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vm:proxmox:disaster_recovery [2024/01/15 11:51] – niziakvm:proxmox:disaster_recovery [2024/02/12 08:26] (current) – niziak
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 CEPH OSD will be created from scratch to force to rebuild OSD DB (which can be too big due to metadata bug from previous version of CEPH) CEPH OSD will be created from scratch to force to rebuild OSD DB (which can be too big due to metadata bug from previous version of CEPH)
  
 +Replace NVM.
  
 +Recreate partitions or restore from backup <code bash>sgdisk -l nvm.sgdisk /dev/nvme0n1</code>
 +  * swap
 +  * rpool_zil
 +  * hddpool_zil
 +  * hddpool_l2arc
 +  * ceph_db (for 4GB ceph OSD create 4096MB+4MB)
 +
 +Add ZILs and L2ARCs.
 +
 +Start ''nvmpool'': <code bash>zpool import nvmpool</code>
 +
 +Move ''nvmpool'' to new NVM partition:
 +<code bash>
 +zpool attach nvmpool zd16 426718f1-1b1e-40c0-a6e2-1332fe5c3f2c
 +zpool detach nvmpool zd16
 +</code>
  
 ===== Replace rpool device ===== ===== Replace rpool device =====
Line 85: Line 102:
 </code> </code>
  
 +<code bash>
 +zpool attach rpool ata-SPCC_Solid_State_Disk_XXXXXXXXXXXX-part3 /dev/disk/by-id/ata-SSDPR-CL100-120-G3_XXXXXXXX-part3
 +zpool offline rpool ata-SSDPR-CX400-128-G2_XXXXXXXXX-part3
 +zpool detach rpool ata-SSDPR-CX400-128-G2_XXXXXXXXX-part3
 +</code>
  
 ===== Migrate VM from dead node ===== ===== Migrate VM from dead node =====