogeneous group of clients. NAS is specialized for serving files either by its hardware, software. Inspired by the television show, Top Gear, I'd really like to maintain my own “Big Board” of NAS software where I rank them against each other. I recently bought a Dell T30, that i want to use as a NAS, Plex server, private cloud and file server.
    [Show full text]
  • Truenas Recommendations for Veeam® Backup & Replication™
    TRUENAS RECOMMENDATIONS FOR VEEAM® BACKUP & REPLICATION™ [email protected] CONTENTS 1. About this document 2. What is needed? 3. Certified hardware 4. Sizing considerations 5. Advantages for using TrueNAS with Veeam 6. Set up TrueNAS as a Veeam repository 7. Performance tuning for Veeam Backup & Replication 8. Additional references Appendix A: Setup an iSCSI share in TrueNAS and mount in Windows Appendix B: Setup SMB (CIFS) share for your Veeam Repository TrueNAS Recommendations for Veeam Backup & Replication 1 ABOUT THIS DOCUMENT TrueNAS Unified Storage appliances are certified Veeam Ready and can be used to handle demanding backup requirements for file and VM backup. These certification tests measure the speed and effectiveness of the data storage repository using a testing methodology defined by Veeam for Full Backups, Full Restores, Synthetic Full Backups, and Instant VM Recovery from within the Veeam Backup & Replication environment. With the ability to seamlessly scale to petabytes of raw capacity, high-performance networking and cache, and all-flash options, TrueNAS appliances are the ideal choice for Veeam Backup & Replication repositories large and small. This document will cover some of the best practices when deploying TrueNAS with Veeam, specific considerations users must be aware of, and some tips to help with performance. The focus will be on capabilities native to TrueNAS, and users are encouraged to also review relevant Veeam documentation, such as their help center and best practices for more information about using
    [Show full text]
  • Xigmanas Tutorial.Pdf
    XigmaNAS Tutorial Introduction The original FreeNAS Project was on SourceForge before it got taken over by ixSystems selling their TrueNAS range based on it. FreeNAS v0.7 Open Source was forked as NAS4Free and due to copyright issues, it is now named XigmaNAS. Build, Configure and Maintain a XigmaNAS Network Attached Storage appliance XigmaNAS v12.1.0.4 Build 7664 dated 2020-07-15 Video of installation in a KVM - 3.7 MB, 3:39 mins Video of XigmaNAS First Boot - 3.2 MB, 3:41 mins Enabling root login by SSH into XigmaNAS - GUI settings - this will avoid errors like no supported authentication methods available when logging in by PuTTY or WinSCP (Portable) Virtualisation KVM Install Hardware for installation in a KVM Hardware after installation KVM Options Defaults Default IP Address: 192.168.1.250 Default Access Credentials (Mode: username / password): CLI/SSH: root / xigmanas Web: admin / xigmanas Preferred Hardware Use Gigabit Intel LAN NIC model based on XigmaNAS version (date of release and kernel support for native drivers) Atleast 4 GB RAM advised for 64 bit installs Embedded installs on USB advised for general use 2/4 GB USB drives for old systems (< 2010) on embedded 32 bit installs Atleast 8 GB USB Drives for modern systems on 64 bit installs Choice of Hard Disks with 4K sectors (not surveillance HDDs) Tested Hardware Mainboards ASUS PRIME B365M-C - Intel® I219V LAN Notes During install from USB 3 socket, graceful degrade to USB 2 occurs if the device is not USB 3 compliant. During usage of the embedded USB device, no such degrade occurs and the device must be plugged into it's appropriate socket.
