Hello! I installed a new 500Gb SATA drive into my 6.1 system and am greatly disappointed with its performance. Although straight reading is Ok at around 32Mb/s, the writing is never more than 7Mb/s (as reported by `systat 1 -vm' while running `cat < /dev/zero > /dev/ad8'). I reported this a few months ago (running 6.0 then), and one of the suggestions was, the drive is bad. Well, I'm seeing the same with its replacement... Also, KNOPPIX-4.0.2 can write to the drive at 22Mb/s (using dd). Here are the relevant dmesg entries: atapci1: <SiI 3114 SATA150 controller> port 0xac00-0xac07,0xa880-0xa883,0xa800-0xa807,0xa480-0xa483,0xa400-0xa40f mem 0xbe5dfc00-0xbe5dffff irq 25 at device 5.0 on pci3 atapci1: Reserved 0x10 bytes for rid 0x20 type 4 at 0xa400 atapci1: [MPSAFE] atapci1: Reserved 0x400 bytes for rid 0x24 type 3 at 0xbe5dfc00 ata2: <ATA channel 0> on atapci1 ata3: <ATA channel 1> on atapci1 ata4: <ATA channel 2> on atapci1 ata4: SATA connect ready time=0ms ata4: sata_connect devices=0x1<ATA_MASTER> ata4: [MPSAFE] ata5: <ATA channel 3> on atapci1 ad8: 476940MB <HDS725050KLA360 K2AOA11A> at ata4-master SATA150 ad8: 976773168 sectors [969021C/16H/63S] 16 sectors/interrupt 1 depth queue ad8: Silicon Image check3 failed ad8: Adaptec check1 failed ad8: LSI (v3) check1 failed ad8: LSI (v2) check1 failed ad8: FreeBSD check1 failed GEOM: new disk ad8 Attached is the output of `atacontrol'. I tried using `ataidle' to set the drive into the most and the least economical power and acoustic management modes, but its write-performance remains the same. Something is very wrong :-( The controller is, of course, by Silicon Image (Soren's "favorite"), but "Silicon Image check3 failed". Is that the problem? -mi
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