[SOLVED] LVS missing attribute "o"

czezz · 07-11-2018, 07:22 AM

Hi,
can any please help me to set up/add attribute "o", so in that logical volume looks like following (see Attr colume):

Code:

lvs --segments -v /dev/mapper/rhel-docker--pool
    Using logical volume(s) on command line.
  LV          VG   Attr       Start SSize #Str Type      Stripe Chunk
  docker-pool rhel twi-aot---    0  9.27g    1 thin-pool     0  512.00k

So far I managed to recreate logical volume with all other attributes but im still missing "o" (6th bit):

Code:

lvcreate -L 9.27G --zero n --thinpool docker-pool -n docker-pool rhel

lvs --segments -v /dev/mapper/rhel-docker--pool
  LV          VG   Attr       Start SSize   #Str Type      Stripe Chunk
  docker-pool rhel twi-a-t---    0  9.27g      1 thin-pool     0  64.00k

[UPDATE]
I have just found it out that attribute "o" means that the volume is mounted!
mount /dev/mapper/rhel-docker--pool /whatever will automatically set this flag/bit to "o".

stampede · 12-10-2020, 11:42 AM

Thank you czezz! This saved me last night, can't thank you enough for returning to your question and posting the answer. There are surprisingly few notes on this online.

I had an app team getting on my case why the attributes were different between two Kube hosts, after they started up the service and it began using the storage pool the pool got the o attribute and everyone was happy.