    [Show full text]
  • Ixsystems Truenas Product Family
    iXsystems TrueNAS Product Family Platforms FreeNAS FreeNAS TrueNAS TrueNAS TrueNAS TrueNAS Mini Certified X10 X20 M40 M50 Typical User SoHo Small/Med Office Business Essential/Mission-Critical Enterprise Form Factor Mini Tower 1U, 2U, 4U 2U 4U High Availability No Yes, Hot Swappable Storage Controllers (1 or 2) Storage Architecture HDD + Optional R/W Cache HDD + R/W Cache or SSD only Storage Technology SATA SATA/SAS SAS SAS SAS, NVMe Read Cache SATA SSD SAS3 SSD NVMe Technology Read Cache Size 480GB 800 GB 400 GB 800 GB 2.4 TB 12.5 TB NVMe Write Cache SATA SSD SATA SSD SAS3 SSD NVDIMM Technology vCPU per Controller 2-8 12-64 12 12 20 40 RAM per Controller 8-64 GB 32-256 GB 32 GB 64 GB 128 GB 256 GB-1.5 TB Expansion Shelves 0 By Request 2 2 2 12 Max Physical Storage 80 TB 240 TB 500 TB 1 PB 2 PB 10 PB Max Effective Storage* 200 TB 600 TB 1.2 PB 2.5 PB 5 PB 25 PB Max Ethernet Speed 2x10 GbE 2x40 GbE 2x10 GbE 4x10 GbE 2x40 GbE 4x100 GbE Fibre Channel (option) Not Available 8 Gb 4x16 Gb 4x32 Gb Software Enterprise File System OpenZFS - File, Block, and Object Services - Open Source Data Management Snapshots, Replication, Rollback, Clones, Encryption, Mirroring, RAIDZ1/Z2/Z3 Data Reduction Thin Provisioning, Compression, Clones, Deduplication Access Protocols NFSv3, NFSv4, SMB, AFP, iSCSI, HTTP/WebDAV, FTP, S3 Management IPMI, WebUI, REST API, SSH, SNMP, LDAP, Kerberos, Active Directory Protocols Application Application Plugins vCenter plugin, OpenStack Cinder driver Integration Software Clients: Unix, Linux, Windows, + Enterprise Software: VMware, OpenStack, Citrix, Veeam Compatibility FreeBSD, MacOS Support Hardware Warranty 1 to 3 Years 3 to 5 Years Up to 5 Years, Worldwide, Advanced Parts Replacement Deployment Services Self-deployment Included Deployment and Tuning, Proactive Monitoring option Software Support Community Worldwide, up to 24x365, Phone or email Software Updates Included Included-Zero downtime upgrades with HA * Compression rates vary by application.
    [Show full text]
  • Kratka Povijest Unixa Od Unicsa Do Freebsda I Linuxa
    Kratka povijest UNIXa Od UNICSa do FreeBSDa i Linuxa 1 Autor: Hrvoje Horvat Naslov: Kratka povijest UNIXa - Od UNICSa do FreeBSDa i Linuxa Licenca i prava korištenja: Svi imaju pravo koristiti, mijenjati, kopirati i štampati (printati) knjigu, prema pravilima GNU GPL licence. Mjesto i godina izdavanja: Osijek, 2017 ISBN: 978-953-59438-0-8 (PDF-online) URL publikacije (PDF): https://www.opensource-osijek.org/knjige/Kratka povijest UNIXa - Od UNICSa do FreeBSDa i Linuxa.pdf ISBN: 978-953- 59438-1- 5 (HTML-online) DokuWiki URL (HTML): https://www.opensource-osijek.org/dokuwiki/wiki:knjige:kratka-povijest- unixa Verzija publikacije : 1.0 Nakalada : Vlastita naklada Uz pravo svakoga na vlastito štampanje (printanje), prema pravilima GNU GPL licence. Ova knjiga je napisana unutar inicijative Open Source Osijek: https://www.opensource-osijek.org Inicijativa Open Source Osijek je član udruge Osijek Software City: http://softwarecity.hr/ UNIX je registrirano i zaštićeno ime od strane tvrtke X/Open (Open Group). FreeBSD i FreeBSD logo su registrirani i zaštićeni od strane FreeBSD Foundation. Imena i logo : Apple, Mac, Macintosh, iOS i Mac OS su registrirani i zaštićeni od strane tvrtke Apple Computer. Ime i logo IBM i AIX su registrirani i zaštićeni od strane tvrtke International Business Machines Corporation. IEEE, POSIX i 802 registrirani i zaštićeni od strane instituta Institute of Electrical and Electronics Engineers. Ime Linux je registrirano i zaštićeno od strane Linusa Torvaldsa u Sjedinjenim Američkim Državama. Ime i logo : Sun, Sun Microsystems, SunOS, Solaris i Java su registrirani i zaštićeni od strane tvrtke Sun Microsystems, sada u vlasništvu tvrtke Oracle. Ime i logo Oracle su u vlasništvu tvrtke Oracle.
