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  1.  Home
  2. MIDRANGE-L
  3. October 2000

Re: OS400 DATA MIGRATION

  • Subject: Re: OS400 DATA MIGRATION
  • From: "oludare" <oludare@xxxxxxxxxxxxx>
  • Date: Thu, 12 Oct 2000 14:51:30 -0400
 
Thanks for your input Richard but what type of excitement, good or bad? and
what will cause the excitement?

Dare

----- Original Message -----
From: "Richard Jackson" <richardjackson@richardjackson.net>
To: <MIDRANGE-L@midrange.com>
Sent: Thursday, October 12, 2000 1:07 PM
Subject: RE: OS400 DATA MIGRATION


> I did my part.  I gave input, I made suggestions, I expressed concerns.
>
> I hope that it works out but I think that you are going to have some
> excitement both over the weekend and when the system comes back up.  Good
> luck!
>
> Richard Jackson
> mailto:richardjackson@richardjackson.net
> http://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: Thursday, October 12, 2000 8:01 AM
> -|To: MIDRANGE-L@midrange.com
> -|Subject: Re: OS400 DATA MIGRATION
> -|
> -|
> -|Guys,
> -|
> -|I'm not an expert with AS/400 hardware but I don't know where
> -|50xx came from
> -|in my previous posting, see my system storage resources below.  I know
> -|these:
> -|
> -|1.    The new DASD (7 x 8.58Gig) is a type 6713 and all my
> -|current DASD (12
> -|x 4.xGig) is type 6607
> -|2.    My current Storage controller for all 10 DASD is 6512 type.
> -|3.    My current Storage controller for the 2 bottom DASD is 9162 type
> -|(Combined IOP).
> -|4.    IBM CE plan is to create another RAID for the new DASD (7 x
8.58Gig)
> -|then perform Data Migration.
> -|5.    The 2 drives will then be move to the bottom internal mirrored
set.
> -|
> -|Dare
> -|
> -|
> -|                                                       Storage Resources
> -|List
> -|
> -|----------Locatio
> -|n----------
> -|                               Serial       Part           Frame
> -|Card    Device
> -| Resource         Type-Model   Number       Number          ID
> -| EIA   Pos
> -|Pos     Text
> -| SI01              6513-001    10-7029014   0000017G1325   1
6
> -|Storage Controller
> -|   DC04            6385-001    00-09700                    1
> -|3        Tape Controller
> -|     TAP01         6385-001    00-09700                    1
> -|3        Tape Unit
> -| SI02              6512-001    10-7042002   0000099G9473   1
5
> -|Storage Controller
> -|   DC05            6607-072    00-0F43632   000000000000   1
> -|K1       Disk Storage Controller
> -|     DD003         6607-072    00-0F43632   86G912500000   1
> -|K1       Disk Unit
> -|   DC06            6607-072    00-0BB9159   000000000000   1
> -|K2       Disk Storage Controller
> -|     DD004         6607-072    00-0BB9159   86G912500000   1
> -|K2       Disk Unit
> -|   DC07            6607-072    00-0F43363   000000000000   1
> -|K3       Disk Storage Controller
> -|     DD005         6607-072    00-0F43363   86G912500000   1
> -|K3       Disk Unit
> -|   DC08            6607-070    00-0BB7222   000000000000   1
> -|K4       Disk Storage Controller
> -|     DD006         6607-070    00-0BB7222   86G912500000   1
> -|K4       Disk Unit
> -|   DC09            6607-072    00-0F37094   000000000000   1
> -|K9       Disk Storage Controller
> -|     DD007         6607-072    00-0F37094   86G912500000   1
> -|K9       Disk Unit
> -|   DC10            6607-072    00-0BC2962   000000000000   1
> -|K10      Disk Storage Controller
> -|     DD008         6607-072    00-0BC2962   86G912500000   1
> -|K10      Disk Unit
> -|   DC11            6607-072    00-0BC1727   000000000000   1
> -|K5       Disk Storage Controller
> -|     DD009         6607-072    00-0BC1727   86G912500000   1
> -|K5       Disk Unit
> -|   DC13            6607-072    00-0F43768   000000000000   1
> -|K6       Disk Storage Controller
> -|     DD011         6607-072    00-0F43768   86G912500000   1
> -|K6       Disk Unit
> -|   DC12            6607-072    00-0BB8603   000000000000   1
> -|K7       Disk Storage Controller
> -|     DD010         6607-072    00-0BB8603   86G912500000   1
> -|K7       Disk Unit
> -|   DC14            6607-070    00-0F33908   000000000000   1
> -|K8       Disk Storage Controller
> -|     DD012         6607-070    00-0F33908   86G912500000   1
> -|K8       Disk Unit
> -| SI04              2621-001    10-3120015   0000085F8845   2
2
> -|Storage Controller
> -|   DC19            9348-001    00-00000
> -|Tape Controller
> -|     TAP08         9348-001    00-00000
> -|Tape Unit
