On the TSM-server you define the paths of system A, the storage-agent
system.
System B will then make will send the backup-data via the LAN to the
storage-agent on system A. (as specified with "LANFREETCPServeraddress")
>From system A the data will be sent over the SAN to a tapedrive.
This mechanism with a remote storage-agent is nice when you have a fast
internal/virtual network, like in the IBM's P570's. You only need 1
system with an HBA to tape while the other lpars in the system use the
internal network to sent the data to the system with the HBA.
I played with it and got a reasonable performance on a P570, when using
a virtual internal network with an high MTU size.
Jeroen
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
goc
Sent: Wednesday, December 13, 2006 2:48 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] lanfree / storage agent idea or whateva :-)
hi all, i've been thinking ...
is one storage agent enough to serve all lanfree clients we wish to back
up ?
for example:
on server A which is STA i have running dsmsta with following
configuration
root@hptdb02:/opt/tivoli/tsm/StorageAgent/bin # more dev* set staname
STA_2 set stapassword password set stahladdress sta_2.domain.hr set
stalladdress 1511 define server MAIN_TSM serverpassword=password
hladdress=main_tsm.domain..hr lladdress=1500
&
root@hptdb02:/opt/tivoli/tsm/StorageAgent/bin # more dsmsta.opt
SERVERNAME MAIN_TSM DEVCONFIG devconfig.out COMMmethod TCPIP TCPPort
1511
this server A sees the LTO drives as local drives /dev/rmt*, hard linked
as per manual
on client (server B) in dsm.sys i have
...
ENABLELANFREE yes
COMMmethod TCPip
LANFREETCPPort 1511
LANFREECOMMMETHOD TCPip
LANFREETCPServeraddress sta_2.domain.hr
TCPPort 1500
TCPServeraddress main_tsm.domain.hr
...
now my question is : when i define /dev/rmt drives i must do it on STA
server (A) which sees the drives phisicaly and hardlinked to /dev
directory exactly as seen by the MAIN_TSM server
OR
can i place dummy /dev/rmt* on client server since it's using
information from STA server which sees the drives (rmt's) for real ?
how do you manage it ? i got a feeling after some implementation that
STA must be installed and configured on every server which has BA client
ready to backup/archove on it ... (this is maybe even true)
it would be nice that 1 STA i enough and lanfree BA clients can use him
...
i think i need a vacation, i talk too much
thanks.
my new record :-)
-------------------------------------------------------
Total number of objects inspected: 253
Total number of objects backed up: 253
Total number of objects updated: 0
Total number of objects rebound: 0
Total number of objects deleted: 0
Total number of objects expired: 0
Total number of objects failed: 0
Total number of bytes transferred: 2.96 TB
LanFree data bytes: 2.96 TB
Data transfer time: 3,948.46 sec
Network data transfer rate: 805,348.31 KB/sec
Aggregate data transfer rate: 110,039.74 KB/sec
Objects compressed by: 0%
Elapsed processing time: 08:01:37
TSM 5.3.4
AIX 5.2
LTO3
bla bla ...
disclaimer.txt
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