MB-14334: index path under disk storage
MB-14334: index path under disk storage

Change-Id: I1f5a1981684789f85b9577bcdf89acb6dedfc6a4
Reviewed-on: http://review.couchbase.org/51246
Reviewed-by: Dave Finlay <7b10a9ed9f70e64c30b07607a671ae61c33f14c8@couchbase.com>
Tested-by: Dave Finlay <7b10a9ed9f70e64c30b07607a671ae61c33f14c8@couchbase.com>

nimishzynga/ns_server,nimishzynga/ns_server,mschoch/ns_server,nimishzynga/ns_server,mschoch/ns_server,ceejatec/ns_server,mschoch/ns_server,membase/ns_server,ceejatec/ns_server,ceejatec/ns_server,ceejatec/ns_server,nimishzynga/ns_server,nimishzynga/ns_server,mschoch/ns_server,mschoch/ns_server,ceejatec/ns_server,membase/ns_server,membase/ns_server,nimishzynga/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,ceejatec/ns_server,mschoch/ns_server