• "Backblaze Hard Drive Stats Q1 2019"

    From Lynn McGuire@21:1/5 to All on Tue Apr 30 14:06:44 2019
    XPost: alt.comp.hardware.pc-homebuilt

    "Backblaze Hard Drive Stats Q1 2019"
    https://www.backblaze.com/blog/backblaze-hard-drive-stats-q1-2019/

    "As of March 31, 2019, Backblaze had 106,238 spinning hard drives in our
    cloud storage ecosystem spread across three data centers. Of that
    number, there were 1,913 boot drives and 104,325 data drives. This
    review looks at the Q1 2019 and lifetime hard drive failure rates of the
    data drive models currently in operation in our data centers and
    provides a handful of insights and observations along the way. In
    addition, we have a few questions for you to ponder near the end of the
    post. As always, we look forward to your comments."

    Uh oh, those 12 TB Seagates are trending up. I suspect that they are
    not helium drives.

    I wish that they had more WDC drives but apparently they are driven by economics and WDC drives are definitely more expensive than Seagate
    drives. I do not think that HGST drives are old WDC drives but I could
    be wrong.

    Lynn

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    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Paul@21:1/5 to Lynn McGuire on Tue Apr 30 18:18:46 2019
    XPost: alt.comp.hardware.pc-homebuilt

    Lynn McGuire wrote:
    "Backblaze Hard Drive Stats Q1 2019"
    https://www.backblaze.com/blog/backblaze-hard-drive-stats-q1-2019/

    "As of March 31, 2019, Backblaze had 106,238 spinning hard drives in our cloud storage ecosystem spread across three data centers. Of that
    number, there were 1,913 boot drives and 104,325 data drives. This
    review looks at the Q1 2019 and lifetime hard drive failure rates of the
    data drive models currently in operation in our data centers and
    provides a handful of insights and observations along the way. In
    addition, we have a few questions for you to ponder near the end of the
    post. As always, we look forward to your comments."

    Uh oh, those 12 TB Seagates are trending up. I suspect that they are
    not helium drives.

    I wish that they had more WDC drives but apparently they are driven by economics and WDC drives are definitely more expensive than Seagate
    drives. I do not think that HGST drives are old WDC drives but I could
    be wrong.

    Lynn


    ST12000NM0007

    Some have an unblemished cover.

    https://images-na.ssl-images-amazon.com/images/I/91klmMOWoDL._SL1500_.jpg

    Some have a circular addition, as if the cover had a hole
    in it for some process step, and needed a cover afterwards.
    Which seems absurd, considering how much trouble they go to,
    to seal the top of the drive. It would not be like them
    to make "decal decorations" for arbitrary reasons, so that
    has some sort of function.

    https://images-na.ssl-images-amazon.com/images/I/71USezbK7ML._SX425_.jpg

    Both units have the same part number. Some references are made
    to "Malaysia", as if more than one plant makes them.

    This is a picture of what is underneath the cover. There are two seating planes. The inner plane is for the adhesive seal, the outer plane is
    for the welded cover (so the user cannot put mechanical stress on
    the sealing surface). And you can see the black thing in the lower right
    corner of the picture, might line up with that circular thing above it.
    I count eight platters. On the upper left corner, you can see the
    filter pak for particulate. There are no gas-flow shaping barriers.

    https://microless.com/cdn/products/f18e4964c96110fb07f12102f30fdde8-hi.jpg

    Based on design, it's a helium drive. If it was air-filled,
    there would be a breather hole. Those platters would also be
    "thinner that regular platters"

    The more platters = more trouble.

    Paul

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lynn McGuire@21:1/5 to Paul on Thu May 2 17:15:44 2019
    XPost: alt.comp.hardware.pc-homebuilt

    On 4/30/2019 5:18 PM, Paul wrote:
    Lynn McGuire wrote:
    "Backblaze Hard Drive Stats Q1 2019"
       https://www.backblaze.com/blog/backblaze-hard-drive-stats-q1-2019/

    "As of March 31, 2019, Backblaze had 106,238 spinning hard drives in
    our cloud storage ecosystem spread across three data centers. Of that
    number, there were 1,913 boot drives and 104,325 data drives. This
    review looks at the Q1 2019 and lifetime hard drive failure rates of
    the data drive models currently in operation in our data centers and
    provides a handful of insights and observations along the way. In
    addition, we have a few questions for you to ponder near the end of
    the post. As always, we look forward to your comments."

    Uh oh, those 12 TB Seagates are trending up.  I suspect that they are
    not helium drives.

    I wish that they had more WDC drives but apparently they are driven by
    economics and WDC drives are definitely more expensive than Seagate
    drives.  I do not think that HGST drives are old WDC drives but I
    could be wrong.

