HP IO Accelerator Driver and Management Software Version 3.2.3 Release Notes

Change log 16
Issue: The reported memory in fio-status used by the IO Accelerator VSL version 3.2.2 for each
device grew each time a device was reattached. Actual memory used was not affected.
Resolution: Reported memory usage now remains as expected every time a device is reattached.
• Interrupt affinity not working in the Windows OS
Issue: The interrupt affinity did not work in the Windows OS even when the operating system reports
that the affinity was set.
Resolution: The IO Accelerator VSL software now uses the interrupt affinity settings and the affinity works
as expected.
• Performance with large block sizes in VMware environments
Issue: IO Accelerator performance was negatively affected when using large device block sizes
(>128K) in VMware hypervisors, especially in servers with multiple sockets.
Resolution: Performance is now improved in VMware environments when using large block sizes.
Fixed issues affecting other software:
• Caching devices becoming inaccessible
Issue: While running directCache with VSL software and Windows operating systems, a memory
reporting error caused bound devices to become inaccessible.
Resolution: The VSL software no longer has a memory reporting error.
• Unable to bind to partitions
Issue: directCache is unable to bind to a partition on an IO Accelerator device and returns an invalid
device error.
Resolution: directCache now binds to partitions on IO Accelerator devices.
• fio-status utility hanging on high throughput
Issue: When fio-status is run on multiple bound devices (using directCache) during high
throughput, the fio-status utility hangs until the high I/Os stop.
Resolution: The utility no longer hangs during periods of high throughput.
• Benign but alarming error message
Issue: A failed assertion message appeared with the dc-disable utility output. You could safely
ignore this message.
Resolution: The message no longer appears.
• fio-agent does not initialize in CentOS
Issue: The fio-agent service failed to load the shared VSL library (libvsl) on CentOS and therefore
failed to initialize.
Resolution: The library now initializes on all supported platforms.
3.2.2 change log
In addition to various improvements, the following are changes made to the IO Accelerator VSL Software
from 3.1.5 to 3.2.2, including:
• Expanded operating system support, see Supported Operating Systems. For more information, see
"Supported operating systems (on page 8)."