HP XP P9500 Storage - Manual (Page 181)

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VxVM
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Sun StorageTek Traffic Manager software (or, in Solaris 10, the
Solaris multipathing software MPxIO)
Configuring a Mirrored Boot Disk Environment Incorporating
SVM
A mirrored boot disk incorporating SVM can be managed by HDLM.
The following configuration is supported:
• OS: Solaris 10
• RAID level: Mirroring (no more than three mirrors)
• Cluster: None
Precautions
• When you use the dlmsetconf utility, do not specify the -r option. If the
-r option is specified, the instance number (the minor number of the
HDLM device) is changed, and the metadevice can no longer be used.
• After Placing the Boot Disks Under HDLM Management by Installing HDLM
to a Mirrored Boot Disk Environment Incorporating SVM on page 3-120 is
performed, the boot disk in the pre-migration environment cannot be
used.
• After Removing HDLM on page 3-127 in this document is performed, the
boot disk in the pre-migration environment cannot be used.
• When maintaining the device that the path of the boot disk environment
uses while using Solaris, note the following:
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Ensure that at least one path connected to the boot disk is online
when you perform a maintenance task.
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Before starting maintenance, for any path that you expect to be
disconnected during the maintenance operation, execute the dlnkmgr
command with the offline option to set the path to the Offline(C)
status.
If you do not change the status and a path disconnection is detected
during the maintenance, access to the boot disk will be temporarily
delayed. As a result, the system performance might decrease. After you
finish maintenance, immediately execute the dlnkmgr command with the
online option to set the paths (that you set to Offline(C)) to Online.
• For details about the action to take if there is a path error in the boot disk
environment, see Actions to Take for a Path Error in a Boot Disk
Environment on page 5-6 .
• In the boot disk environment, Solaris cannot be upgraded. If Solaris
needs to be upgraded, perform the following:
Creating an HDLM Environment
3-115
Hitachi Dynamic Link Manager User Guide for Solaris ®