Recent content by batijuank

How ?

This ZFS layout was the result of Proxmox installation. I don't remember an option in Proxmox installation to do what you are telling me, could you please elaborate more on your suggestion ?

This is ST2000DM008 (I'm using 4 of them in a RAID10 configuration) datasheet and product manual I'm using this HDD because datasheet said this HDD have 4096 bytes per sector and 220MB/s Max. Sustained Transfer Rate OD. Motherboard is an ASUS P6T CPU is Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz 6...

Will do, what exactly should I look for ?

@LnxBil thanks for helping out, here is the output # zpool list NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT rpool 3,62T 1,73T 1,90T - 16% 47% 1.00x ONLINE - # zpool status -v pool: rpool state: ONLINE scan: scrub repaired 0B in...

When you use SMB, NFS, or any other network/protocol, your cache memory free -hw starts to grow up, at some point is going to compete with ARC cache, which will eventually cause your a drop. You can fix this with ... # Insert this line in /etc/modprobe.d/zfs.conf options zfs...

So what might be causing a low peformance issue? Wherever I made a big copy (50 GB or more) the copy speed drops suddenly, and after a while it goes back again, this repeats over and over. And also some of my KVM servers start to have low peformance too. Could you help me ?

Are you making backups remotely (Using NFS, SMB, etc)

# fdisk -l Disk /dev/sda: 1,8 TiB, 2000398934016 bytes, 3907029168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: 6CE03003-5475-4CFC-8ED1-8DBC1DEBB92E...

According to that link: I'm seeing here: That my partitions are not aligned to a 4K boundary. Before this setup, I used to have 4 Seagate ST1000DM003 on ZFS with ashift=9, and I had better peformance (Less I/O delay percent). Am I missing something here?

Thanks for helping Then why this Units: sectors of 1 * 512 = 512 byte line is telling that each sector has a size of 512 bytes? What does that means ?

I bought 4 Seagate Barracuda ST2000DM008 (Bytes per sector: 4096 according to datasheet) to be used in a Proxmox 5.4 with ZFS, during installation I choosed ashift=12, however after installation, I decided to check the bytes per sector using: fdisk -l /dev/sd[abcd] This gives me: Disk /dev/sda...

Thanks for helping out, @Dominic .How about this one: pvesh get /nodes/asgard/qemu/1080/agent/file-read --file /path/to/file I'm getting the following error: Agent error: The command guest-file-open has been disabled for this instance I'm logged as root

I want to execute several commands to each one of my nodes, looking at Proxmox API is possible to send commands to a node using: pvesh create /nodes/{node}/execute --commands '["apt update", "apt upgrade pkg1, pkg2, pkg3"]' However I can't seem to find a proper way to create the JSON. Can...

@dietmar and @wbumiller thanks for the answer, one last thing, does Proxmox has a proven hardware list of some kind for servers?