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  1. RHEL
  2. RHEL-36089

lvm shows vdo pool as 99.99% full when it is no longer writable

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    • rhel-9.4
    • lvm2 / VDO
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    • sst_logical_storage
    • ssg_filesystems_storage_and_HA
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      After filling up this vdo filesystem, the pool only listed a Data% of 99,99% when it likely should have stated 100.00% since writes were now failing.

      kernel-5.14.0-427.el9    BUILT: Fri Feb 23 07:31:31 AM CET 2024
      lvm2-2.03.23-2.el9_4.1    BUILT: Mon May  6 03:34:55 PM CEST 2024
      lvm2-libs-2.03.23-2.el9_4.1    BUILT: Mon May  6 03:34:55 PM CEST 2024
      
      [root@grant-02 ~]# lvs -a -o +devices
        LV               VG            Attr       LSize    Pool     Origin Data%  Meta%  Move Log Cpy%Sync Convert Devices
        vdo_lv           vdo_sanity    vwi-aov---    6.00g vdo_pool        33.24                                   vdo_pool(0)
        vdo_pool         vdo_sanity    dwi-------    5.10g                 99.99                                   vdo_pool_vdata(0)
        [vdo_pool_vdata] vdo_sanity    Dwi-ao----    5.10g                                                         /dev/nvme1n1p1(0)
       
      [root@grant-02 ~]# dmsetup status
      vdo_sanity-vdo_lv: 0 12582912 linear
      vdo_sanity-vdo_pool-vpool: 0 12584960 vdo /dev/dm-3 normal - online online 1337290 1337344
      vdo_sanity-vdo_pool_vdata: 0 10698752 linear
       
      [root@grant-02 ~]# dmsetup table
      vdo_sanity-vdo_lv: 0 12582912 linear 253:4 1024
      vdo_sanity-vdo_pool-vpool: 0 12584960 vdo V4 /dev/dm-3 1337344 4096 32768 16380 deduplication on compression on maxDiscard 1 ack 1 bio 4 bioRotationInterval 64 cpu 2 hash 1 logical 1 physical 1
      vdo_sanity-vdo_pool_vdata: 0 10698752 linear 259:1 2048
       
      May  8 21:27:39 grant-02 dmeventd[1552]: WARNING: VDO pool vdo_sanity-vdo_pool-vpool is now 99.99% full.
       
      [root@grant-02 ~]# df -h
      Filesystem                       Size  Used Avail Use% Mounted on
      /dev/mapper/vdo_sanity-vdo_lv    5.9G  1.5G  4.1G  27% /mnt/vdo_lv
      

            lvm-team lvm-team
            cmarthal@redhat.com Corey Marthaler
            lvm-team lvm-team
            Cluster QE Cluster QE
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              Created:
              Updated: