Dell DX6004S Manuale di installazione e configurazione - Pagina 13

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Dell DX6004S Manuale di installazione e configurazione
that the CSN's local time server is less than 15 layers separated from a reliable source and is
therefore reliable enough to serve as an NTP server for the DX Storage on the internal network.

2.5. CSN Hardware Validation

With every boot of the CSN after the initial install, the CSN software checks the validity of the
host hardware. Unauthorized hardware will fail to boot after printing the following error: 'CSN was
unable to authorize the hardware license for this server'. Administrators who receive environment
validation errors for CSN hardware that is believed to be authorized should contact their support
representative.

2.6. Upgrading the CSN

The CSN supports upgrade from one software version to the next via a script process similar to
initial installation. The CSN will not be functional during the upgrade and will need to be rebooted
after the software is updated so administrators should schedule the upgrade during off peak hours
to ensure DX Storage and DX Content Router activities are not disrupted.
Cancellation of the upgrade mid-process (via Ctrl-C) is not supported and will be prevented if
attempted. If a network or hardware outage interrupts the upgrade, administrators should use the
csn-reset functionality to restore the previous software version and then attempt the upgrade again.
If csn-reset followed by a reinstall does not work for some reason, please contact your support
representative for alternate instructions.
If upgrading a previously installed CSN to a new version, the following steps should be taken:
1. Upgrade the CSN's operating system to RHEL 5.5 if it has not already been upgraded. Similar to
the initial installation, a Red Hat yum repository must be configured and available for upgrade to
proceed.
2. Remove any multi-server configurations that were manually added to the custom
sn<macaddress>.cfg files as multi-server is now automatically configured on the CSN. Please
contact your support representative if you are unsure how or where to do this.
3. Ensure a license file has been published to the DX Storage cluster. Upgrading the software
without fully configuring it first (i.e. installing 1.0 and then immediately installing 2.0 without
configuration) is not supported.
4. Upgrade the CSN software using the same install script and steps described above in the
Installation Steps section. Agree to the reboot option at the end of the installation; the CSN will
not be functional until it has been rebooted. In the interim between upgrade and reboot, the
Netboot component may log errors related to a port conflict. These errors are harmless and will
be resolved with the reboot.
5. From the Netboot page, select the new CAStor version.
6. From the storage console, reboot the DX Storage cluster.
7. Optionally, installations wishing to take advantage of a larger internal network in 2.0 should run
the 'changeinternalnetwork' script described in the Running and Managing Chapter while the
storage cluster is rebooting. Please reference the 'Updating the Internal Interface' section for
complete instructions on updating the internal interface.
After upgrade, no further configuration is required; all existing configuration and service states are
preserved from their previously configured values.
Copyright © 2010 Caringo, Inc.
All rights reserved
10
Version 2.0
December 2010