Hi Phil,
Since you asked for bad backup stories ...
In the mid '80s, I was working at the Canadian head office of a
multinational food company.
We were using 6250 BPI Tapes on STK 4520 drives. My boss, who also
managed operations,
decided that when tapes would get physical errors, the operator
Anything I write for a client, I take a backup home, even though some HR
folks may consider that a violation of confidentiality or copyright or
something so I don't ever do it and I never said I did and anyway you can't
prove nuthin'. But if it gets destroyed at work, let me know; I have a very
Since we're swapping bad backup stories.
I'm at a small mainframe vendor, mid-90s. Data center manager quits with no
notice because boy genius sociopath CFO tell him at the last minute that he
can't take long-planned, prepaid vacation trip because CFO wants him there
for something stupid. This
A client I am working with uses Safeguarded Copy, a feature in IBM Copy
Services Manager on the DS8K SANS
On Fri, Mar 10, 2023, 12:44 PM Attila Fogarasi wrote:
> Also there are various solutions for immutable backups of z/OS data, which
> would protect you against ransomware.
>
> On Fri, Mar 3,
In the early 70's I had a client -- large insurance company -- that was running
DOS on a 360/50. At some point they lost a 2314 volume. When they restored from
backup the restored volume was unusable. Investigation revealed that for some
reason lost in the fog of time the sysprog who had set up
On Sat, 11 Mar 2023 18:08:56 +, Colin Paice wrote:
>
>During my tests, I had a userid without an OMVS segment - and could get the
>right return code.
>If I then logon the userid, I get an OMVS segment allocated because my
>system is set up for this.
>
>Is there any way of saying do *not
If you want to prevent certain users from being able to access z/OS UNIX
services, define an OMVS segment with no UID for those users. This prevents
their user IDs from being automatically assigned a UID. When they attempt
to use a z/OS UNIX service, the dub will fail, and a daemon will be unable
I'm looking into pthread_security_np to change my userid to become another
id.
During my tests, I had a userid without an OMVS segment - and could get the
right return code.
If I then logon the userid, I get an OMVS segment allocated because my
system is set up for this.
Is there any way of
There was a magazine article maybe in the 90's that appeared to be a
news report about a company that went through something like you
described - systems down, won't IPL, backup disks corrupted, backup
tapes deleted or corrupted, even documentation gone I think. Then about
the 3rd paragraph
On Sat, 11 Mar 2023 00:03:06 -0800, Leonard D Woren wrote:
>If some particular instruction set feature is installed, the
>definition of ASI/AGSI is enhanced to serialize the update, making it
>a simpler solution than a CDS loop or PLO.
>
>In some performance testing a while back on a z14 or z15
If some particular instruction set feature is installed, the
definition of ASI/AGSI is enhanced to serialize the update, making it
a simpler solution than a CDS loop or PLO.
In some performance testing a while back on a z14 or z15 which I think
had the above serialization feature, the
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