    Lynn


    ST12000NM0007

    Some have an unblemished cover.

    https://images-na.ssl-images-amazon.com/images/I/91klmMOWoDL._SL1500_.jpg

    Some have a circular addition, as if the cover had a hole
    in it for some process step, and needed a cover afterwards.
    Which seems absurd, considering how much trouble they go to,
    to seal the top of the drive. It would not be like them
    to make "decal decorations" for arbitrary reasons, so that
    has some sort of function.

    https://images-na.ssl-images-amazon.com/images/I/71USezbK7ML._SX425_.jpg

    Both units have the same part number. Some references are made
    to "Malaysia", as if more than one plant makes them.

    This is a picture of what is underneath the cover. There are two seating planes. The inner plane is for the adhesive seal, the outer plane is
    for the welded cover (so the user cannot put mechanical stress on
    the sealing surface). And you can see the black thing in the lower right corner of the picture, might line up with that circular thing above it.
    I count eight platters. On the upper left corner, you can see the
    filter pak for particulate. There are no gas-flow shaping barriers.

    https://microless.com/cdn/products/f18e4964c96110fb07f12102f30fdde8-hi.jpg

    Based on design, it's a helium drive. If it was air-filled,
    there would be a breather hole. Those platters would also be
    "thinner that regular platters"

    The more platters = more trouble.

       Paul

    Thanks !

    Is that 8 platters ? wow !

    Lynn

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Paul@21:1/5 to Lynn McGuire on Thu May 2 18:52:14 2019
    XPost: alt.comp.hardware.pc-homebuilt

    Lynn McGuire wrote:
    On 4/30/2019 5:18 PM, Paul wrote:
    Lynn McGuire wrote:
    "Backblaze Hard Drive Stats Q1 2019"
    https://www.backblaze.com/blog/backblaze-hard-drive-stats-q1-2019/

    "As of March 31, 2019, Backblaze had 106,238 spinning hard drives in
    our cloud storage ecosystem spread across three data centers. Of that
    number, there were 1,913 boot drives and 104,325 data drives. This
    review looks at the Q1 2019 and lifetime hard drive failure rates of
    the data drive models currently in operation in our data centers and
    provides a handful of insights and observations along the way. In
    addition, we have a few questions for you to ponder near the end of
    the post. As always, we look forward to your comments."

    Uh oh, those 12 TB Seagates are trending up. I suspect that they are
    not helium drives.

    I wish that they had more WDC drives but apparently they are driven
    by economics and WDC drives are definitely more expensive than
    Seagate drives. I do not think that HGST drives are old WDC drives
    but I could be wrong.

    Lynn


    ST12000NM0007

    Some have an unblemished cover.

    https://images-na.ssl-images-amazon.com/images/I/91klmMOWoDL._SL1500_.jpg

    Some have a circular addition, as if the cover had a hole
    in it for some process step, and needed a cover afterwards.
    Which seems absurd, considering how much trouble they go to,
    to seal the top of the drive. It would not be like them
    to make "decal decorations" for arbitrary reasons, so that
    has some sort of function.

    https://images-na.ssl-images-amazon.com/images/I/71USezbK7ML._SX425_.jpg

    Both units have the same part number. Some references are made
    to "Malaysia", as if more than one plant makes them.

    This is a picture of what is underneath the cover. There are two seating
    planes. The inner plane is for the adhesive seal, the outer plane is
    for the welded cover (so the user cannot put mechanical stress on
    the sealing surface). And you can see the black thing in the lower right
    corner of the picture, might line up with that circular thing above it.
    I count eight platters. On the upper left corner, you can see the
    filter pak for particulate. There are no gas-flow shaping barriers.

    https://microless.com/cdn/products/f18e4964c96110fb07f12102f30fdde8-hi.jpg >>

    Based on design, it's a helium drive. If it was air-filled,
    there would be a breather hole. Those platters would also be
    "thinner that regular platters"

    The more platters = more trouble.

    Paul

    Thanks !

    Is that 8 platters ? wow !

    Lynn

    8 by 1.5TB would give you a 12TB drive.
    At a guess, 1.5TB tech would be PMR.

    Whereas 6 by 2TB could build a 12TB drive
    as well. I think 2TB is achieved by SMR
    for writes. And then the write performance wouldn't
    be as steady and dependable.

    They don't always give platter info, so
    finding a picture is an instant way to get
    proof.

    Paul

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    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jerryab@juno.com@21:1/5 to lynnmcguire5@gmail.com on Fri May 3 10:10:29 2019
    On Thu, 2 May 2019 17:15:44 -0500, Lynn McGuire
    <lynnmcguire5@gmail.com> wrote:

    Is that 8 platters ? wow !

    https://www.seagate.com/www-content/product-content/barracuda-fam/barracuda-new/en-us/docs/100835983a.pdf

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