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Devices to be removed from vxvm -155 – HP XP P9500 Storage User Manual

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Devices to Be Removed from VxVM

The following figure shows devices that are recognized by VxVM before they

are disabled.

Figure 3-23 Devices That Are Recognized by VxVM before They Are

Removed from VxVM

You must remove the following non-HDLM devices that are recognized by

VxVM. If the following devices are being managed by VxVM, HDLM functions,

such as load balancing and failover, will not work normally.

sd or ssd devices (c3t0d0, c4t1d0)
When an HDLM device is created, the logical device file of the

corresponding sd or ssd device will be deleted. However, VxVM recognizes

the sd or ssd device as still existing even if the logical device file was

deleted.

HDLM devices assumed by VxVM (c6t1d0)
Devices that VxVM virtually recognizes as HDLM devices. These devices

are not actually created.
Only one HDLM device is created for one LU

#

. However, for one LU, VxVM

recognizes the same number of HDLM devices as the number of physical

paths.

Creating an HDLM Environment

3-155

Hitachi Dynamic Link Manager User Guide for Solaris

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