Add support for verify triggers and verify state saving

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 73be9d7b7aa8bfc555941899b88f81834d2d78ce..cdb7b013591b00078a05f0ba04b34ca8a0c4d182 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -1316,6 +1316,21 @@ verify_backlog_batch=int Control how many blocks fio will verify
                if verify_backlog_batch is larger than verify_backlog, some
                blocks will be verified more than once.
 
+verify_state_save=bool When a job exits during the write phase of a verify
+               workload, save its current state. This allows fio to replay
+               up until that point, if the verify state is loaded for the
+               verify read phase. The format of the filename is, roughly,
+               <type>-<jobname>-<jobindex>-verify.state. <type> is "local"
+               for a local run, "sock" for a client/server socket connection,
+               and "ip" (192.168.0.1, for instance) for a networked
+               client/server connection.
+
+verify_state_load=bool If a verify termination trigger was used, fio stores
+               the current write state of each thread. This can be used at
+               verification time so that fio knows how far it should verify.
+               Without this information, fio will run a full verification
+               pass, according to the settings in the job file used.
+
 stonewall
 wait_for_previous Wait for preceding jobs in the job file to exit, before
                starting this one. Can be used to insert serialization