Various hardware components can be activated and deactivated for operational or maintenance purpose.
There are some operational scenarios in which the cluster must be powered down. First deactivate the cluster before powering down to render the restarting process easier. Deactivation enables a graceful shutdown of the cluster. For information on powering down a cluster, see Safely Power Down a VAST Cluster.
-
Connect to the VAST Web UI. From the menu, (click
) select Infrastructure > Cluster. -
Select
at the right side of the cluster to deactivate, and then select Deactivate.
-
Connect to the VAST Web UI. From the menu, (click
) select Infrastructure > Cluster. -
Select
at the right side of the cluster to activate, and then select Activate.
To deactivate the cluster from the VAST CLI, run:
cluster deactivate --id <ID>
To obtain the ID, run the cluster list command.
To activate a cluster:
cluster activate --id <ID>
You can deactivate a CNode before you power down the CNode for any operational reason that requires a reboot of the CNode.
-
Connect to the VAST Web UI. From the menu, (click
), select Infrastructure > DNode. -
Select
at the right side of the DNode to deactivate, and then select (
) Deactivate.
-
Connect to the VAST Web UI. From the menu, (click
), select Infrastructure > DNode. -
Select
at the right side of the DNode to activate, and then select (
) Activate.
Deactivate the DNode via the VAST CLI by running:
dnode deactivate --id <ID>
To obtain the ID, run the dnode list command.
dnode activate --id <ID>
You can deactivate a DTray before you power down the DTray for any operational reason that requires a reboot of the DTray.
-
Connect to the VAST Web UI. From the menu, (click
), select Infrastructure > DTrays. -
Select
at the right side of the DTray to deactivate, and then select () Deactivate.
-
Connect to the VAST Web UI. From the menu, (click
), select Infrastructure > DTray. -
Select
at the right side of the Dtray to activate, and then select () Activate.
Deactivate the DTRay via the VAST CLI by running:
dtray deactivate --id <ID>
To obtain the ID, run the dtray list command.
To activate a DTray:
dtray activate --id <ID>
Warning
VIP Pools are required to have a minimum of 2 CNodes active, If all CNodes in a VIP Pool must be deactivated, contact support for guidance, or either disable or delete the pool.
Caution
When deactivating CNodes, make sure to maintain the following ratios to maintain cluster viability and data availability:
-
For larger clusters, at least 1 fully operational CNode must be available for every 20 operational DNodes.
-
For smaller clusters, at least 2 fully operational CNodes must be available.
You can deactivate a CNode before you power down the CNode for any operational reason that requires a reboot of the CNode.
-
Connect to the VAST Web UI. From the menu, (click
), select Infrastructure > CNode. -
Select
at the right side of the CNode to deactivate, and then select () Deactivate.
-
Connect to the VAST Web UI. From the menu, (click
), select Infrastructure > CNode. -
Select
at the right side of the CNode to activate, and then select () Activate.
Deactivate a CNode via the VAST CLI by running:
cnode deactivate --id <ID>
To obtain a CNode's ID, use the cnode list command.
cnode activate --id <ID>
You must deactivate an NVRAM before you power it down for replacement, to prevent a data rebuild from occurring. Deactivation removes the NVRAM from the storage pool and copies the data on the defective NVRAM to other NVRAMs in the storage pool.
-
Connect to the VAST Web UI. From the menu, (click
), select Infrastructure > NVRAMs. -
Select
at the right side of the NVRAM to deactivate, and then select () Deactivate.
-
Connect to the VAST Web UI. From the menu, (click
), select Infrastructure > NVRAMs. -
Select
at the right side of the NVRAM to activate, and then select () Activate.
Deactivate the CNode via the VAST CLI by running:
NVRAM deactivate --id <ID>
To obtain the ID, run the NVRAM list command.
Note
The NVRAM ID may change after you deactivate the NVRAM, so run the NVRAM list command again to determine the correct NVRAM ID before activation.
To activate an NVRAM:
NVRAM activate --id <ID>
Replacing a failed SSD involves removing the SSDs or the SSD slots from the CERES DBox, which could cause a data rebuild to occur, resulting in degraded performance.
You can avoid degrading the performance by deactivating the SSDs, or both the SSDs in the SSD slot before removal. Deactivating copies the data from the defective SSDs to other SSDs and stops the cluster from using the defective SSDs. When you remove a deactivated SSD or SSD tray, no data rebuild occurs and there is no impact on the cluster's performance.
Deactivate the carrier in advance of replacing the failed SSD via VAST CLIor VAST Web UI.
Deactivation may take several hours and removes the SSD's capacity from the cluster.
Note
Initiate deactivation approximately 24 hours prior to a scheduled SSD replacement to be sure the deactivation completes before the replacement.
After you re-insert the SSD into the chassis, you'll need to activate the SSD to restore its capacity to the cluster.
-
Connect to the VAST Web UI. From the menu, (click
), select Infrastructure > SSDs to deactivate any E1.L SSD. To deactivate an NVRAM SSD, select Infrastructure > Slots. Select at the right side of the SSD to deactivate, and then select Deactivate.
