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Patricia,
=20
We found slow restore times when restoring a bunch of small files. With =
Oracle 11i we are backing up over 600,000 small files. While the backup =
takes about 2 hours the restore time takes around 10 hours. We are =
looking at ways around this. Probably not your situation but maybe it =
will spark some ideas.
=20
dale
Dale P. Kramer
Senior Enterprise Systems Analyst
STERIS Corporation
5960 Heisley Rd.
Mentor, OH 44060
440-392-7082
Man is the only animal that blushes -- or needs to. - Mark Twain=20
-----Original Message-----
From: Patricia Harmon [mailto:pkharmon AT tecoenergy DOT com]
Sent: Monday, January 13, 2003 10:42 AM
To: joe.lamanna AT citigroup DOT com; jmcdon23 AT csc.com DOT au; =
Quarantine AT GSCCCA DOT ORG; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Long Restore times
The backup was not multiplexed or streamed.
Pat
>>> Quarantine <Quarantine AT GSCCCA DOT ORG> 01/13/03 09:33AM >>>
Was the backup multiplexed?
=20
Matt
=20
-----Original Message-----
From: Patricia Harmon [mailto:pkharmon AT tecoenergy DOT com]=20
Sent: Monday, January 13, 2003 9:25 AM
To: joe.lamanna AT citigroup DOT com; jmcdon23 AT csc.com DOT au; =
veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Long Restore times
We have Norton Anti-virus running and the disks were changed after the =
backup and before the restore from RAID5 to RAID1 and mirrored. =20
=20
=20
=20
Pat Harmon
Tampa Electric Company
(813) 225-5164 - Voice
(813) 275-3599 - Fax=20
>>> "La Manna, Joe [IT]" <joe.lamanna AT citigroup DOT com> 01/10/03 04:09PM =
>>>
Did you have any anti virus software running - this can substantially
increase your restore times as we have seen the CPU pegged on the =
client.
Joe
-----Original Message-----
From: James Mcdonald [ mailto:jmcdon23 AT csc.com DOT au]
Sent: Friday, January 10, 2003 3:55 PM
To: pkharmon AT tecoenergy DOT com; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Long Restore times
Hi
There is the impact of LAN traffic - it can be substantial.
Are the disks RAID5 and either software RAIDED (not on an external =
disk
subsystem where there is a RAID controller ) or on an old RAID =
Subsystem.
- if that the case you are encountering RAID5 "write penalty" that will
slow done restores - restore times 3x backups may be too long for the
impact of RAID5 unless the system is old.
A quick test is to ftp a large file/s from client to backup server and =
send
it back again
Regards
Jim McDonald
-------------------------------------------------------------------------=
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This email, including any attachments, is intended only for use by the
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and
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contained in this email is not to be used or disclosed for any purpose
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the
intended recipient, you must not disclose or use the information =
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Quarantine <Quarantine AT GSCCCA DOT ORG>@mailman.eng.auburn.edu on 11/01/2003
12:57:08 AM
Sent by: veritas-bu-admin AT mailman.eng.auburn DOT edu
To: "'Patricia Harmon'" <pkharmon AT tecoenergy DOT com>,
veritas-bu AT mailman.eng.auburn DOT edu
cc:
Subject: RE: [Veritas-bu] Long Restore times
Was the original backup multiplexed?
Matt
-----Original Message-----
From: Patricia Harmon [ mailto:pkharmon AT tecoenergy DOT com]
Sent: Friday, January 10, 2003 8:53 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Long Restore times
Hello,
I understood that a Netbackup restore would take about twice as long as
the backup. My experience was 3 times as long to restore. The restore =
was
the only job running on the server and client. Are there some restore
parameters, I could use to help this process or is
3 times a better ROT?
Backup time 45g in 2 hours 38592 files
Restore time 43g in 6 hours 21405 files
Environment:
Master/media
Sun E450
Solaris 5.8
(3) 400MHz processors
NBU 4.5
L700 - DLT8000 drives
Client
Windows 2000
100mb/full duplex.
Thanks for any information or experiences.
