124: 50TB HDDs - How HAMR Makes it Happen

[@stevekristoff4365]

Interesting update on the technology, as I remember it being talked about in 2000-2002 and glad to see it finally. However as for deployment will have to see how it compares with MTTF to CMR/PMR (i.e. how many heat/cool sessions per location can be sustained before the media degrades? what is the MTTF for the laser?; What happens when read/write head get mis-aligned with the laser? (i.e. like old school wild/split writes). The other comment is from the start on moving towards pcie (nvme) as an interface type. Think that is wrong headed, we actually HAVE a *very* good scalable interface type already it's called SAS. with SAS4 you have 22.5Gb/s / lane (90 to 180Gb/s for 4x or 8x) and SAS5 being worked on for doubling that. Backward compatibility and the ability to scale to 10's of thousands of devices and multi pathing, not to mention cabling distance up to 10M. PCIe/nvme is best used only as a local fast cache it just doesn't have the capabilities of SAS in *many* areas.

[@StorageReview]

All of the reliability things will take time, but you bring up a lot of valid points. These are shipping now to hyperscale, we'll surely learn a lot about reliability pretty quickly. As to NVMe, the purpose there is to simplify system architecture. The tri-mode tech is fine, but it's not perfect and signal integrity keeps getting more complicated. Dropping SATA/SAS would also potentially reduce some cost of the server. This is quite early still, don't expent NVMe HDDs in production very soon.

[@corkhead0]

Can't wait until these start landing in the homelab! My plex server can use some more space. :)

[@StorageReview]

May be a little bit 😢

[@trass97]

Love hearing whats coming from the source!

[@StorageReview]

That for the feedback and remember, we live stream these on Discord where you can ask your own questions.

[@trass97]

@@StorageReview you still at quantum in Denver?

[@StorageReview]

@@trass97 Nope, back in Cincy, we move fast ;)

[@jmssun]

When! I’ll take a dozen

[@StorageReview]

30TB drives should be announced in the next few months. ❤

[@1DwtEaUn]

Time for a new era of bigfoot(tm) drives?

[@StorageReview]

Wow. Digging that one out of the archives! 😮😮😮

[@jaimeduncan6167]

I don't believe this makes sense anymore for single RAID arrays or Z pools. How long will it take for a device like this to be rebuilt, if it's at say 60% capacity? You are not going to sustain 250MB/s because of random IOPs. It will be closer to 50 to 75MB/s so 4 to 5 days, you are basically toasted. In a cloud provider one can create custom software to ensure performant redundancy and make the thing useful. On the other hand, one can buy 60TB U.2 SSD doing 4GB/s today for an astronomic price but 15TB are less than 3K US$ in NewEgg (not cheap, and not in volume). Franl;u it seems that the long-lasting era of the HDD is coming to an end.

[@StorageReview]

@@jaimeduncan6167 this is why with erasure coding and other systems it’s easy to specify how many points of failure you want.

[@relaxingnature2617]

Timestamp: spinning rust 4:38

[@StorageReview]

probably said that more than once, lol

[@Foysalispbroadbandmetrowifi]

Today's Android Smart Phone Micro SD Card Read Write speed 😂🤣 12.5 MB/s up to 985 MB/s only, also I like HDD is important for Backup Storage archive big data 100 TB to 1000 TB, Maybe today use this only CCTV solutions and Router, Switches it's very good idea, HDD💝 Thank you

[@kenneth.topp.]

i'd really like to see sata move to 12gbps or 24gbps, not that it will help a whole bunch with hdd, but I have a lot more sata ports then I have pcie lanes, so a bunch of my ssds are connected via sata. sas keeps moving forward, but it seems like sata is frozen in time. another sign of the death of the "PC".

[@StorageReview]

From what we've seen there's zero energy to innovate on SATA. There's just no point with NVMe being so inexpensive. No death of PC, just death of old SATA ports.

[@saultube44]

This is about Storage, not getting to know you, no wonder this is 56 mins; I'm not watching it 'coz it's a time waster

[@oleggritsev]

SSd now have 60 TB. hard drive still 30TB maximum you can buy. so probably bye bye hard drives......

[@mdd1963]

FIrst!