You can also select Hardware Layout, where you select the necessary SSD from a graphical view and click
in the right pane to deactivate it. To select an NVRAM SSD to deactivate, select the necessary slot and click for all the SSDs in the slot. This deactivates all the NVRAM SSDs in the slot. You can also turn on the slot's LED to identify the correct slot to remove. You'll only get an update message if you initiated the task from the Maintenance page.
-
-
Click Yes to confirm you want to deactivate the SSD.
Deactivation commences and the progress is displayed in the Activities page, which you can navigate to from the menu.
If you initiated the task from the Maintenance page, the Activities icon appears at the top of the page, showing that the deactivation task is in progress. When the task is complete, a message appears at the bottom right of the page.
To activate an SSD, select Hardware Layout from the menu and click the activate button (
) for the necessary SSD. You can activate any SSD from Infrastructure > SSD or Infrasturcture > Slots.
The activation task commences and the progress is displayed in the Activities page, which you can access from the menu.
If you know the ID of the carrier (carrier), you can deactivate it via the VAST CLI by running:
carrier deactivate --id <ID>
Similarly for an SSD:
ssd deactivate --id <ID>
To view the the carrier IDs, run:
carrier list [--state UNKNOWN|HEALTHY|FAILED] [--dbox-name <dbox-name>] [--dbox-id <dbox-id>]
|
Optional Argument |
Description |
|---|---|
|
|
Filter by state. |
|
|
Filter by name of DBox. |
|
|
Filter by ID of DBox |
To view the SSD IDs, run:
ssd list [--state ACTIVE|FAILED|INACTIVE] [--dbox-name <dbox-name>] [--dbox-id <dbox-id>] [--fw-version <firmware_version>]
To activate a carrier:
carrier activate --id <ID>
ssd activate --id <ID>
Replacing a failed SSD or NVRAM involves removing the SSD or NVRAM from the Mavericks DBox, which could cause a data rebuild to occur, resulting in degraded performance.
You can avoid degrading the performance by deactivating the SSD, NVRAM, or the SSD slot before removing the SSD or NVRAM. Deactivating a slot deactivates both SSDs in the slot or the single NVRAM in the slot. Deactivating copies the data from the defective SSDs or NVRAM to other SSDs or NVRAMs and stops the cluster from using the defective SSD or NVRAM. When you remove a deactivated SSD or NVRAM, no data rebuild occurs and there is no impact on the cluster's performance.
Deactivate the SSD or NVRAM in advance of replacement via the VAST CLI or the VAST Web UI.
Deactivation may take several hours and removes the SSD's capacity from the cluster.
Note
Initiate deactivation approximately 24 hours prior to a scheduled SSD replacement to be sure the deactivation completes before the replacement.
After you replace the SSD or NVRAM into the slot, activate the SSD or NVRAM to restore its capacity to the cluster.
-
Connect to the VAST Web UI:
To deactivate a slot, select Infrastructure > Slots. Select
at the right side of the necessary slot, then select Deactivate.To deactivate an SSD, select Infrastructure > SSDs. Select
at the right side of the necessary SSD, then select Deactivate.To deactivate an NVRAM, select Infrastructure > NVRAMs. Select
at the right side of the necessary NVRAM, then select Deactivate.Or select Hardware Layout, then select the necessary slot from the graphical view and click
in the right pane to deactivate it. You can deactivate all the SSDs in a slot or deactivate the 2 SSDs individually. Any slot contains only 1 NVRAM, so deactivating the slot deactivates the NVRAM it contains. You can turn on the slot's LED to identify the correct slot to remove by selecting the LED On option. -
Click Yes to confirm you want to deactivate the Slots, SSD or NVRAM.
Deactivation commences and the progress is displayed in the Activities page, which you can navigate to from the menu.
To activate an SSD, select Hardware Layout from the menu and click the activate button () for the necessary slot, NVRAM or SSD. You can activate any SSD from Infrastructure > SSD or Infrastructure > Slots. You can activate and deactivate NVRAMs and SSDs by directly deactivating them, or by deactivating the slots that contain them.
The activation task commences and the progress is displayed in the Activities page, which you can access from the menu.
Deactivate the slot via the VAST CLI by running:
carrier deactivate --id <ID>
Similarly for an SSD:
ssd deactivate --id <ID>
To deactivate an NVRAM
nvram deactivate --id <ID>
To view the the carrier IDs, run:
carrier list [--state UNKNOWN|HEALTHY|FAILED] [--dbox-name <dbox-name>] [--dbox-id <dbox-id>]
|
Optional Argument |
Description |
|---|---|
|
|
Filter by state. |
|
|
Filter by name of DBox. |
|
|
Filter by ID of DBox |
To view the SSD IDs:
ssd list [--state ACTIVE|FAILED|INACTIVE] [--dbox-name <dbox-name>] [--dbox-id <dbox-id>] [--fw-version <firmware_version>]
To view the NVRAM IDs
nvram list [--state ACTIVE|FAILED|INACTIVE] [--dbox-name <dbox-name>] [--dbox-id <dbox-id>] [--fw-version <firmware_version>]
To activate a carrier:
carrier activate --id <ID>
ssd activate --id <ID>
To activate an NVRAM
nvram activate --id <ID>
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