Networker

Re: [Networker] How to improve performance

2004-10-22 09:55:09
Subject: Re: [Networker] How to improve performance
From: Robert Maiello <robert.maiello AT PFIZER DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Fri, 22 Oct 2004 09:54:46 -0400
.."Try also to use the backup command "save -i" to ignore directive files."

Ah yes, the ignore directive.  It can be added with a addition of:

<< / >>
   ignore


I've tried it here and there but did anybody quantify a performance increase
using it. On a unix saveset I saw maybe a 2 to 3% improvement possibly due
to less systems calls.   Would one say this could help "tremendously" on
Windows clients?

Robert Maiello
Pioneer Data Systems


On Thu, 21 Oct 2004 05:30:55 +0200, Tarik El Mansouri <etarik AT YAHOO DOT COM> 
wrote:

>You wrote:
>
>Oct 21 04:56:59 CLIENT1 : E:\      level=full,     18 GB  01:33:37  61978 files
>Oct 21 04:56:59 CLIENT1: F:\       level=full,    246 KB  00:00:06     30 files
>Oct 21 04:56:59 CLIENT1: G:\       level=full,     10 GB  01:01:35  30313 files
>Oct 21 04:56:59 CLIENT1: H:\       level=full,     87 GB  06:51:49 205950 files
>
>Oct 21 04:46:03 CLIENT2: C:\       level=full,   1180 MB  00:08:26  12540 files
>Oct 21 04:46:03 CLIENT2: D:\       level=full,    225 GB  06:42:09 383748 files
>
>What can of disk storage do you have ? DAS/JBOD/Array.
>
>Are those clients defined in the same group ?  if yes, change the priority
of the client2 to start first.
>Change the target sessions to make sure you don't have several save sets on
the same drive, as you have enough drive to do it.
>
>
>Try also to use the backup command "save -i" to ignore directive files
scans in your subdirectories during the backup. If there's a lot of
directories it canhelp. You are still use the server "NSR directive" if
required.
>
>Check the fragmentation of your drive, defragment it if necessary. The
defragmentation can reduce dramatically your backup.
>
>Good luck.
>
>
>Rahul Parasnis <rahulparasnis AT MSN DOT COM> wrote:
>We have allocated 6 Drives with 3 as taget sessions for Each Drive . Infact
>One Drive letter has 260 GB Data so one session is requierd .
>
>Brocade Switch Model = BROCADE SilkWorm3900 32port 2Gbit FC Switch
>
>In fact Backup Exec was having DLT8000 drives and SAN environment brocade
>Switch , with Lp950 Cards on Direct Storage Nodes . We just replaced these
>cards to Lp10000 when we installed networker .
>
>Nothing was changed from Server point of view .
>
>>From: Tarik El Mansouri
>>Reply-To: Legato NetWorker discussion ,
>> Tarik El Mansouri
>>To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
>>Subject: Re: [Networker] How to improve performance
>>Date: Thu, 21 Oct 2004 04:17:09 +0200
>>
>>Hello Rahul,
>>
>>As I understand you share the 6 LTO2 drives between the Solairs Backup
>>server and two windows servers.
>>
>>- How many drives do you have per FC HBA (related to your zoning)?
>
>>- Which Brocade switch model do you have ?
>>
>>You must have a maximum of 3 drives per FC HBA, if you SAN is 2GB
>>end-to-end (HBA and switch). If the switch or the HBA is 1GB, then you can
>>only have one drive per HBA.
>>
>>You compare Backup Exec to Networker backup times, was it on the same
>>infrastructure ?
>>
>>Regards.
>>
>>Rahul Parasnis wrote:
>>As I have mention in my Earlier mail ,
>>
>>I am using SAN backup with Brocade Switch , I am not using GB Network .
>>
>>Two clients in question are Direct Storage Nodes connected to SAN Switch by
>>LP10000 HBA card and L180 is also connected to Brocade switch Via Fibre .
>>
>>ALL the Six LTO-2 drives are having separate Fibre connection .
>>
>>On Server Side I have LP9000 Card on V440 Solaris 9 server also connected
>>to
>>SAN Brocade Switch via Fibre .
>>
>>Which means my Network has 2GBps Speed .
>>
>>
>> >From: Somen Chanda
>> >Reply-To: Legato NetWorker discussion ,
>> > Somen Chanda
>> >To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
>> >Subject: Re: [Networker] How to improve performance
>> >Date: Wed, 20 Oct 2004 09:19:22 -0400
>> >
>> >What kind of network do you have? Make sure to increase the number of
>> >streams on each drive. With a 100Mb network you should get upto
>> >11-12Mb/sec and with GigE network you should see a speed of at least
>> >more than 35Mb/sec on each drive and with LTO-2 you should be faster but
>> >network is the most important factor.
>> >
>> >Somen
>> >
>> >-----Original Message-----
>> >From: Rahul Parasnis [mailto:rahulparasnis AT MSN DOT COM]
>> >Sent: Tuesday, October 19, 2004 11:20 PM
>> >To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
>> >Subject: [Networker] How to improve performance
>> >
>> >Hello ,
>> >I have recently installd new Networker Server on Solaris 9 with L180 of
>> >8
>> >Drives .
>> >Enviromment .
>> >
>> >Server Solaris 9 , V440 2 CPU 4 GB
>> >Brocade Switch .
>> >L180 and Lto-2 drives
>> >Lp9000 HBA card on Solaris
>> >LP10000 card on Windows 2000 and windows 2003 cluster DSN's .
>> >
>> >I am backing the two DSN on this networker Server , these two were
>> >backed up
>> >before by Veritas backup exec and time was 3 hours and 5 respectiveyl
>> >for
>> >80 GB and 260 GB data size .
>> >
>> >
>> >Now it takes 7 hours .
>> >
>> >I need help in making this backup faster . backup speed sometinmes goes
>> >as
>> >slow as 300kb/s and sometimes it goes to 45 MB/s (!)
>> >
>> >
>> >Following is just an idea for you to understand characteristics of
>> >client .
>> >Oct 17 23:49:03 [ID 702911 daemon.notice] Start time: Sun Oct 17
>> >16:30:30
>> >2004
>> >Oct 17 23:49:03 [ID 702911 daemon.notice] End time: Sun Oct 17
>> >23:49:03
>> >2004
>> >
>> >Oct 17 23:49:03 [ID 702911 daemon.notice] CLIENT1: C:\
>> >level=full, 1180 MB 00:07:59 12520 files
>> >Oct 17 23:49:03 tksubkp1 root: [ID 702911 daemon.notice] CLIENT1D:\
>> > level=full, 286 GB 07:14:14 491029 files
>> >
>> >Oct 17 23:49:03 tksubkp1 root: [ID 702911 daemon.notice] Start time:
>> >Sun
>> >Oct 17 16:30:30 2004
>> >Oct 17 23:49:03 tksubkp1 root: [ID 702911 daemon.notice] End time:
>> >Sun
>> >Oct 17 23:49:03 2004
>> >
>> >
>> >Oct 17 23:49:03 [ID 702911 daemon.notice] CLIENT2 : C:\
>> >level=full, 1180 MB 00:07:59 12520 files
>> >Oct 17 23:49:03 ID 702911 daemon.notice] CLIENT2 : D:\
>> >level=full, 286 GB 07:14:14 491029 files
>> >
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Note: To sign off this list, send a "signoff networker" command via email
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