However, Backblaze's report does give us a unique look into the results of long-term hard drive use. Keep in mind that the sample group only consists of drives that Backblaze had on hand, and they are of varying ages, with some used for more days than others.
All models included at least 60 drives that were not previously used for testing. The 2022 report shared on Tuesday examines 230,921 hard drives across 29 models from HGST, Seagate, Toshiba, and WDC, with capacities ranging from 4–16TB. Since 2013, Backblaze, a backup and cloud storage company, has published an annual report analyzing the AFRs of hard drives in its data center. Data Backblaze shared this week highlights how a hard drive's annualized failure rate (AFR) can increase with age. Older drives that have seen a lot of use, however, may not be as reliable as before. So effectively, unless I use an iOS device, I can only see and play my "owned" tracks.SSDs have usurped hard disk drives (HDDs) when it comes to performance, but whether building a network-attached storage (NAS) or having high-capacity needs on a budget, plenty of people still rely on spinning platters. And another odd thing - the whole library shows up just fine, Apple Music and all (other than additions attempted since this problem), on my iPhone and iPad. This error message looks very similar to the way things were a year ago, when Match was limited to 25k tracks and one's library exceeded that, but I shouldn?t have that problem at my number of tracks. I even tried to download the library to a different Mac user: pretty ugly, I just got one error message after another. Naturally, we (Apple support and I) have tried all the entry-level solutions over the weeks, de-authorizing and re-authorizing, signing in and out of Apple ID, turning Genius on or off (I never use it and so the default would be "off"). However, about a month ago the icloud music library simply stopped updating on my iMac - whenever I tick the "icloud music library" box in Preferences/General, I get the same old result: the activity window shows the usual steps, "Gathering information, etc" followed by "Waiting for Apple to deliver your icloud music library", but then (after at least an hour or two) I get "Genius results cannot be updated right now, an error occurred (4001)".
I also have about 21k Apple Music tracks, all carefully tagged and metadata-ed just the way I like them, which, for classical music, is a chore. I have about 52k tracks which I own and are on an external drive attached to my iMac (frequent backups to additional drive and to Backblaze).
I have had this problem at the (so I'm told) senior level of iTunes support for nearly a month now, with no solution yet forthcoming. ITunes error code 4001, - icloud music library won't update on Mac
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