HowTo: Permanent Migration to dCache Read Only Pools

Source pools

• Add the following lines to your ${pool.path}/setup file, or alternatively execute these commands from the pool admin console.

• If you want permanent changes, remember to run save at the end only when executing these commands from the pool admin console. This way is equivalent to write the below information in the ${pool.path}/setup file.

csm set checksumtype ADLER32
csm set policy -scrub=off
csm set policy -onread=off -onwrite=on -onflush=off -onrestore=off -ontransfer=off -enforcecrc=on -getcrcfromhsm=off
#
# Flushing Thread setup
#
flush set max active 1000
flush set interval 60
flush set retry delay 60
jtm set timeout -queue=regular -lastAccess=0 -total=0
jtm set timeout -queue=p2p -lastAccess=0 -total=0
jtm set timeout -queue=wan -lastAccess=0 -total=0
jtm set timeout -queue=xrootd -lastAccess=0 -total=0
jtm set timeout -queue=io -lastAccess=0 -total=0
jtm set timeout -queue=default -lastAccess=0 -total=0
#
# MigrationModule
#
migration cache -permanent -pins=keep -concurrency=2 -atime -accessed=0..600 -select=random -include=t3fs01*cms,t3fs02*cms,t3fs03*cms,t3fs04*cms,t3fs04*cms_1,t3fs07*cms,t3fs08*cms,t3fs09*cms,t3fs10*cms,t3fs11*cms -target=pgroup -exclude=t3fs13*,t3fs14*,t3fs15*,t3fs16* -id=caching_recently_accessed_files -verify -size=1070000.. -- cms
set heartbeat 30
set report remove on
set breakeven 0.7
set mover cost factor 0.5
set duplicate request none
mover set max active -queue=regular 100
mover set max active -queue=p2p 10
mover set max active -queue=wan 2
mover set max active -queue=xrootd 4
#
#  Pool to Pool (P2P)
#
pp set max active 10
pp set pnfs timeout 300
set max diskspace 23622320128000
set gap 4294967296
rh set timeout 14400
st set timeout 14400
rm set timeout 14400

In the PoolManager you classify the read-only pools ( the targets ) /var/lib/dcache/config/poolmanager.conf

1. READ ONLY SECTION

psu set pool t3fs01_cms rdonly psu set pool t3fs02_cms rdonly psu set pool t3fs03_cms rdonly psu set pool t3fs04_cms rdonly psu set pool t3fs04_cms_1 rdonly psu set pool t3fs07_cms rdonly psu set pool t3fs07_cms_1 rdonly psu set pool t3fs08_cms rdonly psu set pool t3fs08_cms_1 rdonly psu set pool t3fs09_cms rdonly psu set pool t3fs09_cms_1 rdonly psu set pool t3fs10_cms rdonly psu set pool t3fs10_cms_1 rdonly psu set pool t3fs11_cms rdonly psu set pool t3fs11_cms_1 rdonly psu set pool t3fs13_cms_0 rdonly psu set pool t3fs14_cms_0 rdonly