External HDD is getting Unmounted for no Obvious Reason
So, I have a HDD in a docking station that is connected via USB to my computer. I am running a python script stored on that drive that might be doing a lot of I/O (I didn't create the script, I am just using it). At the very least, the error messages tell me that it checks the current working directory a lot for some reason. The bottom line is that, when I run this script, the HDD unexpectedly gets unmounted at some point while the script is running. During my first attempt, it ran almost 48 hours before this happened. In subsequent attempts, it lasted 10 minutes and 40 minutes.
I checked both ends of the USB connection. While they have some wiggle room, it isn't enough to cause a physical disconnect (I tried). It also doesn't seem to be something with the HDD as simply turning off, then on, the docking station and/or unplugging and replugging in the USB cable seems to get the computer to remount the drive with no issues.
One thing I could try is running it using my internal drive. However, I am a bit nervous about what might happen if that ends up getting unmounted while the script (and all my other programs) is running.
Any ideas?
Edit:
Per waltinator's suggestion below, I ran the following after determining which device it was.
sudo zgrep '/dev/sdc' /var/log/*
This is what I got:
/var/log/udev:DEVNAME=/dev/sdc
/var/log/udev:DEVNAME=/dev/sdc1
/var/log/udev:DEVNAME=/dev/sdc2
/var/log/udev:DEVNAME=/dev/sdc
/var/log/udev:DEVNAME=/dev/sdc1
/var/log/udev:DEVNAME=/dev/sdc2
I am not sure if there is anything useful in there. It is important to note that the HDD appeared to be properly mounted at the time I did this. I am guessing there would be something else if I ran then after it got unmounted?
14.04 external-hdd
asked Feb 2 at 0:31
Andrew ShumAndrew Shum
13713
|
show 1 more comment
So, I have a HDD in a docking station that is connected via USB to my computer. I am running a python script stored on that drive that might be doing a lot of I/O (I didn't create the script, I am just using it). At the very least, the error messages tell me that it checks the current working directory a lot for some reason. The bottom line is that, when I run this script, the HDD unexpectedly gets unmounted at some point while the script is running. During my first attempt, it ran almost 48 hours before this happened. In subsequent attempts, it lasted 10 minutes and 40 minutes.
I checked both ends of the USB connection. While they have some wiggle room, it isn't enough to cause a physical disconnect (I tried). It also doesn't seem to be something with the HDD as simply turning off, then on, the docking station and/or unplugging and replugging in the USB cable seems to get the computer to remount the drive with no issues.
One thing I could try is running it using my internal drive. However, I am a bit nervous about what might happen if that ends up getting unmounted while the script (and all my other programs) is running.
Any ideas?
Edit:
Per waltinator's suggestion below, I ran the following after determining which device it was.
sudo zgrep '/dev/sdc' /var/log/*
This is what I got:
/var/log/udev:DEVNAME=/dev/sdc
/var/log/udev:DEVNAME=/dev/sdc1
/var/log/udev:DEVNAME=/dev/sdc2
/var/log/udev:DEVNAME=/dev/sdc
/var/log/udev:DEVNAME=/dev/sdc1
/var/log/udev:DEVNAME=/dev/sdc2
I am not sure if there is anything useful in there. It is important to note that the HDD appeared to be properly mounted at the time I did this. I am guessing there would be something else if I ran then after it got unmounted?
14.04 external-hdd
asked Feb 2 at 0:31
Andrew ShumAndrew Shum
13713
Can you post the contents of the script?
– PSA
Feb 2 at 0:56
What size HDD? Does the docking station have its own AC power supply? Report back to @heynnema
– heynnema
Feb 2 at 1:51
You could probably gain some information withzgrep '/dev/sd' /var/log/* | less
– waltinator
Feb 2 at 4:21
Sorry for the delay. I was traveling this past week. @PSA Unfortunately, I cannot post the script. The collaborator I got it from still wants to do some clean-up before releasing it publicly.
– Andrew Shum
Feb 8 at 23:48
@heynnema The HDD is 3TB and the docking station has its own AC power.
– Andrew Shum
Feb 8 at 23:49
|
show 1 more comment
So, I have a HDD in a docking station that is connected via USB to my computer. I am running a python script stored on that drive that might be doing a lot of I/O (I didn't create the script, I am just using it). At the very least, the error messages tell me that it checks the current working directory a lot for some reason. The bottom line is that, when I run this script, the HDD unexpectedly gets unmounted at some point while the script is running. During my first attempt, it ran almost 48 hours before this happened. In subsequent attempts, it lasted 10 minutes and 40 minutes.
I checked both ends of the USB connection. While they have some wiggle room, it isn't enough to cause a physical disconnect (I tried). It also doesn't seem to be something with the HDD as simply turning off, then on, the docking station and/or unplugging and replugging in the USB cable seems to get the computer to remount the drive with no issues.
One thing I could try is running it using my internal drive. However, I am a bit nervous about what might happen if that ends up getting unmounted while the script (and all my other programs) is running.
Any ideas?
Edit:
Per waltinator's suggestion below, I ran the following after determining which device it was.
sudo zgrep '/dev/sdc' /var/log/*
This is what I got:
/var/log/udev:DEVNAME=/dev/sdc
/var/log/udev:DEVNAME=/dev/sdc1
/var/log/udev:DEVNAME=/dev/sdc2
/var/log/udev:DEVNAME=/dev/sdc
/var/log/udev:DEVNAME=/dev/sdc1
/var/log/udev:DEVNAME=/dev/sdc2
I am not sure if there is anything useful in there. It is important to note that the HDD appeared to be properly mounted at the time I did this. I am guessing there would be something else if I ran then after it got unmounted?
