Subject: Summary of DLT processing (#DD001-DD024)
From: Erik Katsavounidis (Erik.Katsavounidis@lngs.infn.it)
Date: Thu Nov 25 1999 - 11:36:07 EST
Hi all,
This file is available also at
http://wsgs02.lngs.infn.it:8000/macro/dd_01_24_summaries.html
As you propably know we have been reprosessing all MACRO data since July 1995
in order to complete our data set for monopole and LIP searches. This has
obliged us to go back to the full ZEBRA DLTs (MACRO has just filled up DLT#301).
We have gone through the first 25 DLTs [DD001-DD024] + D011B.
I here summarize observations that are related to bookkeeping and analysis
issues.
The covered topics include:
(A) DLT labeling -- DLT failure rate
(B) 60 hours of MACRO data **F O U N D** (have not been analyzed for nu_mu's?)
(C) Mismatch of RUN lengths due to DREAM errors at the RAW to ZEBRA stage
Let me know if you have any comments/questions.
We are keep going at a rate of 2-3 tapes per day with a goal to complete
all missing data (DD001-DD066) by the time of the January collaboration meeting.
--Erik
================================================================================
(A) LNGS has a ~260 DLT TAPE /3 DLT DRIVE ROBOT. We have proceeded in barcode
labeling of the tapes at Gran Sasso. This allows immediate use of the
robot for all MACRO data. We have actually used extensively the ROBOT
so far for this data reprocessing.
We have processed 25 DLTs corresponding to RUN10557 (24-JUL-1995) up to
RUN11496 (28-DEC-1995). One DLT, (DD011B) failed to download to disk
three files while it corrupted downloading of a forth one.
DD011B was restored from the VMS BACKUP of the corresponding tape.
There was another occasion that suggested a DLT failure; this eventually
was traced to a hard disk problem.
There were minor errors in the local tape list files that were corrected
for DD011B and DD008 (RUN10880).
(B) There were 12 files for which the ONLINE LOGBOOK was not produced. As
a result the MUON DSTs were never produced (at least locally at LNGS).
My guess is that these runs escaped from the majority of the muon analyses.
Notice that there was a RUN (10880) for which the logbook entry that
results is the one for 10881!!! This is dangerous and the online lgb
for RUN 10880 should be immediately deleted.
Location in Tape RUN# SIZE in VMS blocks TAPE
file # 03/ 31 RUN010739.DAT 189330 DD005
file # 27/ 42 RUN010880.DAT 645823 DD008
file # 15/ 23 RUN010976.DAT 647469 DD011
file # 16/ 23 RUN010977.DAT 646765 DD011
file # 17/ 23 RUN010978.DAT 646671 DD011
file # 18/ 23 RUN010979.DAT 646818 DD011
file # 19/ 23 RUN010980.DAT 646757 DD011
file # 27/ 49 RUN011109.DAT 335658 DD014
file # 28/ 49 RUN011110.DAT 237754 DD014
file # 16/ 26 RUN011145.DAT 300784 DD015
file # 22/ 26 RUN011151.DAT 646125 DD015
file # 23/ 26 RUN011152.DAT 295576 DD015
Unfortunately, we have not kept these runs on disk. Within a couple
of week though we'll be able to produce the muon astronomy file for them.
(C) Our data processing involves as a first step the reproduction of the
RAW MACRO RUN file starting from the ZEBRA one. This is fundamental
in order to access the WFD data under the VMS platform. During this
process, we found the following 28 RUNs that resulted in a SHORTER
RAW file respect to what we were expecting by some 50-100 KB. This is
a non recoverable loss and our working hypothesis is that these data
were lost due to a DREAM error at the RAW to ZEBRA stage. The record
lost were most likely connected to bogus events anyways.
Location in Tape RUN# SIZE in VMS blocks TAPE
expect found
file # 30/ 37 RUN011016.DAT 645819 645810 DD011B
file # 47/ 49 RUN011127.DAT 102496 102488 DD014
file # 01/ 26 RUN011130.DAT 645830 645826 DD015
file # 19/ 26 RUN011148.DAT 645806 645761 DD015
file # 17/ 45 RUN011170.DAT 645817 645800 DD016
file # 19/ 45 RUN011172.DAT 385442 385392 DD016
file # 02/ 43 RUN011194.DAT 645811 645732 DD017
file # 02/ 77 RUN011235.DAT 645777 645685 DD018
file # 09/ 77 RUN011242.DAT 645988 645882 DD018
file # 13/ 77 RUN011246.DAT 645899 645865 DD018
file # 18/ 77 RUN011251.DAT 27931 27877 DD018
file # 14/ 31 RUN011310.DAT 645809 645756 DD019
file # 16/ 31 RUN011312.DAT 645793 645785 DD019
file # 15/ 51 RUN011340.DAT 645819 645773 DD020
file # 21/ 51 RUN011346.DAT 645920 645869 DD020
file # 26/ 51 RUN011351.DAT 645817 645727 DD020
file # 48/ 51 RUN011369.DAT 63210 63178 DD020
file # 17/ 33 RUN011387.DAT 645973 645892 DD021
file # 22/ 33 RUN011392.DAT 645858 645769 DD021
file # 01/ 40 RUN011404.DAT 411345 411269 DD022
file # 24/ 40 RUN011425.DAT 77626 77549 DD022
file # 27/ 40 RUN011428.DAT 645870 645828 DD022
file # 04/ 27 RUN011473.DAT 645888 645819 DD024
file # 06/ 27 RUN011475.DAT 645816 645687 DD024
file # 12/ 27 RUN011481.DAT 645830 645783 DD024
file # 14/ 27 RUN011483.DAT 324556 324438 DD024
file # 19/ 27 RUN011488.DAT 599398 599324 DD024
file # 25/ 27 RUN011494.DAT 645850 645786 DD024
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