GeorgePatches
Dabbler
- Joined
- Dec 10, 2019
- Messages
- 39
Hello all,
I've been a long time novice user of FreeNAS and I need some help running an issue I'm seeing to ground.
Setup:
FreeNAS 11.2U7
i7-3770K
32GB of RAM at DDR3-800 non-ECC
6x2TB 7200 RPM consumer grade HDDs
all drives connected through motherboard SATA ports, no hardware RAID or anything
Pool of 3 RAID1 VDEVs
HP 4x1Gb ethernet card
2TB thin provisioned zvol for iSCSI
Home network use, hosting my steam games on here.
iSCSI share being accessed by one computer, my gaming desktop (Win10), everything else only uses SMB (and really nothing else is pulling data on the regular).
Issue:
I'm seeing weird, bursty write performance out of my iSCSI share. I get writes at full 1Gb speeds and then it just flat lines to 0 for a while and then picks up again after a minute or so. This cycle repeats for the whole length of whatever writes I'm doing. SMB writes do not seem to have this issue. Reads for iSCSI and SMB do not have any issues.
Troubleshooting I've tried:
I've upgraded the hardware. The box used to be based on an old LGA 775 dual core server board with 8GB of RAM. I upgraded it to an old i7-920 with 12GB of RAM first, got the same behavior. Then upgraded to the board and CPU above and still got the same behavior. I also switched from onboard LAN to an old server grade NIC based on Intel hardware, still got the same behavior.
I've reached my limit of troubleshooting expertise, I need some help. I searched the forums and couldn't seem to find anyone else having bursty behavior. If anyone can give me some direction on what to do next or other data points I need to gather, I'd greatly appreciate the help.
Extra:
Why don't I just run SMB if that works fine? Lots of games and game launchers just refuse to work on network shares for reasons that I don't understand. iSCSI mapped drive doesn't have that problem.
I've been a long time novice user of FreeNAS and I need some help running an issue I'm seeing to ground.
Setup:
FreeNAS 11.2U7
i7-3770K
32GB of RAM at DDR3-800 non-ECC
6x2TB 7200 RPM consumer grade HDDs
all drives connected through motherboard SATA ports, no hardware RAID or anything
Pool of 3 RAID1 VDEVs
HP 4x1Gb ethernet card
2TB thin provisioned zvol for iSCSI
Home network use, hosting my steam games on here.
iSCSI share being accessed by one computer, my gaming desktop (Win10), everything else only uses SMB (and really nothing else is pulling data on the regular).
Issue:
I'm seeing weird, bursty write performance out of my iSCSI share. I get writes at full 1Gb speeds and then it just flat lines to 0 for a while and then picks up again after a minute or so. This cycle repeats for the whole length of whatever writes I'm doing. SMB writes do not seem to have this issue. Reads for iSCSI and SMB do not have any issues.
Troubleshooting I've tried:
I've upgraded the hardware. The box used to be based on an old LGA 775 dual core server board with 8GB of RAM. I upgraded it to an old i7-920 with 12GB of RAM first, got the same behavior. Then upgraded to the board and CPU above and still got the same behavior. I also switched from onboard LAN to an old server grade NIC based on Intel hardware, still got the same behavior.
I've reached my limit of troubleshooting expertise, I need some help. I searched the forums and couldn't seem to find anyone else having bursty behavior. If anyone can give me some direction on what to do next or other data points I need to gather, I'd greatly appreciate the help.
Extra:
Why don't I just run SMB if that works fine? Lots of games and game launchers just refuse to work on network shares for reasons that I don't understand. iSCSI mapped drive doesn't have that problem.