Merge with old CVS version; this should now contain the best of old CVS and 20051107...

[fs/lustre-release.git] / lustre-iokit / sgpdd-survey / sgpdd-survey

diff --git a/lustre-iokit/sgpdd-survey/sgpdd-survey b/lustre-iokit/sgpdd-survey/sgpdd-survey
index 409fb84..b7612d2 100755 (executable)
--- a/lustre-iokit/sgpdd-survey/sgpdd-survey
+++ b/lustre-iokit/sgpdd-survey/sgpdd-survey
@@ -3,12 +3,13 @@
 ######################################################################
 # customize per survey
 
 ######################################################################
 # customize per survey
 

-# the SCSI devices to measure
-#scsidevs="/dev/sde /dev/sdh"
+# the SCSI devices to measure - WARNING: will be erased.
+#scsidevs=`ls /dev/sd[a-z] /dev/sd[a-z][a-z]` # all devices, if you use udev
+scsidevs=${scsidevs:-"/dev/sde /dev/sdh"}

 
 # result file prefix.  date/time+hostname makes unique
 # NB ensure the path exists if it includes subdirs
 
 # result file prefix.  date/time+hostname makes unique
 # NB ensure the path exists if it includes subdirs

-rslt=/tmp/sgpdd_survey_`date +%F@%R`_`uname -n`
+rslt=${rslt:-"/tmp/sgpdd_survey_`date +%F@%R`_`uname -n`"}

 
 # what to do (read or write)
 actions="write read"
 
 # what to do (read or write)
 actions="write read"


@@ -22,13 +23,13 @@ rszlo=1024
 rszhi=1024
 
 # Concurrent regions per device
 rszhi=1024
 
 # Concurrent regions per device

-crglo=1
-crghi=256
+crglo=${crglo:-1}
+crghi=${crghi:-256}

 
 # threads to share between concurrent regions per device
 # NB survey skips over #thr < #regions and #thr/#regions > SG_MAX_QUEUE
 
 # threads to share between concurrent regions per device
 # NB survey skips over #thr < #regions and #thr/#regions > SG_MAX_QUEUE

-thrlo=1
-thrhi=4096
+thrlo=${thrlo:-1}
+thrhi=${thrhi:-4096}

 
 #####################################################################
 # leave the rest of this alone unless you know what you're doing...
 
 #####################################################################
 # leave the rest of this alone unless you know what you're doing...