Upgrade path

Depending on the current version of your HP IO Accelerator device, to preserve the internal structure of the device, you might have to perform multiple upgrades. The following path is the minimum upgrade path that you must follow. Upgrade the HP IO Accelerator VSL software on the system, and upgrade the firmware to the compatible version in the following order:

1.2.4 > 1.2.7 > 2.1.0 > 2.2.3 > 3.2.x

For VSL upgrade information for the HP IO Accelerator, see the HP IO Accelerator Release Notes on the HP website (http://www8.hp.com/us/en/support-drivers.html). General upgrade instructions, including the firmware update instructions, are available in the HP IO Accelerator User Guide for each operating system.

Overformatting not supported

The –o overformat option is not supported in the 3.x.x VSL software. All upgraded HP IO Accelerator devices are formatted to the maximum advertised capacity, regardless of whether the device was overformatted prior to the upgrade.

Upgrading procedure

Be sure to follow the upgrade path and make sure that all previously installed IO Accelerator devices are updated with the appropriate 3.2.3-compatible firmware.

If you plan to use IO Accelerator Gen1 devices and IO Accelerator Gen2 devices in the same host, perform this upgrade on all existing IO Accelerator Gen1 devices before installing the new IO Accelerator Gen2 devices.

1.Prepare each existing IO Accelerator device for upgrade: a. Backup user data on each IO Accelerator device.

CAUTION: Upgrading IO Accelerator devices that were previously configured for VSL 1.x.x or 2.x.x to work with VSL 3.x.x requires a low-level media format of the device. No user data is maintained during the media format process. Be sure to backup all data on your IO Accelerator device as instructed before upgrading the firmware.

Do not back up the data onto another IO Accelerator device on the same system. The backup must be to a local disk or to an externally attached volume.

b.Run the fio-bugreportcommand-line utility and save the output. This output captures the device information for each device in the system. This device information will be useful in troubleshooting any upgrade issues. For example:

fio-bugreport

c.Detach the IO Accelerator devices. For example: fio-detach /dev/fct*

For more information, see "fio-detach(on page 42)."

2.Unload the current IO Accelerator driver. For example: $ modprobe -riomemory-vsl

3.Uninstall the 2.x HP IO Accelerator VSL software.

a.To uninstall the software, specify the kernel version of the package you are uninstalling. Run the following command to find the installed packages:

$ rpm -qa grep -i iomemory

Software installation 16