Dell PowerVault MD3600f Hardware Installation And Troubleshooting Manual page 64
Storage arrays with
microsoft windows server
failover clusters
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Also See for PowerVault MD3600f:
- Owner's manual (318 pages) ,
- Getting started (222 pages) ,
- Getting started with (107 pages)
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CAUTION:
cluster at any point of time. The Snapshot Virtual Disk is not managed by Failover
Cluster Manager, so mapping the Snapshot Virtual Disk to the host group or both
nodes in the cluster may allow both nodes to access data concurrently and thus
cause data corruption.
You can use a Microsoft Volume Shadow-copy Service (VSS) application to
create and map snapshots. If you are using MDSM instead, you must follow
the procedures described below.
To map the Snapshot Virtual Disk to the primary node:
1 Use Host-to-Virtual Disk Mapping in the Modular Disk Storage Manager.
This ensures that a different disk signature is assigned properly to the
Snapshot Virtual Disk.
2 Use Windows Disk Management to re-scan for the Snapshot Virtual Disk,
assign the drive letter, and start accessing the drive.
NOTE:
Disk to be detected by Windows Disk Management. If the Snapshot Virtual
Disk is not detected, wait for a few minutes and re-scan the disks. Repeat the
process until the Snapshot Virtual Disk is detected; do not reboot the server.
To map the Snapshot Virtual Disk to the secondary node (the node not
owning the source disk):
CAUTION:
to obtaining the signature from the primary node, may cause the operating system
to misidentify the Snapshot Virtual Disk as an existing system volume and that may
result in data loss or an inaccessible Snapshot Virtual Disk.
1 Map the Snapshot Virtual Disk to the primary node to ensure that the
snapshot is assigned a new disk signature.
2 Use Modular Disk Storage Manager to unmap the Snapshot Virtual Disk
from the primary node.
3 Map the Snapshot Virtual Disk to the secondary node and start accessing
it.
NOTE:
For a cluster configuration with multiple Snapshot Virtual Disks, each virtual
disk must be mapped to the node owning the associated source disk first. The
primary node for a Snapshot Virtual Disk may not be the primary node for another
Snapshot Virtual Disk.
64
Preparing Your Systems for Clustering
Avoid mapping the Snapshot Virtual Disk to more than one node in the
The disks may be re-scanned several times for the Snapshot Virtual
Attempts to map the Snapshot Virtual Disk to the secondary node, prior
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