DOC-5726 RS: Fixed v2 PromQL equivalent for bdb_up metric (#2117)

Author: rrelledge

content/embeds/rs-prometheus-metrics-transition-plan.md

@@ -59,7 +59,7 @@
 | <span class="break-all">bdb_total_req_max</span> | <span class="break-all">`max_over_time(sum by (db) (irate(endpoint_read_requests{db=""$db""}[1m]) + irate(endpoint_write_requests{db=""$db""}[1m]) + irate(endpoint_other_requests{db=""$db""}[1m])) [$__range:])`</span> | Highest value of the rate of all requests on the database (ops/sec) |
 | <span class="break-all">bdb_total_res</span> | <span class="break-all">`sum by (db) (irate(endpoint_read_responses{db=""$db""}[1m]) + irate(endpoint_write_responses{db=""$db""}[1m]) + irate(endpoint_other_responses{db=""$db""}[1m]))`</span> | Rate of all responses on the database (ops/sec) |
 | <span class="break-all">bdb_total_res_max</span> | <span class="break-all">`max_over_time(sum by (db) (irate(endpoint_read_responses{db=""$db""}[1m]) + irate(endpoint_write_responses{db=""$db""}[1m]) + irate(endpoint_other_responses{db=""$db""}[1m])) [$__range:])`</span> | Highest value of the rate of all responses on the database (ops/sec) |
-| <span class="break-all">bdb_up</span> | <span class="break-all">`min by(db) (redis_up)`</span> | Database is up and running |
+| <span class="break-all">bdb_up</span> | <span class="break-all">`min by(db) (redis_server_up)`</span> | Database is up and running |
 | <span class="break-all">bdb_used_memory</span> | <span class="break-all">`sum by (db) (redis_server_used_memory)`</span> | Memory used by database (in BigRedis this includes flash) (bytes) |
 | <span class="break-all">bdb_write_hits</span> | <span class="break-all">`sum by (db) (irate(redis_server_keyspace_write_hits{role="master"}[1m]))`</span> | Rate of write operations accessing an existing key (ops/sec) |
 | <span class="break-all">bdb_write_hits_max</span> | <span class="break-all">`sum by (db) (irate(redis_server_keyspace_write_hits{role="master"}[1m]))`</span> | Highest value of the rate of write operations accessing an existing key (ops/sec) |