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Thread: Using an SSD HD as your music Library to replace your USB HD

  1. #11
    Join Date: Jan 2008

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    I'm BigBobJoylove.

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    Being in IT Iíve been using SSD for years in everything (including the PS4). Much better than hard drives, data streaming is around 9x quicker, little heat, no moving parts, very reliable.

    Why wouldnít you? Well, SSDs are essentially like millions of light switches. If a failure occurs then recovery is exceptionally unlikely as Ďoffí is Ďoffí, whereas HDDs tend to fail gradually on the whole, and leave a magnetic footprint of data which can relatively easily recovered.

    Saying that, a Crucial or Samsung (I favour Samsung) SSD hardly ever fails. I use either in all the SSD upgrades I do on Macs.

    Whatever you do, make sure you have at least two backups. Thatís a good rule for all computer systems. Iíve seen clients lose their businesses due to lost data, because they didnít have a backup in place.

  2. #12
    Join Date: Mar 2017

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    I'm Dennis.

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    I was told, rightly or wrongly, that SSDs have inbuilt alternative circuits which can come in and substitute, and override the failed transistors, is that right?

  3. #13
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    I would suggest for quality FBA playback SSD would be a minimum requirement
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  4. #14
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    Quote Originally Posted by Pharos View Post
    I was told, rightly or wrongly, that SSDs have inbuilt alternative circuits which can come in and substitute, and override the failed transistors, is that right?
    Not to my knowledge, when they fail, thatís it normally. They tend to fail on block count when they go wrong. Most operating systems will work around it and mark the bad sectors as with hard drives, but if data resides on those blocks then itís lost unless the failure is gradual, which is unlikely on an SSD.

    If the last block becomes unreadable then the drive is dead and the data lost. As with any storage system, regular checks are essential (Drive DX is the best for Mac, Techtool Pro is also good) and replacing the drive immediately upon a warning is a must-do. Thatís why multiple back ups are required as itís easier to restore from a working back up than try and recover data from a failing or failed drive.

  5. #15
    Join Date: Apr 2008

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    Doesn't Windows intelligently handle SSDs in some way, probably better than Linux O/Ss for a Pi which probably simply treat SSDs as an HDD?
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  6. #16
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    The only extra handling over an HDD is garbage collection (TRIM), but thatís mostly taken care of by the SSD firmware these days.

    Macs have a TRIM system built in which is utilised on their computers with a factory SSD, but itís disabled for third party drives, but again itís usually handled by the drive itself or by manually running a repair on Disk Utility.

  7. #17
    Join Date: Sep 2017

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    I'm Pavel.

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    Quote Originally Posted by Filterlab View Post
    The only extra handling over an HDD is garbage collection (TRIM), but that’s mostly taken care of by the SSD firmware these days.

    Macs have a TRIM system built in which is utilised on their computers with a factory SSD, but it’s disabled for third party drives, but again it’s usually handled by the drive itself or by manually running a repair on Disk Utility.
    Since OS X 10.11, it's possible to enable TRIM for any SSD on a Mac: sudo trimforce enable

    USB SSDs usually don't support TRIM since this is originally a SCSI command. Only drives that support UASP (USB Attached SCSI Protocol) support TRIM over USB. There's no difference between Windows and Linux when handling UASP-enabled USB drives, macOS doesn't support TRIM over USB at all so in the end it all depends on the drive's internal garbage collection.

  8. #18
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    Indeed, that's why it's not worth running the trimforce command, the firmware on SSDs takes care of garbage collection, and the wear levelling is so ludicrously high on SSDs these days that in most cases the write limits won't be hit before the computer is replaced anyway.
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