15TB HDDs: Western Digital Unveils the Ultrastar DC HC620

Re:15TB HDDs: Western Digital Unveils the Ultrastar DC HC620 by nine_k on Tuesday October 30, 2018 @12:19PM (#18338254)

RAID6 should be fine rebuilding online (in RAID5 mode) even under a moderate write load.

Of course one should source RAID disks form 3 different vendors, to ensure that they are from different batches, and are not going to fail at approximately the same time.

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Re:15TB HDDs: Western Digital Unveils the Ultrastar DC HC620 by stephengillie on Tuesday October 30, 2018 @12:48PM (#18338638)

Do other manufacturers produce this size of drive? It's difficult to source from 3 vendors if there's only one making the product.

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Re:15TB HDDs: Western Digital Unveils the Ultrastar DC HC620 by thfuran on Tuesday October 30, 2018 @01:19PM (#18338997)

Get one from amazon, one from newegg, one from the manufacturer directly or some such.

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Re:15TB HDDs: Western Digital Unveils the Ultrastar DC HC620 by lostapathy on Tuesday October 30, 2018 @08:26PM (#18342427)

I try to buy hot spare or the last drive in a raid6 later than the rest of the array to try to spread them out too.

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Re:15TB HDDs: Western Digital Unveils the Ultrastar DC HC620 by tracker1 on Tuesday October 30, 2018 @06:23PM (#18341775)

Good advice, though I once had about half a dozen drives (12 drive RAID Z2 with 2 as hot spares) fail within a few weeks of each other in separate batches from sourcing. (Seagate 3TB drives, I think there's been articles on how bad that series was).

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Re:15TB HDDs: Western Digital Unveils the Ultrastar DC HC620 by tfigment on Tuesday October 30, 2018 @09:48PM (#18342752)

I don't know how i survived those Seagates. Lasted maybe a year and started dropping like flies. Synology seems to recommend identical drives as i recall but work fine with different sizes and makers afaict.

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