.

bigfile/file_zodb.py

@@ -57,7 +57,9 @@ several ZODB processes.
 
 In shared-cache mode file's data is accessed through special filesystem for
 which data cache is centrally maintained by OS kernel. This mode was added in
-2020 and reduces wendelin.core RAM consumption dramatically.
+2020 and reduces wendelin.core RAM consumption dramatically. Note that even
+though the cache is shared, isolation property is still fully provided. Please
+see wcfs/wcfs.go which describes the filesystem and shared-cache mode in detail.
 
 The mode of operation can be selected via environment variable::
 
@@ -65,8 +67,6 @@ The mode of operation can be selected via environment variable::
       rw:uvmm         local-cache   (i.e. !wcfs)    (default)
       r:wcfs+w:uvmm   shared-cache  (i.e.  wcfs)
 
-Please see wcfs/wcfs.go which describes shared-cache mode in detail.
-
 
 Data format
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