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We are just starting to set up DSU storage and have completed some extensiv=
e performance tests=2E So far, we have found RAID5 4+1 works best with our=
file system (small files) backups and RAID3 4+1 works best with our databa=
se and raw backups=2E There is still some testing going on as far as buffe=
r settings, we are between 256k and 512K buffer settings and are still not =
sure which is going to work out best for us=2E These tests have all just b=
een done in a test environment, we won't know if we have to tweak anything =
for production for another month or so=2E=0D=0A =0D=0A =0D=0A =0D=0A=0D=0AR=
ene=E9 Carlisle =0D=0ASr=2E Systems Administrator=0D=0A675 Basket Road=0D=
=0AWebster, NY 14580 =0D=0A=0D=0AJer 29:11-13=0D=0A=0D=0A =0D=0A=0D=0A =0D=
=0A=0D=0A585-216-0497 (w)=0D=0A585-472-2360 (c)=0D=0A=0D=0A =0D=0A =0D=0A=
=0D=0A________________________________=0D=0A=0D=0AFrom: veritas-bu-admin@ma=
ilman=2Eeng=2Eauburn=2Eedu [mailto:veritas-bu-admin@mailman=2Eeng=2Eauburn=
=2Eedu] On Behalf Of andrew=2Ex=2Esmith@jpmchase=2Ecom=0D=0ASent: Thursday,=
March 23, 2006 4:57 AM=0D=0ATo: Ambrose, Monte=0D=0ACc: veritas-bu@mailman=
=2Eeng=2Eauburn=2Eedu=0D=0ASubject: Re: [Veritas-bu] Disk backup - Storage =
Hardware configurations=0D=0A=0D=0A=0D=0A=0D=0AHi Monte, =0D=0A=0D=0A I di=
d one install with EMC DMX1000 disk with hardware mirroring used for a DSSU=
and I have to say I found performance wasn't great=2E Worse than LTO2 perf=
ormance but this was writing to a fairly small number of physical drives, t=
hough performance wasn't an issue so I didn't spend a lot of time tuning it=
, =0D=0A=0D=0A cheers Andy=2E =0D=0A=0D=0A=0D=0A=0D=0A=0D=0A=
"Ambrose, Monte" <mambrose@qualcomm=2Ecom> =0D=0ASent by:
veritas-bu-admin=
@mailman=2Eeng=2Eauburn=2Eedu =0D=0A=0D=0A23/03/2006 01:54 =0D=0A=0D=0A=0D=
=0A =0D=0A To: <veritas-bu@mailman=2Eeng=2Eauburn=2Eed=
u> =0D=0A cc: =0D=0A Subject: [Veritas-bu] Dis=
k backup - Storage Hardware configurations=0D=0A=0D=0A=0D=0A=0D=0AI wanted =
to get a feel for what type of disk storage is being used out there for dis=
k based backups=2E I am specifically looking for SAN attached storage ATA,=
SATA and what type of RAID is used and how it is performing overall=2E T=
he NBU 6=2E0 tuning guide shows RAID-5 but I am wondering if anyone is usin=
g RAID-10 or others=2E =0D=0A =0D=0AThanks, Monte =0D=0A =0D=0A=0D=0A=0D=
=0A=0D=0A=0D=0A=0D=0A-----------------------------------------=0D=0AThe inf=
ormation contained in this message may be privileged,=0D=0Aconfidential, an=
d protected from disclosure=2E If the reader of this=0D=0Amessage is not th=
e intended recipient, or any employee or agent=0D=0Aresponsible for deliver=
ing this message to the intended recipient,=0D=0Ayou are hereby notified th=
at any dissemination, distribution, or=0D=0Acopying of this communication i=
s strictly prohibited=2E If you have=0D=0Areceived this communication in er=
ror, please notify us immediately=0D=0Aby replying to the message and delet=
ing it from your computer=2E=0D=0A=0D=0AThank you=2E Paychex, Inc=2E=0D=0A
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4=2E0 Transitional//EN">=0D=0A<HTML=
><HEAD>=0D=0A<META http-equiv=3DContent-Type content=3D"text/html; charset=
