The only errors are TCP/IP connection failures or refusals on the client and the server. The command line admin client is also unable to connect so running a trace is tough. We have eliminated the network as causing the problem. Since TSM does not recover from the problem a restart is required.
When I do a show thread there is a line that is "Thread table size". I am assuming that is a thread limit of some sort. Do you know if this is correct? I have reduced the storage pool volume count by about 150 and TSM was able to handle more sessions before it would no longer accept connections. This makes we believe that there is some sort of limit on the number of threads that is well below the AIX 5.1 limit. This limit may be something doing with available RAM or some other cause. I do think I inadvertently found the cliff and jumped... Andy Huebner -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Richard Sims Sent: Sunday, January 08, 2006 9:04 AM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] Primary disk pool volume limit On Jan 6, 2006, at 2:41 PM, Andy Huebner wrote: > How would I determine what the per-process thread limit is? Your > suggestion of a thread limitation seems to fit the known facts. Andy - Here's some info from my AIX notes... Threads, maximum number The programming limits are defined in /usr/include/pthreads.h and /usr/include/sys/limits.h as: #ifdef _LARGE_THREADS #define PTHREAD_THREADS_MAX 32767 #else #define PTHREAD_THREADS_MAX 512 These defines prevail in AIX 4.3, 5.1, and 5.2. AIX redbook "Developing and Porting C and C++ Applications on AIX" says that 512 is a sufficient number for most multi-threaded applications, regardless of 32- or 64-bit applications. If pthread_create() goes over the limit, errno EAGAIN (11) will occur. Note that the creation of Pthreads consumes the process heap. I'm not aware of any system file configuration option which can artificially limit the number of threads per process. I verified the behavior with a programming test. There's no telling what value the AIX TSM server may have been compiled with. Again, ANR messages and AIX Error Log entries should say what the issue is. Richard Sims This e-mail (including any attachments) is confidential and may be legally privileged. If you are not an intended recipient or an authorized representative of an intended recipient, you are prohibited from using, copying or distributing the information in this e-mail or its attachments. If you have received this e-mail in error, please notify the sender immediately by return e-mail and delete all copies of this message and any attachments. Thank you.
