Hi. PC in question is running Windows Server 2003 (no service packs installed) and has a mixture of ATA and SATA drives installed. The motherboard is an ABIT IC7-G which provides 2 ATA channels (up to four devices), 2 SATA channels in the ICH5 chipset and an additional 2 SATA channels on a Silicon Image on-board raid chip/controller. Additionally a FastTrack S150 TX2 raid controller is installed in a PCI slot. The machine currently boots from a striped ATA array (raid0) connected to the Promise controller.
I recently purchased 2x Hitachi Deskstar 7K400 (400GB) drives to be implemented as a mirrored array, either via the Silicon Image on-board controller or via the Promise controller.
Whether cabled to the SI or Promise controller the drives are properly detected, partitioned and formatted NTFS without any hitches.
Problem:
If I then try to copy data any of the other drives in the system to the RAID mirror, the copy operation starts off flying and within a second or two grinds almost to a halt (almost like the OS has to stop and think about where/how it is going to write the data), and then resumes copying very slowly - about the same speed as you get reading from a CD to write to a HDD.
As mentioned above, I've tried this through both the Promise and SI controllers and have the same result.
I've run Hitachi's quick test diagnostics onboth drives and they checkout fine.
Has anyone else come across this problem or have any ideas as to where the problem may lie?
I recently purchased 2x Hitachi Deskstar 7K400 (400GB) drives to be implemented as a mirrored array, either via the Silicon Image on-board controller or via the Promise controller.
Whether cabled to the SI or Promise controller the drives are properly detected, partitioned and formatted NTFS without any hitches.
Problem:
If I then try to copy data any of the other drives in the system to the RAID mirror, the copy operation starts off flying and within a second or two grinds almost to a halt (almost like the OS has to stop and think about where/how it is going to write the data), and then resumes copying very slowly - about the same speed as you get reading from a CD to write to a HDD.
As mentioned above, I've tried this through both the Promise and SI controllers and have the same result.
I've run Hitachi's quick test diagnostics onboth drives and they checkout fine.
Has anyone else come across this problem or have any ideas as to where the problem may lie?