● 性能比較
MK2006GAL(20GB)とhdparm -t -Tで比較すると、バッファ読み込みで約10倍UP!だ。
name | cached reads | buffered disk reads |
MK2006GAL | 119.82 MB/sec | 4.63 MB/sec |
GM18M32E50IDEV4 | 180.08 MB/sec | 55.52 MB/sec |
$ fdisk /dev/hda Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabelBuilding a new DOS disklabel with disk identifier 0xXXXXXXXX.
usb 4-3: new high speed USB device using ehci_hcd and address 7 usb 4-3: configuration #1 chosen from 1 choice scsi6 : SCSI emulation for USB Mass Storage devices usb-storage: device found at 7 usb-storage: waiting for device to settle before scanning usb 4-3: New USB device found, idVendor=152d, idProduct=2338 usb 4-3: New USB device strings: Mfr=1, Product=2, SerialNumber=5 usb 4-3: Product: USB to ATA/ATAPI Bridge usb 4-3: Manufacturer: JMicron usb 4-3: SerialNumber: 503922222222 usb-storage: device scan complete scsi 6:0:0:0: Direct-Access GMonster 0316-039 1292 PQ: 0 ANSI: 2 CCS sd 6:0:0:0: [sdc] 58720256 512-byte hardware sectors (30065 MB) sd 6:0:0:0: [sdc] Write Protect is off sd 6:0:0:0: [sdc] Mode Sense: 00 38 00 00 sd 6:0:0:0: [sdc] Assuming drive cache: write through sd 6:0:0:0: [sdc] 58720256 512-byte hardware sectors (30065 MB) sd 6:0:0:0: [sdc] Write Protect is off sd 6:0:0:0: [sdc] Mode Sense: 00 38 00 00 sd 6:0:0:0: [sdc] Assuming drive cache: write through sdc:<6>sd 6:0:0:0: [sdc] Sense Key : No Sense [current] sd 6:0:0:0: [sdc] Add. Sense: No additional sense information usb 4-3: reset high speed USB device using ehci_hcd and address 7 usb 4-3: reset high speed USB device using ehci_hcd and address 7 sdc:<6>sd 6:0:0:0: [sdc] Sense Key : No Sense [current] sd 6:0:0:0: [sdc] Add. Sense: No additional sense information usb 4-3: reset high speed USB device using ehci_hcd and address 7 usb 4-3: reset high speed USB device using ehci_hcd and address 7 ...リセット繰り返し...
usb 4-3: new high speed USB device using ehci_hcd and address 5 usb 4-3: configuration #1 chosen from 1 choice usb 4-3: New USB device found, idVendor=152d, idProduct=2338 usb 4-3: New USB device strings: Mfr=1, Product=2, SerialNumber=5 usb 4-3: Product: USB to ATA/ATAPI Bridge usb 4-3: Manufacturer: JMicron usb 4-3: SerialNumber: 500822222222 Initializing USB Mass Storage driver... scsi4 : SCSI emulation for USB Mass Storage devices usbcore: registered new interface driver usb-storage USB Mass Storage support registered. usb-storage: device found at 5 usb-storage: waiting for device to settle before scanning usb-storage: device scan complete scsi 4:0:0:0: Direct-Access GMonster 0323-008 1295 PQ: 0 ANSI: 2 CCS sd 4:0:0:0: [sdc] 58720256 512-byte hardware sectors (30065 MB) sd 4:0:0:0: [sdc] Write Protect is off sd 4:0:0:0: [sdc] Mode Sense: 00 38 00 00 sd 4:0:0:0: [sdc] Assuming drive cache: write through sd 4:0:0:0: [sdc] 58720256 512-byte hardware sectors (30065 MB) sd 4:0:0:0: [sdc] Write Protect is off sd 4:0:0:0: [sdc] Mode Sense: 00 38 00 00 sd 4:0:0:0: [sdc] Assuming drive cache: write through sdc: sd 4:0:0:0: [sdc] Attached SCSI disk