Thanks Andreas, The ZFS pools became degraded so I have cold restarted the storage and the OSTs and everything has come back up after about 5 minutes of crash recovery.
Ive also worked out using the lfs_migrate and am emptying the full OST. Is there a tool that cAn specifically check an MDT and its associated OST's? Sid Young On Mon, Nov 1, 2021 at 2:11 PM Andreas Dilger <[email protected]> wrote: > The "D" status means the OST is marked in "Degraded" mode, see the > lfs-df(1) man page. The "lfs check osts" is only checking the client > connection to the OSTs, but whether the MDS creates objects on those OSTs > really depends on how the MDS is feeling about them. > > On Oct 31, 2021, at 19:28, Sid Young via lustre-discuss < > [email protected]> wrote: > > Hi all, > > I have a really odd issue, only 1 OST appears to mount despite there being > 4 OSTS available and ACTIVE. > > [root@hpc-login-01 home]# lfs df -h > UUID bytes Used Available Use% Mounted on > home-MDT0000_UUID 4.2T 40.2G 4.1T 1% /home[MDT:0] > home-OST0000_UUID 47.6T 37.8T 9.8T 80% /home[OST:0] > home-OST0001_UUID 47.6T 47.2T 413.4G 100% /home[OST:1] > D > home-OST0002_UUID 47.6T 35.7T 11.9T 75% /home[OST:2] > home-OST0003_UUID 47.6T 39.4T 8.2T 83% /home[OST:3] > > filesystem_summary: 190.4T 160.0T 30.3T 85% /home > > [root@hpc-login-01 home]# lfs check osts > home-OST0000-osc-ffffa10c8f483800 active. > home-OST0001-osc-ffffa10c8f483800 active. > home-OST0002-osc-ffffa10c8f483800 active. > home-OST0003-osc-ffffa10c8f483800 active. > > Should be 191TB... only shows 1 OST.. > > 10.140.93.42@o2ib:/home *48T * 48T 414G 100% /home > > Where should I look? > > > Cheers, Andreas > -- > Andreas Dilger > Lustre Principal Architect > Whamcloud > > > > > > > >
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