I have asked the same question for years.
What you want/need is FBA DASD. That means 3310 or 3370 or 9336 or
similar (if you're on FICON). But FBA is the norm for FC.
So ask for a volume that is available simultaneously via FC and via
FICON (but 9336 et al, rather than 3390).
Last time I chased this, it wasn't the storage vendors, but it was my
own storage team, who didn't "get it"*.
Gimme a volume (or a dozen) which are 9336 on the "IBM" side and same
bytes on the FC side. We could then treat such vols as SCSI (FC) to
Linux or Slolaris or AIX or HP or even Windoze while using them as good
ole 9336 when cabled up to our Z.
Now ... EDEV on z/VM does this for you. The backing store speaks FC
(same as the "open systems"), and that consistency is less bizarre for
your storage team.
Also note that FBA on emulators (zPDT, Hercules, P/390 card) gives the
desired effect. I've been using that for decades. Works!
The bytes in the "host" file (or partition or LV) are one-for-one the
same as the bytes in the emulated FBA device.
Combine this with such hacks as offset zero FS (that is, FS starts at
block zero, discarding the partition table) and you have FANTASTIC
recovery means: just mount the host file to the host filesystem tree and
go to town. Ahhh...
*no offense to storage engineers. I simply realize the request was
taking my people away from their normal day-to-day.
-- R; <><
On 1/8/25 7:05 AM, Tommy Tsui wrote:
Hi all,
Is there any storage vendor provide a share volume which can mount from
mainframe and open platform? I remember HDS has a repaidX disk which can
mount between mainframe and open platform,
Thanks for sharing
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
--
-- R; <><
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
