The announced requirement indicates it is only associated with the
Processor hardware:
* z13, EC12 or BC13
* zEDC Express (min of two recommended)
* all systems accessing compressed data have zEDC Express (recommended)
* z/OS V2.1 or later w zEDC feature & PTFs
It mentions there is minimal CPU overhead, which implies there may still
be some compression overhead versus no compression, but much less than
before and offset by lower CPU for I/O or other moving of compressed data.
One chart looked like compression still requires BSAM/QSAM files to be
Extended Format files, which used to exclude hardware compression for
PDS/PDSE files. Any one know for sure if that is still the case? One
good argument, besides prior CPU overhead, for keeping the old ISPF
PACKED data support was that hardware compression still didn't support
PDS/PDSE libraries. It would sure be nice if large source libraries
could finally get the benefit of hardware compression as well.
Obviously one would want to be sure your DR site also had required
supporting hardware.
Joel C. Ewing
On 01/27/2016 09:53 AM, Lizette Koehler wrote:
> Is there any hardware dependencies, like IBM Hardware only or can it be on
> any vendor DASD hardware?
>
> Lizette
>
>
>> -----Original Message-----
>> From: IBM Mainframe Discussion List [mailto:[email protected]] On
>> Behalf Of Jackson, Robin W. Contractor
>> Sent: Wednesday, January 27, 2016 8:48 AM
>> To: [email protected]
>> Subject: Re: zEDC
>>
>> I am a proponent of zEDC and would recommend to management enabling this
>> feature, (which is presently configured 'FEATURENAME(zEDC) STATE(DISABLED)'
>> in IFAPRD00.
>>
>> My question relative to this issue would be my ability to present to
>> management a position that would demonstrate the comparison cost savings
>> relative to the 'zEDC' cost(s).
>>
>> Any suggestions? I have considered running this by Cheryl Watson.
>>
>> Thanks,
>>
>> Rob Jackson
>> [email protected]
>> [email protected]
>> Office: 1-877-897-0598 ext. 10462
>> Cell: (615) 689-1435
>>
>>
>> -----Original Message-----
>> From: IBM Mainframe Discussion List [mailto:[email protected]] On
>> Behalf Of Scott Barry
>> Sent: Monday, January 25, 2016 11:09 AM
>> To: [email protected]
>> Subject: Re: zEDC
>>
>> Yes, a client we support is seeing very positive results, exploiting zEDC
>> data-compression (up to 8-to-1) with SMF LOGSTREAMs and sequential datasets;
>> just now starting to investigate DFHSM opportunities. Important to stay
>> current on IBM z/OS maintenance -- most recent was a nagging S002-F6
>> intermittent ABEND which was corrected with maintenance.
>>
>> Scott Barry
>> SBBWorks, Inc.
>>
>>
>> On Fri, 22 Jan 2016 20:38:50 +0000, Phillips, Thomas
>> <[email protected]> wrote:
>>
>>> Is anyone using the new zEDC cards in a production environment? We are
>> running z13's with z/OS 2.1.
>>> Feel free to contact me offline, if you'd like.
>>>
>>> Thanks,
>>> Tom Phillips
>>> Principal Financial Group
>>>
--
Joel C. Ewing, Bentonville, AR [email protected]
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