• "Backblaze Drive Stats for Q3 2021"

    From Lynn McGuire@21:1/5 to All on Tue Nov 2 13:31:22 2021
    XPost: alt.comp.hardware.pc-homebuilt

    "Backblaze Drive Stats for Q3 2021"
    https://www.backblaze.com/blog/backblaze-drive-stats-for-q3-2021/

    "As of September 30, 2021, Backblaze had 194,749 drives spread across
    four data centers on two continents. Of that number, there were 3,537
    boot drives and 191,212 data drives. The boot drives consisted of 1,557
    hard drives and 1,980 SSDs. This report will review the quarterly and
    lifetime failure rates for our data drives, as well as compare failure
    rates for our SSD and HDD boot drives. Along the way, we’ll share our observations and insights of the data presented and, as always, we look
    forward to your comments below."

    That is a lot of drives. And their 50,000 new hard drives are 14 TB and
    16 TB. The channels must be getting full of drives.

    Lynn

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  • From Char Jackson@21:1/5 to All on Wed Nov 24 22:09:05 2021
    XPost: alt.comp.hardware.pc-homebuilt

    On Tue, 2 Nov 2021 13:31:22 -0500, Lynn McGuire <lynnmcguire5@gmail.com>
    wrote:

    "Backblaze Drive Stats for Q3 2021"
    https://www.backblaze.com/blog/backblaze-drive-stats-for-q3-2021/

    "As of September 30, 2021, Backblaze had 194,749 drives spread across
    four data centers on two continents. Of that number, there were 3,537
    boot drives and 191,212 data drives. The boot drives consisted of 1,557
    hard drives and 1,980 SSDs. This report will review the quarterly and >lifetime failure rates for our data drives, as well as compare failure
    rates for our SSD and HDD boot drives. Along the way, we’ll share our >observations and insights of the data presented and, as always, we look >forward to your comments below."

    That is a lot of drives. And their 50,000 new hard drives are 14 TB and
    16 TB. The channels must be getting full of drives.

    From that article:

    Outliers
    There are two drives in the quarterly results which require additional information beyond the raw numbers presented. Let’s start with the
    Seagate 12TB drive (model: ST12000NM0007). Back in January of 2020, we
    noted that these drives were not working optimally in our environment
    and higher failure rates were predicted. Together with Seagate, we
    decided to remove these drives from service over the coming months.
    Covid-19 delayed the project some and the results are the predicted
    higher failure rates. We expect all of the remaining drives to be
    removed during Q4.


    Hmm, I've had a pair of Seagate 12TB (model: ST12000NM0007) installed
    for about 18 months now. I monitor all of my drives with Hard Disk
    Sentinel. Just in the past 3 days the reported health of one of those
    12TB drives went from 100% to 59% to 51%. The clock seems to be ticking
    on that drive and I could lose it sooner rather than later..

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  • From Neill Massello@21:1/5 to Lynn McGuire on Thu Nov 25 05:52:31 2021
    XPost: alt.comp.hardware.pc-homebuilt

    On 2021-11-02 at 11:31:22 MDT, "Lynn McGuire" <lynnmcguire5@gmail.com> wrote:

    That is a lot of drives. And their 50,000 new hard drives are 14 TB and
    16 TB. The channels must be getting full of drives.

    And all that angular momentum is affecting the rotation of the earth! Does Greta Thunberg know?

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  • From Lynn McGuire@21:1/5 to Char Jackson on Mon Nov 29 15:04:16 2021
    XPost: alt.comp.hardware.pc-homebuilt

    On 11/24/2021 10:09 PM, Char Jackson wrote:
    On Tue, 2 Nov 2021 13:31:22 -0500, Lynn McGuire <lynnmcguire5@gmail.com> wrote:

    "Backblaze Drive Stats for Q3 2021"
    https://www.backblaze.com/blog/backblaze-drive-stats-for-q3-2021/

    "As of September 30, 2021, Backblaze had 194,749 drives spread across
    four data centers on two continents. Of that number, there were 3,537
    boot drives and 191,212 data drives. The boot drives consisted of 1,557
    hard drives and 1,980 SSDs. This report will review the quarterly and
    lifetime failure rates for our data drives, as well as compare failure
    rates for our SSD and HDD boot drives. Along the way, we’ll share our
    observations and insights of the data presented and, as always, we look
    forward to your comments below."

    That is a lot of drives. And their 50,000 new hard drives are 14 TB and
    16 TB. The channels must be getting full of drives.

