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WD Black
I'm wondering if there are performance issues with WD- Black hard drives.
On one of my Wife's Win10 machine, there was constant disk activity that I could not trace down...all seemed normal. I decided to clone the drive to a SSD and found a nice improvement that I thought was simply a function of the SSD. Then realized that on my main machine running Ubuntu 20.04 that also had a WD-Black drive, there also seemed to be excess drive activity. Since I have not done a disk clone backup in years, I cloned the drive to a Seagate SATA and found the excess drive activity had been cured. At the time I purchased the WD-Black, I thought I was getting a top of the line drive. |
#2
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WD Black
On Fri, 26 Jun 2020 17:16:32 -0400, philo wrote:
I'm wondering if there are performance issues with WD- Black hard drives. On one of my Wife's Win10 machine, there was constant disk activity that I could not trace down...all seemed normal. I decided to clone the drive to a SSD and found a nice improvement that I thought was simply a function of the SSD. Then realized that on my main machine running Ubuntu 20.04 that also had a WD-Black drive, there also seemed to be excess drive activity. Since I have not done a disk clone backup in years, I cloned the drive to a Seagate SATA and found the excess drive activity had been cured. At the time I purchased the WD-Black, I thought I was getting a top of the line drive. If it's a recent drive, it may be using the inferior Shingled Magnetic Recording (SMR) technology. See https://www.extremetech.com/computin...drives-use-smr for a list of which drives use the lower performance recording method. Regards, Dave Hodgins -- Change to for email replies. |
#3
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WD Black
On 6/26/2020 4:40 PM, David W. Hodgins wrote:
On Fri, 26 Jun 2020 17:16:32 -0400, philo wrote: I'm wondering if there are performance issues with WD- Black hard drives. On one of my Wife's Win10 machine, there was constant disk activity that I could not trace down...all seemed normal. I decided to clone the drive to a SSD and found a nice improvement that I thought was simply a function of the SSD. Then realized that on my main machine running Ubuntu 20.04 that also had a WD-Black drive, there also seemed to be excess drive activity. Since I have not done a disk clone backup in years, I cloned the drive to a Seagate SATA and found the excess drive activity had been cured. At the time I purchased the WD-Black, I thought I was getting a top of the line drive. If it's a recent drive, it may be using the inferior Shingled Magnetic Recording (SMR) technology. See https://www.extremetech.com/computin...drives-use-smr for a list of which drives use the lower performance recording method. Regards, Dave Hodgins Thanks, but my two drives are the CMR type At any rate, I think I will keep them just for backups |
#4
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WD Black
philo wrote:
On 6/26/2020 4:40 PM, David W. Hodgins wrote: On Fri, 26 Jun 2020 17:16:32 -0400, philo wrote: I'm wondering if there are performance issues with WD- Black hard drives. On one of my Wife's Win10 machine, there was constant disk activity that I could not trace down...all seemed normal. I decided to clone the drive to a SSD and found a nice improvement that I thought was simply a function of the SSD. Then realized that on my main machine running Ubuntu 20.04 that also had a WD-Black drive, there also seemed to be excess drive activity. Since I have not done a disk clone backup in years, I cloned the drive to a Seagate SATA and found the excess drive activity had been cured. At the time I purchased the WD-Black, I thought I was getting a top of the line drive. If it's a recent drive, it may be using the inferior Shingled Magnetic Recording (SMR) technology. See https://www.extremetech.com/computin...drives-use-smr for a list of which drives use the lower performance recording method. Regards, Dave Hodgins Thanks, but my two drives are the CMR type At any rate, I think I will keep them just for backups Using the available test utility from WDC, do the short and the long test. I'm not particularly interested in the results, just interested that, as a side-effect of running the external utility, the internal short and/or long testing, stops... To find the utility, sometimes they make you hunt down the drive model number first, then the download table shows a test utility. A modern hard drive *can* have sustained internal activity, combined with a refusal to respond from the outside. This happens with "secure erase" or "enhanced secure erase" commands being issued. Normal software doesn't use those, and stuff like the CMRR utility could do it. The symptoms do not sound like a match for that one. I'm not aware of any other patterns that can be produced inside. There's no "wear leveling" in a hard drive. There are little test routines that drives use, but what the output of those would be, to the user, is a mystery. Like, if an internal short test fails, how does the drive tell you that, exactly ? Normally, the information would only be imparted, if an external utility commanded it, and the status that comes back tells you the result. One IBM drive used to self-test, every 71 seconds, and it was accompanied by a "screeching sound", since the test pattern caused seeks at high speed. That might have been on a 15K drive. It made the drive only suitable for locked server rooms, as no human could put up with such a noise inside a house or apartment. But again, to what purpose ? How does the drive tell you that something is wrong ? It can piggyback a sense code onto some unassuming SCSI command, but with SATA I don't know if the interface logically supports that sort of thing. Paul |
#5
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WD Black
On 6/26/20 5:05 PM, Paul wrote:
