All, have a question about speed.
We are running the master server on a Windows C class HP blade with a dual core
2.4 GHz Atholon CPU and 8 GBs memory. Has two FC ports connected to:
2 Two HP StorageWorks Enterprise Class ESL712 Tape Libraries
712 - Tape slots each library
12 - LTO3 Tape drives total
Backups are not that fast and I am questioning why. This is just a fast POC
test but I would like to tune and give the customer more valid numbers.
Any ideas would be great. My thoughts are that we don't have enough CPU's to
push the tape libraries but why such a vast difference betwen windows and
solaris backups? I am just puzzled. Help please.
Here are the values in the following files:
C:\Program Files\Veritas\Netbackup\db\config\NUMBER_DATA_BUFFERS
132
C:\Program Files\Veritas\Netbackup\db\config\NUMBER_DATA_BUFFERS_DISK
32
C:\Program Files\Veritas\Netbackup\db\config\NUMBER_DATA_BUFFERS_RESTORE
64
C:\Program Files\Veritas\Netbackup\db\config\SIZE_DATA_BUFFER
262144
C:\Program Files\Veritas\Netbackup\NET_BUFFER_SZ
1049600
C:\Program Files\Veritas\Netbackup\NET_BUFFER_SZ_REST
525312
For Network Windows servers clients, we average just under 7 MB/sec
Same server configuration for Solaris 33 MB/sec
>>From bptm log:
15:08:25.456 [3492.6020] <2> io_set_sendbuf: setting send network buffer to
525312 bytes
15:08:25.456 [3492.6020] <2> io_init: using 128 data buffers
15:08:25.456 [3492.6020] <2> io_init: buffer size for read is 262144
15:08:25.456 [3492.6020] <2> io_init: child delay = 20, parent delay = 30
(milliseconds)
15:08:25.456 [3492.6020] <2> create_shared_memory: shm_size = 33557564, buffer
address = 0x1170000, buf control = 0x3170000, ready ptr = 0x3170c00, res_cntl =
0x3170c04
15:08:25.456 [3492.6020] <2> setup_bpbkar_info: Global\NetBackup Media Manager
SHM Info Path app429d_1186419216 file successfully created
15:08:25.456 [3492.6020] <2> nbjm_media_request: Passing job control to NBJM,
type READ
.......
15:17:12.749 [3664.1404] <2> bptm: EXITING with status 0 <----------
15:18:25.355 [2720.5456] <2> write_data: writing block shorter than BUFF_SIZE,
218112 bytes
15:18:25.355 [2720.5456] <2> write_data: writing short block, 218112 bytes,
remainder 0
15:18:25.355 [2720.5456] <2> write_data: waited for full buffer 63961 times,
delayed 80764 times
15:18:25.355 [2720.5456] <2> write_backup: write_data() returned, exit_status =
0, CINDEX = 0, TWIN_INDEX = 0, backup_status = 0
15:18:25.355 [2720.5456] <2> io_terminate_tape: writing empty backup header,
drive index 0, copy 1
15:18:25.355 [2720.5456] <2> io_ioctl: command (0)MTWEOF 1 from
(bptm.c.8229) on drive index 0
15:18:31.933 [2720.5456] <2> io_terminate_tape: absolute block position prior
to writing empty header is 241703, copy 1
15:18:31.933 [2720.5456] <2> io_write_back_header: drive index 0, empty_file,
file num = 2, mpx_headers = 0, copy 1
15:18:31.933 [2720.5456] <2> io_close: closing C:\Program
Files\VERITAS\NetBackup\db\media\tpreq\drive_HP.ULTRIUM3-SCSI.000, from
bptm.c.8369
15:18:31.933 [2720.5456] <2> io_terminate_tape: block position check:
actual 241703, expected 241703
15:18:31.933 [2720.5456] <2> send_MDS_msg: MEDIADB 1 28 AK6501 4000002
*NULL* 21 1186511708 1186511708 1187721308 0 0 0 0 1 1 0 0 1024 0 241703 0
15:18:31.933 [2720.5456] <2> ParseConfigExA: Unknown configuration option on
line 56: RenameIfExists = 1
15:18:31.949 [2720.5456] <2> JobInst::sendIrmMsg: returning
15:18:31.949 [2720.5456] <2> openTpreqFile: tpreq_file: C:\Program
Files\VERITAS\NetBackup\db\media\tpreq\drive_HP.ULTRIUM3-SCSI.000,
serial_num: HU10709CR7
15:18:31.949 [2720.5456] <2> get_drive_path: SCSI coordinates {0,0,0,1},
dos_path \\.\Tape0, pnp_path
\\?\scsi#sequential&ven_hp&prod_ultrium_3-scsi&rev_l63w#5&23bbaf37&0&000001#{53f5630b-b6bf-11d0-94f2-00a0c91efb8b}
15:18:31.949 [2720.5456] <2> check_serial_num: serial number match for drive
with SCSI coordinates {0,0,0,1}, dos_path \\.\Tape0, drive serial number
HU10709CR7, expected serial number HU10709CR7 15:18:31.980 [2720.5456] <2>
init_tape: \\.\Tape0 (SCSI coordinates
{0,0,0,1}) configured with blocksize 0
15:18:31.996 [2720.5456] <2> init_tape: \\.\Tape0 (SCSI coordinates
{0,0,0,1}) has compression enabled
15:18:32.011 [2720.5456] <2> io_open: SCSI RESERVE
>>From status log of NB Master Full backup: about 22 MB/sec
8/7/2007 2:35:56 PM - positioning AK6501 to file 1
8/7/2007 2:36:06 PM - positioned AK6501; position time: 00:00:10
8/7/2007 2:36:06 PM - begin writing
8/7/2007 2:45:18 PM - Warning bpbrm(pid=3900) from client bmedia403: WRN -
Removable Storage Management: unable to export database (WIN32 21: The device
is not ready. )
+----------------------------------------------------------------------
|This was sent by tzurita AT gmail DOT com via Backup Central.
|Forward SPAM to abuse AT backupcentral DOT com.
+----------------------------------------------------------------------
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
