I've heard that SATA and NVME SSDs have similar performance for use cases such as lightweight app usage and loading games. Does anyone know what the typical use cases are for these high performance drives?
WD SN850 delivers the best performing SSD we've tested
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Re: WD SN850 delivers the best performing SSD we've tested
#22Maybe I haven't been paying attention, but I've never had a site attach extra text to copied text like this site does. I wanted to see what the test machine's case looks like, so I copied the make and model and pasted it into a search bar, and got "Read more:" and a link to the page along with the text I wanted to copy. No thanks. I'll be skipping that site in the future, unless that javascript comes from a place I c…
Re: WD SN850 delivers the best performing SSD we've tested
#23> importantly, for all SSDs, disable write-cache buffer flushing for best performance. Is this actually good advice, especially without mentioning the durability risks?
The biggest players in the game do not use SSDs for persistent storage longer than x weeks. It is offloaded to tape at some point and restored periodically.
Re: WD SN850 delivers the best performing SSD we've tested
#24Those speeds look nice. 7100srMB/s and 5250 srMB/s I ended up getting a Samsung Evo 970 plus (1TB) a while ago because it was in a sale for $85. Almost half the speed of the ones in the benchmark. Maybe I should have waited.
And 1/3 the price. If you bought it because it was on sale, doesn't that mean you're at least somewhat price sensitive? I don't think you should feel bad about your purchase.
Re: WD SN850 delivers the best performing SSD we've tested
#25I've heard that SATA and NVME SSDs have similar performance for use cases such as lightweight app usage and loading games. Does anyone know what the typical use cases are for these high performance drives?
The reason is it takes time to reach those top speeds for each individual file. So if you're dealing with many small files it's difficult to reach and sustain the max speed. If you're working with big files like editing 4k or 8k video footage that's when you really get the full benefits
Re: WD SN850 delivers the best performing SSD we've tested
#26What's the endurance of these devices? Could I rely on the swap file for large cfd meshes in a pinch for a week?
Re: WD SN850 delivers the best performing SSD we've tested
#27Earlier quoted context omitted.
Dont most SSDs have capacitors for this?
Only enterprise class drives typically have power loss protection and even that isn't a guarantee as some in that class don't have PLP.
Re: WD SN850 delivers the best performing SSD we've tested
#28Earlier quoted context omitted.
The biggest players in the game do not use SSDs for persistent storage longer than x weeks. It is offloaded to tape at some point and restored periodically.
I'm also curious as to whether this is true. From what I understand and can gather from tech talks from large firms, it is common (up to and beyond petabyte scale) to use ceph clusters purely consisting of SSDs and HDDs (no tape) to store mission critical data, with cache tiering used to balance hot and cold data. AFAIK, because of their self-healing nature thanks to replication/erasure coding algorithms, all that ne…
Exactly! Use ceph so you don't have to care about burning ssd/hdd/server/switch/racks/dc, you have your object-storeage, FS, block-device, with one service and that's it.
Re: WD SN850 delivers the best performing SSD we've tested
#29> importantly, for all SSDs, disable write-cache buffer flushing for best performance. Is this actually good advice, especially without mentioning the durability risks?
StackOverflow answer here: https://superuser.com/a/1215634 It's essentially the typical "without this enabled, you will lose data in case of power loss, potentially breaking the O/S".
I bought one that should power my internet+wifi for about an hour for $45.
I guess even a small one like that would handle power blips for a home server, but in an outage the battery would quickly run out and the setting would matter.
Re: WD SN850 delivers the best performing SSD we've tested
#30> importantly, for all SSDs, disable write-cache buffer flushing for best performance. Is this actually good advice, especially without mentioning the durability risks?
StackOverflow answer here: https://superuser.com/a/1215634 It's essentially the typical "without this enabled, you will lose data in case of power loss, potentially breaking the O/S".