sysadmin.adoc

   1 Host System Administration
   2 ==========================
   3
   4 {pve} is based on the famous https://www.debian.org/[Debian] Linux
   5 distribution. That means that you have access to the whole world of
   6 Debian packages, and the base system is well documented. The
   7 https://debian-handbook.info/download/stable/debian-handbook.pdf[Debian
   8 Administrator\'s Handbook] is available online, and provide a
   9 comprehensive introduction to the Debian operating system (see
  10 xref:Hertzog13[]).
  11
  12 A standard {pve} installation uses the default repositories from
  13 Debian, so you get bug fixes and security updates through that
  14 channel. In addition, we provide our own package repository to roll
  15 out all {pve} related packages. This includes updates to some
  16 Debian packages when necessary.
  17
  18 We also deliver a specially optimized Linux kernel, where we enable all
  19 required virtualization and container features. That kernel includes
  20 drivers for http://zfsonlinux.org/[ZFS], and several hardware drivers.
  21 For example, we ship Intel network card drivers to support their
  22 newest hardware.
  23
  24 The following sections will concentrate on virtualization related
  25 topics. They either explains things which are different on {pve}, or
  26 tasks which are commonly used on {pve}. For other topics, please refer
  27 to the standard Debian documentation.
  28
  29 System requirements
  30 -------------------
  31
  32 For production servers, high quality server equipment is needed. Keep
  33 in mind, if you run 10 Virtual Servers on one machine and you then
  34 experience a hardware failure, 10 services are lost. {pve}
  35 supports clustering, this means that multiple {pve} installations
  36 can be centrally managed thanks to the included cluster functionality.
  37
  38 {pve} can use local storage (DAS), SAN, NAS and also distributed
  39 storage (Ceph RBD). For details see xref:chapter-storage[chapter storage].
  40
  41 Minimum requirements, for evaluation
  42 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  43
  44 * CPU: 64bit (Intel EMT64 or AMD64)
  45
  46 * RAM: 1 GB RAM
  47
  48 * Hard drive
  49
  50 * One NIC
  51
  52 Recommended system requirements
  53 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  54
  55 * CPU: 64bit (Intel EMT64 or AMD64), Multi core CPU recommended
  56
  57 * RAM: 8 GB is good, more is better
  58
  59 * Hardware RAID with batteries protected write cache (BBU) or flash
  60  based protection
  61
  62 * Fast hard drives, best results with 15k rpm SAS, Raid10
  63
  64 * At least two NIC´s, depending on the used storage technology you need more
  65
  66
  67 include::getting-help.adoc[]
  68
  69 include::pve-package-repos.adoc[]
  70
  71 include::pve-installation.adoc[]
  72
  73 include::system-software-updates.adoc[]
  74
  75
  76 Network Configuration
  77 ---------------------
  78
  79 Basic network setup.
  80
  81 image::images/cluster-nwdiag.svg[{pve} Cluster Network]
  82
  83 image::images/node-nwdiag.svg[{pve} Default Network Setup]
  84
  85
  86 Local Storage
  87 -------------
  88
  89 Logical Volume Manager (LVM)
  90 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  91
  92 TODO: info about LVM.
  93
  94
  95 ZFS on Linux
  96 ~~~~~~~~~~~~
  97
  98 TODO: info about ZFS.
  99
 100
 101 Working with 'systemd'
 102 ----------------------
 103
 104 Journal and syslog
 105 ~~~~~~~~~~~~~~~~~~
 106
 107 TODO: explain persistent journal...
 108
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