Replacing a Lenovo Storage V7000 Gen2 node canister

To replace a faulty node canister with a new one received from CRU or FRU stock, use this procedure. When replacing a node canister, aim to maximize drive and system availability by maintaining one online node in the control enclosure with the faulty node canister. If you cannot maintain at least one node canister online in the system, then you might need to follow the system recovery procedure after replacing the faulty node canister.

1. Follow Procedure: Removing a Lenovo Storage V7000 Gen2 node canister to remove the faulty node canister.
2. Remove the lid of the faulty canister, as described in Procedure: Removing and replacing the lid of a Lenovo Storage V7000 Gen2 node canister. Do the same to the replacement canister.
3. Some components inside the faulty node canister must be transferred to the replacement canister. Transfer each of the following components as necessary:
   • The battery, as described in Replacing the battery in a Lenovo Storage V7000 Gen2 node canister.
   • The host interface adapters in one control enclosure, as described in Replacing a Lenovo Storage V7000 Gen2 host interface adapter.
   • Memory modules, as described in Replacing a Lenovo Storage V7000 Gen2 node canister memory module (16 GB DIMM).
   • The compression pass-through adapter or compression accelerator, as described in the installation description of upgrading the hardware to install the compression accelerator.
4. Replace the lid of the faulty canister and the lid of the replacement canister, as described in Procedure: Removing and replacing the lid of a Lenovo Storage V7000 Gen2 node canister.
5. Open the release lever of the replacement canister.
6. Push the replacement canister into the slot of the enclosure that the faulty canister was removed from, until it stops.
7. Finish inserting the replacement canister by closing its release lever so that the orange latch engages the enclosure.
8. If the enclosure is powered and the canister is correctly installed, the canister starts automatically. Repeat from step 5, if the canister is not correctly installed.
9. Reinsert the data cables into the ports that they were originally connected.
10. If no node canisters are online, the system is not online. To recover the system in the case when no node canisters are online, see Recover system procedure.
11. If only the replacement node is in service state with node error 503, apply Procedure: Rescuing Lenovo Storage V7000 Gen2 node canister software from another node (node rescue) to rescue the replacement node canister.
12. When the node canister is powered up, it is automatically added to the system and the system automatically ensures that the machine code version on the new canister matches that of the other node canister in the control enclosure. This is reflected in the system event log.
13. When the canister is back online, check the event log for any new events that might indicate a problem with the reassembly.