USB disk almost kills network

Hi all,
I've recently bought and installed an USB disk (which I formatted as HFS+). The system works fine, and the USB disk speed is compatible with one's expectations, but there is a problem: my network becomes completely sluggish when the disk is powered on.
I mean: if it's off, no problem. If I turn it on, everything ok but the network slows down close to a halt. If I eject the disk and don't power it off, same thing. As soon as I power it off, all fine again.
My network talks to the world via ADSL, which I access through a LAN. It's as if the presence of the disk caused some sort of address confusion for the ethernet port, but I can't see how this is. I've tried the usual stuff – changing USB port, permission repair, all that I could. Any hints?
Thanks a lot in advance,
M.

Hi BDAqua, it has A/C. Since you ask, it is plugged on the same line as my Digitus Network interface, which basically carries network signals on a power line, since we don't have dedicated cabling in the studio. It works smoothly (the Digitus) but I've discovered in the past that it is sensitive to which power line you use: straight into the wall, fine; if through an adaptor, sometimes it has problems. Anyway, I've tried moving the disk away from such line and onto another – nothing changes.

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Me too. Start a new thread?
Edit; Nope, this worked for me https://bbs.archlinux.org/viewtopic.php?id=142110
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USB disk access of every type is hosed - HELP!?

Newbie with the very latest "Don't Panic" running on a laptop. I'm coming off a year with various bloateddistros, looking for something fast and stable.
I've got my internal drive up, networking, x, gnome and openoffice all working great. Next step is to plug in my external 160gig drive with all my data on it. This is a very standard USB2-to-EIDE drive, I've had no problems with it in any distro. It's split between a 32gig FAT32 partition and a 119gig Ext3.
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Well before reading Veek's post I got further along. Almost there I think.
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Failed to mount "128G Volume".
(exo-mount:4613): Gtk-WARNING **: Locale not supported by C library.
Using the fallback 'C' locale.
You are not privileged to mount the volume "128G Volume".
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/dev/sdb1 1 19457 156288321 5 Extended
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...right before going into sleep mode.
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Dec 7 11:29:18 localhost kernel: [67351.155834] Stack:
Dec 7 11:29:18 localhost kernel: [67351.155834] f15a7eac f46b05e0 f6447e80 f1255a40 f6447e80 f46b05f0 f15a7e6c c10d4f48
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Dec 7 11:29:18 localhost kernel: [67351.155834] 00000000 f15a7e90 c113befa f1141600 f15a7eb4 f8046f1e f1141600 f804b3e4
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Dec 7 11:29:18 localhost kernel: [67351.155834] [<c10d4f48>] account_page_dirtied+0x68/0x90
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c113be2c>] __set_page_dirty+0x3c/0xb0
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c113befa>] mark_buffer_dirty+0x5a/0x90
Dec 7 11:29:18 localhost kernel: [67351.155834] [<f8046f1e>] ext2_sync_super+0x6e/0xd0 [ext2]
Dec 7 11:29:18 localhost kernel: [67351.155834] [<f8046fd1>] ext2_sync_fs+0x51/0x60 [ext2]
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c1157640>] ? dquot_get_dqblk+0x180/0x180
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c113a4ca>] __sync_filesystem+0x5a/0x80
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c113a539>] sync_filesystem+0x29/0x50
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c111656e>] generic_shutdown_super+0x2e/0xe0
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c1116649>] kill_block_super+0x29/0x70
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Dec 7 11:29:18 localhost kernel: [67351.155834] [<c112ed38>] mntput+0x18/0x30
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Dec 7 11:29:18 localhost kernel: [67351.155834] [<c1112db4>] sys_close+0x74/0xc0
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c134c11f>] sysenter_do_call+0x12/0x28
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c1340000>] ? setup_local_APIC+0x2c9/0x3b8
Dec 7 11:29:18 localhost kernel: [67351.155834] Code: eb ce 8d 76 00 8d bc 27 00 00 00 00 55 89 e5 83 ec 18 89 5d f4 89 c3 89 e0 25 00 e0 ff ff 89 75 f8 89 7d fc 83 40 14 01 8b 43 14
Dec 7 11:29:18 localhost [67351.155834] 8b 30 89 f7 c1 ff 1f 01 d6 89 45 f0 8b 45 08 11 cf 89 c2 c1
Dec 7 11:29:18 localhost kernel: [67351.155834] EIP: [<c11cf02f>] __percpu_counter_add+0x1f/0xe0 SS:ESP 0068:f15a7e40
Dec 7 11:29:18 localhost kernel: [67351.155834] CR2: 00000000342da000
Dec 7 11:29:18 localhost kernel: [67351.155834] ---[ end trace a7afafe94ef537f4 ]---
Dec 7 11:29:18 localhost kernel: [67351.182781] note: transmission-gt[2302] exited with preempt_count 2
By playing around I learned that if I kill transmission and any app that actively uses the USB disk prior to the sleep mode, and then start them after resume is finished and the disk is mounted (I use GNOME 3 in fallback mode, so it automounts the disk) everything works fine.
Now, I could ignore those messages but it gets worse. Mostly laptop will hang at a random point in time after printing that wall of text on tty1. It might take hours, or even days before this happens. Sometimes I'll find transmission in a freezed state and I may survive a couple of sleep and resume cycles but I almost never will go as far as 4 days and more in a row. The laptop will hang eventually. And the only way to avoid this is to kill off apps that use external USB drive prior to going into sleep mode.
Any ideas what's going on and how to fix this?
% uname -a
Linux host 2.6.39-ARCH #1 SMP PREEMPT Tue Jun 7 05:49:02 UTC 2011 i686 Intel(R) Core(TM) Duo CPU T2250 @ 1.73GHz GenuineIntel GNU/Linux

