6.7

Table 17‑6. Storage Filters (Continued)
Filter Name Description
config.vpxd.filter.sameHostsAndTransp
ortsFilter
(Same Hosts and Transports Filter)
Filters out LUNs ineligible for use as VMFS datastore extents because of host or storage
type incompatibility. Prevents you from adding the following LUNs as extents:
n
LUNs not exposed to all hosts that share the original VMFS datastore.
n
LUNs that use a storage type different from the one the original VMFS datastore
uses. For example, you cannot add a Fibre Channel extent to a VMFS datastore on a
local storage device.
config.vpxd.filter.hostRescanFilter
(Host Rescan Filter)
Automatically rescans and updates VMFS datastores after you perform datastore
management operations. The filter helps provide a consistent view of all VMFS datastores
on all hosts managed by vCenter Server.
Note If you present a new LUN to a host or a cluster, the hosts automatically perform a
rescan no matter whether you have the Host Rescan Filter on or off.
Set Up Dynamic Disk Mirroring
Typically, you cannot use LUN manager software on virtual machines to mirror virtual disks. However, if
your Microsoft Windows virtual machines support dynamic disks, you can mirror virtual disks across two
SAN LUNs. Mirroring helps you to protect the virtual machines from an unplanned storage device loss.
Prerequisites
n
Use a Windows virtual machine that supports dynamic disks.
n
Required privilege: Advanced
Procedure
1 Create a virtual machine with two virtual disks.
Place the disks on different datastores.
2 Log in to your virtual machine and configure the disks as dynamic mirrored disks.
See Microsoft documentation.
3 After the disks synchronize, power off the virtual machine.
4 Change virtual machine settings to enable the dynamic disk mirroring.
a Right-click the virtual machine and select Edit Settings.
b Click the VM Options tab and expand the Advanced menu.
c Click Edit Configuration next to Configuration Parameters.
vSphere Storage
VMware, Inc. 192