Questions tagged [zfs-l2arc]
22 questions
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1 answer
ZFS on Linux and KVM: NUMA nodes for host
I am interested in using KVM images on zvols under ZFS on Linux, on a multi-socket system. I am wondering how I should pin NUMA nodes so as to maximize the benefits of ZFS ARC cache for all KVM images on the system. Obviously, I should pin each VM…
Stonecraft
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freenas zfs read performance sucks .. why?
I just set up a freenas zfs raid-z2 with 4 drives sata enterprise drives and doing some performance tests. Right now I'm pushing and pulling linux images into the storage. My notebook has a samsung 840pro ssd with 400MB/s local read write speed.…
Manuel
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Using SATA III SSDs for ZFS pools
I'm thinking of building a ZFS server optimized for random access (PostgreSQL database). I figured that I have 2 options:
Use pools consisting of the Crucial M500 960 GB SATA III SSDs. Enterprise SAS SSDs are not price-effective, considering that…
elleciel
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How to fetch current l2arc_max_write setting on Illumos?
I am trying to tweak my ZFS pool, but in order to do this I would like
to know the current l2arc_max_write setting. I know the default is 8 MB/s,
but I can't find the actual value.
I have tried to look it up in the mdb (zfs_params and arc), but…
Jeroen
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Where is my free memory? (Solaris 10)
I have a default Solaris 10 installation running on a 64GB box. For some reason, not all of the memory is available for use. The reason I'm even bothered by it, is because I'm trying to get mysql to run there, and give it 58GB of RAM, or more, but…
shlomoid
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2 answers
Cannot re-add cache device to zpool
I have a cache device that fell out of the zfs array because of errors. Im pretty sure it was something i did - messing with cabling or something. It checks out fine, plus its just a cache device. When i try to readd it, it fails with the…
Devnull
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AMD Optane alternative
I want to have an Optane features with my Ryzen build: high TBW and high I/O. Disk space irrelevant (like MEMPEK1W064GA, 64GB would be enough for me). And it would be nice if I can utilize the full power of my free PCIe 4.0 lane. Now I have an PCIe…
tchspprt
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