[OmniOS-discuss] iscsi timeouts

2014-01-21 Thread Tobias Oetiker
Hi, we are serving ISCSI volumes from our omnios box ... in the log on the client I keep seeing this pattern every few hours. any idea what could be causing this ? server and client are directly via a crossover cable over a dedicated interface. Jan 21 01:21:34 iscsi-client kernel: :

Re: [OmniOS-discuss] iscsi timeouts

2014-01-21 Thread David Bomba
It looks like your NFS is dropping also ( but then recovering ), so I wouldn't be pinning the problem solely on iscsi. The problem could be anywhere from the network driver all the way back to the switch/cables etc. You'll need to go through each item methodically to find the root cause. On

Re: [OmniOS-discuss] iscsi timeouts

2014-01-21 Thread Narayan Desai
We've seen problems like this when we have a SATA drive in a SAS expander that is going out to lunch. Are there any drives showing errors in iostat -En? or any drive timeout messages in the ring buffer? -nld On Tue, Jan 21, 2014 at 3:04 AM, Tobias Oetiker t...@oetiker.ch wrote: Hi, we are

Re: [OmniOS-discuss] iscsi timeouts

2014-01-21 Thread Dan McDonald
On Jan 21, 2014, at 7:21 AM, Narayan Desai narayan.de...@gmail.com wrote: We've seen problems like this when we have a SATA drive in a SAS expander that is going out to lunch. Are there any drives showing errors in iostat -En? or any drive timeout messages in the ring buffer? Generally

Re: [OmniOS-discuss] iscsi timeouts

2014-01-21 Thread Tobias Oetiker
Today Dan McDonald wrote: On Jan 21, 2014, at 7:21 AM, Narayan Desai narayan.de...@gmail.com wrote: We've seen problems like this when we have a SATA drive in a SAS expander that is going out to lunch. Are there any drives showing errors in iostat -En? or any drive timeout messages in

Re: [OmniOS-discuss] iscsi timeouts

2014-01-21 Thread Tim Rice
On Tue, 21 Jan 2014, Tobias Oetiker wrote: Hi, we are serving ISCSI volumes from our omnios box ... in the log on the client I keep seeing this pattern every few hours. any idea what could be causing this ? server and client are directly via a crossover cable over a dedicated

Re: [OmniOS-discuss] iscsi timeouts

2014-01-21 Thread Tobias Oetiker
Hi Tim, Today Tim Rice wrote: On Tue, 21 Jan 2014, Tobias Oetiker wrote: Hi, we are serving ISCSI volumes from our omnios box ... in the log on the client I keep seeing this pattern every few hours. any idea what could be causing this ? server and client are directly via a

Re: [OmniOS-discuss] iscsi timeouts

2014-01-21 Thread Narayan Desai
Sorry, I should have given the requisite yes, I know that this is a recipe for sadness, for I too have experienced said sadness. That said, we've seen this kind of problem when there was a device in a vdev that was dying a slow death. There wouldn't necessarily be any sign, aside from insanely

Re: [OmniOS-discuss] iscsi timeouts

2014-01-21 Thread Tobias Oetiker
Hi Nld, Today Narayan Desai wrote: Sorry, I should have given the requisite yes, I know that this is a recipe for sadness, for I too have experienced said sadness. That said, we've seen this kind of problem when there was a device in a vdev that was dying a slow death. There wouldn't

Re: [OmniOS-discuss] iscsi timeouts

2014-01-21 Thread Saso Kiselkov
On 1/21/14, 10:09 PM, Saso Kiselkov wrote: On 1/21/14, 10:01 PM, Tobias Oetiker wrote: Hi Nld, Today Narayan Desai wrote: Sorry, I should have given the requisite yes, I know that this is a recipe for sadness, for I too have experienced said sadness. That said, we've seen this kind of

Re: [OmniOS-discuss] iscsi timeouts

2014-01-21 Thread Saso Kiselkov
On 1/21/14, 10:16 PM, Saso Kiselkov wrote: On 1/21/14, 10:09 PM, Saso Kiselkov wrote: On 1/21/14, 10:01 PM, Tobias Oetiker wrote: Hi Nld, Today Narayan Desai wrote: Sorry, I should have given the requisite yes, I know that this is a recipe for sadness, for I too have experienced said

Re: [OmniOS-discuss] iscsi timeouts

2014-01-21 Thread Tobias Oetiker
Today Saso Kiselkov wrote: I guess you can check for this string at runtime: $ strings /kernel/drv/amd64/igb | grep _eee_support If it is missing, then it could be the buggy EEE support that's throwing your link out of whack here. Nevermind, missed your description of the KVM guests