HP IO Accelerator Driver and Management Software Version 2.2.1 Release Notes

Errata 16
Source rpm build fails in Chaos 4.3 with ccache enabled
By default, Chaos has the ccache package installed. If an attempt is made to build the RPM from source with
ccache enabled, the result is an error message.
Remove or disable ccache before building the driver.
Kernels 2.6.34/35 don't handle switching interrupt types
Linux kernels around 2.6.34/35 might have problems processing interrupts if the driver is loaded using one
interrupt type, unloaded, and then loaded again using a different interrupt type. The primary symptom is that
the IO Accelerator device is unusable and the kernel logs have errors containing doIRQ. For example, the
following sequence on an affected system would likely result in errors:
1. Load the driver with a default of disable_msi=1 which selects APIC interrupts:
$ modprobe iomemory-vsl
$ modprobe -r iomemory-vsl
2. Load the driver and enable MSI interrupts:
$ modprobe iomemory-vsl disable_msi=0
To work around this issue, if you see the error, reboot the system. Also, always load with the same interrupt
type selected. To change between interrupt types, reboot the system first.
Windows-specific issues
The following issues apply only to systems running Windows® operating systems.
Conversion to GPT or Dynamic disk terminates Logical Disk
Manager Administrative Service
This issue appears when:
• Converting a Basic partition to GPT
• Converting a Basic partition to Dynamic Volume
• Switching between GPT and Dynamic Volume or vice versa
When an issue occurs, the following message appears: The Logical Disk Manager Administrative
Service terminated unexpectedly. Restart the Virtual Disk service.
This issue occurs only with Windows Server® 2003 and Windows® XP x64.
If the IO Accelerators are used in GPT or Dynamic mode, the following process must be performed during the
initial setup. This process also recovers drives that have had a failed conversion attempt.
CAUTION: This procedure destroys any existing data on your drives. If you already have data
on a drive, be sure to back it up before proceeding.
For IO Accelerators used in GPT or Dynamic mode:
1. For each IO Accelerator in the system to be converted, use the HP IO Accelerator Management Tool to
a. Detach the drive.