=3Diso-8859-1">=0D=0A<META content=3D"MSHTML 6=2E00=2E2900=2E2802" name=3DG=
ENERATOR></HEAD>=0D=0A<BODY>=0D=0A<DIV dir=3Dltr align=3Dleft><SPAN class=
=3D520145318-23032006><FONT face=3DArial =0D=0Acolor=3D#0000ff size=3D2>We =
are just starting to set up DSU storage and have =0D=0Acompleted some exten=
sive performance tests=2E So far, we have found RAID5 =0D=0A4+1 works=
best with our file system (small files) backups and RAID3 4+1 works =0D=0A=
best with our database and raw backups=2E There is still some testing=
going =0D=0Aon as far as buffer settings, we are between 256k and 512K buf=
fer settings and =0D=0Aare still not sure which is going to work out best f=
or us=2E These tests =0D=0Ahave all just been done in a test environm=
ent, we won't know if we have to tweak =0D=0Aanything for production for an=
other month or so=2E</FONT></SPAN></DIV>=0D=0A<DIV> </DIV>=0D=0A<DIV a=
lign=3Dleft><FONT face=3DArial size=3D2></FONT> </DIV>=0D=0A<DIV> =
;</DIV>=0D=0A<DIV align=3Dleft>=0D=0A<P class=3DMsoNormal style=3D"MARGIN: =
0in 0in 0pt"><SPAN class=3Dspelle><SPAN =0D=0Astyle=3D"FONT-SIZE: 18pt; COL=
OR: blue; FONT-FAMILY: 'Monotype Corsiva'; mso-bidi-font-family: Arial">Ren=
e=E9</SPAN></SPAN><SPAN =0D=0Astyle=3D"FONT-SIZE: 18pt; COLOR: blue; FONT-F=
AMILY: 'Monotype Corsiva'; mso-bidi-font-family: Arial"> =0D=0ACarlisle </S=
PAN><SPAN style=3D"FONT-FAMILY: Arial"><BR></SPAN><SPAN =0D=0Astyle=3D"FONT=
-SIZE: 7=2E5pt; COLOR: blue; FONT-FAMILY: Georgia; mso-bidi-font-family: Ar=
ial">Sr=2E =0D=0ASystems Administrator<BR><?xml:namespace prefix =3D st1 =
=0D=0A/><st1:address><st1:Street>675 Basket =0D=0ARoad<BR></st1:Street><st1=
:City>Webster</st1:City>, <st1:State>NY</st1:State> =0D=0A<st1:PostalCode>1=
4580<SPAN class=3D893375120-30082005> =0D=0A</SPAN></st1:PostalCode></st1:a=
ddress></SPAN></P>=0D=0A<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt">=
<SPAN =0D=0Astyle=3D"FONT-SIZE: 7=2E5pt; COLOR: blue; FONT-FAMILY: Georgia;=
mso-bidi-font-family: Arial"><st1:address><st1:PostalCode><SPAN =0D=0Aclas=
s=3D893375120-30082005>Jer =0D=0A29:11-13</SPAN></st1:PostalCode></st1:addr=
ess></SPAN><st1:address><st1:PostalCode></P></st1:PostalCode></st1:address>=
=0D=0A<P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><SPAN =0D=0Astyle=
=3D"FONT-SIZE: 7=2E5pt; COLOR: blue; FONT-FAMILY: Georgia; mso-bidi-font-fa=
mily: Arial"><st1:address><st1:PostalCode></st1:PostalCode></st1:address><s=
t1:address><st1:PostalCode><SPAN =0D=0Aclass=3D893375120-30082005><FONT fac=
e=3DArial color=3D#000000 =0D=0Asize=3D2></FONT></SPAN></st1:PostalCode></s=
t1:address></SPAN> </P>=0D=0A<P class=3DMsoNormal style=3D"MARGIN: 0in=
0in 0pt"><SPAN =0D=0Astyle=3D"FONT-SIZE: 7=2E5pt; COLOR: blue; FONT-FAMILY=
: Georgia; mso-bidi-font-family: Arial"><st1:address><st1:PostalCode></SPAN=
> </P></st1:PostalCode></st1:address>=0D=0A<P class=3DMsoNormal =0D=0A=
style=3D"MARGIN: 0in 0in 0pt; mso-margin-top-alt: auto; mso-margin-bottom-a=
lt: auto"><SPAN =0D=0Astyle=3D"COLOR: blue">585-216-0497 (w)<BR>585-472-236=
0 (c)<?xml:namespace prefix =3D =0D=0Ao ns =3D "urn:schemas-microsoft-com:o=
ffice:office" /><o:p></o:p></SPAN></P></DIV>=0D=0A<DIV> </DIV>=0D=0A<D=
IV> </DIV><BR>=0D=0A<DIV class=3DOutlookMessageHeader lang=3Den-us dir=
