Herr_Merlin
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Did someone said SLOG?
- Thread starter Herr_Merlin
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A couple ZeusRAMs, a pair trio of RMS-200s, and even some legacy ZeusIOPS in the background. Nice flex. ;)
I'd really like to see a new generation of NVRAM devices show up. 12G SAS drives like the Ultrastar SS530 have proven that you can still drive tons of low-latency IOPS through the SAS protocol given a sufficiently fast controller, so strapping one of them to a bank of battery-backed DDR4 would be nice to give the ability to have easy hotswap SLOG devices without worrying about end-to-end NVMe.
I'd really like to see a new generation of NVRAM devices show up. 12G SAS drives like the Ultrastar SS530 have proven that you can still drive tons of low-latency IOPS through the SAS protocol given a sufficiently fast controller, so strapping one of them to a bank of battery-backed DDR4 would be nice to give the ability to have easy hotswap SLOG devices without worrying about end-to-end NVMe.
Herr_Merlin
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Those are 4 RMS-200 :) 4x ZeusRAM and 2x ZeusIOPS
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Herr_Merlin
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I should have taken a picture prior to installing some of those..
Total numbers would be:
4xRMS-200/8G
8xZeusRAM 8G
9xZeusIOPS 800GB
And yes some SAS 12G devices would be lovely
Total numbers would be:
4xRMS-200/8G
8xZeusRAM 8G
9xZeusIOPS 800GB
And yes some SAS 12G devices would be lovely
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Random thought; I don't know that we actually have numbers for a ZeusRAM in the SLOG benchmark thread (https://www.truenas.com/community/threads/slog-benchmarking-and-finding-the-best-slog.63521/) - a few RMS-200s but no actual SAS ZeusRAMs.
If you have one that's available and unused, would you be able to blast it with the
If you have one that's available and unused, would you be able to blast it with the
diskinfo -wS /dev/XXX command and post up some results in there? Would be nice to have formal digits.
Herr_Merlin
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Can do later.
Just installed them in a system.
Just installed them in a system.
Herr_Merlin
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SLOG benchmarking and finding the best SLOG
Somebody was asking some time ago how the Optane P4801X 200G will change its performance when the sector size will be changed from the default 512 to 4096. I was looking for an answer myself and I was finally able to find out. Below is the result of my comparison. The difference is...
www.truenas.com
still have some dual port SAS cabling issues for the ZeusRAM system. will need to fix that first.
Posted the results of the others already
Herr_Merlin
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And benchmarked the rest:
www.truenas.com
SLOG benchmarking and finding the best SLOG
Somebody was asking some time ago how the Optane P4801X 200G will change its performance when the sector size will be changed from the default 512 to 4096. I was looking for an answer myself and I was finally able to find out. Below is the result of my comparison. The difference is...
www.truenas.com