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
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<BODY style=3D"MARGIN-TOP: 2px; FONT: 10pt Arial; MARGIN-LEFT: 2px">
<DIV><SPAN class=3D383452216-13012003>Patricia,</SPAN></DIV>
<DIV><SPAN class=3D383452216-13012003></SPAN> </DIV>
<DIV><SPAN class=3D383452216-13012003>We found slow restore times when =
restoring a=20
bunch of small files. With Oracle 11i we are backing up over =
600,000 small=20
files. While the backup takes about 2 hours the restore time takes =
around=20
10 hours. We are looking at ways around this. Probably not =
your=20
situation but maybe it will spark some ideas.</SPAN></DIV>
<DIV><SPAN class=3D383452216-13012003></SPAN> </DIV>
<DIV><SPAN class=3D383452216-13012003>dale</SPAN></DIV>
<DIV><SPAN class=3D383452216-13012003>
<P><FONT size=3D2>Dale P. Kramer<BR>Senior Enterprise Systems =
Analyst<BR>STERIS=20
Corporation<BR>5960 Heisley Rd.<BR>Mentor, OH =
44060<BR>440-392-7082<BR><BR>Man=20
is the only animal that blushes -- or needs to. - Mark Twain</FONT>=20
</P></SPAN></DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT=20
face=3DTahoma>-----Original Message-----<BR><B>From:</B> Patricia =
Harmon=20
[mailto:pkharmon AT tecoenergy DOT com]<BR><B>Sent:</B> Monday, January 13, =
2003=20
10:42 AM<BR><B>To:</B> joe.lamanna AT citigroup DOT com; jmcdon23 AT csc.com
DOT au; =
Quarantine AT GSCCCA DOT ORG; =
veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B>=20
RE: [Veritas-bu] Long Restore times<BR><BR></FONT></DIV>
<DIV>The backup was not multiplexed or streamed.<BR></DIV>
<DIV>Pat<BR>>>> Quarantine <Quarantine AT GSCCCA DOT ORG> =
01/13/03=20
09:33AM >>><BR></DIV><FONT face=3DArial>
<DIV><SPAN class=3D822113314-13012003>Was the backup =
multiplexed?</SPAN></DIV>
<DIV><SPAN class=3D822113314-13012003></SPAN> </DIV>
<DIV><SPAN class=3D822113314-13012003>Matt</SPAN></DIV>
<DIV><SPAN class=3D822113314-13012003></SPAN> </DIV>
<DIV></DIV>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr =
align=3Dleft><FONT=20
face=3DTahoma>-----Original Message-----<BR><B>From:</B> Patricia =
Harmon=20
[mailto:pkharmon AT tecoenergy DOT com] <BR><B>Sent:</B> Monday, January 13, =
2003=20
9:25 AM<BR><B>To:</B> joe.lamanna AT citigroup DOT com; jmcdon23 AT csc.com
DOT au;=20
veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> RE: [Veritas-bu] =
Long=20
Restore times<BR><BR></FONT></DIV>
<DIV>We have Norton Anti-virus running and the disks were changed =
after=20
the backup and before the restore from RAID5 to RAID1 and =
mirrored. =20
</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV><BR>Pat Harmon<BR>Tampa Electric Company<BR>(813) 225-5164 -=20
Voice<BR>(813) 275-3599 - Fax <BR><BR><BR>>>> "La =
Manna, Joe=20
[IT]" <joe.lamanna AT citigroup DOT com> 01/10/03 04:09PM=20
>>><BR><BR>Did you have any anti virus software running =
- this=20
can substantially<BR>increase your restore times as we have seen the =
CPU=20
pegged on the client.<BR><BR><BR>Joe<BR><BR><BR>-----Original=20
Message-----<BR>From: James Mcdonald [<A=20
=
href=3D"mailto:jmcdon23 AT csc.com DOT au]">mailto:jmcdon23 AT csc.com DOT
au]</A><BR>S=
ent:=20
Friday, January 10, 2003 3:55 PM<BR>To: pkharmon AT tecoenergy DOT com;=20
veritas-bu AT mailman.eng.auburn DOT edu<BR>Subject: RE: [Veritas-bu] Long =
Restore=20
times<BR><BR><BR><BR>Hi<BR><BR>There is the impact of LAN traffic - it =
can be=20
