Recent content by carcass

According to the feedback, that's not the first time he's done it

Yeah, but duos have regular wd reds inside, while this is white label hgst

Seems like a good deal https://www.amazon.fr/gp/product/B07W5V8GC9

nope

I've just received 7150 from ebay, and looks like it won't go past bootloader: Ruckus Wireless Bootloader: 10.1.11T225 (Dec 13 2017 - 03:13:30 -0800) Booted from partition 1 DRAM: Validate Shmoo parameters stored in flash ..... OK Any idea what is wrong and if anything can be done here...

OK, great, those are actually expected figures for your pool configuration, and apparently the issue is with the network part. I'm not a huge solaris/samba expert, but perhaps this could help? https://napp-it.org/doc/downloads/performance_smb2.pdf

So assuming that you did clear ARC between "write" and "read" you've got 660MB/s read with 256k recordsize and 1.1GB/s read with 1M recordsize?

Are you getting the same result when reading that file locally (with dd) with empty ARC?

L2ARC would have zero impact on your streaming read perfomance unless data has already been read. what is the ashift value for this pool (zdb -C <pool_name> | grep ashift)? when you reading that large file what is an actual IO size (zpool iostat -rp 1 in ZoL)? maybe you can put here all current...

Try tuning your prefetcher -- start with "echo 67108864 > /sys/module/zfs/parameters/zfetch_max_distance"

It is dated 5/23/2018, but I'm not sure if it has been there since that date. Anyways, after upgrading to 3.3 it is possible to choose bifurcation mode in bios -- but that I tried with ruexe tool without success -- and it actually works now.

"Yes" to both questions:)

Update: it works with the recent BIOS update

It doesn't work on latest BIOS -- indeed only top NVME drive is visible. bifurcation control is grayed out, and setting it manually by ruexe tool doesn't seem to work.