karol wrote:https://bbs.archlinux.org/viewtopic.php?id=131527
Thanks, however, my problem isn't speed, it's stability of the system.

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Can't see USB disk attached to other mac

I have an Airport Express, on the network is a Mac Mini which has an USB disk attached to it (to the Mac Mini).
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1)
My printer is HP PSC 1210 all-in-one ( http://h10025.www1.hp.com/ewfrf/wc/product?product=90764&lc=fi&cc=fi&dlc=fi&lang =fi&cc=fi&y=0&x=0 )
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2)
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I have a similar problem to your second issue. Tried connecting a Netdisk to the USB port of the Airport Extreme and it also said there was a problem with the disk. Have performed a low level format on the disk and Airport Extreme still complained the disk had a problem.
After unplugging the disk, my route decided to stop allowing wireless connections even after rebooting. Ended up having to hard reset the Airport Extreme and reconfigure it with my old settings to work again.
FWIW, the first Airport Extreme I purchased today only worked on 802.11a and steadfastly refused to work on b/g so had to get a replacement. I suspect Apple's quality control is not quite as good as it used to be.

USB Disk via USB Hub or Ethernet NAS Connection More Reliable?

This is a rather techical question that calls for an opinion.
I want to centralize backups for my daughter, wife and myself. I'm going to add the latest model Airport Extreme Base Station as both an internet access point (from my cable modem) and as a wireless router to hard drive storage. I know there are cheaper (and probably faster) wireless routers; however, I've used various models of airport base stations over the years with my cable modem and they have all worked flawlessly and never need rebooting.
My two choices: 1) Connect a 4-port, powered USB hub to the usb connection on the Airport Extreme and use a pair of 3GB hard drives--one for primary backup and the second for the backup of the backup. 2) Use a QNAP TS110 or TS112 NAS device and connect it to the Base Station via gigabit ethernet. Then, an external USB drive would be connected to the QNAP NAS device. I've encountered QNAP NAS products in my work life and have been incredibly impressed with them--reliable, very low power requirements, reasonably easy setup via Web browser.
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I meant to say 3TB drives, not 3GB.