    [Show full text]
  • BSD Projects IV – BSD Certification • Main Features • Community • Future Directions a (Very) Brief History of BSD
    BSD Overview Jim Brown May 24, 2012 BSD Overview - 5/24/2012 - Jim Brown, ISD BSD Overview I – A Brief History of BSD III – Cool Hot Stuff • ATT UCB Partnership • Batteries Included • ATT(USL) Lawsuit • ZFS , Hammer • BSD Family Tree • pf Firewall, pfSense • BSD License • Capsicum • Virtualization Topics • Jails, Xen, etc. • Desktop PC-BSD II – The Core BSD Projects IV – BSD Certification • Main Features • Community • Future Directions A (Very) Brief History of BSD 1971 – ATT cheaply licenses Unix source code to many organizations, including UCB as educational material 1975 – Ken Thompson takes a sabbatical from ATT, brings the latest Unix source on tape to UCB his alma mater to run on a PDP 11 which UCB provided. (Industry/academic partnerships were much more common back then.) Computer Science students (notably Bill Joy and Chuck Haley) at UCB begin to make numerous improvements to Unix and make them available on tape as the “Berkeley Software Distribution” - BSD A (Very) Brief History of BSD Some notable CSRG • 1980 – Computer Science Research Group members (CSRG) forms at UCB with DARPA funding to make many more improvements to Unix - job control, autoreboot, fast filesystem, gigabit address space, Lisp, IPC, sockets, TCP/IP stack + applications, r* utils, machine independence, rewriting almost all ATT code with UCB/CSRG code, including many ports • 1991 – The Networking Release 2 tape is released on the Internet via anon FTP. A 386 port quickly follows by Bill and Lynne Jolitz. The NetBSD group is formed- the first Open Source community entirely on the Internet • 1992 – A commercial version, BSDI (sold for $995, 1-800-ITS-UNIX) draws the ire of USL/ATT.
    [Show full text]
  • OMV Crash 25Feb2020 Syslog
    Feb 25 00:00:00 prometheus rsyslogd: [origin software="rsyslogd" swVersion="8.1901.0" x-pid="858" x-info="https://www.rsyslog.com"] rsyslogd was HUPed Feb 25 00:00:00 prometheus systemd[1]: logrotate.service: Succeeded. Feb 25 00:00:00 prometheus systemd[1]: Started Rotate log files. Feb 25 00:00:01 prometheus CRON[10420]: (root) CMD (/usr/sbin/omv- mkrrdgraph >/dev/null 2>&1) Feb 25 00:09:00 prometheus systemd[1]: Starting Clean php session files... Feb 25 00:09:00 prometheus sessionclean[10668]: PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/pam.so' - /usr/lib/php/20151012/pam.so: cannot open shared object file: No such file or directory in Unknown on line 0 Feb 25 00:09:00 prometheus sessionclean[10668]: PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/pam.so' - /usr/lib/php/20151012/pam.so: cannot open shared object file: No such file or directory in Unknown on line 0 Feb 25 00:09:00 prometheus sessionclean[10668]: PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/pam.so' - /usr/lib/php/20151012/pam.so: cannot open shared object file: No such file or directory in Unknown on line 0 Feb 25 00:09:00 prometheus systemd[1]: phpsessionclean.service: Succeeded. Feb 25 00:09:00 prometheus systemd[1]: Started Clean php session files. Feb 25 00:09:01 prometheus CRON[10770]: (root) CMD ( [ -x /usr/lib/ php/sessionclean ] && if [ ! -d /run/systemd/system ]; then /usr/lib/ php/sessionclean; fi) Feb 25 00:15:01 prometheus CRON[10858]: (root) CMD (/usr/sbin/omv- mkrrdgraph >/dev/null 2>&1) Feb 25 00:17:01 prometheus CRON[10990]: (root) CMD ( cd / && run- parts --report /etc/cron.hourly) Feb 25 00:17:01 prometheus postfix/postsuper[10993]: fatal: scan_dir_push: open directory hold: No such file or directory Feb 25 00:30:01 prometheus CRON[11200]: (root) CMD (/usr/sbin/omv- mkrrdgraph >/dev/null 2>&1) Feb 25 00:39:00 prometheus systemd[1]: Starting Clean php session files..
