How do i use flashcopy after i've installed it?

Posted on 2009-04-30
Medium Priority
Last Modified: 2013-12-01
I have created a flashcopy logical drive from a logical drive from the same SAN raid, i have defined and mapped it to the same server as the logical drive. How does it work from there? IBM instructions confuse me. They are too general.
Question by:PEI_IT

Expert Comment

ID: 24276945
FlashCopy and VolumeCopy, are special add-on on a DS4000 storage.

The VolumeCopy is ehough clear, copies (duplicates) logical volumes.
You can use it by scripts or in interactive way.
Suppose you have to copy a big LV: you have to stop users, say them "don't save any files", copy, and announce "done" you can write! Your copy will be consistent.

I was joking: probably it is impossible to do this, you can have hundreds of users,
world wide, and every day this will be fastidious! FlashCopy helps you on this.
(sounds well, I can propose this at IBM as slogan).

At the moment you start FlashCopy, this "flashes", takes a picture of the LV:
users can continue to save their Word files, or better DB can continue to save records: what done after FlashCopy will not be saved.
On the flashED copy, you can backup data (by another host) and when finished,
release it. While FlashCopy is active, the storage continues to save the data on the original LV, but before to overwrite areas, copies original in flashed volume.

If you need just for backup, FlashCopy is enough.

If you want that the copy remains on the storage, you need just VolumeCopy.

To avoid to stop i/o while VolumeCopy goes, you need both:
FlashCopy a LV, and VolumeCopy the flashed one.

You can install basic part of storage manager on the Backup server, and make tasks that, using backup commands and DS4000 scripts do:

enable Flashcopy
make Backup
remove FlashCopy

I hope have been clear, also if just theoretical.
I avoided to pass you links, becouse i think you have your pc full of them.
However for any, I am here.

LVL 17

Accepted Solution

Gerald Connolly earned 2000 total points
ID: 24278261

Featured Post

Free recovery tool for Microsoft Active Directory

Veeam Explorer for Microsoft Active Directory provides fast and reliable object-level recovery for Active Directory from a single-pass, agentless backup or storage snapshot — without the need to restore an entire virtual machine or use third-party tools.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Compliance and data security require steps be taken to prevent unauthorized users from copying data.  Here's one method to prevent data theft via USB drives (and writable optical media).
Article by: evilrix
Looking for a way to avoid searching through large data sets for data that doesn't exist? A Bloom Filter might be what you need. This data structure is a probabilistic filter that allows you to avoid unnecessary searches when you know the data defin…
This tutorial will walk an individual through the process of configuring basic necessities in order to use the 2010 version of Data Protection Manager. These include storage, agents, and protection jobs. Launch Data Protection Manager from the deskt…
Despite its rising prevalence in the business world, "the cloud" is still misunderstood. Some companies still believe common misconceptions about lack of security in cloud solutions and many misuses of cloud storage options still occur every day. …
Suggested Courses

850 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question