[conspire] question - Seagate Free Agent Go 1T
freepalestin at dslextreme.com
Sat Mar 6 22:34:51 PST 2010
On Sat, Mar 6, 2010 at 4:46 PM, Tony Godshall <tony at of.net> wrote:
> I have worked with several Seagate Freeagent drives in capacities
> ranging from 160GB to 2TB and they work fine in Linux except for this:
> Some of the drives power themselves off without notifying the OS if
> they are left running for long periods of time with no activity.
> This is not an issue if you are using the drive to transport files
> (plug in, mount, copy files, unmount, go) but if you are using the
> drive as a semi-permanent part of your setup it can be an issue.
> When I put a 2TB drive on backuppc duty it worked great until all the
> PCs were backed up and had some idle time and then it failed.
> Unplugging, plugging back in, and remounting it solved that instance.
> And I solved it in a more permanent way with a cron job that wrote
> something random to the partition every minute.
> Later I found the readily available sdparm was able to turn off the
> drive-inititated spin-down feature entirely. sdparm is like hdparm
> but with a few features specifically for SCSI drives (which USB
> drives emulate). Turning off the feature doesnt hurt anything- the OS
> can still initiate spin-down, which is the right way to do it, because
> when the OS initiated it the drives generally spin back up when
> The exact details escape me, if you ixquick or google "sdparm Linux"
> you'll find lots of discussion.
> Best Regards.
Thank you very much! Very valuable information! Thank you for taking
the time to write and answer my question and give the caveat.
equal justice under law,
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