[linux-lvm] open count 1 blocking me from removing unused lv..
mixalis at evoip.gr
Wed Jan 30 08:43:46 UTC 2013
good day sirs,
i am using SLES sp1 on an IBM system z mainframe (s390 arch with DASD disks)
and i am facing the following problem...
i have one VG with 2 LVs ,the data from second lv was moved elsewere and i want
to remove the lv and free up the DASD disks BUT i have a problem...
when the data was moved ALL related daemons/programs writing/reading files on this lv
should be closed...but they werent.. :(
using lsof i found some apps accessing the old lv and they were killed,
also checking /proc/locks revealed programs that were closed...
tried to remove the lv by using lvremove but failed ,dmsetup -c info shows:
Name Maj Min Stat Open Targ Event UUID
system-home 253 0 L--w 1 1 0 LVM-QNFhmaviXPV05YkWno62o7zaEqaM3OMgcp1bhHr4HNLEaMskAgBUGkGAqeHwnXMV
open count is 1 and i cant find who/which keeps it open...
lsof shows nothing....
cat /proc/locks | grep fd:00 shows nothing...
tried to remove it by using
dmsetup remove system-home
dmsetup --force remove system-home
any ideas (i am trying to avoid reboot) on how can i find what is keeping my lv open...?
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