Article <v5i2el$2be69$1@dont-email.me>

Warning: mysqli::__construct(): (HY000/1203): User howardkn already has more than 'max_user_connections' active connections in D:\Inetpub\vhosts\howardknight.net\al.howardknight.net\includes\artfuncs.php on line 21
Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connections
Warning: mysqli::query(): Couldn't fetch mysqli in D:\Inetpub\vhosts\howardknight.net\al.howardknight.net\index.php on line 66
Article <v5i2el$2be69$1@dont-email.me>

Deutsch English Français Italiano

<v5i2el$2be69$1@dont-email.me>

View for Bookmarking (what is this?)
Look up another Usenet article

Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: "Stephen Fuld" <SFuld@alumni.cmu.edu.invalid>
Newsgroups: comp.arch
Subject: Re: ancient OS history, ARM is sort of channeling the IBM 360
Date: Wed, 26 Jun 2024 21:50:13 -0000 (UTC)
Organization: A noiseless patient Spider
Lines: 23
Message-ID: <v5i2el$2be69$1@dont-email.me>
References: <s7r87j1c3u6mim0db3ccbdvknvtjr4anu3@4ax.com> <v5g8u8$1l3le$1@dont-email.me> <v5gagi$20gjg$1@dont-email.me> <v5hfdv$278m2$1@dont-email.me> <v5hrg6$18o8$1@gal.iecc.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
Injection-Date: Wed, 26 Jun 2024 23:50:13 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="66649ab155d410eb2cdd08deb22663c0";
	logging-data="2472137"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/5OT46qz8XnzWNMA62XVE7QJUCmJqxNqE="
User-Agent: XanaNews/1.21-f3fb89f (x86; Portable ISpell)
Cancel-Lock: sha1:sDsND45i3ghbivfvsReCul8/pwM=
Bytes: 1793

John Levine wrote:

> According to Stephen Fuld <SFuld@alumni.cmu.edu.invalid>:
> > understand why not for writes.  The no crossing block boundries is a
> > side effect of fixed block disks.  This couldn't happen in OS/360
> > with CKD disks.
> 
> Actually, it did. OS had a Variable Block Spanned record format that
> could split a logical record over several physical disk blocks.  I
> don't think it was very widely used, but it's still there in z/OS:
> 
>
https://www.ibm.com/docs/en/zos/3.1.0?topic=SSLTBW_3.1.0/com.ibm.zos.v3r1.cbcpx01/spanned.html


Thanks John.  I had never heard about that.




-- 
 - Stephen Fuld 
(e-mail address disguised to prevent spam)