=3Dltr align=3Dleft>=0D=0A<HR tabIndex=3D-1>=0D=0A<FONT face=3DTahoma size=
=3D2><B>From:</B> veritas-bu-admin@mailman=2Eeng=2Eauburn=2Eedu =0D=0A[mail=
to:veritas-bu-admin@mailman=2Eeng=2Eauburn=2Eedu] <B>On Behalf Of =0D=0A</B=
>andrew=2Ex=2Esmith@jpmchase=2Ecom<BR><B>Sent:</B> Thursday, March 23, 2006=
4:57 =0D=0AAM<BR><B>To:</B> Ambrose, Monte<BR><B>Cc:</B> =0D=0Averitas-bu@=
mailman=2Eeng=2Eauburn=2Eedu<BR><B>Subject:</B> Re: [Veritas-bu] Disk =0D=
=0Abackup - Storage Hardware configurations<BR></FONT><BR></DIV>=0D=0A<DIV>=
</DIV><BR><FONT face=3Dsans-serif size=3D2>Hi Monte,</FONT> <BR><BR><FONT =
=0D=0Aface=3Dsans-serif size=3D2> I did one install with EMC DMX1000 =
disk with =0D=0Ahardware mirroring used for a DSSU and I have to say I foun=
d performance wasn't =0D=0Agreat=2E Worse than LTO2 performance but this wa=
s writing to a fairly small number =0D=0Aof physical drives, though perform=
ance wasn't an issue so I didn't spend a lot =0D=0Aof time tuning it,</FONT=
> <BR><BR><FONT face=3Dsans-serif size=3D2> =0D=0A  =
; cheers Andy=2E</FONT> <BR><BR><BR><BR>=0D=0A<=
TABLE width=3D"100%">=0D=0A <TBODY>=0D=0A <TR vAlign=3Dtop>=0D=0A <TD>=
=0D=0A <TD><FONT face=3Dsans-serif size=3D1><B>"Ambrose, Monte" =0D=0A =
<mambrose@qualcomm=2Ecom></B></FONT> <BR><FONT face=3Dsans-serif =
=0D=0A size=3D1>Sent by: veritas-bu-admin@mailman=2Eeng=2Eauburn=2Eedu=
</FONT> =0D=0A <P><FONT face=3Dsans-serif size=3D1>23/03/2006 01:54</F=
ONT> <BR></P>=0D=0A <TD><FONT face=3DArial size=3D1> =
</FONT><BR><FONT =0D=0A face=3Dsans-serif size=3D1> &nbs=
p; To: =0D=0A <veritas-bu@=
mailman=2Eeng=2Eauburn=2Eedu></FONT> <BR><FONT =0D=0A face=3Dsans-s=
erif size=3D1> cc: =0D=0A &nb=
sp; </FONT> <BR><FONT face=3Dsans-serif size=3D1> =
=0D=0A Subject: [Veritas-bu] Disk b=
ackup - =0D=0A Storage Hardware configurations</FONT></TR></TBODY></TA=
BLE><BR><BR><BR><FONT =0D=0Aface=3D"Courier New" size=3D2>I wanted to get a=
feel for what type of disk storage =0D=0Ais being used out there for disk =
based backups=2E I am specifically looking =0D=0Afor SAN attached sto=
rage ATA, SATA and what type of RAID is used and how it is =0D=0Aperforming=
overall=2E The NBU 6=2E0 tuning guide shows RAID-5 but I am =0D=0Aw=
ondering if anyone is using RAID-10 or others=2E</FONT> <BR><FONT =0D=0Afac=
e=3D"Courier New" size=3D2> </FONT> <BR><FONT face=3D"Courier New" =0D=
=0Asize=3D2>Thanks, Monte</FONT> <BR><FONT face=3DArial size=3D2> </FO=
NT> =0D=0A<BR><BR></BODY></HTML>=0D=0A=0D=0A=0D=0A<HTML><BODY><P><hr size=
=3D1></P><br>=0D=0A<P><STRONG><br>=0D=0AThe information contained in this m=
essage may be privileged,<br>=0D=0Aconfidential, and protected from disclos=
ure=2E If the reader of this<br>=0D=0Amessage is not the intended recipient=
, or any employee or agent<br>=0D=0Aresponsible for delivering this message=
to the intended recipient,<br>=0D=0Ayou are hereby notified that any disse=
mination, distribution, or<br>=0D=0Acopying of this communication is strict=
ly prohibited=2E If you have<br>=0D=0Areceived this communication in error,=
please notify us immediately<br>=0D=0Aby replying to the message and delet=
ing it from your computer=2E<br>=0D=0A<br>=0D=0AThank you=2E Paychex, Inc=
=2E<br>=0D=0A</STRONG></P></BODY></HTML>=0D=0A
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