Connecting USB external HDD causes temperature to soar

Having had my broken Mac Mini fixed, I'm now resuming usage. One "interesting" fact I've noticed is that whenever an external USB HDD is switched on, the Mac's temperature soars. It was sitting, according to smcFanControl, at c. 34C whilst doing general browsing. Turning on the HDD and (over half an hour) the temperature rose to 64C. Ejecting the HDD (without even powering it off) had an instantaneous effect and the temperature plummeted back down to what it had been (first 10C in a minute, second 10C in five further minutes, etc).
I'm guessing that the second CPU core kicked in, or similar, causing the disproportionate thermal increase? Or is this a fault of some kind? It's completely repeatable.

It seems possible that the Mini kicked into high gear to do Spotlight indexing on the drive. You could go to System Preferences > Spotlight and designate that drive as one that you don't want indexed and see if that makes a difference.
If it doesn't, then my next best guess would be that the external drive is drawing power from the usb or firewire bus, and this is heating up the Mini's internal power supply -- though I admit that is a long shot.

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And in the terminal, I get this output (apparently from udiskie):
[root@archippocrates archie]# Failed to show notification: The connection is closed
not adding /org/freedesktop/UDisks/devices/mmcblk0: unhandled device
mounted /org/freedesktop/UDisks/devices/mmcblk0p1 on /media/3532-3338
Failed to show notification: The connection is closed
Although the volume does get mounted automatically.
Thanks for any thoughts.
-- mod edit: read the Forum Etiquette and only post thumbnails http://wiki.archlinux.org/index.php/For … s_and_Code [jwr] --
Last edited by Gamonics (2015-02-27 00:25:01)

I personally can't answer the question of "simplest and most elegant" way of mounting devices. It all depends on what you want. If you expect more exotic functionality, say correct unmounting of devices if they were disconnected during a sleep cycle, there's probably no way around udisks2. For that you get a complex piece of software prone to... unexpected behaviour. Mind you some of it is related to front-ends like GVFS.
As to your KDE issues, last I checked mount handling was disabled by default there, but you can control it manually (see man kcmshell4). Though I haven't followed up on KDE 5 developments. If going with udisks2, I'd recommend using devmon from the udevil package as a front-end (more details on the wiki udisks page).
PS: multiple dbus instances are expected, check the user names and specified arguments in the ps output.
edit: grammar. :X
Last edited by Alad (2015-02-27 17:03:31)

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I recently have been trying to connect an 1 TB external hdd to my time capsule. When connecting directly to USB - the drive maps fine (NTFS)
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1)Do I need to reformat in FAT32?
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a)This is formatted as: \\IPaddress\drivename (for example, \\10.0.1.1\mydrive) Mine is 192.168.1.1
Fetz TB (though the name in utility shows WDC WD10 EADS-00l blah blah)
You will need to rename the drivename to not include a space.
3) in apple utility click on disks I can see the hdd listed Enable file sharing is selected, do I need to enable over WAN, share with bonjour? Workgroup and WINS server are empty...should this be the case?
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Hi
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Message was edited by: Black-Winny

Hi Jacques
I have two external HDDs (30 and 60 GB) and both of them work with different notebook models. I connect it always when Windows is loaded completely and disconnect it before the unit shuts down. On this way the operating system will detect new hardware and after just a few seconds it can be recognized properly.
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many thanks kappy,
the mba is 10.6.5.
makes sense..
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I am Caron from Mauritius. I run Mint 17 Quiana 64 bit and an Archlinux Vm. My aim is to convert my archlinux vdi into a bootable external hdd ( I use a laptop so I'll be using a laptop external hdd in a usb casing.)
I read that I had first to convert the .vdi into a .raw and then use dd command. Unfortunately I failed because the commands are not working- unable to find the .vdi on my system. :?
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Caron
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Hi everybody and sorry for the delay...
First please note that Mauritius is a former ENGLISH colony till 1968 and is now known as the REPUBLIC of MAURITIUS. I invite you all to vist it as soon as you can.
To be more serious, I abandonned the Arch vdi cloning and tried to setup archlinux on an external usb hard drive ( laptop 500 gb hdd in a SATA enclosure ) .
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Connecting USB external HDD causes temperature to soar

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