From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.lichtvoll.de (luna.lichtvoll.de [194.150.191.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7633B132C3D; Thu, 15 Feb 2024 15:36:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.150.191.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708011365; cv=none; b=UevLvZHOza09PqyNKhlhaXwP4+HgCuwO+x3szDcEnywV6GlPO2Q21gEX4mUfh5ZGv0lb2Kzt+Of8J16KyJZh7v+Mkl2uAyxZOR2n0QXFgId+rh+M83ZfXAeB3l/fbo3WDPqBjubhCZMf/odG2W1hNjcASh1K8+a0MYymiDzews0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708011365; c=relaxed/simple; bh=1p3Q3KdbxlHlmdeFhlNImxogJYDY5dAaY8ePBASP6co=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Z+FJ6hrcPtW7wP4sghGIPuRIJ6AbfeRQitv1zPCeU30Sc68vMgYqlrPi15K3qcd871eVY6rgC1vRxoXfRO+Z9bKxTX3PPdTB3xcp7+O33W1S4tTVNEHABT551/XVQ2AWgcL0dD4LjN5G2BjKMX3YOz9P4nKr9pqgoPDAtZKjsK4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lichtvoll.de; spf=pass smtp.mailfrom=lichtvoll.de; arc=none smtp.client-ip=194.150.191.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lichtvoll.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lichtvoll.de Received: from 127.0.0.1 (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by mail.lichtvoll.de (Postfix) with ESMTPSA id A762989B9A2; Thu, 15 Feb 2024 16:36:00 +0100 (CET) Authentication-Results: mail.lichtvoll.de; auth=pass smtp.auth=martin smtp.mailfrom=martin@lichtvoll.de From: Martin Steigerwald To: Alan Stern Cc: Kent Overstreet , stable@vger.kernel.org, regressions@lists.linux.dev, linux-usb@vger.kernel.org, Holger =?ISO-8859-1?Q?Hoffst=E4tte?= , linux-bcachefs@vger.kernel.org, linux-block@vger.kernel.org Subject: Re: I/O errors while writing to external Transcend XS-2000 4TB SSD Date: Thu, 15 Feb 2024 16:36:00 +0100 Message-ID: <2140271.OBFZWjSADL@lichtvoll.de> In-Reply-To: References: <1854085.atdPhlSkOF@lichtvoll.de> <1979818.usQuhbGJ8B@lichtvoll.de> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Alan Stern - 15.02.24, 16:19:54 CET: > > First I will have a look on how to see what USB power management > > options may be in place and how to tell Linux to keep the USB port > > the SSD is connected to at all times. > > > > Let's see how this story unfolds. At least I am in no hurry about it. > > This may not be an issue of power management but rather one of > insufficient power. A laptop may not provide enough power through its > USB ports for the Transcend SSD to work properly under load. > > You can test this by connecting a powered UBS-3 hub between the laptop > and the drive. Interesting idea. Maybe the Transcend XS-2000 4TB needs more power than the Sandisk Extreme Pro 2TB. Not sure whether I have one at hand with USB-C here, cause my regular USB hub only has USB-A connectors. Need to look for one with enough USB-A and USB-C connectors as I use an USB hub as replacement for a docking station. But I do have at least optionally powered hub with USB-C one at another place. It does not have many ports. But for the task ahead one USB-C port is sufficient. I will try this as well. Thanks. Best, -- Martin