Richard Pinion asked:
>Can a ZFS dataset be defined with the DATACLAS zEDC compression
>option?
Then later added:
>We're at z/OS 2.2, hoping to go to 2.4 soon, so zfsadm compress
>isn't available.
IBM introduced zEDC compression (and encryption) for zFS in z/OS 2.3. When
you get upgraded to at
W dniu 08.01.2021 o 17:46, Paul Gilmartin pisze:
On Fri, 8 Jan 2021 16:07:31 +, Seymour J Metz wrote:
A zFS is stored in a VSAM linear data set. I found "Only extended-format
key-sequenced data sets can be compressed." at
We're at z/OS 2.2, hoping to go to 2.4 soon, so zfsadm compress isn't available.
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
Mark Jacobs
Sent: Friday, January 8, 2021 11:47 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: ZFS using zEDC hardware compression
> From: IBM Mainframe Discussion List IBM-MAIN@LISTSERV.UA.EDU On Behalf Of
> Seymour J Metz
>
> Sent: Friday, January 8, 2021 11:08 AM
>
> To: IBM-MAIN@LISTSERV.UA.EDU
>
> Subject: Re: ZFS using zEDC hardware compression
>
> [External Email. Exercise caution when clickin
On Fri, 8 Jan 2021 16:07:31 +, Seymour J Metz wrote:
>A zFS is stored in a VSAM linear data set. I found "Only extended-format
>key-sequenced data sets can be compressed." at
>https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.idad400/compdta.htm
>
This is a
, January 8, 2021 11:08 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: ZFS using zEDC hardware compression
[External Email. Exercise caution when clicking links or opening attachments.]
A zFS is stored in a VSAM linear data set. I found "Only extended-format
key-sequenced data sets can be compr
That's a definitive answer, thanks.
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
Seymour J Metz
Sent: Friday, January 8, 2021 11:08 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: ZFS using zEDC hardware compression
[External Email. Exercise caution when clicking
A zFS is stored in a VSAM linear data set. I found "Only extended-format
key-sequenced data sets can be compressed." at
https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.idad400/compdta.htm
--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
W dniu 08.01.2021 o 16:00, PINION, RICHARD W. pisze:
Can a ZFS dataset be defined with the DATACLAS zEDC compression option? I'm
looking for a way
to reduce the size of our SMPNTS datasets.
I guess YES.
However ...just try it. Create some test ZFS with copression and put
some txt files
I'm not sure about that at define time (might work, might not), but the zfsadm
compress command will use zEDC compression on an existing zFS dataset.
Mark Jacobs
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