ADSM-L

[ADSM-L] SAP BR Offline backup is very slow

2012-06-23 15:57:53
Subject: [ADSM-L] SAP BR Offline backup is very slow
From: Saravanan Palanisamy <evergreen.sarav AT GMAIL DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Sun, 24 Jun 2012 03:50:14 +0800
Dear Team,

I am facing very strange issue in my environment and i would desperatly
looking for some help.

We have recently applied below AIX patch on SAP servers and it cause the BR
Offline backup to pretty slow.

Vulnerability in LDAP Authentication
JRE hangs when converting Java
Multiple vulnerabilities in AIX BIND
Sudo format string vulnerability
Vulnerability in ICMP packet handling
TCP network packet denial of service

AIX: 6100-06-05-1115
TSM server : 5.5.6.1
Storage Agent Version: 5.5.6.0
TDP for R3 : 5.5.0.0
TSM BA Client : 5.5.3.4

BR Online backup running fine( both LAN and LAN-Free backup)
BR Offline backup running fine only in LAN based backup but in LAN-Free
backup it's very slow.
While BR Offline backup runs, i have tested some file level backup over the
storage agent and backup throughput was really good.( Transfered 22 GB of
data and it took only 4 min)

We have applied the AIX patches on 4 servers( 3 SAP Oracle, 1 Oracle) and
all the four servers the BR Offline backups are running very slowly. I have
raised the PMR but they are not ready to help at this moment( due to
performance issue)

Here is the one piece transfer speed.

BKI2017I: Blocksize is set to 131072 bytes
BKI0027I: Time: 05/27/12 02:30:53 Object: 1 of 23 in process:
/oracle/DA1/sapdata6/sr3701_3/sr3701.data3 Size: 22.000 GB, MGMNT-CLASS:
WSWT-NONPROD-MCDAILY, TSM-Server: DCWTSM .
BKI0023I: Time: 05/27/12 02:35:26 Done: 22.000 GB (7.4 %) of 296.310 GB.
Estimated end time: 05/27/12 03:32:59.
BKI0053I: Time: 05/27/12 02:35:26 Object: 1 of 23 done:
/oracle/DA1/sapdata6/sr3701_3/sr3701.data3 with: 22.000 GB saved with
description DA1___A0H2P0MBFU.

Before apply the patch BR Offline backup took only *4 min 27 sec*


BKI0027I: Time: 06/24/12 03:20:26 Object: 2 of 24 in process:
/oracle/DA1/sapdata6/sr3701_4/sr3701.data4 Size: 24.414 GB, MGMNT-CLASS:
WSWT-NONPROD-MCDAILY, TSM-Server: DCWTSM .
BKI0023I: Time: 06/24/12 03:40:22 Done: 50.781 GB (16.5 %) of 307.604 GB.
Estimated end time: 06/24/12 07:40:30.
BKI0053I: Time: 06/24/12 03:40:22 Object: 2 of 24 done:
/oracle/DA1/sapdata6/sr3701_4/sr3701.data4 with: 24.414 GB saved with
description DA1___A0H3T1QJWB.

After apply the patch BR Offline backup took *20 min*



--
 Thanks & Regards,
Saravanan
Mobile: +65-86966188

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