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Disaster Recovery

Disaster Recovery is the planning for and creation of policies and procedures related to the resumption or continuation of an organization's functions following a catastrophic event. The term is most frequently used in relation to failure of networks, but DR preparations also include other business systems and personnel considerations.

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Mailbox Corruption is a nightmare every Exchange DBA wishes he never has. Recovering from it can be super-hectic if not entirely futile. And though techniques like the New-MailboxRepairRequest cmdlet have been designed to help with fixing minor corruptions within Exchange mailboxes.
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New feature and membership benefit!

New feature! Upgrade and increase expert visibility of your issues with Priority Questions.

Steps to fix error: “Couldn’t mount the database that you specified. Specified database: HU-DB; Error code: An Active Manager operation fail”
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Eseutil Hard Recovery is part of exchange tool and ensures Exchange mailbox data recovery when mailbox gets corrupt due to some problem on Exchange server.
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Stellar Exchange Toolkit: this 5 in 1 toolkit comes loaded with mega-software tool. Here’s an introduction to tools’ usage and advantages:
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Expert Comment

by:Maryta yllors
Comment Utility
This Exchange EDB Recovery software is outstanding and apt recovery utility which flawlessly and accurately repairs damaged, inaccessible or corrupt EDB database files of MS Exchange Server. This software supports all Exchange Server versions and repairs both STM and EDB files without losing its accuracy.Download the free trial version of Exchange EDB Recovery software, Free version is full feature application rather than to save recovered emails
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Steps to fix “Unable to mount database. (hr=0x80004005, ec=1108)”.
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Here in this article, you will get a step by step guidance on how to restore an Exchange database to a recovery database. Get a brief on Recovery Database and how it can be used to restore Exchange database in this section!
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Expert Comment

by:Maryta yllors
Comment Utility
Exchange Server Recovery boasts cutting-edge algorithm and has amazing user-friendly interface to provide quick and accurate EDB recovery. It is the all-in-one utility that recovers attachments, emails, calendars, contacts and tasks from inaccessible EDB files. It has a lot of facilities and features to enjoy. It supports different MS Exchange versions along with latest Windows OS and Exchange Server. It supports Microsoft Exchange Server 2016 / 2013 / 2010 / 2007 / 2003 / 2000 & 5.5. It is compatible with Windows Server 12, Vista, 7, 8.1 and 10.
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The main intent of this article is to make you aware of ‘Exchange fail to mount’ error, its effects, causes, and solution.
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Want to know how to use Exchange Server Eseutil command? Go through this article as it gives you the know-how.
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Are you an Exchange administrator employed with an organization? And, have you encountered a corrupt Exchange database due to which you are not able to open its EDB file. This article will explain all the steps to repair corrupt Exchange database.
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Expert Comment

by:Maryta yllors
Comment Utility
This Exchange Server Recovery is really an amazing tool, especially its deep scan mode. My EDB database files were severely corrupt. I couldn’t find a tool that can repair them. Thanks to your Exchange Server Recovery tool, I have all my important emails and attachments.Company offer Free Trial version of Exchange Server Recovery tool, it is full featured rather than to save mailbox.
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Expert Comment

by:Justin Morris
Comment Utility
Exchange Server Recovery for damaged EDB files. EDB to PST free tool helps you to recover mails, images, attachments, drafts, calendar, journals, appointments, tasks, notes, etc. from the damaged EDB files. Its ease of use GUI enables you to preview recovered mail items.

It's an EDB to PST Conversion utility which facilitates granular / brick-level Exchange Server Recovery with EDB to PST Conversion. EDB to PST Converter repairs corrupt or damaged Exchange EDB files and restores the mailboxes into Outlook PST file.
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Backups and Disaster RecoveryIn this post, we’ll look at strategies for backups and disaster recovery.
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Free Tool: Path Explorer
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Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

When speed and performance are vital to revenue, companies must have complete confidence in their cloud environment.
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Expert Comment

by:Mihai Corbuleac
Comment Utility
People should trust cloud with their businesses especially because its seems that Cloud is here to stay. Recently I read some interesting facts & figures and this industry is growing faster than expected.
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Many businesses neglect disaster recovery and treat it as an after-thought. I can tell you first hand that data will be lost, hard drives die, servers will be hacked, and careless (or malicious) employees can ruin your data.
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Acronis laptop
Employees depend heavily on their PCs, and new threats like ransomware make it even more critical to protect their important data.
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Acronis series
Learn how the use of a bunch of disparate tools requiring a lot of manual attention led to a series of unfortunate backup events for one company.
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Acronis Ransomware Trends
In 2017, ransomware will become so virulent and widespread that if you aren’t a victim yourself, you will know someone who is.
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Recovery
Facing problems with you memory card?
Cannot access your memory card?
All stored data, images, videos are lost?

