Difference between revisions of "User:Sanghwa"

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= Something useful =
 
= Something useful =
* How to copy raw data files from tape:
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== How to copy raw data files from tape ==
 
  (email from Brad Sawatzky)
 
  (email from Brad Sawatzky)
 
  Do not use 'jget' -- that makes a copy to an arbitrary file system (kind
 
  Do not use 'jget' -- that makes a copy to an arbitrary file system (kind

Latest revision as of 12:23, 22 August 2019

Postdoctoral researcher at Stony Brook University these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words these are filler words

Something useful

How to copy raw data files from tape

(email from Brad Sawatzky)
Do not use 'jget' -- that makes a copy to an arbitrary file system (kind
of like 'cp' on regular files).

You want to use 'jcache get ...' which will have the system pull the file to /cache/hallc/spring17/raw/ as you wish. Run 'jcache -h' to get some help text and/or the online docs here: https://scicomp.jlab.org/docs/%20

So, something like this should work: jcache get /mss/hallc/spring17/raw/shms_all_02895.dat The file will show up here as soon as a tape drive is ready to pull the run (can be anywhere from minutes to 24 hours depending on load). /cache/hallc/spring17/raw/shms_all_02895.dat

Wildcards work too: jcache get /mss/hallc/spring17/raw/shms_all_028*.dat (But be careful, don't do 'jcache get /mss/hallc/spring17/raw/*' :-)

You can find the status of your request from: https://scicomp.jlab.org/scicomp/index.html#/cache/request

Example for PREX counting daq data:

ifarm1402.jlab.org> jcache get /mss/halla/happexsp/raw/prexRHRS_20982.dat.0
get request: 21382881
status: pending
/cache/halla/happexsp/raw/prexRHRS_20982.dat.0 -> pending
  • Brad's CH Tips and Tricks [1]

Random stuff