Samsung crams 30TB of SSD into a single 2.5-inch drive

Re:Samsung crams 30TB of SSD into a single 2.5-inch drive by jagger27 on Tuesday February 20, 2018 @03:14PM (#16423762)

40GB seems like a lot of cached writes to lose in a power loss.

Assuming best-case write speeds of ~1,700MB/s, you'd need almost 30 seconds of power. Could an on-board capacitor satisfy that or is a RAID-style battery necessary?

Though I suppose Samsung expects these drives to be put behind a RAID controller (SCSI 12-Gbit, not PCIe), likely with battery backup.

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Re:Samsung crams 30TB of SSD into a single 2.5-inch drive by wtallis on Tuesday February 20, 2018 @03:56PM (#16424126)

Intel's 8TB drive takes about 5 seconds to shutdown and flush its caches, so your estimates are definitely in the right ballpark. I'm not sure how many more capacitors can be squeezed into a 2.5" drive. I'll be cracking open that 8TB drive once I'm done testing it—but carefully, and after making sure it has had plenty of time to discharge.

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Re:Samsung crams 30TB of SSD into a single 2.5-inch drive by kevin_thibedeau on Tuesday February 20, 2018 @05:20PM (#16424800)

A small LiPO cell would suffice.

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