Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "Carlos E.R." Newsgroups: alt.os.linux,alt.comp.os.windows-11 Subject: Re: Hard disk error (Error probing device: Error sending ATA command IDENTIFY DEVICE) Date: Fri, 4 Apr 2025 02:39:32 +0200 Lines: 75 Message-ID: <4bm3clx6pp.ln2@Telcontar.valinor> References: <7263clxr47.ln2@Telcontar.valinor> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: individual.net mIi0bPpNkKQhsy/ZzSHXjAG3TpOI63iQYRAhgxuNslyN8m1bbg X-Orig-Path: Telcontar.valinor!not-for-mail Cancel-Lock: sha1:M2VRER1ogMi9u7WUOkSimhXoul8= sha256:/Va3iwY1AaA93WGDBP3niFm0+yMJd+hl8KV1CRx4aec= User-Agent: Mozilla Thunderbird Content-Language: es-ES, en-CA In-Reply-To: Xref: csiph.com alt.os.linux:81256 alt.comp.os.windows-11:18253 On 2025-04-03 23:47, Paul wrote: > On Thu, 4/3/2025 4:01 PM, Carlos E.R. wrote: > > The first thing you check with "materials" like this, is what > driver support and firmware support does it have. You can not know before buying :-( > There is a button > to click, which claims to expose user manuals for download. What I noticed, is that both the paper "manual" and the web talk of raid modes and a switch to control them, while this box is raidless. Raid is on another box, more expensive. The metalwork and hardware give a good impression, though. The fan is actually silent. > > https://support.yottamaster.com/download > > A bad sign, is when you can't even hire someone to make a web site. > The web site behaves like it's on someones night table and > running over a $39.95 ADSL package or something. > > Fortunately, you have a PNP of idVendor=152d, idProduct=0578 > and it is a JMicron 578. > > https://forums.linuxmint.com/viewtopic.php?t=230562 > > Product Teaser PDF. UhOh! This sentence hints how an attempt to make > a cheap enclosure could go. > > https://web.archive.org/web/20171215115739if_/http://www.jmicron.com:80/PDF/brief/jms578.pdf > > "Moreover, the JMS578 can combine with JMicron's SATA port multipliers to construct a data storage > device with multiple bays of HDDs to meet the requirement for large capacity data storage applications." Ha! So, probably several vendors build the same thing. > The datasheet shows an SPI port, which might be for a 2KB device to change the VendorID. > > The device has a "ROM" -- they don't even make it clear whether > that is EEPROM or what. In the year 2025, it's risky to make first-layer > mask programmed ROM chips. If you foul up the firmware in such a device, > you need a mechanism to support patching. Good devices use EEPROM, you > flash them up and blow the bugs out of it. > > I'm not at all sure, whether frame-based SATA switching is supported over > USB. It probably is, but your results are not encouraging so far. > > "Great science experiment you've got there, sir!" :-) > > If the enclosure only had one hard drive bay and no 1port-to-5port > expansion chip bolted to it, this would not have played out the same way. > > USB3 --- JMB578 ---- Single drive # likely to work > > USB3 --- JMB578 ---- SATA Mux ----- Drive1 # Expansion chip has a fanout of 5. > (Frame ----- Drive2 # This is the defacto way the industry makes those. > Based ----- Drive3 > Switching) ----- Drive4 > ----- Drive5 Sigh. So you think this is a firmware issue, and nothing can be done on the Linux side? -- Cheers, Carlos.