    From that article:

    Outliers
    There are two drives in the quarterly results which require additional information beyond the raw numbers presented. Let’s start with the
    Seagate 12TB drive (model: ST12000NM0007). Back in January of 2020, we
    noted that these drives were not working optimally in our environment
    and higher failure rates were predicted. Together with Seagate, we
    decided to remove these drives from service over the coming months.
    Covid-19 delayed the project some and the results are the predicted
    higher failure rates. We expect all of the remaining drives to be
    removed during Q4.


    Hmm, I've had a pair of Seagate 12TB (model: ST12000NM0007) installed
    for about 18 months now. I monitor all of my drives with Hard Disk
    Sentinel. Just in the past 3 days the reported health of one of those
    12TB drives went from 100% to 59% to 51%. The clock seems to be ticking
    on that drive and I could lose it sooner rather than later..

    Sounds like it is hammer time !

    Lynn

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Paul@21:1/5 to Lynn McGuire on Tue Nov 30 03:44:40 2021
    XPost: alt.comp.hardware.pc-homebuilt

    On 11/29/2021 4:04 PM, Lynn McGuire wrote:

    Hmm, I've had a pair of Seagate 12TB (model: ST12000NM0007) installed
    for about 18 months now. I monitor all of my drives with Hard Disk
    Sentinel. Just in the past 3 days the reported health of one of those
    12TB drives went from 100% to 59% to 51%. The clock seems to be ticking
    on that drive and I could lose it sooner rather than later..

    Sounds like it is hammer time !

    Lynn

    I found a reference to a previous Seagate incident like that one.

    The heads stay in one place when the disk is idle. The air pressure
    under the flying head, passing over the track again and again,
    pushes the lube off the track and degrades lube properties, until
    there is "wear". Does this mean Seagate has taken some backward
    step on lube ? Dunno. They stop using truly "liquid" lubes, maybe
    30 years ago. Because they could see "ripples" in them :-) Modern
    lubes are like a polymer car finish (tough as nails, generally).

    For the 6TB Seagate failing that way, the instructions are to
    "install firmware update to drive *before* it fails". The purpose of
    that, is the drive pushes the head around on its own (and since code
    like this has been around forever, they should have done this in the
    first place). There have been other drives that do the slow chacha,
    to prevent burning the media.

    So as long as the track hasn't burned up all the spares, if there
    is a firmware update, you might get to keep using the drive. But the
    track with the lube failure, maybe the whole thing will end up
    spared out at some point.

    If it generates physical debris, the drive is less likely to "last".

    Once you can't read the firmware load off the platter, you are cooked. Apparently, on this kind of lube failure, the heads (being as small as
    they are), get splattered with debris.

    Summary: Check for FW update... before it is too late.

    Paul

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  • From Char Jackson@21:1/5 to Paul on Tue Nov 30 21:33:09 2021
    XPost: alt.comp.hardware.pc-homebuilt

    On Tue, 30 Nov 2021 03:44:40 -0500, Paul <nospam@needed.invalid> wrote:

    On 11/29/2021 4:04 PM, Lynn McGuire wrote:

    Hmm, I've had a pair of Seagate 12TB (model: ST12000NM0007) installed
    for about 18 months now. I monitor all of my drives with Hard Disk
    Sentinel. Just in the past 3 days the reported health of one of those
    12TB drives went from 100% to 59% to 51%. The clock seems to be ticking
    on that drive and I could lose it sooner rather than later..

    Sounds like it is hammer time !

    Lynn

    I found a reference to a previous Seagate incident like that one.

    The heads stay in one place when the disk is idle. The air pressure
    under the flying head, passing over the track again and again,
    pushes the lube off the track and degrades lube properties, until
    there is "wear". Does this mean Seagate has taken some backward
    step on lube ? Dunno. They stop using truly "liquid" lubes, maybe
    30 years ago. Because they could see "ripples" in them :-) Modern
    lubes are like a polymer car finish (tough as nails, generally).

    For the 6TB Seagate failing that way, the instructions are to
    "install firmware update to drive *before* it fails". The purpose of
    that, is the drive pushes the head around on its own (and since code
    like this has been around forever, they should have done this in the
    first place). There have been other drives that do the slow chacha,
    to prevent burning the media.

    So as long as the track hasn't burned up all the spares, if there
    is a firmware update, you might get to keep using the drive. But the
    track with the lube failure, maybe the whole thing will end up
    spared out at some point.

    If it generates physical debris, the drive is less likely to "last".

    Once you can't read the firmware load off the platter, you are cooked. >Apparently, on this kind of lube failure, the heads (being as small as
    they are), get splattered with debris.

    Summary: Check for FW update... before it is too late.

    As of today it's been replaced by a pair of WD 14TB drives, so I'll get
    to it in good time.

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