I have a Synology 8-bay 1817+ from 2017 with 8 - 4TB WD NAS drives setup in RAID 10 for data safety. I’ve had this connected to a UPS the entire time (swapped batteries, etc) and it gracefully shuts down if there is a power outage. Everything is reporting normal, drives SMART data looks great, device is operating well. I also have redundant offset backups of the data.

Given that most HDDs only last ~5 years on averages, should I begin replacing the WD RED NAS HDDs eve though they are operating fine? Feel like I’m on a ticking time-bomb. Has anyone had any experience upgrading/migrating a Synology from one set of drives to another?

Thanks

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  • HTWingNut@alien.topBEnglish
    1·
    11 months ago

    Up to you. If you need more capacity, start replacing disks.

    If you can manage four new disks, start over with RAID 6. this will allow you to run with fewer disks using less power, less heat, less noise. You can lose any two disks in the RAID and still keep rolling. With RAID 10, if you lose two in the same mirrored pair, everything is lost. If you want best redunancy then RAID 60 but Synology doesn’t support that, and think it’s a bit overkill imho.

    RAID 10 with 8x4TB is just 16TB of usable storage. You can get four 16TB or 18TB (or even 20TB) in RAID 6 for 32, 36, or 40TB usable storage and use half the power. And give you four more bays to add more disks as you need them.