HP MSA 1040 HP MSA 1040 SMU Reference Guide (762784-001, March 2014) - Page 133

Stopping a vdisk, To detach a secondary volume, To stop a vdisk

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NOTE: • It is recommended that the vdisk that you are moving contains only secondary volumes and their snap pools. You are allowed to move other volumes along with secondary volumes and their snap pools, but be sure that you are doing so intentionally. • If you intend to move a vdisk's enclosure and you want to allow I/O to continue to the other enclosures, it is best if it is at the end of the chain of connected enclosures. If the enclosure is in the middle of the chain, the enclosures must be cabled with no single point of failure, so that removing the enclosure does not prevent communication between other enclosures. To detach a secondary volume 1. In the Configuration View panel, right-click the secondary volume and select Provisioning > Detach Replication Volume. 2. In the main panel, click Detach Replication Volume. A message indicates whether the task succeeded or failed. When a volume is detached its status is shown as Detached. Stopping a vdisk Stopping a vdisk is part of the process for moving a secondary volume into a secondary system. The process to move a secondary volume is: 1. In the system where the secondary volume resides: a. Detach the secondary volume. For details see "Detaching a secondary volume" (page 132). b. If the secondary volume's vdisk contains other secondary volumes, detach those volumes. c. Stop the secondary volume's vdisk. d. If the secondary volumes' snap pools are in other vdisks, stop those vdisks. e. Move the vdisks into the secondary system. This system must support the link type that the replication set is configured to use. For example, if the replication set's link type is configured to use FC links, the secondary system must have FC ports. 2. In the secondary system: a. Start the snap pools' vdisks. For details see "Starting a vdisk" (page 134). b. Start the secondary volumes' vdisks. c. Reattach the secondary volumes. For details see "Reattaching a secondary volume" (page 134). Before stopping a vdisk, ensure that all secondary volumes that it contains are detached. When a vdisk is stopped: • The volumes in the vdisk become inaccessible to hosts. • Its cached data is flushed to disk. • Removing its disks will not cause the system to report errors or to attempt reconstruction. NOTE: You cannot stop a vdisk that contains a primary volume. NOTE: If a secondary volume and its snap pool are in different vdisks, you cannot stop the snap pool's vdisk until you stop the secondary volume's vdisk. To stop a vdisk 1. In the Configuration View panel, right-click the vdisk and select Provisioning > Stop Vdisk. 2. In the main panel, click Stop Vdisk. A confirmation prompt appears. Stopping a vdisk 133

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Stopping a vdisk
133
NOTE:
•
It is recommended that the vdisk that you are moving contains only secondary volumes and their snap pools. You
are allowed to move other volumes along with secondary volumes and their snap pools, but be sure that you are
doing so intentionally.
•
If you intend to move a vdisk’s enclosure and you want to allow I/O to continue to the other enclosures, it is best
if it is at the end of the chain of connected enclosures. If the enclosure is in the middle of the chain, the enclosures
must be cabled with no single point of failure, so that removing the enclosure does not prevent communication
between other enclosures.
To detach a secondary volume
1.
In the Configuration View panel, right-click the secondary volume and select
Provisioning > Detach Replication
Volume
.
2.
In the main panel, click
Detach Replication Volume
. A message indicates whether the task succeeded or failed.
When a volume is detached its status is shown as Detached.
Stopping a vdisk
Stopping a vdisk is part of the process for moving a secondary volume into a secondary system. The process to move
a secondary volume is:
1.
In the system where the secondary volume resides:
a.
Detach the secondary volume. For details see
"Detaching a secondary volume" (page 132)
.
b.
If the secondary volume’s vdisk contains other secondary volumes, detach those volumes.
c.
Stop the secondary volume’s vdisk.
d.
If the secondary volumes’ snap pools are in other vdisks, stop those vdisks.
e.
Move the vdisks into the secondary system. This system must support the link type that the replication set is
configured to use. For example, if the replication set’s link type is configured to use FC links, the secondary
system must have FC ports.
2.
In the secondary system:
a.
Start the snap pools’ vdisks. For details see
"Starting a vdisk" (page 134)
.
b.
Start the secondary volumes’ vdisks.
c.
Reattach the secondary volumes. For details see
"Reattaching a secondary volume" (page 134)
.
Before stopping a vdisk, ensure that all secondary volumes that it contains are detached. When a vdisk is stopped:
•
The volumes in the vdisk become inaccessible to hosts.
•
Its cached data is flushed to disk.
•
Removing its disks will not cause the system to report errors or to attempt reconstruction.
NOTE:
You cannot stop a vdisk that contains a primary volume.
NOTE:
If a secondary volume and its snap pool are in different vdisks, you cannot stop the snap pool’s vdisk until
you stop the secondary volume’s vdisk.
To stop a vdisk
1.
In the Configuration View panel, right-click the vdisk and select
Provisioning > Stop Vdisk
.
2.
In the main panel, click
Stop Vdisk
. A confirmation prompt appears.