> -| CMB01             9162-001    10-6128020   0000021H9101   1
4
> -|Combined function IOP
> -|   DC01            6607-030    00-0BB9617                  1
> -|       9A
> -|Disk Storage Controller
> -|     DD001         6607-030    00-0BB9617                  1
> -|       9A
> -|Disk Unit
> -|   DC02            6607-030    00-0BD2365                  1
> -|       9B
> -|Disk Storage Controller
> -|     DD002         6607-030    00-0BD2365                  1
> -|       9B
> -|Disk Unit
> -|   DC03            6320-002    00-00000                    1
> -|2        Optical Controller
> -|     OPT01         6320-002    00-00000     0000088G4918   1
> -|2        Optical Storage Unit
> -|   DC18            6379-001    00-2032466                  1
> -|1        Tape Controller
> -|     TAP07         6379-001    00-2032466                  1
> -|1        Tape Unit
> -|----- Original Message -----
> -|From: "Larry Bolhuis" <lbolhuis@arbsol.com>
> -|To: <MIDRANGE-L@midrange.com>
> -|Sent: Wednesday, October 11, 2000 9:56 PM
> -|Subject: Re: OS400 DATA MIGRATION
> -|
> -|
> -|> Richard,
> -|>
> -|> > I was speaking of cheaper in the sense of lost time, risk of lost
data
> -|if
> -|> > the machine dies while running unprotected, risk of lost data
> -|if one of
> -|the
> -|> > backup tapes decides to be unreadable - that kind of cheaper.
> -|>
> -|>   Indeed IF a) A disk fails during the upgrade, and b) BOTH copies of
> -|> his backup are bad, then he is in deep deep weeds indeed.
> -|>
> -|> > In my opinion, people sometimes spend too much time worrying about
> -|hardware
> -|> > cost.  How much would the expansion unit cost and what
> -|feature/function
> -|> > would he get for it?  (that's a real question, not rhetorical)
> -|>
> -|>   As I recall-ball park-prices for a 50xx tower (Quote me NOT on these
> -|> numbers!!)  $13,000 a 5052 top hat $5500, a 6533 DASD controller
$9,900.
> -|> May need a #2688(?) to drive the fiber to the expansion cabinet
$2,500.
> -|> Add to that space, power, heat, and annual maintenance and it gets
> -|> pretty expensive for sure.
> -|>
> -|>   Certainly compared to the failure above (if it happens) it's cheap.
> -|>
> -|>   On the other hand if your tape drive writes two unusable copies of a
> -|> backup tape consecutively without throwing an error of some kind then
> -|> you likely have rust for backup for some time back.  While I recognize
> -|> that tape errors do exist I have done dozens and dozens of system
> -|> migrations with tape and cannot remember a single tape error stopping
a
> -|> conversion. Conditions are optimal - the tapes never change temp or
> -|> humidity. The same drive that wrote them has to read them. The drive
is
> -|> intentionally cleaned before each save. New or nearly new tapes are
> -|> prodently used. It don't get any better'n nat!
> -|>
> -|>   If the risk of missing data is evaluated -vs- the cost of the
> -|> expansion I suspect most risk managers will accept it.
> -|>
> -|> >  How much
> -|> > will a decent developer cost for the next year?  I would guess about
> -|> > $100,000 with desk, floor space, phone, PC, wages, overhead, machine
> -|cycles
> -|> > to support him, parking spot, and so forth.  How much will it cost
to
> -|> > rebuild the world if the backup turns out to be unreadable?  How
much
> -|will
> -|> > it cost in hours for the OP to fix if that happens?  How much will
it
> -|cost
> -|> > the business in lost opportunity while their people cannot use the
> -|system?
> -|>
> -|>   I have been involved with system recovery when a drive failed and
> -|> backups were junk. (In this case flat were not done and nobody was
told.
> -|> THe tape was labeled, logged, and in the vault but was empty!)  We had
> -|> to restore the OS and major componants from 5 YEAR old tapes! (no
errors
> -|> but there were more than a few things missing).  Their nightly backups
> -|> had not been updated for new products or program libraries in the 5
> -|> years  I never saw the estimated cost to the business but it was 6
> -|> figures by the end of day 1 for sure. Major function restoral took
three
> -|> days, complete restoral took over a week.
> -|>
> -|>   This mess had NOTHING to do with tape failure, rather it was
> -|> Operational Error.
> -|>
> -|>   Again, my .02.
> -|>
> -|>    - Larry
> -|>
> -|> --
> -|> Larry Bolhuis
> -|> Arbor Solutions, Inc.
> -|> (616) 451-2500
> -|> (616) 451-2571 -fax
> -|> lbolhuis@arbsol.com
> -|> +---
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