RE: SAVLIB to FTP where files > 1tb

Thank you this is a very very interesting article and that is priceless
information

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Mark S. Waterbury
Sent: 04 April 2009 15:20
To: Midrange Systems Technical Discussion
Subject: Re: SAVLIB to FTP where files > 1tb

Hi, Michael:

Also, have you seen this yet?

http://shalomcarmel.blogspot.com/

The first entry in this blog (at least, for now) is called "Backing up
to the cloud." ...

An interesting idea ...

Mark

Michael Bolland wrote:
Hey,

That's ok! We have actually tried Laservault and it was ... flakey...

to

say the least, but this is the kind of product we would be looking for
if it wasn't so limited on speed and reliability.

Cheers

Mike

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Mark S.

Waterbury

Sent: 03 April 2009 19:09
To: Midrange Systems Technical Discussion
Subject: Re: SAVLIB to FTP where files > 1tb

Hi, Michael:

Sorry, I guess I misunderstood your requirements. My bad. ...

(Also apologize for the duplicate post.)

You might want to look at a product like this one:

http://www.laservaultbackup.com/
and
http://www.laservaultbackup.com/index.php?q=node/6
and
http://www.laservaultbackup.com/index.php?q=node/11

Of course, you could also "roll your own" version of the above, with
save files, then FTP them off to a PC server with large, inexpensive
disks.

HTH,

Mark

> Michael Bolland wrote:

Hi Mark,

That sounds very similar to what we have MIMIX doing at the moment -

we

currently have two boxes Live and Backup - the live system is

replicated

to Backup using MIMIXHA and then we currently backup the backup

system

every night (BRMS option 20) and finally a BRMS Option 21 on Sunday.

We're using probably at least 40 3590's a night and even more on a

full

backup.

What I want to do now is replace the tape backups of the backup

system

with an FTP server (which would be located externally to our business
and wouldn't necessarily run AS400 (probably not if we need cheap

disks)

and would no doubt be connected on it's own gigabit crossover cable.

I will definitely look into some journaling scenarios as it might be

an

answer to a problem but it does sound to me like you're asking me to

buy

another ISeries (and buy more disks for that system which is one of

the

biggest issues atm - especially for backups).

Regards

Mike


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Mark S.

Waterbury

Sent: 03 April 2009 18:19
To: Midrange Systems Technical Discussion
Subject: Re: SAVLIB to FTP where files > 1tb

Hi, Michael:

If your files are that large, why are you copying the entire file(s)
over to another system, over and over again? Is this for "disaster
recovery" purposes?

Investigate the remote Journaling support in i5/OS -- once you

establish

an identical copy of the file(s) on the back-up system, you journal

the

file(s) on the primary system to the remote journal, and the changes

are

automatically sent to the back-up system (via TCP/IP) and

automatically

applied to the copy of the file(s) on the remote system. So, you

send

only the changes, not the whole file(s).

Or, you could "roll your own" approach to sending only the changes;
instead of remote journaling, journal the files to a local journal

and

journal receiver, and then periodically, (perhaps once a day), issue

the

CHGJRN command to start a new journal receiver, then save the

existing

journal receivers into a save file, send the save file over to the
back-up system, then restore the journal receivers and issue the
APYJRNCHG command to apply the changes to the copy of the database
file(s) on the back-up system. (A kind of "poor man's High
Availability.) You could also write a program that reads the journal

entries on the back-up system, after restore, and then applies the
changes directly.

Otherwise, you will be pumping terabytes of essentially the same data

across the communications channel, over and over again.... :-o

Consider

the impact on other network traffic and bandwidth issues, etc..

HTH,

Mark S. Waterbury

> Michael Bolland wrote:

Having some issues here,

I would love to FTP my data on a nightly basis to another FTP server

but

this doesn't seem to be possible...

It appears that this is no issue what so ever if you are able to

backup

to a SAV file and then FTP the sav file over.

Unfortunately my files are > 1tb and so I need double the amount of

disk

space to do the backup.

My questions:

1) Why do I need to dupe my data to achieve this, why can't I stream

it

straight over ftp?

2) Can I somehow split it up into many smaller files that can be

sent

individually as the backup is processing and then cleared down?

3) How can I get cheap temporary disk space (preferably something

like

IDE?) that's not going to cost me an arm and a leg just for this?

Cheers guys, appreciate your time

Mike

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