SUMMARY: my new V880 and disk slices

From: Kevin Metzger <>
Date: Mon Jan 06 2003 - 10:36:43 EST
Thanks to Andy Crichton, Brett Lanham, Kevin Buterbaugh, Christophe Dupre,
John Eisenschmidt for respionces and I appologize for the delay.  

A couple of themes:

  22G s a big /var.
this is true, but I've had problems with all the systems I have for /var
running out of space and this server is going to use a lot of /var space, so
I'm going to allocate it while I have it.  Also, it will be connected to a EMC
FC4700 SAN, so the internal drives (6x72G) are not going to be needed for
applications and data.  Use it if you have it.

  Don't RAID5 a database.
Agreed.  Parity uses enough CPU to slow things down.  And If I don't show
performance improvement, I'm not likely to get more budget approved for
anything.  RAID 1+0 for the database.

  Use the available number of slices.
Maked ufsdump easier, filling / causes a system to hang, managing growth would
be easier.  I used:
/dev/dsk/c1t0d0s0     1233679   101570  1070426     9%    /
/dev/dsk/c1t0d0s4     7516781  1130618  6310996    16%    /usr
/dev/dsk/c1t0d0s5    17539178  8342565  9021222    49%    /opt
/dev/dsk/c1t0d0s6     7566893    36790  7454435     1%    /export
/dev/dsk/c1t0d0s7    20044777   126056 19718274     1%    /var
with slice 1 for swap
     slice 2 left as backup
     slice 3 for metadb for SDS

Drives 2 an 4 have been given to my DBA and drives 1,3 and 5 for the RAID 

Q1 purchase of a pair fo SAN switches will connect this to my EMC FC4700 and
the database will move there then.  Then I'll have 6x72G for the OS. =)

  There should be some swap.
Opinions varied, from RAM size to 2-4 times RAM.  With the drive space
available now, I went with 2x RAM.

Kevin Metzger
Systems Administrator
Progressive Medical, Inc.

Recieved Wed, 11 Dec 2002, from Kevin Metzger:

-Date: Wed, 11 Dec 2002 12:16:24 -0500 (EST)
-From: Kevin Metzger <>
-To: sunmanagers mailing list <>
-Subject: my new V880 and disk slices
-Getting ready to load up solaris 9 on my new V880 with 2xCPU 4G mem and 6x72G
-HDDs to paly with.  I plan on leaving 4 HDDs for my DBA to load Oracle later
-(SVM raid 5).  I plan on mirroring my OS disk leaving me one 72G drive to play
-with.  I remember reading that leaving a 100M slice at the beginning for SVM.
-I have read lately that Sun is leaning to fewer large slices instead of
-more smaller.  So, my plan is:
-/svm	100m
-/	50G
-/var	22G
-Also, thoughts about making a smaller than twice mem size swap?  I'm planning
-on 8G swap since I will have the disk space right now.
-Thanks, and I'll summarize
-Kevin Metzger
-Systems Administrator
-Progressive Medical, Inc.
-sunmanagers mailing list
sunmanagers mailing list
Received on Mon Jan 6 10:39:47 2003

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