14.04 external-hdd
asked Feb 2 at 0:31
Andrew ShumAndrew Shum
13713
So, I have a HDD in a docking station that is connected via USB to my computer. I am running a python script stored on that drive that might be doing a lot of I/O (I didn't create the script, I am just using it). At the very least, the error messages tell me that it checks the current working directory a lot for some reason. The bottom line is that, when I run this script, the HDD unexpectedly gets unmounted at some point while the script is running. During my first attempt, it ran almost 48 hours before this happened. In subsequent attempts, it lasted 10 minutes and 40 minutes.
I checked both ends of the USB connection. While they have some wiggle room, it isn't enough to cause a physical disconnect (I tried). It also doesn't seem to be something with the HDD as simply turning off, then on, the docking station and/or unplugging and replugging in the USB cable seems to get the computer to remount the drive with no issues.
One thing I could try is running it using my internal drive. However, I am a bit nervous about what might happen if that ends up getting unmounted while the script (and all my other programs) is running.
Any ideas?
Edit:
Per waltinator's suggestion below, I ran the following after determining which device it was.
sudo zgrep '/dev/sdc' /var/log/*
This is what I got:
/var/log/udev:DEVNAME=/dev/sdc
/var/log/udev:DEVNAME=/dev/sdc1
/var/log/udev:DEVNAME=/dev/sdc2
/var/log/udev:DEVNAME=/dev/sdc
/var/log/udev:DEVNAME=/dev/sdc1
/var/log/udev:DEVNAME=/dev/sdc2
I am not sure if there is anything useful in there. It is important to note that the HDD appeared to be properly mounted at the time I did this. I am guessing there would be something else if I ran then after it got unmounted?
14.04 external-hdd
14.04 external-hdd
asked Feb 2 at 0:31
Andrew ShumAndrew Shum
13713
asked Feb 2 at 0:31
Andrew ShumAndrew Shum
13713
edited Feb 9 at 0:01
Andrew Shum
asked Feb 2 at 0:31
Andrew ShumAndrew Shum
13713
asked Feb 2 at 0:31
Andrew ShumAndrew Shum
13713
asked Feb 2 at 0:31
Andrew ShumAndrew Shum
13713
13713
Can you post the contents of the script?
– PSA
Feb 2 at 0:56
What size HDD? Does the docking station have its own AC power supply? Report back to @heynnema
– heynnema
Feb 2 at 1:51
You could probably gain some information withzgrep '/dev/sd' /var/log/* | less
– waltinator
Feb 2 at 4:21
Sorry for the delay. I was traveling this past week. @PSA Unfortunately, I cannot post the script. The collaborator I got it from still wants to do some clean-up before releasing it publicly.
– Andrew Shum
Feb 8 at 23:48
@heynnema The HDD is 3TB and the docking station has its own AC power.
– Andrew Shum
Feb 8 at 23:49
|
show 1 more comment
Can you post the contents of the script?
– PSA
Feb 2 at 0:56
What size HDD? Does the docking station have its own AC power supply? Report back to @heynnema
– heynnema
Feb 2 at 1:51
You could probably gain some information withzgrep '/dev/sd' /var/log/* | less
– waltinator
Feb 2 at 4:21
Sorry for the delay. I was traveling this past week. @PSA Unfortunately, I cannot post the script. The collaborator I got it from still wants to do some clean-up before releasing it publicly.
– Andrew Shum
Feb 8 at 23:48
@heynnema The HDD is 3TB and the docking station has its own AC power.
– Andrew Shum
Feb 8 at 23:49
Can you post the contents of the script?
– PSA
Feb 2 at 0:56
Can you post the contents of the script?
– PSA
Feb 2 at 0:56
What size HDD? Does the docking station have its own AC power supply? Report back to @heynnema
– heynnema
Feb 2 at 1:51
What size HDD? Does the docking station have its own AC power supply? Report back to @heynnema
– heynnema
Feb 2 at 1:51
You could probably gain some information with
zgrep '/dev/sd' /var/log/* | less– waltinator
Feb 2 at 4:21
You could probably gain some information with
zgrep '/dev/sd' /var/log/* | less– waltinator
Feb 2 at 4:21
Sorry for the delay. I was traveling this past week. @PSA Unfortunately, I cannot post the script. The collaborator I got it from still wants to do some clean-up before releasing it publicly.
– Andrew Shum
Feb 8 at 23:48
Sorry for the delay. I was traveling this past week. @PSA Unfortunately, I cannot post the script. The collaborator I got it from still wants to do some clean-up before releasing it publicly.
– Andrew Shum
Feb 8 at 23:48
@heynnema The HDD is 3TB and the docking station has its own AC power.
– Andrew Shum
Feb 8 at 23:49
@heynnema The HDD is 3TB and the docking station has its own AC power.
– Andrew Shum
Feb 8 at 23:49
|
show 1 more comment
0
active
oldest
votes
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "89"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1114876%2fexternal-hdd-is-getting-unmounted-for-no-obvious-reason%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Ask Ubuntu!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1114876%2fexternal-hdd-is-getting-unmounted-for-no-obvious-reason%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Can you post the contents of the script?
– PSA
Feb 2 at 0:56
What size HDD? Does the docking station have its own AC power supply? Report back to @heynnema
– heynnema
Feb 2 at 1:51
You could probably gain some information with
zgrep '/dev/sd' /var/log/* | less– waltinator
Feb 2 at 4:21
Sorry for the delay. I was traveling this past week. @PSA Unfortunately, I cannot post the script. The collaborator I got it from still wants to do some clean-up before releasing it publicly.
– Andrew Shum
Feb 8 at 23:48
@heynnema The HDD is 3TB and the docking station has its own AC power.
– Andrew Shum
Feb 8 at 23:49