Use Version 3.1.2 of ADSM/400 and define your 3590 with a ESTCAP of 30G and
FORMAT=DRIVE...
Run a client backup, migrate your data to tape and when the EOT is reached,
the ESTCAP value is re-ajusted to the real Capacity and marks the tape as
FULL.
It is important to note my tests were with Client Compression turnned off...
adsm> q vol 002054 f=d
VOLUME NAME: 002054
STORAGE POOL NAME: TAPETEST
DEVICE CLASS NAME: ADSM3590X
ESTIMATED CAPACITY (MB): 12,457.4
PCT UTIL: 100.0
VOLUME STATUS: FULL
ACCESS: READ/WRITE
PCT. RECLAIMABLE SPACE: 0.0
SCRATCH VOLUME?: YES
IN ERROR STATE?: NO
NUMBER OF WRITABLE SIDES: 1
NUMBER OF TIMES MOUNTED: 3
WRITE PASS NUMBER: 1
APPROX. DATE LAST WRITTEN: 01/06/2000 11:13:42
APPROX. DATE LAST READ: 01/05/2000 15:16:35
DATE BECAME PENDING:
NUMBER OF WRITE ERRORS: 0
NUMBER OF READ ERRORS: 0
VOLUME LOCATION:
LAST UPDATE BY (ADMINISTRATOR):
LAST UPDATE DATE/TIME: 01/05/2000 15:16:33
adsm> q vol
VOLUME NAME STORAGE DEVICE ESTIMATED PCT
VOLUME
POOL NAME CLASS NAME CAPACITY UTIL
STATUS
(MB)
------------------------ ----------- ---------- --------- ----- ------
-
-
-
/DATA/ADSMDATA.001 DISKPOOL DISK 2,047.0 28.5
ON-LINE
/DATA/ADSMDATA.002 DISKPOOL DISK 2,047.0 33.4
ON-LINE
002054 TAPETEST ADSM3590X 12,457.4 100.0 FULL
002056 TAPETEST ADSM3590X 30,720.0 0.0
FILLING
adsm>
Frederic Landreville email: landrefl AT yahoo DOT com
Lead Technical Analyst --- Yahoo Messenger Id: LANDREFL
R.J. Reynolds International B.V. (Hilversum) Geneva Branch
14, Chemin Rieu CH-1211 Geneva 17
Switzerland
Tel: +41-22-703-0323 Fax: +41-22-703-0324
"FAILURE IS NOT AN OPTION. It comes bundled with the software."
----- Original Message -----
From: "Walter Ridderhof" <Walter.Ridderhof AT MAIL.ING DOT NL>
To: <ADSM-L AT VM.MARIST DOT EDU>
> Sent: Friday, November 26, 1999 2:23 PM
> Subject: Re: AS/400 disables compression on Hardware
>
>
> > Etienne,
> >
> > would this have something to do with the end of tape problem on
> AS-400
> > connected drives ? The story is that volumes are only partially
> filled
> > because ADSM never receives an EOT signal from the AS-400. So the
> > filling is always a rough estimate based on the type of tape used.
> > You'd probably be able to increase the capacity by twiggling the
> > est-capacity parm's but I'm not sure of this.
> > What I do know is that a new (announced) AS-400 service level will
> fix
> > the problem.
> >
> >
> > regards Walter Ridderhof.
> >
> >
> > ______________________________ Reply Separator
> _________________________________
> > Subject: AS/400 disables compression on Hardware
> > Author: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> at INET-1
> > Date: 11/24/99 4:53 AM
> >
> >
> > Hi all,
> >
> > I have got a strange problem..
> >
> > Is there a Parameter that can be set on an ADSM server installed on an
> > AS/400 to disable or enable hardware compression ?
> > We are using a Magstar 3575 L18 (c-drives) and the maximum amount of
data
> > that will be stored on one tape is 4,999 MB. I know that the default on
a
> > Magstar 3575 C-drive is Compression on.... So there must be something on
> the
> > AS/400 Device driver or ADSM software that disables the Hardware
> > compression..
> >
> > Does anybody know how to enable the hardware compression on the AS/400
to
> > get the max out of the tapes being used ??
> >
> > Any help would be appreciated....
> >
> > Regards,
> >
> > Etienne
> > Touch The Progress b.v.
> >
> > "While you're reading this... who is managing your storage ??"
> >
> > ______________________________________________________
> > Get Your Private, Free Email at http://www.hotmail.com
>
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