If these are your questions...than this small article might help you out in retrieving your lost or inaccessible data.
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Expert Comment

by:Mahima Gupta
Comment Utility
Hi Virat!

Really very helpful article! As you are recommending your viewers to use third party tool.. so here i will vote for SysinfoTools Photo Recovery software. It is tried and tested by thousands of users.

Thanks
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If you ever consider purchasing any Daossoft Software Products, DON'T expect any meaningful support - This article should convince you why!
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We have come a long way with backup and data protection — from backing up to floppies, external drives, CDs, Blu-ray, flash drives, SSD drives, and now to the cloud.
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A Bare Metal Image backup allows for the restore of an entire system to a similar or dissimilar hardware. They are highly useful for migrations and disaster recovery. Bare Metal Image backups support Full and Incremental backups. Differential backups are not supported.
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Veeam Disaster Recovery in Microsoft Azure
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Veeam Disaster Recovery in Microsoft Azure

Veeam PN for Microsoft Azure is a FREE solution designed to simplify and automate the setup of a DR site in Microsoft Azure using lightweight software-defined networking. It reduces the complexity of VPN deployments and is designed for businesses of ALL sizes.

VM backups can be lost due to a number of reasons: accidental backup deletion, backup file corruption, disk failure, lost or stolen hardware, malicious attack, or due to some other undesired and unpredicted event. Thus, having more than one copy of your business-critical VM backups...
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First I will try to share a design of a Veeam Backup Infrastructure without Direct NFS Access backup.

Veeam-Backup-no-NFS.jpg
Note: Direct NFS Access backup transport mechanism is only available in Veeam v9

In above I try to design the Veeam Backup flow between iSCSI vs NFS.

In this case we did not had the proper configuration so that Direct NFS Access backup transport mechanism could work.

In this case we have a Veeam Backup Server and a Veeam Backup proxy.

Actual Veeam Backup Infrastructure:

192.100.27.x is iSCSI subnet - vLAN 56
192.128.23.x is the NFS Subnet vLAN 55

192.168.6.x(vLAN 25) is Management subnet. Used by Veeam Backup Server, vCenter and most of our ESXi hosts. But we still have some ESXi hosts that use our old management subnet 192.168.68.x
This is why we build a new Proxy with this subnet 192.68.68.x(vLAN 29)

Veeam Server I have(physical server):

1 interface(is 2 with NIC Teaming) for 192.168.6.x for Management Network.
1 Interface(also 2 with NIC Teaming) for 192.168.27.x using iSCSI initiator for the iSCSI connections.

Veeam Proxy(Virtual Machine):
1 interface with 192.168.68.x (vLAN 29) for Management Network.

This was the initial configuration and where Veeam Backup Server and Proxy never use the Direct NFS Access backup transport mechanism. All backups were running always with the option [nbd] for network block device (or network) mode, [hotadd] for virtual appliance mode.

Future Veeam Backup Infrastructure:
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Author Comment

by:Luciano Patrão
Comment Utility
Hi,

Mounting NFS in a Windows Server is outside of Veeam. Is not Veeam related task.

This is just adding/mounting a NFS Share into a Windows Server. That you should configure in your NAS and then mount in the Windows. Then you can use as a Veeam Backup Repository
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Author Comment

by:Luciano Patrão
Comment Utility
Hi,

I did also change both Designs, hope now have a better quality.
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Windows 10 Recovery Features
In this article we have discussed the manual scenarios to recover data from Windows 10 through some backup and recovery tools which are offered by it.
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Finally comes the third version of VMware Virtual SAN, whose name is 6.1, and comes loaded with new features many of which really are excellent and even surprising.
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From Coral's  "So You Want To Play With Computers" Series

Preface:
What follows is a tweaked reprint from 2005/06. This is a True Story. The names have been changed to protect the guilty. While this deals with a fairly simple, text file recovery, disk editors (hex editors) are Advanced Tools, and can do some amazing, and dangerous stuff. They give you "byte level access" to EVERYTHING written on your disk. You can do anything from fixing bad sector links, repairing bad file headers, to rebuilding Partition Tables, to tweaking programming code "on the fly".

