HDD Features

  • Capacity 80000MB
  • Speed 5400RPM
  • Cache 8MB
  • Average Seek 12ms
  • Averate Latency 5.5ms

Enclosure Features:

  • Size 2.5"
  • AC Adapter from the host PC extra USB port
  • Material Aluminum
  • Internal Interface IDE
  • External Interface USB2.0 mini
  • Application: 2.5" hard drives
  • Support HDD up to 80G
  • Aluminum HDD external case for 2.5" HDD with height less than 9.5mm

Какво мисли Линукс: 

 usb 1-2: new high speed USB device using ehci_hcd and address 3 SCSI subsystem initialized Initializing USB Mass Storage driver... scsi0 : SCSI emulation for USB Mass Storage devices usbcore: registered new driver usb-storage USB Mass Storage support registered. usb-storage: device found at 3 usb-storage: waiting for device to settle before scanning Vendor: WDC WD80 Model: 0VE-75HDT0 Rev: 0811 Type: Direct-Access ANSI SCSI revision: 00 usb-storage: device scan complete SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB) sda: assuming drive cache: write through SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB) sda: assuming drive cache: write through sda: unknown partition table Attached scsi disk sda at scsi0, channel 0, id 0, lun 0

/dev/sda - usb drive; /dev/hda internal drive: 

 sudo hdparm -tT /dev/sda /dev/sda: Timing cached reads: 916 MB in 2.00 seconds = 458.07 MB/sec Timing buffered disk reads: 44 MB in 3.06 seconds = 14.39 MB/sec sudo hdparm -tT /dev/hda /dev/hda: Timing cached reads: 908 MB in 2.01 seconds = 452.71 MB/sec Timing buffered disk reads: 84 MB in 3.07 seconds = 27.37 MB/sec

Първи дял: 

 df: Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 78145768 32840 78112928 1% /mnt/usb/ df -ht: Filesystem Type Size Used Avail Use% Mounted on /dev/sda1 reiserfs 75G 33M 75G 1% /mnt/usb

Първи тестове: 

 time sudo cp -R MyPics/ /mnt/usb/MyPics real 0m49.953s user 0m0.039s sys 0m6.808s du -sh MyPics/ 606M MyPics/ time sudo cp RevolutionOS.avi /mnt/usb/. real 0m46.904s user 0m0.025s sys 0m8.723s du -sh RevolutionOS.avi 702M RevolutionOS.avi time cp /mnt/usb/RevolutionOS.avi Revolutionos.avi real 0m58.486s user 0m0.020s sys 0m6.545s time sudo cp /mnt/usb/RevolutionOS.avi /mnt/usb/RevolutionOS.avi_2 real 1m38.196s user 0m0.021s sys 0m5.861s

реразделяне: 

 df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 19534372 32840 19501532 1% /mnt/usb /dev/sda2 57691804 32828 54728320 1% /mnt/usb2 df -hT Filesystem Type Size Used Avail Use% Mounted on /dev/sda1 reiserfs 19G 33M 19G 1% /mnt/usb /dev/sda2 ext3 56G 33M 53G 1% /mnt/usb2

Втори тестове: 

 time sudo cp -R MyPics/ /mnt/usb/MyPics real 0m41.487s user 0m0.036s sys 0m7.128s time sudo cp -R MyPics/ /mnt/usb/MyPics real 1m0.163s user 0m0.026s sys 0m7.126s time sudo cp RevolutionOS.avi /mnt/usb real 0m50.243s user 0m0.024s sys 0m9.110s time sudo cp RevolutionOS.avi /mnt/usb2/ real 0m59.150s user 0m0.075s sys 0m9.977s

Върховният тест: 

 df -hT Filesystem Type Size Used Avail Use% Mounted on /dev/hda5 vfat 47G 33G 15G 70% /mnt/D /dev/sda2 reiserfs 56G 33M 56G 1% /mnt/usb2 time sudo cp -R /mnt/D /mnt/usb2/ real 59m19.993s user 0m1.970s sys 8m36.178s

Снимки