Questions tagged [zfs-arc]
5 questions
3
votes
0 answers
What is about dnode size and limits
I've copied a reddit post which asks my question and haven't been answered:
Greetings,
I've been tinkering with a tool to monitor ZFS usage and statistics for the last few weeks. It's encouraged me to learn a lot more about ZFS as I figure out what…
buduboti
- 55
- 1
- 1
- 4
3
votes
1 answer
ZFS ARC memory tuning
Recently we are trying to tune ZFS on a machine which runs on 256RAM memory.
Our current ZFS memory variables for the ARC are max 255Gb and min 64Mb.
A main issue that we face is that during high peak times getting workflows aborded with not…
igiannak
- 740
- 1
- 5
- 23
2
votes
0 answers
Warm up ZFS cache - force file into l2arc
Currently I use:
while true; do
cat file >/dev/null
echo 3 | sudo tee /proc/sys/vm/drop_caches
done
to warm up ZFS's l2arc. When I can see accesses are primarily coming from the cache disk, it is done.
But I feel pretty silly doing that.
Is…
Ole Tange
- 33,591
- 31
- 102
- 198
2
votes
1 answer
How to keep linux pagecache minimal?
I want to setup Debian system with ZFS as primary filesystem and some as secondary (ntfs, ext2/4). When I'll read/write from non-ZFS filesystems pagecache will grow and will force zfs arc to shrink. I don't want this behavior. How to keep linux…
Daniil
- 21
- 3
0
votes
0 answers
The two SSDs have the same name by-id
There is a single-disk ZFS pool. Now I want to add another ssd to the pool and create a mirror.
zpool
pool: datapool
state: ONLINE
scan: scrub repaired 0B in 00:00:03 with 0 errors on Sun Feb 13 00:24:04 2022
config:
NAME …
gusto
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