I have a PC and a need help to configure my external hard disk on my network. Thanks

I have a PC and a need help to configure my external hard disk on my network. Thanks

If you mean you wish to plug a USB drive into the Airport Extreme router (or TC not express) that is easy..
The disk must be formatted FAT32.. as if.. stay away from FAT .. or HFS+ ie Mac OS extended Journaled.
Format the disk on a Mac is best.. and even use GUID partition scheme not MBR.
The PC has no issue writing and reading files because this is a network drive.. The PC does not write to the drive.. it writes files to the Airport OS which writes and reads the disk and passes the info using standard windows SMB.. To the windows computer it will be a Windows NT server.. FAT32 setup.
If your setup is different.. to my hugely guessed assumptions.. give details.. always helps to have.. make and model.
Make and model of disk.. make and model of router.. how the setup will be done.. what windows OS you run.. etc etc.
As it stands your question could have nothing to do with apple at all.. other than you posted in a forum so I guess there is something apple in there somewhere.

Cannot get Time Machine to "see" my AEBS USB disk?

I am trying to set up a Time Machine backup through my AEBS USB Disk.
The USB disk is formatted GUID with a single partition (1TB Fantom) and appears in the shared menu and mounts in the finder on all three of my computers on the AEBS.
I just cannot get it to show up in Time Machine as an available drive to back up to.
I partitioned using GUID as many posts suggest.
Drive appears in shared menu and mounts in finder
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In Airport Utility
Firmware version 7.4.1
File Sharing Tab: Enable File Sharing is checked
I have tried "with accounts", "with a disk password" and "with airport extreme password".
Remember this password in my keychain is checked
Airport Disks Guest Access: Read and Write
Share Disks over WAN (I tried checked and unchecked)
I am running 10.5.6 on all three Macs. A G5 tower and two MacBooks.
I have read a lot of troubleshooting posts on this issue, but I believe I have tried everything I should. I imagine it is something simple at this point.
Any thoughts and guidance greatly appreciated.
Henry

Same problem here, but I have a work around, I'm not sure what is really required here and what is fluff, but this is how I got to it.
Directly connect the drive to your computer, and do your first Time Machine backup.
Disconnect from the computer and connect to the AEBS. I have mine shared as With Airport Extreme password and guest read/write enabled
Go to Finder.
There you will see
your network name icon
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For me the network Icon will not connect to the drive, but... the All... icon will show the drive just fine. Navigate to the drive in Finder through the All... path.
Now start up Time Machine preferences, and you can select the AEBS drive. Note Without navigating to the drive through the finder the drive does not seem to mount to the system.
You should be working now.
As a side note, I have a Lacie drive that when plugged in works fine. The network named Icon will show the drive just fine. The other drive (A Seagate) is in an Ultra box and will not mount through the network icon. This is just plain weird.
Now all I need is to find a way to auto mount the drive 8), and fix the can't login to the network icon... Challenges make the world go 'round.

Cannot connect to USB disk connected to Airport

I have a USB disk connected to the USB port on my Airport Extreme. The disk has a volume label already set and had been previously directly connected to my IMac
I've gone into the Airport utility and updated the 'Disks' information to include "Enable file sharing" and "Secure Shared Disks" "With Accounts". I have the users listed under acounts and have set the passwords, same as login passwords.
But, I can't successfully login to the disk. I've tried the base station password, the network access pasword, the user password: none work.
What am I missing here?

Does the disk appear as a volume when you check using the Disk tab in AirPort Utillity? In the example below, a WD Drive is connected to the USB port of an AirPort Extreme.
If the drive does not appear here first, you will not be able to access it. Check to make sure that the drive is formatted in Mac OS Extended (Journaled). FAT32 will also work as well.
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USB disk almost kills network

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