San Client backup failling with 83

Hi Friends,

I got below error from nbftsrvr log on FT media server .

09/02/2014 22:13:07.206 [Debug] NB 51216 nbftsrvr 199 PID:2564 TID:139838317016832 File ID:199 [No context] 1 [SOS_MemAllocPool] SC PAL DMA-able Scatter/Gather Region Vector Pool exhausted all 161 entries used.

If the FT media server is Linux, the  number of FT pipes * number of data buffers should not exceed 161 for NetBackup 6.5.5 and prior, and should not exceed 322 for 6.5.6 and above. but i am using NBU 7.5.0.5 however it's exhausting on 161 , Cause

 it would show up the value as 161 but not 322 as there are  two SGRVpool buffers

because Linux doesn't have room to allocate 322 SGRV buffers contiguously from the kernel non-paged pool.  161 are allocated for odd numbered pipes in SGRVpool[0] and another 161 are allocated for even numbered pipes in SGRVpool[1].

NUMBER_DATA_BUFFERS_FT can be used for overriding NUMBER_DATA_BUFFERS for SAN Client jobs. For a Fibre Transport media server, the recommendation is not to exceed 16.

So, it is anyways recommended to not use the value more than 16 which is 32 in our case

http://www.symantec.com/business/support/index?page=content&id=TECH62007

I reduce the No of data buffer from 32 to 16 now it is working fine .

Dear Riaan,

You were near around in your first post, thanks for your all help .