HP StorageWorks Clustered Gateway (software-only) 3.6.0 Windows Storage Server Edition Upgrade Guide (433702-002, January 2008)

Chapter 5: Post-Upgrade Steps 31
on the filesystem. After the volume and the filesystem are
recreated, you can manually restore the data from your
backup.
To recreate a concatenated dynamic volume, take these steps:
1. Back up the data on the volume.
2. Recreate the dynamic volume. On the HP CFS Management Console,
select Storage > Dynamic Volume > Recreate and then choose the
volume that you want to recreate. You can change or reorder the
subdevices used for the volume if desired.
To recreate the volume from the command line, first run the
dynvolume destroy command and then run the dynvolume create
command.
mx dynvolume destroy <volumeName>
mx dynvolume create <subDeviceName,subDeviceName,...>
3. Create a new filesystem on the volume. On the HP CFS Management
Console, select Cluster > Add > Add Filesystem. Select the recreated
volume on the Create Filesystems window and set the appropriate
filesystem options.
To create the filesystem from the command line, use either the mx fs
create command or the psfsformat command. See the HP Clustered File
System Administration Guide for details about these commands.
4. Restore the filesystem data to the new dynamic volume.
Remove Custom Setting for GcTrimLevel
In previous releases of HP Clustered File System, there have been
recommendations to add a registry setting for GcTrimLevel to restrict the
amount of Windows pool memory consumed by the product. In HP
Clustered File System 3.6, a new tunable GcTrimMax has been added that
caps the maximum number of FCBs that the product will cache (the
default is 10,000). With the new settings, the defaults should be suitable
for all but the most unusual workloads. HP advises customers to remove
any custom setting of GcTrimLevel after upgrading to HP Clustered File
System 3.6.