I am rolling out new servers/libaries.

Sun V240 with 8GB of ram, ADIC Scalar 100's with 4 LTO-2 drives.  Drives are 
SCSI attached with 2 320MB Dual port Sun SCSI cards.  (one port to each drive, 
drive 0 daisy chained with the arm).

NUMBER_DATA_BUFFERS  set at 200
SIZE_DATA_BUFFERS set at 524288

NET_BUFFER_SZ is set at 524288 same as data buffers.

Connected to 100MB ports running full duplex.

According to the bptm logs, I am getting much more than 32MB/sec.  I don't know 
if I can trust the bptm logs, but I am getting as high as 75MB/sec.  That has 
to be compression kicking in, because the drives are rated to sustain 30MB/sec.

I get my throughput straight from the bptm logs.  If anyone knows a more 
accurate place to get through put (besides buy arptare), then please let me 
know.



From: "Eduardo Camareno" <eduardo AT quantumbe DOT com>
Date: 2005/06/22 Wed AM 11:47:41 EDT
To: Netbackup User_Group <Veritas-bu AT mailman.eng.auburn DOT edu>
Subject: [Veritas-bu] NBU 5.0 LTO's Gen 2

Hello group:
I will like to find out if the 32MB/sec throughput is 
reachable?.Currently I can achieve 20-25Mb/sec, but the average fall 
down to the 16MB/sec. The backup's jobs I'm using for testing is one 
660GB Filesystem with multiple data streams(6) that reside in the backup 
server. This jobs, is not going through the network.

My configuration is as follows:
Server Sun 440 with three dual jni FC HBA cards connect directly to the 
library.
Library Sun L500 with six LTO's gen 2
NBU 5.0 with their corresponding patches.
Solaris 9.0 with their latest patches.
The variables for tunning base on the the logs from bptm are:
NUMBERS_DATA_BUFFERS=256
SIZE_DATA_BUFFERS=26144

Any idea or comment will be appreciate.
Thanks;
-Eduardo

Copy of the /etc/system
set shmsys:shminfo_shmmax=4294967295
set shmsys:shminfo_shmmin=1
set shmsys:shminfo_shmmni=4096
set shmsys:shminfo_shmseg=100
set semsys:seminfo_semmni=4096
set semsys:seminfo_semmap=2097152
set semsys:seminfo_semmsl=512
set semsys:seminfo_semmns=2097152
set semsys:seminfo_semopm=512
set semsys:seminfo_semvmx=32767
*oracle semaphores end added by yadeira 06162005
*
* Parameter for NBU 5.0 Performance Add by E.Camareno, Jr QBE 06212005
*
* Message Queues & Semaphores
set msgsys:msginfo_msgmap=512
set msgsys:msginfo_msgmax=8192
set msgsys:msginfo_msgmnb=65536
set msgsys:msginfo_msgmni=256
set msgsys:msginfo_msgssz=16
set msgsys:msginfo_msgtql=512
set msgsys:msginfo_msgseg=8192

_______________________________________________
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu


Bobby Williams
2205 Peterson Drive
Chattanooga, TN  37421