IDS Forum

RE: Are there issues when using RAW dbspaces on ID

Posted By: Andrew Lennard
Date: Wednesday, 28 July 2010, at 12:19 p.m.

In Response To: Are there issues when using RAW dbspaces on IDS 11 (Jim Cramer)

Maybe your sysadmins are frightened that they'd forget they were there! I recently had a hardware engineer that noticed that /home was getting a bit full and offered to add 'one of those unused partitions you've got all over the place'...

> To: ids@iiug.org
> From: jim-cramer@uiowa.edu
> Subject: Are there issues when using RAW dbspaces on ID.... [20662]
> Date: Tue, 27 Jul 2010 15:14:05 -0400
>
> HELP!
>
> Here is another angle to the recent questions, and explanations
> by Art, et. al, regarding using RAW instead of COOKED dbspaces
> on IDS 11.5 running on Linux.
>
> For reasons cited by Art and the others, I (the DBA) wish to use
> RAW dbspaces when I move my instances to Linux (SUSE 11 SLES)
> Virtual Machines on an ESX Server running VMWare.
>
> But my Sys Admins here are refusing to allow RAW spaces and citing
> all kinds of vague, generalized reasons why, such as:
>
> 1) the "host administration utilities" will not fly right
> with Raw Spaces but will not be specific about what would
> go wrong. In general, my sense is that they feel that
> the Management Console and Tools for the ESX host might
> see the Raw Dbspace and, because it does not contain not a formatted
> filesystem, allocate it to something on the box.
>
> 2) using raw space will not allow the VMs containing the IDS
> dbspaces to be backed up or fit into their backup strategy
> and backup utility.
>
> They cannot seem to understand that a normal backup utility
> would not know how to deal with the dbspaces even if they
> were Cooked.
>
> 3) that the "little bit" of performance that they claim I might
> get with Raw will not pay back for the increased Sys Admin
> overhead.
>
> 4) that they will use a Journaled File System (along with Cooked
> dbspaces) because it is more robust, fault-tolerant, comes
> back up quicker after a crash, etc.
>
> Can anybody provide me with any concrete information/experience
> that is related to the above points, particularly (1) .
>
> Does anyone know if raw dbspaces can cause problems in a Virtual
> Machine on a VMWare ESX Server.
>
> If you have some info and have time to send it soon, that would
> be appreciated because I am about to do battle over this with
> our Sys Admins.
>
> Thanks much in advance,
>
> Jim Cramer
> Database Administrator and
> Applications Developer III
> University of Iowa
> College of Engineering
> Engineering Computer Systems Support
> 1256 SC
> Iowa City, Iowa 52245
> (319)-335-5757
> jim-cramer@uiowa.edu
> jcramer@engineering.uiowa.edu
> http://css.engineering.uiowa.edu
> http://www.engineering.uiowa.edu
> http://www.uiowa.edu
>
>
> *******************************************************************************
> Forum Note: Use "Reply" to post a response in the discussion forum.
>

Messages In This Thread

• Are there issues when using RAW dbspaces on IDS 11
  Jim Cramer -- Tuesday, 27 July 2010, at 3:14 p.m.
  • RE: Are there issues when using RAW dbspaces on ID
    Wyza, Jonathon -- Tuesday, 27 July 2010, at 3:22 p.m.
    • RE: Are there issues when using RAW dbspaces o....
      jim-cramer@uiowa.edu -- Wednesday, 28 July 2010, at 11:15 a.m.
      • RE: Are there issues when using RAW dbspaces o....
        Wyza, Jonathon -- Wednesday, 28 July 2010, at 11:20 a.m.
        • RE: Are there issues when using RAW dbspaces o....
          jim-cramer@uiowa.edu -- Wednesday, 28 July 2010, at 11:48 a.m.
        • RE: Are there issues when using RAW dbspaces o....
          jim-cramer@uiowa.edu -- Thursday, 29 July 2010, at 9:55 a.m.
          • RE: Are there issues when using RAW dbspaces o....
            Wyza, Jonathon -- Thursday, 29 July 2010, at 10:34 a.m.
            • RE: Are there issues when using RAW dbspaces o....
              jim-cramer@uiowa.edu -- Thursday, 29 July 2010, at 10:56 a.m.
  • Re: Are there issues when using RAW dbspaces on ID
    Alexandre Marini -- Tuesday, 27 July 2010, at 3:30 p.m.
    • RE: Are there issues when using RAW dbspaces o....
      jim-cramer@uiowa.edu -- Wednesday, 28 July 2010, at 11:15 a.m.
  • Re: Are there issues when using RAW dbspaces on ID
    Art Kagel -- Tuesday, 27 July 2010, at 5:59 p.m.
    • Re: Are there issues when using RAW dbspaces o....
      Fernando Nunes -- Wednesday, 28 July 2010, at 4:18 a.m.
      • Re: Are there issues when using RAW dbspaces o....
        Art Kagel -- Wednesday, 28 July 2010, at 8:48 a.m.
        • RE: Are there issues when using RAW dbspaces o....
          jim-cramer@uiowa.edu -- Wednesday, 28 July 2010, at 11:40 a.m.
          • Re: Are there issues when using RAW dbspaces o....
            Art Kagel -- Wednesday, 28 July 2010, at 5:11 p.m.
      • RE: Are there issues when using RAW dbspaces o....
        jim-cramer@uiowa.edu -- Wednesday, 28 July 2010, at 11:31 a.m.
  • RE: Are there issues when using RAW dbspaces on ID
    Andrew Lennard -- Wednesday, 28 July 2010, at 12:19 p.m.

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