[opensuse] Re: usb *internal* hard drive
Jim Henderson a écrit :
I wonder if jdd has a memory card reader built into his machine; if he does, that's likely what this is.
yes, but it's not sda :-) mecum:/home/jdd # hdparm -t /dev/sda /dev/sda: Timing buffered disk reads: 136 MB in 3.02 seconds = 45.10 MB/sec mecum:/home/jdd # hdparm -t /dev/sdb /dev/sdb: Timing buffered disk reads: 84 MB in 3.01 seconds = 27.87 MB/sec sdb is a true usb drive. I didn't do any optimization since installing 11.1 the computer if one year old, not specially slow (dualcore), and I never noticed this before see file dump below. What I think, finally, is that kernel do parallel work and send messages immediately, the sda/usb buzz is probably simply a \n lack on mixed usb/scsi chains :-)) jdd whole dmesg: sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors: (160GB/149GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors: (160GB/149GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sda:<6>usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb ehci_hcd 0000:00:1d.7: PCI INT A -> GSI 23 (level, low) -> IRQ 23 ehci_hcd 0000:00:1d.7: setting latency timer to 64 ehci_hcd 0000:00:1d.7: EHCI Host Controller ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1 ehci_hcd 0000:00:1d.7: debug port 1 ehci_hcd 0000:00:1d.7: cache line size of 32 is not supported ehci_hcd 0000:00:1d.7: irq 23, io mem 0xd2304000 USB Universal Host Controller Interface driver v3.0 sda1 sda2 sda3 <<6>ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 8 ports detected sda5 sda6 sda7 > sda4 sd 0:0:0:0: [sda] Attached SCSI disk lsusb don't show any usd internal drive Bus 005 Device 006: ID 1058:0702 Western Digital Technologies, Inc. Passport External HDD Bus 005 Device 005: ID 046d:c016 Logitech, Inc. M-UV69a/HP M-UV96 Optical Wheel Mouse Bus 005 Device 004: ID 5986:0100 Acer, Inc Orbicam Bus 005 Device 003: ID 050d:0244 Belkin Components Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub -- http://www.dodin.net http://valerie.dodin.org http://www.youtube.com/watch?v=t-eic8MSSfM http://www.facebook.com/profile.php?id=1412160445 -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
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jdd