philo wrote: On 6/26/2020 4:40 PM, David W. Hodgins wrote: On Fri, 26 Jun 2020 17:16:32 -0400, philo wrote: I'm wondering if there are performance issues with WD- Black hard drives. On one of my Wife's Win10 machine, there was constant disk activity that I could not trace down...all seemed normal. I decided to clone the drive to a SSD and found a nice improvement that I thought was simply a function of the SSD. Then realized that on my main machine running Ubuntu 20.04 that also had a WD-Black drive, there also seemed to be excess drive activity. Since I have not done a disk clone backup in years, I cloned the drive to a Seagate SATA and found the excess drive activity had been cured. At the time I purchased the WD-Black, I thought I was getting a top of the line drive. If it's a recent drive, it may be using the inferior Shingled Magnetic Recording (SMR) technology. See https://www.extremetech.com/computin...drives-use-smr for a list of which drives use the lower performance recording method. Regards, Dave Hodgins Thanks, but my two drives are the CMR type At any rate, I think I will keep them just for backups Using the available test utility from WDC, do the short and the long test. I'm not particularly interested in the results, just interested that, as a side-effect of running the external utility, the internal short and/or long testing, stops... To find the utility, sometimes they make you hunt down the drive model number first, then the download table shows a test utility. A modern hard drive *can* have sustained internal activity, combined with a refusal to respond from the outside. This happens with "secure erase" or "enhanced secure erase" commands being issued. Normal software doesn't use those, and stuff like the CMRR utility could do it. The symptoms do not sound like a match for that one. I'm not aware of any other patterns that can be produced inside. There's no "wear leveling" in a hard drive. There are little test routines that drives use, but what the output of those would be, to the user, is a mystery. Like, if an internal short test fails, how does the drive tell you that, exactly ? Normally, the information would only be imparted, if an external utility commanded it, and the status that comes back tells you the result. One IBM drive used to self-test, every 71 seconds, and it was accompanied by a "screeching sound", since the test pattern caused seeks at high speed. That might have been on a 15K drive. It made the drive only suitable for locked server rooms, as no human could put up with such a noise inside a house or apartment. But again, to what purpose ? How does the drive tell you that something is wrong ? It can piggyback a sense code onto some unassuming SCSI command, but with SATA I don't know if the interface logically supports that sort of thing. Â*Â* Paul Thanks Paul. For now I have the drives put away. Will run some tests on them next time I get a chance. Looking to the future though, I'll be moving everything to SSD. Seems like only yesterday I upgraded from an 850 meg drive to a 2 Gig. I was so nervous, I broke out into a cold sweat! |
#6
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WD Black
philo wrote:
On 6/26/20 5:05 PM, Paul wrote: philo wrote: On 6/26/2020 4:40 PM, David W. Hodgins wrote: On Fri, 26 Jun 2020 17:16:32 -0400, philo wrote: I'm wondering if there are performance issues with WD- Black hard drives. On one of my Wife's Win10 machine, there was constant disk activity that I could not trace down...all seemed normal. I decided to clone the drive to a SSD and found a nice improvement that I thought was simply a function of the SSD. Then realized that on my main machine running Ubuntu 20.04 that also had a WD-Black drive, there also seemed to be excess drive activity. Since I have not done a disk clone backup in years, I cloned the drive to a Seagate SATA and found the excess drive activity had been cured. At the time I purchased the WD-Black, I thought I was getting a top of the line drive. If it's a recent drive, it may be using the inferior Shingled Magnetic Recording (SMR) technology. See https://www.extremetech.com/computin...drives-use-smr for a list of which drives use the lower performance recording method. Regards, Dave Hodgins Thanks, but my two drives are the CMR type At any rate, I think I will keep them just for backups Using the available test utility from WDC, do the short and the long test. I'm not particularly interested in the results, just interested that, as a side-effect of running the external utility, the internal short and/or long testing, stops... To find the utility, sometimes they make you hunt down the drive model number first, then the download table shows a test utility. A modern hard drive *can* have sustained internal activity, combined with a refusal to respond from the outside. This happens with "secure erase" or "enhanced secure erase" commands being issued. Normal software doesn't use those, and stuff like the CMRR utility could do it. The symptoms do not sound like a match for that one. I'm not aware of any other patterns that can be produced inside. There's no "wear leveling" in a hard drive. There are little test routines that drives use, but what the output of those would be, to the user, is a mystery. Like, if an internal short test fails, how does the drive tell you that, exactly ? Normally, the information would only be imparted, if an external utility commanded it, and the status that comes back tells you the result. One IBM drive used to self-test, every 71 seconds, and it was accompanied by a "screeching sound", since the test pattern caused seeks at high speed. That might have been on a 15K drive. It made the drive only suitable for locked server rooms, as no human could put up with such a noise inside a house or apartment. But again, to what purpose ? How does the drive tell you that something is wrong ? It can piggyback a sense code onto some unassuming SCSI command, but with SATA I don't know if the interface logically supports that sort of thing. Paul Thanks Paul. For now I have the drives put away. Will run some tests on them next time I get a chance. Looking to the future though, I'll be moving everything to SSD. Seems like only yesterday I upgraded from an 850 meg drive to a 2 Gig. I was so nervous, I broke out into a cold sweat! Do you have the drive model number handy ? I'd like to use that for some more Googling. Just using WDC Black may not be enough, to find a similar experience. It might be a particular afflicted model (because every firmware is different, and if you have 500GB/1TB/2TB drives, the last two use a different firmware than the first one - sometimes particular capacities of drives have a firmware bug). Paul |
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