I have been looking around on various IBM websites trying to find the IBM
versions of the normal python language and python standard library
documentation to answer a few z/OS-specific python questions.
1. Does the z/OS implementation of the python language standard function
"open()"
Yes, I concur. Not the same, but somewhat alike.
IDRC can also be software based. I found the same compaction algorithm
as IDRC in z/VSE one time. I think it was in Power Pnet, but it's been
awhile.
Tony Thigpen
Harry Wahl wrote on 7/30/22 14:06:
Tony,a
IDRC exploits the nature of IDRC
Tony,
Compression (as in ZIP) and compaction (as in IDRC tapes) are not the same
process.
IDRC exploits the nature of IDRC compatible physical tape cartridges by writing
everything using the cartridge's internal optimal physical block size. This is
done by the cartridge drive's controller.
Yeah, there is no compression at all in the native AWS format. If your VTA
won't do HET or something similar, then you're stuck with AWS and then
compressing after the fact.
On Sat, Jul 30, 2022 at 11:45 AM Tony Thigpen wrote:
> I am working with my VTA vendor to reduce storage usage on the
>
I am working with my VTA vendor to reduce storage usage on the
appliance. Currently, they can compress after the unmount and uncompress
before the mount. But, this takes time, especially when servicing the
mount request if the tape is large.
I was thinking that doing an IDRC implementation,
