Re: [CentOS] Correlate i/o with a process

2007-08-19 Thread Feizhou
Mag Gam wrote: Hello: I have a server with 2 HBAs, and the users keeps complaining about performance problems. My question is, how can I relate the process with high I/O wait? Also, is it possible to see how much data is being pushed thru by my 2 HBAs? atop

Re: [CentOS] Correlate i/o with a process

2007-08-19 Thread Mag Gam
Very nice...thanks! On 8/19/07, Feizhou [EMAIL PROTECTED] wrote: Mag Gam wrote: Hello: I have a server with 2 HBAs, and the users keeps complaining about performance problems. My question is, how can I relate the process with high I/O wait? Also, is it possible to see how much data

Re: [CentOS] Correlate i/o with a process

2007-08-18 Thread William L. Maltby
On Fri, 2007-08-17 at 20:29 -0400, Mag Gam wrote: Thanks John. Yes, this is a tricky question, but I face this a lotUnfortunately, I am not sure how to check the adapter throughput, and what process is causing the i/o wait. On 8/17/07, John R Pierce [EMAIL PROTECTED] wrote:

Re: [CentOS] Correlate i/o with a process

2007-08-18 Thread Dag Wieers
On Fri, 17 Aug 2007, John R Pierce wrote: Mag Gam wrote: Hello: I have a server with 2 HBAs, and the users keeps complaining about performance problems. My question is, how can I relate the process with high I/O wait? Also, is it possible to see how much data is being pushed thru by

[CentOS] Correlate i/o with a process

2007-08-17 Thread Mag Gam
Hello: I have a server with 2 HBAs, and the users keeps complaining about performance problems. My question is, how can I relate the process with high I/O wait? Also, is it possible to see how much data is being pushed thru by my 2 HBAs? TIA! ___

Re: [CentOS] Correlate i/o with a process

2007-08-17 Thread John R Pierce
Mag Gam wrote: Hello: I have a server with 2 HBAs, and the users keeps complaining about performance problems. My question is, how can I relate the process with high I/O wait? Also, is it possible to see how much data is being pushed thru by my 2 HBAs? iostat (part of the sysstat package)

Re: [CentOS] Correlate i/o with a process

2007-08-17 Thread Mag Gam
Thanks John. Yes, this is a tricky question, but I face this a lotUnfortunately, I am not sure how to check the adapter throughput, and what process is causing the i/o wait. On 8/17/07, John R Pierce [EMAIL PROTECTED] wrote: Mag Gam wrote: Hello: I have a server with 2 HBAs, and the