Question : nVidia nForce Raid controller embedded in Proliant ML115 G5 Event 129

I have inherited a Proliant ML115 G5 with an onboard nVidia Sata RAID controller. The system performance is (occasionally) very poor and the following event is logged in Event Viewer:

Event ID:129
Source: nvstor
Description: Reset to device, \Device\RaidPort0, was issued.

I have scanned HP for resolution or updated drivers with no success.

The system has 3 disks attached, a 200GB+ system disk and 2 x 950GB+ data disks showing as mirrored in Disk Management.

The 3 disks appear in Device Manager/Disk Drives and there are also 3 entries for the nVidia Serial ATA Controller in Device Manager/IDE ATA/ATAPI controllers.

Answer : nVidia nForce Raid controller embedded in Proliant ML115 G5 Event 129

When performance is "poor", kick off perfmon and configure it to report I/O information.  How poor is poor?   You may very well be getting exactly what you are supposed to get.

You are doing software RAID-1, which is going to outperform the $3.00 RAID SATA controller chip anyway.

If you want better performance, you can probably just get away with buying another SATA controller card and splitting the RAID1 so each disk is on a different controller.  The way you have it now, each disk competes with the others for the privilege of talking to the internal I/O bus.

The device reset could be a lot of things, and I wouldn't expect drivers to affect it.  A system utility or application program can issue a device reset, so depending on the frequency of them, and exactly what gets reported in event monitor, maybe you can see if the reset is the result of a software event.