× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. MIDRANGE-L
  3. November 2013

Re: Back ups with High Availability Web Server

Paul,

I've only seen it in cases where a save is either saving files in a
directory, or the tape is in MSGW status while saving a file in a
directory.

Other applications seemed to be locked out from any directory or file in
the path. I've seen it many times with our software that works with the
IFS a lot for stream files.

When I get the call with the locking error the first questions I ask are,
"when does it happen" and "when do you do backups" and "is there a MSGW on
a save right now"?

Normally the answers are "early in the morning", "they run all night into
the morning", and "oops, yes". :)

Brad


On Wed, Nov 13, 2013 at 10:32 AM, Steinmetz, Paul <PSteinmetz@xxxxxxxxxx>wrote:

Brad,

I'd like to confirm something you said.

First, when saving an IFS object, the entire directory is locked until the
save is complete.
So if an application was trying to access that same directory, (but not
necessarily the same object), that app would probably fail because of a
lock.

Secondly, if an app has an IFS object "in use" then the save tries to save
that directory and object, only that "locked" object will be skipped, but
the rest of the directory would be saved.

Is this correct?

I have issues with both, I am trying to improve the save, but also trying
to guarantee that the save will not cause an app to fail.

Paul



-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:
midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Bradley Stone
Sent: Tuesday, November 12, 2013 11:10 PM
To: Midrange Systems Technical Discussion
Subject: Re: Back ups with High Availability Web Server

We are talking about the majority of the data, and what's taking so long,
are the IFS objects. Not really any data in QSYS.LIB.

I only mention this because there seems to be a little confusion, and I've
experienced in the past when they're saving an IFS object, that entire
directory is locked until it's done. And locked down hard. :)

Brad


On Tue, Nov 12, 2013 at 7:04 PM, Charles Wilt <charles.wilt@xxxxxxxxx
wrote:

I don't see much difference between VSS and IBM i's Save While Active...

Except that SWA has been available since at least 1997 or
1996...probably longer.

The problem is too many shops don't bother to use it.

Charles


On Tue, Nov 12, 2013 at 4:25 PM, Matt Olson <Matt.Olson@xxxxxxxx> wrote:

First question is have you ever restored one of these? How does
the operating system come up when you do that?

Yes, comes up in recovery mode the first bootup, subsequent bootups
are normal.

Second is what are you doing with those servers? Are these hosting
large
Oracle or MSSQL Databases or are they file and print servers? Or are
they just AD members that are used for remote desktop for example.

100GB database servers, print servers, file servers, web servers,
you
name
it. Everything in windows these days have volume shadow copy
providers.

IBM i really needs something like Windows volume shadow copy service
so you can achieve 100% up time during backups.

This is the only reason why I see AS400 shops are down periodically,
had the database been hosted on one of a windows box we would have
much
better
uptime.

-----Original Message-----
From: DrFranken [mailto:midrange@xxxxxxxxxxxx]
Sent: Tuesday, November 12, 2013 3:21 PM
To: Midrange Systems Technical Discussion
Subject: Re: Back ups with High Availability Web Server

Matt,

First question is have you ever restored one of these? How does
the operating system come up when you do that?

Second is what are you doing with those servers? Are these hosting
large
Oracle or MSSQL Databases or are they file and print servers? Or are
they just AD members that are used for remote desktop for example.

There is a large difference between a transaction oriented system
and a system hosting many flat (or 'stream') files.

- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 11/12/2013 4:06 PM, Matt Olson wrote:

IBM really needs to fix this issue. Put in a Design Change
Request to
allow for online backups like you can do with Windows. We do full
(bare
metal) backups of our windows machines all the time, no downtime
required.

--
This is the Midrange Systems Technical Discussion (MIDRANGE-L)
mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To
subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please
take a moment to review the archives at
http://archive.midrange.com/midrange-l.


--
This is the Midrange Systems Technical Discussion (MIDRANGE-L)
mailing
list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please
take a moment to review the archives at
http://archive.midrange.com/midrange-l.


--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take
a moment to review the archives at
http://archive.midrange.com/midrange-l.


--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a
moment to review the archives at http://archive.midrange.com/midrange-l.

--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.



As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow-Ups:
Replies:
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.