substantial.<BR><BR>Are the disks RAID5 and either software =
RAIDED (not=20
on an external disk<BR>subsystem where there is a RAID =
controller ) or=20
on an old RAID Subsystem.<BR>- if that the case you are encountering =
RAID5=20
"write penalty" that will<BR>slow done restores - restore times =
3x=20
backups may be too long for the<BR>impact of RAID5 unless the =
system is=20
old.<BR><BR>A quick test is to ftp a large file/s from client to =
backup server=20
and send<BR>it back again<BR><BR>Regards<BR>Jim=20
=
McDonald<BR><BR>---------------------------------------------------------=
-------------------<BR>------------<BR><BR>This=20
email, including any attachments, is intended only for use by=20
the<BR>addressee(s) and may contain confidential and/or personal =
information=20
and<BR>may also be the subject of legal privilege. Any personal=20
information<BR>contained in this email is not to be used or disclosed =
for any=20
purpose<BR>other than the purpose for which you have received it. If =
you are=20
not the<BR>intended recipient, you must not disclose or use the =
information=20
contained<BR>in it. In this case, please let me know by return email, =
delete=20
the message<BR>permanently from your system and destroy any=20
=
copies.<BR>--------------------------------------------------------------=
--------------<BR>------------<BR><BR><BR><BR><BR><BR>Quarantine=20
<Quarantine AT GSCCCA DOT ORG>@mailman.eng.auburn.edu on =
11/01/2003<BR>12:57:08=20
AM<BR><BR>Sent by: =20
=
veritas-bu-admin AT mailman.eng.auburn DOT edu<BR><BR><BR>To:
=
"'Patricia Harmon'"=20
=
<pkharmon AT tecoenergy DOT com>,<BR>
=
veritas-bu AT mailman.eng.auburn DOT edu<BR>cc:<BR>Subject:
=
RE:=20
[Veritas-bu] Long Restore times<BR><BR><BR><BR>Was the original =
backup =20
multiplexed?<BR><BR>Matt<BR><BR>-----Original Message-----<BR>From: =
Patricia=20
Harmon [<A=20
=
href=3D"mailto:pkharmon AT tecoenergy DOT com]">mailto:pkharmon AT tecoenergy
DOT com]<=
/A><BR>Sent:=20
Friday, January 10, 2003 8:53 AM<BR>To:=20
veritas-bu AT mailman.eng.auburn DOT edu<BR>Subject: [Veritas-bu] Long =
Restore=20
times<BR><BR><BR>Hello,<BR><BR>I understood that a Netbackup=20
restore would take about twice as long as<BR>the=20
backup. My experience was 3 times as long to restore. The =
restore=20
was<BR>the only job running on the server and client. =
Are=20
there some restore<BR>parameters, I could use to help this =
process or=20
is<BR><BR>3 times a better ROT?<BR><BR>Backup time =
45g in 2=20
hours 38592 files<BR>Restore time 43g in 6=20
=
hours 21405 files<BR><BR>Environment:<BR><BR>Master/media=
<BR>Sun=20
E450<BR>Solaris 5.8<BR>(3) 400MHz processors<BR>NBU =
4.5<BR>L700 -=20
DLT8000 drives<BR><BR>Client<BR>Windows 2000<BR>100mb/full=20
duplex.<BR><BR>Thanks for any information or=20
=
experiences.<BR><BR><BR><BR><BR><BR>_____________________________________=
__________<BR>Veritas-bu=20
maillist - Veritas-bu AT mailman.eng.auburn DOT edu<BR><A=20
=
href=3D"http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu";>http:/=
/mailman.eng.auburn.edu/mailman/listinfo/veritas-bu</A><BR><BR>__________=
_____________________________________<BR>Veritas-bu=20
maillist - Veritas-bu AT mailman.eng.auburn DOT edu<BR><A=20
=
href=3D"http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu";>http:/=
/mailman.eng.auburn.edu/mailman/listinfo/veritas-bu</A><BR><BR></DIV></BL=
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