Re: [gentoo-user] why is writing to an async-mounted USB disk so slow?
Thomas Mueller wrote: >> Mick has a good point. I have two or three of the cheaper USB external >> enclosures and only one of them was somewhat fast, it is USB 2.0 after >> all. The other two logged a lot of errors in messages file about >> resetting something. It was resetting so often that moving data to or >> from the drive was very slow. I pitched the two bad ones, saved the one >> that works but bought a known good one, it has a fan and a display with >> the temps and fan RPMs etc on it. It is a eSATA or USB enclosure. I >> use the eSATA port and it is as fast as my internal drives. If >> interested, I can find a link for one so you can see what it looks >> like. I can also find the one that doesn't work just in case you have >> it. The good one is black and the iffy ones are a silver color. Point >> is, not all external enclosures work well. USB ports in my experience >> really complicate matters. >> I like USB for my camera and my little card reader, that I use to get >> deer pics off my trail camera. Other than that, I try to avoid USB. >> Oh, printers tend to work too. >> Dale > I am curious about your USB and eSATA enclosure. > > I have two such Sabrent enclosures, USB 2.0 and eSATA. > > USB 2.0 works with IDE or SATA hard drive, while eSATA works only with SATA > hard drive. > > I also have a Micronet Fantom G-Force hard drive with USB 3.0 and eSATA > connections. > > Tom > > > This first one is like the one that doesn't work. Of the three, two didn't work correctly and the one that works without errors isn't that fast either. I wouldn't recommend this one unless something has changed which makes it much faster in the case of the one that works and is dependable in the case of the two who doesn't. https://www.ebay.com/itm/USB3-0-HDD-Enclosure-3-5-SATA-External-Hard-Drive-Caddy-Case-cooling-fan/293073024042 This next one is the one that works great. It's fast, every bit as fast as my internal drives. I have not tried the USB port so I'm referring to the eSATA port only. Let's hope they haven't changed this since it works great. The display is hard to see on the main image but another image shows it well. I might add, the price has went up quite a bit too. o_O https://www.ebay.com/itm/Rosewill-Armer-RX304-APU3-35B-External-3-5-SATA-III-6-Gb-s-Hard-Drive-Enclosu/383002494116 One other note, neither of those are the vendor I bought from. The original vendor had sold out and either unlisted the item or no longer had all the info. I'm sure there are others out there that work fine. I'm just sharing the ones I have that don't work right and one that does. Just like hard drives in general, I'm sure others will have different experiences. Dale :-) :-)
Re: [gentoo-user] why is writing to an async-mounted USB disk so slow?
> Mick has a good point. I have two or three of the cheaper USB external > enclosures and only one of them was somewhat fast, it is USB 2.0 after > all. The other two logged a lot of errors in messages file about > resetting something. It was resetting so often that moving data to or > from the drive was very slow. I pitched the two bad ones, saved the one > that works but bought a known good one, it has a fan and a display with > the temps and fan RPMs etc on it. It is a eSATA or USB enclosure. I > use the eSATA port and it is as fast as my internal drives. If > interested, I can find a link for one so you can see what it looks > like. I can also find the one that doesn't work just in case you have > it. The good one is black and the iffy ones are a silver color. Point > is, not all external enclosures work well. USB ports in my experience > really complicate matters. > I like USB for my camera and my little card reader, that I use to get > deer pics off my trail camera. Other than that, I try to avoid USB. > Oh, printers tend to work too. > Dale I am curious about your USB and eSATA enclosure. I have two such Sabrent enclosures, USB 2.0 and eSATA. USB 2.0 works with IDE or SATA hard drive, while eSATA works only with SATA hard drive. I also have a Micronet Fantom G-Force hard drive with USB 3.0 and eSATA connections. Tom
Re: [gentoo-user] why is writing to an async-mounted USB disk so slow?
n952162 wrote: > Okay, thank you, I'll try that (in (33 - 24) hours ;-) ) > > > On 11/02/19 16:40, Mick wrote: >> On Saturday, 2 November 2019 15:15:31 GMT n952162 wrote: >>> I'm getting 13k bps writing to a Toshiba 3T drive over a USB/Sata >>> connection. It' take 33 hours to transfer a 200meg file. >>> >>> I mounted it async but then see that ext4 ignores the async option on >>> mounts. >>> >>> What am I doing wrong? >> Probably nothing, other than using a faulty port/cable and/or faulty >> drive. >> Have a look at dmesg and syslog for I/O errors. >> >> Have you tried a different port and different USB cable? Unless it >> is an >> eSATA, in which case you will need an eSATA port/cable. >> > > > Mick has a good point. I have two or three of the cheaper USB external enclosures and only one of them was somewhat fast, it is USB 2.0 after all. The other two logged a lot of errors in messages file about resetting something. It was resetting so often that moving data to or from the drive was very slow. I pitched the two bad ones, saved the one that works but bought a known good one, it has a fan and a display with the temps and fan RPMs etc on it. It is a eSATA or USB enclosure. I use the eSATA port and it is as fast as my internal drives. If interested, I can find a link for one so you can see what it looks like. I can also find the one that doesn't work just in case you have it. The good one is black and the iffy ones are a silver color. Point is, not all external enclosures work well. USB ports in my experience really complicate matters. I like USB for my camera and my little card reader, that I use to get deer pics off my trail camera. Other than that, I try to avoid USB. Oh, printers tend to work too. Dale :-) :-)
Re: [gentoo-user] why is writing to an async-mounted USB disk so slow?
Okay, thank you, I'll try that (in (33 - 24) hours ;-) ) On 11/02/19 16:40, Mick wrote: On Saturday, 2 November 2019 15:15:31 GMT n952162 wrote: I'm getting 13k bps writing to a Toshiba 3T drive over a USB/Sata connection. It' take 33 hours to transfer a 200meg file. I mounted it async but then see that ext4 ignores the async option on mounts. What am I doing wrong? Probably nothing, other than using a faulty port/cable and/or faulty drive. Have a look at dmesg and syslog for I/O errors. Have you tried a different port and different USB cable? Unless it is an eSATA, in which case you will need an eSATA port/cable.
Re: [gentoo-user] why is writing to an async-mounted USB disk so slow?
On Saturday, 2 November 2019 15:15:31 GMT n952162 wrote: > I'm getting 13k bps writing to a Toshiba 3T drive over a USB/Sata > connection. It' take 33 hours to transfer a 200meg file. > > I mounted it async but then see that ext4 ignores the async option on > mounts. > > What am I doing wrong? Probably nothing, other than using a faulty port/cable and/or faulty drive. Have a look at dmesg and syslog for I/O errors. Have you tried a different port and different USB cable? Unless it is an eSATA, in which case you will need an eSATA port/cable. -- Regards, Mick signature.asc Description: This is a digitally signed message part.
