Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "Carlos E.R." Newsgroups: comp.os.linux.hardware Subject: Re: Disappearing USB drives Date: Sun, 28 Jun 2020 13:45:06 +0200 Lines: 23 Message-ID: <2fcmsg-dr9.ln1@Telcontar.valinor> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: individual.net 3xQz842vcOqxHCd3luq74QOZt35DVutTBg+CwI9znt7XPAN+cD X-Orig-Path: Telcontar.valinor!not-for-mail Cancel-Lock: sha1:b7fwstuL+xJN+kmjmIwcv4Wjo3s= User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 In-Reply-To: Content-Language: es-ES Xref: csiph.com comp.os.linux.hardware:3424 On 28/06/2020 04.37, Jeff Jonas wrote: >> I'm trying to find the solution to USB drives 'disappearing' >> while being accessed. >> The drives affected are THREE different external USB drives, >> two Western Digital 8TB drives >> and a smaller Seagate 2TB drive > > If the problem is happening while writing, > check the log with 'dmesg' for USB or drive errors. > That's the best clue for what's triggering the cascade of problems. > > If the drive goes offline after being idle for 1/2 hour, > the drive is going into "power save mode", > something Linux knows nothing about. > My workaround was to put the drive on a Windows system > and using the mfgr's utility to set power-save to "never" > so the drive stays spinning. man hdparm -- Cheers, Carlos.