    [Show full text]
  • NAS on Raspberry
    NAS on Raspberry StefanoStefano BallardiniBallardini 10262013 @ I.I.S. Alberghetti - Imola 11092013 @ Sala Consigliare Comune di Faenza - Faenza DEFINIZIONE DI N.A.S. Un Network Attached Storage (NAS) è un dispositivo collegato ad una rete di computer la cui funzione è quella di condividere tra gli utenti della rete una memoria di massa, in pratica costituita da uno o più dischi rigidi (from Wikipedia) VANTAGGI - Dati centralizzati - Dati in sicurezza PRIMO INGREDIENTE: il RaspBerry Pi DEFINIZIONE DI RASPBERRY PI Il Raspberry Pi è un single-board computer (un calcolatore implementato su una sola scheda elettronica) sviluppato nel Regno Unito dalla Raspberry Pi Foundation ( from Wikipedia ) http://www.raspberrypi.org/ CARATTERISTICHE HW DEL RASPBERRY SECONDO INGREDIENTE: SdCard compatibile http://elinux.org/RPi_SD_cards http://www.raspberrypi.org/ TERZO INGREDIENTE: la Raspbian DEFINIZIONE Raspbian is a free operating system based on Debian optimized for the Raspberry Pi hardware - www.raspbian.org - http://www.raspberrypi.org/downloads + = Raspbian INSTALLAZIONE di Raspbian: dd bs=4M if=immagine-wheezy-raspbian.img of=/dev/X INSTALLAZIONE di Raspbian: dd bs=4M if=immagine-wheezy-raspbian.img of=/dev/X AGGIUNTA IP di RETE: Modifica di /etc/network/interface di Raspbian iface eth0 inet static address 192.168.0.10 netmask 255.255.255.0 gateway 192.168.0.1 broadcast 192.168.0.0 RAGGIUNGIAMO IL RASPBERRY: - Configurazione ip sul pc locale - Accensione del Raspberry - Collegamento al Raspberry via SSH PRIME CONFIGURAZIONI: # raspi-config MA CHE ASPETTO HA STA RASPBIAN ? - utilizziamo un server VNC: - ci colleghiamo al Raspberry via ssh - # apt-get install tightvncserver - $ tightvncserver :1 -geometry 800x600 - dal pc remoto utilizziamo un client vnc - # apt-get install xtightvncwiever - $ xtightvncwiever 192.168.0.10:1 MA CHE ASPETTO HA STA RASPBIAN ? QUARTO INGREDIENTE: Open Media Vault DEFINIZIONE OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux.
    [Show full text]
  • Three Open Source Network Storage Software
    Three Open Source Network Storage Software Whether you’re looking to create a scalable storage solution for your organization or a simple and easy to setup storage box for your home or small office, here are three packages that will meet all your network storage requirements. You can either download their latest editions or take them from this month’s PCQ DVD. - Sandeep Koul NAS4Free This software is actually related to FreeNAS (the one we’ve done a detailed implementation guide on in this issue), which is probably why it has a similar sounding name. In fact, NAS4Free is a direct continuation of efforts that went into developing the original FreeNAS code, which started in 2005 and continued till 2011 by the name FreeNAS. Post 2011, these two packages were developed separately by two different communities. Like FreeNAS, NAS4Free also comes loaded with features like sharing across Windows, Apple, and UNIX-like systems, includes ZFS, software RAID (0,1,5), disk encryption, S.M.A.R.T / email reports etc. It supports all common network storage protocols including CIFS (samba), FTP, NFS, TFTP, AFP, RSYNC, Unison, iSCSI, UPnP, Bittorent (initiator and target). All these features can be configured through the software’s Web interface. The package is an embedded Open Source Network-Attached Storage distribution and is based on FreeBSD. Download from: www.nas4free.org/ OpenMediaVault The great feature about this storage package is the modular design of its framework, due to which its functionality can be enhanced via plug-ins. OpenMediaVault is based pcquest.com twitter.com/pcquest facebook.com/pcquest linkd.in/pcquest [email protected] DECEMBER 2012 PCQUEST 51 COVER STORY on Debian Linux and contains services like SSH, (S)FTP, with the pricing determined on a per-terabyte and per- SMB/CIFS, DAAP media server, RSync, BitTorrent client server licensing basis.
    [Show full text]