DaemonForums  

Go Back   DaemonForums > FreeBSD > FreeBSD Installation and Upgrading

FreeBSD Installation and Upgrading Installing and upgrading FreeBSD.

Reply
 
Thread Tools Display Modes
  #1   (View Single Post)  
Old 12th January 2010
Jago Jago is offline
New User
 
Join Date: Jan 2010
Posts: 7
Thanked 0 Times in 0 Posts
Default installing on a 80gb SSD, need help aligning partitions, etc

Hello

For my new server, I've ordered an Intel 80GB X25-M G2 SSD to be used as a system drive. For various reasons, I intent to stick with UFS2 for it (ZFS is going to be used on other disks in the system) and I intend to use GPT partitioning. Can anyone point me to any instructions regarding setting up proper sector sizes, properly aligning partitions to blocks and other such things? Windows 7 and Win2008 R2 both do this automagically, but other OSes seem to require a fair bit of manual work still.
Reply With Quote
  #2   (View Single Post)  
Old 13th January 2010
J65nko J65nko is offline
Administrator
 
Join Date: May 2008
Location: Budel - the Netherlands
Posts: 3,142
Thanked 182 Times in 149 Posts
Default

What leads you to believe that you need to align partitions to blocks?
__________________
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump
Reply With Quote
  #3   (View Single Post)  
Old 13th January 2010
Jago Jago is offline
New User
 
Join Date: Jan 2010
Posts: 7
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by J65nko View Post
What leads you to believe that you need to align partitions to blocks?
The fact that most, if not all SSD's suffer if this is not done. It causes excessive disk access during IO, because instead of reading off or writing to 1 block (aligned), it has to read or write to 2 (misaligned). This causes a performance hit in random IO and causes increased wear on the SSD during write operations, shortening it's lifetime.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Operating BSD partitions through XP SunSpyda OpenBSD General 10 16th September 2009 08:22 PM
How to swap partitions Help revzalot OpenBSD Installation and Upgrading 2 1st September 2009 07:44 AM
more than four primary partitions? gosha OpenBSD General 40 13th August 2009 11:43 AM
backup fdisk partitions gosha OpenBSD General 17 16th July 2009 03:19 AM
partitions italogf FreeBSD Installation and Upgrading 5 7th July 2008 12:14 PM


All times are GMT. The time now is 07:38 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content copyright © 2007-2010, the authors
Daemon image copyright ©1988, Marshall Kirk McKusick