Hello, I am seeing some rather odd behavior when using Linux (I've tried 2.6.30.10, 2.6.34.7, and 2.6.35.6, all with the same results) under the Hyper-V virtualization platform. Specifically, the virtual IDE disks probe as "ATA-0", which seems to turn off 48-bit LBA, thus capping the disk size at 128GB. This seems to have worked properly (at least in the sense that the full size of the disk was visible) on kernel 2.6.27.41. See http://www.serverphorums.com/read.php?12,79638 In any event, this is how the virtual disk shows up at boot: Oct 15 11:06:06 localhost kernel: ata1.01: ATA-0: Virtual HD, 1.1.0, max MWDMA2 Oct 15 11:06:06 localhost kernel: ata1.01: 267382800 sectors, multi 128: LBA hdparm -I /dev/sdb says: /dev/sdb: ATA device, with non-removable media Model Number: Virtual HD Serial Number: Firmware Revision: 1.1.0 Standards: Likely used: 2 Configuration: Logical max current cylinders 16383 65535 heads 16 16 sectors/track 63 255 -- bytes/track: 65024 bytes/sector: 512 CHS current addressable sectors: 267382800 LBA user addressable sectors: 267382800 Logical/Physical Sector size: 512 bytes device size with M = 1024*1024: 130558 MBytes device size with M = 1000*1000: 136899 MBytes (136 GB) cache/buffer size = 64 KBytes (type=DualPortCache) Capabilities: LBA, IORDY(can be disabled) Buffer size: 64.0kB Standby timer values: spec'd by Vendor R/W multiple sector transfer: Max = 128 Current = 128 DMA: sdma0 sdma1 sdma2 mdma0 mdma1 *mdma2 Cycle time: min=120ns recommended=120ns PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=333ns IORDY flow control=120ns Can someone suggest a direction to go in next? Thanks very much, David -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
