Support #25182
final /grid/data cleanup for Data Preservation
100%
Description
This work is related to Data Preservation.
Minos data files were moved from /grid/data to /minos/data many years ago.
When checking file systems after recent SL7 updates to minos servers,
I found a few minos files remaning in /grid/data.
/grid/data/minos is all symlinks to /minos/data/grid-data or /minos/data.
/grid/data/e875/LOCK is a set of CPN log files.
I will have the /grid/data/minos/* links replaced
with a top level link to /minos/data/grid-data.
We have not needed CPN since Oct 2016
when /minos/data was unmounted from Fermigrid.
CPN seems to have last been used in April 2017.
I will archive the e875/LOCK files to /minos/data/grid/data/LOCK
and put in a symlink for compatibility.
All of this is transparent to the users.
History
#1 Updated by Arthur Kreymer 5 months ago
The /grid/data compatibility symlinks need to be consolidated for a couple of reasons.
Cleanliness - one symlink in /grid/data to /minos/data/grid/dzta would do the work of the present 19 links
Maintenance - the existing links are mostly owned by the root and rubin accounts.
#2 Updated by Arthur Kreymer 5 months ago
- % Done changed from 20 to 50
- Status changed from Assigned to Work in progress
I have moved the obsolete CPN LOCK files from /grid/data/e875/LOCK to /minos/data/grid-data/LOCK
This completed the cleanup of /grid/data/e875, leaving just /grid/data/minos links to be cleaned.
Details :
mindata@minos-data
GDL=/grid/data/e875/LOCK
MDL=/minos/data/grid-data/LOCK
du -smc ${GDL}
2016 /grid/data/e875/LOCK
2016 total
ls -l ${MDL}
lrwxrwxrwx 1 minos gpcf 20 Sep 19 2015 /minos/data/grid-data/LOCK -> /grid/data/e875/LOCK
rm ${MDL}
cp -ax ${GDL} ${MDL}
du -sm ${MDL}
2016 /minos/data/grid-data/LOCK
diff -r ${GDL} ${MDL}
find ${GDL} -type f | wc -l
281
find ${MDL} -type f | wc -l
281
date ; rm -r ${GDL}
Thu Nov 12 12:16:17 CST 2020
ln -s ${MDL} ${GDL}
ls -l ${GDL}
lrwxrwxrwx 1 mindata e875 26 Nov 12 12:16 /grid/data/e875/LOCK -> /minos/data/grid-data/LOCK
ls -l ${GDL}/
total 480
drwxrwxr-x 2 mindata e875 2048 Apr 8 2013 DO
-rwxr--r-- 1 mindata e875 3 Jun 28 2009 glimit
-rwxr--r-- 1 mindata e875 2 Nov 27 2012 limit
drwxrwxr-x 2 mindata e875 2048 Jan 15 2018 LOCKS
drwxrwxr-x 2 mindata e875 2048 Jan 15 2018 LOG
drwxr-xr-x 2 mindata e875 6144 Jan 15 2018 LOGS
-rw-r--r-- 1 mindata e875 2 Sep 25 2009 perf
-rw-r--r-- 1 mindata e875 3 Dec 4 2012 PERF
drwxrwxr-x 2 mindata e875 2048 Jan 15 2018 QUEUE
-rwxr--r-- 1 mindata e875 2 Dec 1 2012 rate
-rw-r--r-- 1 mindata e875 8 Aug 30 2010 small
-rw-r--r-- 1 mindata e875 2 Dec 6 2012 stale
drwxrwxr-x 4 mindata e875 2048 Aug 21 2009 STALE
-rw-r--r-- 1 mindata e875 2 Feb 19 2013 staleq
-rwxr--r-- 1 mindata e875 2 Aug 13 2009 wait
#3 Updated by Arthur Kreymer 5 months ago
- % Done changed from 50 to 80
I issued RITM1042078 11/12 Link /grid/data/minos to /minos/data/grid-data
For Data Preservation, Minos is ready to replace /grid/data/minos with a symbolic link to /minos/data/grid-data The /grid/data/minos area is owned by rubin ( deceaased ), and the links under it are owned by various users. Please remove the sybolic links under /grid/data/minos and make /grid/data/minos a symbolic link to /minos/data/grid-data.
#4 Updated by Arthur Kreymer 5 months ago
- % Done changed from 80 to 100
- Status changed from Work in progress to Resolved
RITM1042078 has been completed.
It was not deemed appropriate to link /grid/data/minos to /minos/data/grid-data on a different file system.
Ownership of /grid/data/minos and its content was set to mindata, in the e875 group.
This gives us full control of these compatibility links.
I consider the /grid/data cleanup to be complete.
No files remain, and we can remove unneeded links in the future.