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  3. July 2000

Re: AS/400 UPGRADE

  • Subject: Re: AS/400 UPGRADE
  • From: "oludare" <oludare@xxxxxxxxxxxxx>
  • Date: Mon, 17 Jul 2000 15:39:32 -0400
 
Hi Richard,

Could you, if you know, how to find out if my IOP is incapable of supporting
more than 1 RAID set.  Are you also claiming that I have 48gig of DASD on my
510?  If so, could you explain the use of the mirrored DASD.  Below you'll
find detail information on my IOP.

                          Display Storage Resources
                                                            System:   PLS
Type options, press Enter.
  7=Display resource detail   9=Display associated resources

Opt  Resource        Type  Status                Text
    CMB01          9162  Operational           Combined function IOP
       DC01          6607  Operational           Disk Storage Controller
       DC02          6607  Operational           Disk Storage Controller
       DC03          6320  Operational           Optical Controller
       DC18          6379  Operational           Tape Controller


----- Original Message -----
From: "Richard Jackson" <richardjackson@richardjackson.net>
To: <MIDRANGE-L@midrange.com>
Sent: Monday, July 17, 2000 2:19 PM
Subject: RE: AS/400 UPGRADE


> The first two units on your system comprise a mirrored pair.
>
> The other 10 units are RAID-5 protected.  The parity data is stored on 8
> disk arms.  The arms containing parity data are the ones whose size are
> 3670.  The maximum number of arms in a single RAID set is 10, this RAID
set
> is full.  A system this old might have an IOP that is incapable of
> supporting more than one RAID set.  The minimum drives in a new RAID set
is
> four.  I hope that you have considered that.
>
> Considering the percent-used on the disk, after you add new disk units,
you
> should use DSKBAL to re-spread your objects.  Otherwise, you may
experience
> a performance issue.
>
> If you add DASD to this IOP, the IOP may become overloaded and you may
> experience a performance issue when the system is under high stress.  This
> is a complex issue, not easily described in one or two sentences.
>
> Adding memory to this system could reduce page faulting and smooth out the
> effect of the overloaded disk IOP.
>
> Richard Jackson
> mailto:richardjackson@richardjackson.net
> www.richardjacksonltd.com
> Voice: 1 (303) 808-8058
> Fax:   1 (303) 663-4325
>
> -----Original Message-----
> From: owner-midrange-l@midrange.com
> [mailto:owner-midrange-l@midrange.com]On Behalf Of oludare
> Sent: Monday, July 17, 2000 10:40 AM
> To: MIDRANGE-L@midrange.com
> Subject: Re: AS/400 UPGRADE
>
>
> Guys, I am on a 510-2143 system and currently about 42Gig (see below),
this
> is only a DASD, MEMORY and OS400 upgrade.  I think I have RAID dasd system
> from your discussions.  I have included DISK configuration below for
> clarity.  Thanks all for your input.
>
>
>                      Display Disk Configuration Protection
>              Serial                  Resource
>  ASP  Unit   Number      Type Model  Name        Protection
>    1
> Mirrored
>          1   00-0BB9617  6607  030   DD001       Controller
>          1   00-0BD2365  6607  030   DD002       Controller
>          3   00-0F33908  6607  070   DD012       Device Parity
>          4   00-0F43768  6607  072   DD011       Device Parity
>          5   00-0BB8603  6607  072   DD010       Device Parity
>          6   00-0BC1727  6607  072   DD009       Device Parity
>          7   00-0BC2962  6607  072   DD008       Device Parity
>          8   00-0F37094  6607  072   DD007       Device Parity
>          9   00-0BB7222  6607  070   DD006       Device Parity
>         10   00-0F43363  6607  072   DD005       Device Parity
>         11   00-0BB9159  6607  072   DD004       Device Parity
>         12   00-0F43632  6607  072   DD003       Device Parity
>
>
>
>                      Display Disk Configuration Capacity
>                                               ----Protected--- ---Unprotec
te
> d--
>  ASP  Unit   Type Model  Threshold  Overflow       Size  %Used      Size
> %Used
>    1                                                 90%    No
> 41943 94.57%         0  0.00%
>          1   6607  030
> 4194 94.51%         0  0.00%
>          1   6607  030
> 4194 94.51%         0  0.00%
>          3   6607  070
> 4194 94.61%         0  0.00%
>          4   6607  072
> 3670 94.88%         0  0.00%
>          5   6607  072
> 3670 94.52%         0  0.00%
>          6   6607  072
> 3670 94.78%         0  0.00%
>          7   6607  072
> 3670 94.43%         0  0.00%
>          8   6607  072
> 3670 94.60%         0  0.00%
>          9   6607  070
> 4194 94.45%         0  0.00%
>         10   6607  072
> 3670 94.54%         0  0.00%
>         11   6607  072
> 3670 94.44%         0  0.00%
>         12   6607  072
> 3670 94.50%         0  0.00%
>
>
>
>
>
>
> ----- Original Message -----
> From: "Chris Bipes" <chris.bipes@cross-check.com>
> To: <MIDRANGE-L@midrange.com>
> Sent: Monday, July 17, 2000 10:33 AM
> Subject: RE: AS/400 UPGRADE
>
>
> > For the hardware compatibility.  The older software may not handle the
new
> > memory or dasd.  But again it may.  You your self warn about the
> > pre-requisites.  You do have a valid point about spreading the OS across
> the
> > new drives, but then there is the new disk balancing that is available
> with
> > V4R3 and even better in V4R4.  The V4R4 version is even better than the
> > spread when loading the tapes.  Also, they are only upgrading the OS so
> the
> > data will not be touched and not spread across the new drives.
> >
> >
> >
> > Christopher K. Bipes mailto:ChrisB@Cross-Check.com
> > Sr. Programmer/Analyst mailto:Chris_Bipes@Yahoo.com
> > CrossCheck, Inc. http://www.cross-check.com
> > 6119 State Farm Drive Phone: 707 586-0551 x 1102
> > Rohnert Park CA  94928   Fax: 707 586-1884
> >
> > If consistency is the hobgoblin of little minds, only geniuses work
here.
> > Karen Herbelin - Readers Digest 3/2000
> >
> >
> > -----Original Message-----
> > From: Allen, Stu [mailto:sallen@fellowes.com]
> > Sent: Monday, July 17, 2000 3:32 AM
> > To: 'MIDRANGE-L@midrange.com'
> > Subject: RE: AS/400 UPGRADE
> >
> >
> > Chris,
> > Out of interest, why?
> > Extra memory would make the software u/g quicker, and the extra disk
would
> > ensure that the LPP libraries would be spread over more disk arms...
> >
> > Dare, concentrate on the s/w upgrade.  As long as you meet
pre-requisites,
> > (which your hardware vendor should be able to confirm), disk, memory,
and
> no
> > protection->raid are a piece of cake.
> >
> > Regards,
> > Stuart
> >
> > Stuart Allen
> > European Systems Analyst,  Fellowes
> > mailto:sallen@fellowes.com
> > +---
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