Lines Matching +full:secondary +full:- +full:device

2 .\" Copyright (c) 2015-2017 Alexander Motin <mav@FreeBSD.org>
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36 .Cd "device ctl"
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53 Disk, CD-ROM and processor device emulation
76 All I/O handled in-kernel, no userland context switch overhead
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102 Provides access for local user-level applications via
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145 Default is 0 -- no HA, 1 and 2 -- HA enabled at specified position.
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150 Active/Standby -- primary node has backend access and processes requests,
151 while secondary can only do basic LUN discovery and reservation;
153 Active/Active -- both nodes have backend access and process requests,
154 while secondary node synchronizes processing with primary one;
156 Active/Active -- primary node has backend access and processes requests,
157 while secondary node forwards all requests and data to primary one;
160 If connection is not configured, secondary node will report Unavailable
161 state; if configured but not established -- Transitioning state.
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182 secondary.
184 This role can be overridden on per-LUN basis using "ha_role" LUN option,
185 so that for one LUN one node is primary, while for another -- another.
186 Role change from primary to secondary for HA modes 0 and 2 closes backends,
187 the opposite change -- opens.
188 If there is no primary node (both nodes are secondary, or secondary node has
189 no connection to primary one), secondary node(s) report Transitioning state.
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