Blogs Classifieds Downloads FlashChat Gallery Googlemap Invite Friends Links Projects Reviews Wiki
 
Home Forums Register FAQ Members List Calendar Mark Forums Read

Go Back pSeries Tech Talk Forums Operatings Systems for POWER Systems AIX for POWER Systems
Reload this Page

AIO Tuning

Discuss AIO Tuning on the 'AIX for POWER Systems' forum of pSeriesTech.org. Talk about AIO Tuning with the IBM pSeries Technical Support Community.

Our Sponsors
Want to advertise?  


Reply
 
LinkBack Thread Tools
  #1  
Old March 16th, 2007
sttcomp's Avatar
sttcomp Offline
Junior Member
  
Join Date: March 2007
Posts: 1
AIO Tuning
permalink
System info:
p550, 4CPU (8 SMP), 32GB memory
DB2 database server

I have been doing some reading and searching on tuning the AIO parameters. One thing that was mentioned was that the AIO would only help if you were using filesystem based files, and not raw logical volumes. Would the use of CIO fall into that same category?
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
  #2  
Old March 28th, 2007
JohnL's Avatar
JohnL Offline
Junior Member
  
Join Date: March 2007
Posts: 1
Re: AIO Tuning
permalink
CIO should only be used on filesystem based files. As an example, it makes a filesystem based data file "look" like it's on a raw device to Oracle (with about an 80% - 90% success rate). Obviously, if one were already using a raw device, CIO wouldn't be needed.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Reply

Bookmarks

These are the 100 most searched terms
Search Cloud
0042-001 0042-001 nim 0042-008 nimsh: request denied 0513-001 the system resource controller daemon is not active 0513-001 the system resource controller daemon is not active. 0514-061 0514-061 cannot find a child device 0514-061 cannot find a child device. 0516-787 0516-787 extendlv 0516-787 extendlv: maximum allocation for logical volume 110000ac 3074feb7 aa00e1f3 aio aix aix aio aix freeware aix memory usage aix rsync aixif_arp_dup_addr b150f22a b181f22a b181fb53 ba010004 bfe4c025 c1001020 d133c002 dacnone dcb47997 fcp_array_err6 fget_config gnu tar aix gtar aix hmc root password hmc vmware ibm p6 520 libpopt.a migratelv navisphere agent nim server pseriestech ptype and account type do not match rshd: 0826-813 permission is denied rshd: 0826-813 permission is denied. rsync aix sc_disk_err4 scan_error_chrp vio server vmware hmc websm ... powered by Simple Search Cloud

« SMIA Storage Manager Packages for AIX? | Dupicate directory entries »

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tuning shmmni in AIX 5L dantech75 AIX for POWER Systems 2 June 14th, 2007 13:36
AIX Tuning Data warehouse jcrittall AIX for POWER Systems 7 May 24th, 2007 06:12
Tuning asynchronous io for Sybase on IBM/AIX siakadoumbia AIX for POWER Systems 1 October 9th, 2006 08:00
Reading: Tuning IBM AIX 5L for an Oracle Database yogeeraj AIX for POWER Systems 0 August 21st, 2006 00:39



Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0
Powered by vbWiki Pro 1.3 RC5. Copyright ©2006-2007, NuHit, LLC

vBulletin Skin developed by: vBStyles.com

pSeries Tech Talk - Archive - Privacy Statement - Top

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82