January 26, 200917 yr I have a ECS A740GM-M with two Maxtor 6L300R0 that support UDMA6 / 133 Mhz. The bios detects this correctly also, but unraid is only running them at UDMA5 / 100Mhz. When I used these drives in another motherboard, UNRAID correctly configured them to UDMA6 / 133Mhz. I would like to get these drives working at UDMA 6. Any tips are appreciated. Here is the drive info: /dev/hdd: ATA device, with non-removable media Model Number: Maxtor 6L300R0 Serial Number: L6202NHG Firmware Revision: BAJ41G20 Standards: Used: ATA/ATAPI-7 T13 1532D revision 0 Supported: 7 6 5 4 & some of 8 Configuration: Logical max current cylinders 16383 16383 heads 16 16 sectors/track 63 63 -- CHS current addressable sectors: 16514064 LBA user addressable sectors: 268435455 LBA48 user addressable sectors: 586114704 device size with M = 1024*1024: 286188 MBytes device size with M = 1000*1000: 300090 MBytes (300 GB) Capabilities: LBA, IORDY(can be disabled) Standby timer values: spec'd by Standard, no device specific minimum R/W multiple sector transfer: Max = 16 Current = 16 Advanced power management level: disabled Recommended acoustic management value: 192, current value: 254 DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 udma6 Cycle time: min=120ns recommended=120ns PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=120ns IORDY flow control=120ns Commands/features: Enabled Supported: * SMART feature set Security Mode feature set * Power Management feature set * Write cache * Look-ahead * Host Protected Area feature set * WRITE_VERIFY command * WRITE_BUFFER command * READ_BUFFER command * NOP cmd * DOWNLOAD_MICROCODE Advanced Power Management feature set SET_MAX security extension * Automatic Acoustic Management feature set * 48-bit Address feature set * Device Configuration Overlay feature set * Mandatory FLUSH_CACHE * FLUSH_CACHE_EXT * SMART error logging * SMART self-test Media Card Pass-Through * General Purpose Logging feature set * WRITE_{DMA|MULTIPLE}_FUA_EXT * URG for READ_STREAM[_DMA]_EXT * URG for WRITE_STREAM[_DMA]_EXT * SMART Command Transport (SCT) feature set * SCT Data Tables (AC5) Security: Master password revision code = 65534 supported not enabled not locked frozen not expired: security count not supported: enhanced erase HW reset results: CBLID- above Vih Device num = 1 determined by CSEL Checksum: correct
January 26, 200917 yr I have a ECS A740GM-M with two Maxtor 6L300R0 that support UDMA6 / 133 Mhz. The bios detects this correctly also, but unraid is only running them at UDMA5 / 100Mhz. When I used these drives in another motherboard, UNRAID correctly configured them to UDMA6 / 133Mhz. I would like to get these drives working at UDMA 6. Any tips are appreciated. Some points: * That should not be Mhz, UDMA6/133 supports 133MB/s. * This is not an unRAID issue, but a controller issue. The kernel (not unRAID) will configure as best as it can, but only up to what the drive AND controller AND cable can support. * Those Maxtor's top speed (as I recall) would be somewhere around 62 to 75MB/s, well under 100MB/s, UDMA/100 (UDMA5). * As far as I know, there is no practical difference between UDMA5 and UDMA6 (and higher?), unless possibly if you were connecting Raptors. As I understand it, Seagate's never played that UDMA6 game, claiming that their IDE drives could 'talk' as fast as UDMA/133. I don't believe they ever claimed better than UDMA/100 for even the last of their PATA drives. And their competition never tried to claim better speed than the Seagate's because of this, because it really did not matter. If your car can only do 70 MPH, it really does not matter if you take it out on a highway with a 100 MPH or a 133 MPH speed limit. (I'm not an expert in this, so a more knowledgeable user may correct me here.)
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