NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.

To learn about what's going on, see About the Archive Site.

Re: [ldm-users] high memory

Has anyone tried mounting ext3 with the data=writeback option (with the risk that active data files could be corrupt after a crash)? I'm wondering how close performance would come to ext2... 

                              Art

On Mon, 25 Oct 2010, Gerald Creager wrote:
The choices for files of this size are ext2 if you don't care about journaling, or XFS. XFS has its own share of problems but does work very well. 

gerry

Tyler Allison wrote:
We switched off of ext3 for our data partitions for high speed IO. It blows chunks compared to ext2. You loose journaling but I don't care. I don't have long term storage. 

Sent from my iPhone
On Oct 25, 2010, at 3:10 PM, "Jeff Lake - Admin" <admin@xxxxxxxxxxxxxxxxxxxx> wrote: 


yep both 7200 SATA2's
was considering a Velociraptor 10K RPM but at the xtra $60/m .... need to really consider long and hard 



Jeff,
If your disk RPM isn't at least 7200, your I/O is going to be bad with Level2/3 feeds. 
*******************************************************************************
Gilbert Sebenste ******** (My opinions only!) ****** Staff Meteorologist, Northern Illinois University **** E-mail: sebenste@xxxxxxxxxxxxxxxxxxxxx *** 
web: http://weather.admin.niu.edu                                      **
*******************************************************************************
_______________________________________________
ldm-users mailing list
ldm-users@xxxxxxxxxxxxxxxx
For list information or to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/ 
_______________________________________________
ldm-users mailing list
ldm-users@xxxxxxxxxxxxxxxx
For list information or to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/ 

_______________________________________________
ldm-users mailing list
ldm-users@xxxxxxxxxxxxxxxx
For list information or to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/ 

--
Gerry Creager -- gerry.creager@xxxxxxxx
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843

_______________________________________________
ldm-users mailing list
ldm-users@xxxxxxxxxxxxxxxx
For list information or to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/ 

Arthur A. Person
Research Assistant, System Administrator
Penn State Department of Meteorology
email:  person@xxxxxxxxxxxxx, phone:  814-863-1563
  • 2010 messages navigation, sorted by:
    1. Thread
    2. Subject
    3. Author
    4. Date
    5. ↑ Table Of Contents
  • Search the ldm-users archives: