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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**** Azure Site Recovery - HyperV To Azure Replication ****

I have some HyperV VMs that are replicating to Azure by using Azure Site Recovery technology.

All of them were replicating just fine but, three of them failed recently, so I went to the HyperV host, went to the VHD folder and noticed a lot of large HRL files in there.

My question is, is it safe to delete those large HRL files?

Thanks in advance,

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I recently resigned from my last company and have been receiving calls for new employment; however, I'm a bit confused as to how to address why I left my last company without sounding "bad".
please guide in DR scenerio, what if source host is hyper-v environmen and destination is vmware. how  replication will work in this scenerio ?
I have a hard drive that has been formatted by mistke and need to recover data. I am able to run a scan using EaseUS Data Recovery. I can see the entire folder structure, etc but no files. I have since been informed that the drive was encrypted using Symantec Endpoint Encryption. Is this the reason no files are visible? Would have assumed if it was encrypted I would not be able to see folder structure, etc?

I would like to know how to unencrypte the drive so i can run another scan to see if I can recover this data. Any help is appreciated. Let me know if you need any additional information.
I have a customer with 4 Servers and I am responsible for the backups. I typically use Cloudberry labs backup software and back data up files and SQL to Backblaze for cloud and locally to some sort of SSD. I also setup email notifications.....I generally feel pretty good about the backup plans and I test recovery from time to time.

However, I am having trouble backing up these other servers over the network..lots of permission issues. Plus, there are so many files and SQL DBs to backup scheduling is tight.

Does anyone else backup up over the network or have backup software running on each server?
What are other Managed IT providers recommending for onsite BDR's? Currently using StorageCraft and happy with their software\services. They've proven themselves over the years unlike other backup solutions. My question is I have old BDR's that I'm getting ready to replace with new PowerEdge Servers. What specs do you recommend for an onsite BDR? For sake of this discussion client is running a Server 2016 standard with two VM's, one PDC and another Exchange.
We are changing backup software. Coming off of StorageCraft ShadowProtect.

If i archive the backup files somewhere, is there any way to access them again without an active storagecraft license?

I see that storagecraft gives a free 30 day trial which could be an option in a bind,  but is there any other process for restoring from or mounting these backup (.spf and .spi) files without storagecraft software?

A script that will backup MongoDB:-

1. Backup the db at 00:01 (cron job..)
2. Compress the backup file
3. Remove backups after 2 days
4. Alert by email of backups successful or fail

A script that will be used to restore the MongoDB
I've recovery my windows OS then i found mysql folder in Windows.old folder.  and MySQL unistalled or windows restored to previous version before MySQL Installed.
I try to make Solution as follows:
1- I've used New PC with Mysql .
2- stop Mysql Services.
3- replace Data folder.
4- When try to start MySQL again error 1067 is appear.

how can i recovery data from ibdata1 file and *.frm
My boss is unimpressed by the fact that AlwaysOn Availability Groups on our non-clustered environment can only do a Manual Failover in the event of disaster.

I have been tasked with redesigning our setup to support Automatic Failover, and everyone knows you need a clustered environment to do that (right?)

However, before even getting down to the details, Automatic Failover requires that the Availability Group be set up with Synchronous Commit, which is obvious, but in the testing phase of our current AG-setup, we discovered that the performance (responsiveness, readiness) of our instances were dramatically slower on Synchronous Commit vs Asynchronous Commit.

To please my boss, I would have to set up our AG to have the responsiveness of Asynchronous Commit while having the high availability of Automatic Failover.  Is there any hope for me?

Our Environment:

Intel Xeon 2643 v2 x 2
1.50 TB RAM
All-flash Samsung Enterprise SSD storage in RAID 10
Windows Server 2016 Datacenter
SQL Server 2017 Enterprise
Mellanox Dual 40G NIC

Cisco Nexus 3132X 40G (access layer)

A typical database in our environment is 300GB-1TB, and tables can easily have 10 million records.
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Server 2016 - Patches up to date - Running as a Workgroup.

I use a cloud backup for my daily backup. I am getting my backup daily, but recently, I started getting a notification of a warning.

The warning is that the software was unable to take a Snapshot (Shadow Copy) the warning states that the service does not exist.

I looked in services.msc and sure enough there is no Volume Shadow Copy service.

I am looking for a way to reinstall VSS without rebuilding the server.

Thank you

Andy Coyle (andy@adillo.com)
Hi: I have a problem with backing up and restoring protection groups in System Center DPM 2016 - 1801. I have a Dell R730xd server  ( windows  2016 )  attached to a Dell TL4000 Tape library ) . I get this error message: The operation failed because of a protection agent failure. ID: 998 Details: Access is denied (0x80070005)

Assistance in backing up MongoDB databases:-

I am new to MongoDB and need some assistance in backing up databases by writing a script:-

a) Backup MongoDB at 00:01 kept for 7 days and are removed.  
b) An e-mail notification is sent to state that backups are completed or failed.
c) Is there a way to backup MongoDB i.e. transaction log backups or similar method, so 'point-in-time' restores can be done
When I use Acronis True Image to restore a disk image to dissimilar hardware, I cannot see the destination disk, although it is visible in the previous screen, where I choose the item to be restored.
I am working on our MS domain Disaster Recovery plan, and want to ensure our MS server 2012 CA causes minimal initial issues when it's not available if DR scenario occurs. Working off of a week recovery time for our primary datacenter to come back up (may be optimistic, but i want to at least give myself time to worry about more important business impacting items for the first few days), i see my CRL for my main domain cert from our CA currently has a validity time of 24hrs. I want to increase that to 1 week to give us time to worry about other issues instead of the internal CA server at first.

i see this URL with PS commands and want to extend the URL from 24hrs to 7 days so it will be almost a week before servers/apps start complaining about not having the CA available.


is this the right way to do it? am i wrong in this thought? if this line of thinking is correct, what would the command be if the CRL cert name was DomainCertificate?
Dear Experts,

I need your help urgently. We have a VM is hosted on remote location that servers as a EXCHANGE SERVER 2016. Today suddenly we  unable to send and receive the email, it was pining but throwing this error "Outlook unable to connect 0x80040115". Then I restart it but the server getting slow takes 15-20 Minutes to restart. And still the same problem was there then I did soft restart from open stack interface. After that we it not even ping, showing "Destination host unreachable". I called the company where is located they are working on it.  Its a high production environment. And I joined it new.
The server has C:\ drive with more than 50 GB space[yesterday i deleted IIS logs to save the space]  and D:\ is containing transactions logs files and Database of exchange server 800 GB.

My worry is the(Database, its a separate drive i think) D:\ will ok?
Should I setup new exchange server or wait for that guys who are working on it. But i have doubt they will be able to fix it.
What would be the best practice in this situation.
Pls guys help me out.

Hello Experts, I need to setup SQL 2016 mirroring and Exchange DAG 2016 Disaster Recovery servers for one of our clients and the plan is to setup remote servers over VPN

Before deploying the DR server I want to do some testing but I am having issues getting SQL Mirroring and Exchange DAG working over VPN.

I am using a Cisco 891F for both sites and I am able ping all servers with each other between both sites and when I do a port scan at both ends the following ports show as open 53, 88, 135, 139, ,389, 445, 464, 593, 636, 3268, 3269, 3389, 5985, 9389, 49666-49668 and 52124
Both sites have a fibre connection and I can access any shares between the servers and when I do a speed test on both sites I get an average of 40Mbps download and 20Mbps upload

The problems that I am having are...

I can setup SQL mirroring with or without a witness server over the VPN and setup finishes successfully and Mirroring Site / Witness connection is stable, however when one of the servers reboots the connection does not seem to recover unless I remove the mirroring and set it up again, and sometimes I have to try several attempts before it works but a slight disruption in the network stops it from working.

I was able to setup 2nd Exchange server over VPN after several attempts but unable to get the DAG working? the servers are able to ping each other and access shares but unable to see each other trough the DAG setup, the databases show status unknown and Bad Copy Count = 1, …
i am preparing an disaster recovery plan for an oracle database that i inherited management of when we took of maintaining the web application it is used for.

The production database is over 10 years old running 10.2.0 on a windows 2003 server and i started running a backup using RMAN every night as there no backups were being done prior to inheriting the database.