If you mess up the wrong thing, you can count on reformatting your drive and rebuilding your OS from scratch. Don't say I didn't warn you.


On with the story...


It had been pointed out to me that I use a lot of slang, so.... for over a week, I had been putting together a glossary. After FINALLY getting most of what I could think of in it, I spent a couple of hours arranging and making pretty all the words and definitions I had just been jamming into a text file, as I thought of them.
 

Fight Night


As it was starting to get into the wee hours of the morning, and things had been going very nicely. I thought I would call it quits for the night. Oh, what the heck! I still had a half a cup of coffee left, so I figured I would just quickly run it through my new spell checker.

Pressed Control-Alt-F12. The little sweetheart popped right up and went through that text file like it …
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Expert Comment

by:Ravi Agrawal
Comment Utility
Very nice and a funny way to write up.
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Author Comment

by:_
Comment Utility
; )     Thanks.
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Throughout my career I’ve read many articles and performed due diligence on recovering VM’s that broke on the XenServer platform. From my experience and perspective it seems to be an ample amount of confusion as to a good base method to start with.  While there are many routes to recovery there isn’t any “Step One” way to accomplish this.  

I hope to explain a process that I have used many times with success.  The first step is to create a new disk, attach it to a new VM and instantiate the disk image on physical storage.  The simplistic way of doing this is to use VDI-create.  All commands given below are run from the XenServer command line interface.  VDI-create also accept the following parameters.

The first is name-label. This parameter is a readable name for the disk.

      ( name-label=name for the VDI )

The second parameter is type. This Setting sets the type of VDI to create.

      ( type=system | user | suspend | crashdump )

The third parameter is SR. This is the reference of the Storage Repository where the VM's data will be stored.

      ( VDI-create sr-uuid=UUID of the SR where you want to create the VDI )

The Fourth and final parameter is Virtual-size.  This sets the size of the virtual disk in bytes.  Break out your calculator.

      ( virtual-size=size of virtual disk )

      ( vdi-create sr-uuid=UUID of the SR name-label=name of the VDI type=system | user | suspend | crashdump virtual-size=size of virtual disk  )

VDI-create cause the XenServer …
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Expert Comment

by:Corsari
Comment Utility
Thank you so much for this tutorial.

I kindly ask you to complement it with this parallelism: on NTFS sometime some hdd' bad sectors "in the right place", might make to disappear one entire partition.

Really good (paid) data recovery programs will scan that drive and many times they will, not only find the missing partition, but also the entire tree with both directories and folders names and allow to get the data back.

Now translate this breakage to an Citrix XenServer where e.g. on one single 1TB drive, are installed both XenServer (first 4GB more or less + swap) and where the rest of the 1TB drive has been assigned as SR. Well, on that SR is e.g. one single VM guest.

I have one situation where I find the first partition, the Citrix linux partition and tree, but the rest of the disk is seen as raw space.

Using one of those capable data recovery program (able to support linux filesystems), what do you expect to find/search for?
Should that software to support/recognize LVM/LVM2? And what if none of them supports LVM/LVM2?
(BTW, Citrix uses LVM or LVM2?

Thank you for hinting

Francis
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Author Comment

by:Larrymey Hawkins
Comment Utility
Is the VHD file accessible across the SR? If so can it be mounted by another vm?
IF so re mount in a new vm and run recovery software across the mounted drive as you would on any normal server.

If not the external recovery I have have ran has been with Kernel Linux which Works on LVM and LVM2.

http://www.datarecoverylinux.net/lvm-recovery.html

Alternatively I have also used  Knoppix 5.1 LiveCD and ran the standard Raid and volume recovery procedures,  

command dd to extract the first part of the partition and write it to a text file

Create the file /etc/lvm/backup/VolGroup00:

vi /etc/lvm/backup/VolGroup00

Re write config data.

start LVM

/etc/init.d/lvm start

Read in the volume

vgscan
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Disaster Recovery

Disaster Recovery is the planning for and creation of policies and procedures related to the resumption or continuation of an organization's functions following a catastrophic event. The term is most frequently used in relation to failure of networks, but DR preparations also include other business systems and personnel considerations.

Vendor Experts

Naveen SharmaKernel Data Recovery Learn more about Kernel Data Recovery
Sandeep KumarKernel Data Recovery Learn more about Kernel Data Recovery