arch-guide: reference geo-redundancy

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Thomas Schoebel-Theuer 2019-10-10 09:01:06 +02:00 committed by Thomas Schoebel-Theuer
parent f15fee0a1e
commit 107b51f3be
1 changed files with 47 additions and 7 deletions

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@ -1957,8 +1957,18 @@ geo-redundancy
\series bold
survial of geo-disasters
\series default
like earthquakes or floods is added to (2) as an additional requirement,
some
like earthquakes or floods is added to (2) as an additional requirement
(see also section
\begin_inset CommandInset ref
LatexCommand nameref
reference "sec:What-is-Geo-Redundancy"
plural "false"
caps "false"
noprefix "false"
\end_inset
), some
\emph on
further consequences
\emph default
@ -7176,7 +7186,17 @@ name "subsec:Example:-ZFS-Replication"
\begin_layout Standard
Some ZFS advocates believe that ZFS snapshots, which were originally designed
for backup-like use cases, are also appropriate solutions for achieving
geo-redundancy.
geo-redundancy (cf section
\begin_inset CommandInset ref
LatexCommand nameref
reference "sec:What-is-Geo-Redundancy"
plural "false"
caps "false"
noprefix "false"
\end_inset
).
The basic idea is to run incremental ZFS snapshots in an endless loop,
e.g.
via some simple scripts, and expediting to another host where the snapshots
@ -10109,9 +10129,19 @@ When
\series bold
geo-redundancy
\series default
is required, the total effort may easily double another time because in
cases of disasters like terrorist attacks the backup datacenter must be
prepared for taking over for multiple days or weeks.
is required (see section
\begin_inset CommandInset ref
LatexCommand nameref
reference "sec:What-is-Geo-Redundancy"
plural "false"
caps "false"
noprefix "false"
\end_inset
), the total effort may easily double another time because in cases of disasters
like terrorist attacks the backup datacenter must be prepared for taking
over for multiple days or weeks.
\begin_inset Newline newline
\end_inset
@ -12794,7 +12824,17 @@ reference "sec:Reliability-Arguments-from"
\end_layout
\begin_layout Standard
Notice that geo-redundancy implies by definition that an unforeseeable
Notice that geo-redundancy implies by definition (see section
\begin_inset CommandInset ref
LatexCommand nameref
reference "sec:What-is-Geo-Redundancy"
plural "false"
caps "false"
noprefix "false"
\end_inset
) that an unforeseeable
\series bold
full datacenter loss
\series default