HP IO Accelerator Driver and Management Software Version 2.2.1 Release Notes

Contents 3
Contents
About this guide ........................................................................................................................... 5
Description ............................................................................................................................................... 5
Product models ......................................................................................................................................... 5
Operating systems ..................................................................................................................................... 5
Supported firmware version ........................................................................................................................ 6
Download location .................................................................................................................................... 7
Upgrade information ..................................................................................................................... 8
Upgrading from version 1.2.3 and earlier .................................................................................................... 8
Upgrading from Version 1.2.4 to 1.2.7 ....................................................................................................... 8
Change log .................................................................................................................................. 9
Version 2.2.1 change log .......................................................................................................................... 9
Changes for Version 2.2.1 ......................................................................................................................... 9
Management ............................................................................................................................................ 9
Bug fixes .................................................................................................................................................. 9
Ports ........................................................................................................................................................ 9
New features .......................................................................................................................................... 10
Trim support ........................................................................................................................................... 10
Discard (Trim) on Linux ................................................................................................................... 10
Trim on Windows .......................................................................................................................... 11
Errata ........................................................................................................................................ 12
Errata overview ....................................................................................................................................... 12
General issues ........................................................................................................................................ 12
Avoid unmanaged shutdown ........................................................................................................... 12
IO Accelerator uses host memory to operate ..................................................................................... 12
Periodic latency bump .................................................................................................................... 12
IO Accelerator is not bootable ........................................................................................................ 13
Compiler Cache (ccache) causes driver src.rpm rebuild failures on some distributions ............................ 13
fio-update-iodrive shows strange version number ............................................................................... 13
Reported power usage from fio-status might be incorrect for IO Accelerator Monos ................................ 13
LED indicators do not operate properly ............................................................................................. 13
fio-update-iodrive shows wrong version number ................................................................................. 14
Linux-specific issues ................................................................................................................................. 14
Linux MD RAID5 performs poorly ..................................................................................................... 14
Drivers not installed after updating kernel ......................................................................................... 14
Rare error on driver unload using kernels older than 2.6.24 ............................................................... 14
ext4 in Kernel.org 2.6.33 or earlier might silently corrupt data when discard (trim) is enabled ................ 14
Driver might not autoload in some distributions .................................................................................. 15
RHEL4 2.6.9-22 kernel does not work with 320GB IO Accelerators ..................................................... 15
Modinfo module parameters not reported under RHEL4 ...................................................................... 15
Source rpm build fails in Chaos 4.3 with ccache enabled ................................................................... 16
Kernels 2.6.34/35 don't handle switching interrupt types ................................................................... 16
Windows-specific issues ........................................................................................................................... 16
Conversion to GPT or Dynamic disk terminates Logical Disk Manager Administrative Service .................. 16
Windows Installer (DLL) errors ......................................................................................................... 17