€•7"      Œsphinx.addnodes”Œdocument”“”)”}”(Œ	rawsource”Œ ”Œchildren”]”(Œtranslations”ŒLanguagesNode”“”)”}”(hhh]”(h Œpending_xref”“”)”}”(hhh]”Œdocutils.nodes”ŒText”“”ŒChinese (Simplified)”…””}”Œparent”hsbaŒ
attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ	refdomain”Œstd”Œreftype”Œdoc”Œ	reftarget”Œ?/translations/zh_CN/admin-guide/blockdev/drbd/data-structure-v9”Œmodname”NŒ	classname”NŒrefexplicit”ˆuŒtagname”hhhubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ?/translations/zh_TW/admin-guide/blockdev/drbd/data-structure-v9”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ?/translations/it_IT/admin-guide/blockdev/drbd/data-structure-v9”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ?/translations/ja_JP/admin-guide/blockdev/drbd/data-structure-v9”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ?/translations/ko_KR/admin-guide/blockdev/drbd/data-structure-v9”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒSpanish”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ?/translations/sp_SP/admin-guide/blockdev/drbd/data-structure-v9”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h
hhŒ	_document”hŒsource”NŒline”NubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒ kernel data structure for DRBD-9”h]”hŒ kernel data structure for DRBD-9”…””}”(hh¨hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hh£hžhhŸŒY/var/lib/git/docbuild/linux/Documentation/admin-guide/blockdev/drbd/data-structure-v9.rst”h KubhŒ	paragraph”“”)”}”(hŒ†This describes the in kernel data structure for DRBD-9. Starting with
Linux v3.14 we are reorganizing DRBD to use this data structure.”h]”hŒ†This describes the in kernel data structure for DRBD-9. Starting with
Linux v3.14 we are reorganizing DRBD to use this data structure.”…””}”(hh¹hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khh£hžhubh¢)”}”(hhh]”(h§)”}”(hŒBasic Data Structure”h]”hŒBasic Data Structure”…””}”(hhÊhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hhÇhžhhŸh¶h K	ubh¸)”}”(hŒÊA node has a number of DRBD resources.  Each such resource has a number of
devices (aka volumes) and connections to other nodes ("peer nodes"). Each DRBD
device is represented by a block device locally.”h]”hŒÎA node has a number of DRBD resources.  Each such resource has a number of
devices (aka volumes) and connections to other nodes (â€œpeer nodesâ€). Each DRBD
device is represented by a block device locally.”…””}”(hhØhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhhÇhžhubh¸)”}”(hŒ©The DRBD objects are interconnected to form a matrix as depicted below; a
drbd_peer_device object sits at each intersection between a drbd_device and a
drbd_connection::”h]”hŒ¨The DRBD objects are interconnected to form a matrix as depicted below; a
drbd_peer_device object sits at each intersection between a drbd_device and a
drbd_connection:”…””}”(hhæhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhhÇhžhubhŒliteral_block”“”)”}”(hX%  /--------------+---------------+.....+---------------\
|   resource   |    device     |     |    device     |
+--------------+---------------+.....+---------------+
|  connection  |  peer_device  |     |  peer_device  |
+--------------+---------------+.....+---------------+
:              :               :     :               :
:              :               :     :               :
+--------------+---------------+.....+---------------+
|  connection  |  peer_device  |     |  peer_device  |
\--------------+---------------+.....+---------------/”h]”hX%  /--------------+---------------+.....+---------------\
|   resource   |    device     |     |    device     |
+--------------+---------------+.....+---------------+
|  connection  |  peer_device  |     |  peer_device  |
+--------------+---------------+.....+---------------+
:              :               :     :               :
:              :               :     :               :
+--------------+---------------+.....+---------------+
|  connection  |  peer_device  |     |  peer_device  |
\--------------+---------------+.....+---------------/”…””}”hhösbah}”(h]”h ]”h"]”h$]”h&]”Œ	xml:space”Œpreserve”uh1hôhŸh¶h KhhÇhžhubh¸)”}”(hXt  In this table, horizontally, devices can be accessed from resources by their
volume number.  Likewise, peer_devices can be accessed from connections by
their volume number.  Objects in the vertical direction are connected by double
linked lists.  There are back pointers from peer_devices to their connections a
devices, and from connections and devices to their resource.”h]”hXt  In this table, horizontally, devices can be accessed from resources by their
volume number.  Likewise, peer_devices can be accessed from connections by
their volume number.  Objects in the vertical direction are connected by double
linked lists.  There are back pointers from peer_devices to their connections a
devices, and from connections and devices to their resource.”…””}”(hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhhÇhžhubh¸)”}”(hŒœAll resources are in the drbd_resources double-linked list.  In addition, all
devices can be accessed by their minor device number via the drbd_devices idr.”h]”hŒœAll resources are in the drbd_resources double-linked list.  In addition, all
devices can be accessed by their minor device number via the drbd_devices idr.”…””}”(hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K$hhÇhžhubh¸)”}”(hX  The drbd_resource, drbd_connection, and drbd_device objects are reference
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device and connection which they reference.”h]”hX  The drbd_resource, drbd_connection, and drbd_device objects are reference
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