Recomended Bolt Internal Hard Drive

Discussion in 'TiVo Upgrade Center' started by rick123, Nov 22, 2016.

  1. Koan

    Koan Member

    Jan 8, 2002
    Does hard drive cache size make a difference with the Bolt since the OS is on a flash chip? I noticed that the Toshiba MQ03ABB300 and the Western Digital WD5000LUCT AV have a 16MB cache, the 3TB WD Blue WD30NPRZ has a 64MB cache, and the 2TB WD Blue WD20NPRZ as well as another 3TB WD Blue drive have only an 8MB cache.
  2. Redoctobyr

    Redoctobyr Active Member

    Jun 21, 2008
    The only difference that should make is relative to hard drive performance. I'd speculate it wouldn't make much difference. But I don't think the HD cache size will have any relation to how the OS is stored.

    You don't need to worry about the HD cache size being big enough to hold the OS or anything like that. Sorry if I've misunderstood the question.
    Koan likes this.
  3. Koan

    Koan Member

    Jan 8, 2002
    I just meant that the OS is probably not a consideration because it is stored separately. So would a larger cache size be of any benefit with the hard disk read/write activity typically performed by the Bolt? As you speculated, it may not make much of a difference. I'm thinking of buying one with an 8MB cache for my new Bolt, but thought I should ask in case anyone knows of an issue with that.
  4. Redoctobyr

    Redoctobyr Active Member

    Jun 21, 2008
    Speculation only: the cache size likely won't make a noticeable difference in performance.

    I wouldn't let cache size steer me away from a brand that I was more comfortable with, for instance. Or towards a drive not suited to this application (like SMR, or a drive that produces too much heat).

    Maybe if someone has briefly run a TiVo using an SSD, they could tell us if using a super-fast drive makes a noticeable difference in speed.

    But my inclination would be don't worry about it. I don't even know the cache size of my Toshiba 3TB, but it works just fine as far as I can tell.
  5. jmbach

    jmbach der Neuerer

    Jan 1, 2009
    Pure speculation but it may affect the drives ability to handle simultaneous streams.
  6. aaronwt

    aaronwt UHD Addict

    Jan 31, 2002
    It's only a minimum of five or seven read/write concurrent streams depending on whether it is a four tuner or six tuner model. No issue for any 5400 rpm drive.

    I don't recall ever having an issue with low cache drives in the past. But I think my current 4TB drives in my Bolts have a 128MB cache. I've had no issue with 12 or 13 concurrent read/write streams when I tested the Bolts. But then the stock 500 GB drives, with a lower cache, also had no issue. And those had a 16MB cache.
    Last edited: Jul 12, 2017
  7. Koan

    Koan Member

    Jan 8, 2002
    I noticed that the 2TB WD WD20NPVZ, which has an 8MB cache, has a few 5 star reviews on Amazon from Bolt users. So I expect the cache size isn't an issue.
  8. Aug 7, 2017 #128 of 132

    Jim.Rice New Member

    Dec 3, 2016
    Does anyone know or have any feedback on using the internal drive from a 4TB Seagate external drive to upgrade a refurbished TiVo 500GB Bolt? After all I've been reading, I thought the Seagate Backup Plus drive (STDR4000100) was going to be my go-to drive, but now I'm not so sure about using that drive after reading about the 4-light TiVo error (apparently) caused by the Seagate firmware. Has that issue been fixed, perhaps by a firmware update? Is it better instead to go with an OEM Seagate 4TB drive and skip removing the drive from the external case, or would it be better to go with a smaller capacity Western Digital or Toshiba drive? After reading this forum, I'm also planning to purchase the XS-2 fan to try and keep the inside cool and help with the device life. Thanks!
  9. Aug 7, 2017 #129 of 132

    fcfc2 Well-Known Member

    Feb 19, 2015
    I don't know exactly where and what you are reading, but any of the currently available Seagate 2.5" drives are SMR. Some with the earliest firmware seem to have been lucky, but not with the current drives. It is recommended to use only PMR drives, and the only readily available one in the largest size, 3TB, is the Toshiba, but I still recommend running MSFR on it even though it isn't technically necessary. The whole fan thing is very dependent on your particular unit, some claim it isn't the fan that is loud, others think it is something else with the motherboard entirely, some have reported dramatic reductions to the temperature, others not so much. The Bolt runs hotter due to the faster cpu, and more compact/cheaper case, and I think to some really poor design features like a relatively tiny amount of ventilation. If it makes you feel better to change out the fan please do so.
  10. awesomejdub

    awesomejdub New Member

    Oct 8, 2011
    I mistakenly used the drive from a seagate backup plus since I had one on hand. 2 days later I am getting the video locking up a lot. Ordering the Toshiba right now. I should have listened to everyone on this forum.
  11. ClearToLand

    ClearToLand Old !*#$% Tinkerer!

    Jul 9, 2001
    Central Jersey
    You should pull the Seagate and run a Seagate Low-Level Diagnostics on the HDD in a PC.

    AFAIK, unless the Seagate is drawing more power than the Bolt can supply, the CONs against using a non-recommended HDD (I'm more experienced with the Roamio) are mostly shorter lifespan. Is the RPM 7200 or less?
  12. Alltrac92

    Alltrac92 New Member

    Sep 13, 2018
    Thank you for your notes here. I recently used the same hard drive on a Bolt and everything is working great!

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