cuvy
Dabbler
- Joined
- Jun 12, 2015
- Messages
- 40
Hi there,
I'm experiencing very odd issues with one of our FreeNAS instance. First, the hardware:
The HDD are connected using 2x 4U Supermicro Chassis and the server itself is a 2U Supermicro server. Both chassis are connected to the server using a SAS cable.
My problem is, the FreeNAS gui is slow. It takes a while to respond, after I login it, it feels slow to load the page. If it was just that, I wouldn't care. Now I've been doing some cleaning and I'm deleting about 10TB of data and while it is deleting, the server just gets unresponsive. We just can't access the server and the delete command starts fast then slows down very quickly, almost to a halt. A CTRL+C to cancel the delete takes minutes to stop. It just seems that it is hanging somewhere.
The server logs are reporting no problem, I'm doing regular scrubs (twice a month) I have SMART checks for all HDD 4 times a month. Last time I resilvered a volume it was very fast, it took 24 hrs for 120TB where another server we have took 3 days for a 140TB.
While I was deleting the 10TB data, the CPU is almost 100% idle, there is a lot of memory available. I also monitored the zpool IO using zpool iostat -v 3 and the max operations read+write was less than 100 per HDD and the bandwidth read+write never exceeded 2MB per HDD.
When it gets VERY slow, the operation and bandwidth IO of the pool is almost idle.
I'm looking for tips and tricks in order to debug this issue.
Any help will be very appreciated.
Thanks!
I'm experiencing very odd issues with one of our FreeNAS instance. First, the hardware:
Code:
Machine class: amd64 System architecture: amd64 Machine model: Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz Number of active CPUs: 8 Number of CPUs online: 8 Current CPU frequency: 3.52 Ghz Physical Memory: 31.94 GiB
- HBA - 2x SAS2008 PCI-Express Fusion-MPT SAS-2 [Falcon]
- Network: Intel I350 Gigabit Network Connection
- Motherboard: Supermicro X9SRE/X9SRE-3F/X9SRi/X9SRi-3F
- HDD: 96x -- 2.5TB, 3TB, 4TB Seagate and WD
The HDD are connected using 2x 4U Supermicro Chassis and the server itself is a 2U Supermicro server. Both chassis are connected to the server using a SAS cable.
My problem is, the FreeNAS gui is slow. It takes a while to respond, after I login it, it feels slow to load the page. If it was just that, I wouldn't care. Now I've been doing some cleaning and I'm deleting about 10TB of data and while it is deleting, the server just gets unresponsive. We just can't access the server and the delete command starts fast then slows down very quickly, almost to a halt. A CTRL+C to cancel the delete takes minutes to stop. It just seems that it is hanging somewhere.
The server logs are reporting no problem, I'm doing regular scrubs (twice a month) I have SMART checks for all HDD 4 times a month. Last time I resilvered a volume it was very fast, it took 24 hrs for 120TB where another server we have took 3 days for a 140TB.
While I was deleting the 10TB data, the CPU is almost 100% idle, there is a lot of memory available. I also monitored the zpool IO using zpool iostat -v 3 and the max operations read+write was less than 100 per HDD and the bandwidth read+write never exceeded 2MB per HDD.
When it gets VERY slow, the operation and bandwidth IO of the pool is almost idle.
I'm looking for tips and tricks in order to debug this issue.
Any help will be very appreciated.
Thanks!
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