I have created a 2008 server virtual machine running 11.2.0 as i thought such a big jump for 10.2.0 to 18c would be to problematic.

So far i have restored the control file, restored the data files from backupset and been able to mount the database.

What i'm having an issue with is i have to use start upgrade as the database won't start without the upgrade option.

I have tried running the upgrade scripts and have tried using the database upgrade assistant but i get the following error.

ora-04023 Object SYS.Standard could not be validated or authorized.

I tried a suggested fix "alter system flush shared_pool;" but to no avail it didn't fix the problem.

The previous manager didn't really know what they were doing and cancelled the oracle support contract 9 years ago.

The manager is reluctant to pay the thousands of dollars to reinstate a support contract at this point as they were lucky enough to get by with no support or backups for almost a decade so i can't oracle support at this point and seeing as i'm just preparing a disaster recovery plan i doubt this would be covered by the …
Hi Everyone,

Last ditch effort here, I think I tried everything but I want to be sure I don't miss any ideas.

I was given a USB external hard drive that isn't detecting. When you hook up the power I think I can feel the drive spin up but after that, nothing. No USB device is detected in Windows 10. So I took the case apart and removed the HD. It's a 1TB Western Digital Black, manufacture date August 2010. I connected it to power and a SATA cable. Drive spins up then down, and seems to do that ad-infenitum.

I think he's dead, Jim. Unless there are other ideas? I already know there is no interest it taking it for professional recovery or trying to get the platters into another shell. I didn't try any sort of drive recovery tools so far, but given the fact that it isn't detecting in Windows at all (nothing new in device manager) is there any chance those will work?
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Hi Everyone

What is the best DR plan using 2 Readynas in a VMware/Veeam environment?

I have a VMware 6.5 box running 2 VM's.  I use veeam replication to replicate to a iSCSI datastore which in on a LUN on the Nas1 box.   On the Veeam Box I run a backup job to iSCSI connection to another LUN on the same nas1.  Also running on the Veeam box is Veeam Office365 which backs up to another LUN on the same nas1.

On the main nas1 I have 3 ReadyDR jobs which run to a second readynas of the same type.  I was looking at trying to replicate the LUN's from Nas1 to Nas2 but couldn't get the, to see each other.  I was initially using ReadyReplicate however this is not supported anymore by Netgear and I cant see the LUN's in ReadyReplicate any how.

My question is what is the best config?  What is the best DR plan if you have the following:

1 VMware box running 2 VM's with a iSCSI connection to a LUN on a Nas box
1 Workstation running Veeam Backup Up and Replication and Veeam Office365
2 x readynas 8TB


Curious what others are doing for backups..... I am about to take a sledgehammer to our current setup, and am curious what other people use and what backup strategies they employ. Cloud is not an option for our firm- our backups to tape can accommodate storage. Currently, we have a daily incremental backup, a weekly full backup that expires after 5 weeks and a monthly backup that never expires and is retained indefinitely. Currently, I have to schedule backups to run every Friday and then watch them all weekend because the backup software randomly marks our full backups as "superseded" (Just started this a month ago), and support was never good from this vendor. We have in-house Exchange, file servers, in-house SQL, an AD domain, and of course file servers. Almost our entire infrastructure is Hyper-V. Total amount of data is about 20TB. I'm more interested in strategies to safeguard the data than an actual product. Should I consider changing the weekly backups to only backing up data that has changed in the past 30 days, and have the monthly be all data? I'll take any suggestions or perspectives on the best way to do this.

We have Always On set up currently by SQL 2016 both HA and DR in cloud platform. Now we plan to do Azure and cloud migration. We want to have Azure environment for HA and keep current cloud for DR. We will still use SQL 2016 enterprise How to do always-on between Azure and cloud platform? or other better solution like Log shipping and mirroring? I mean HA I always-on solution, and DR in log shipping

How to do mirroring AG in HA site to DR site? or can we mirror AG between HA site and DR site?
AWS - two questions pertaining to AWS, or hosted services.  First off, I am trying to get an idea if AWS is a cost effective hosting replacement solution for small business where in house they have anywhere from 1-6 servers, from a cost perspective.  I took a peak at some of the sizing tools for AWS, but not clear on how I would assess throughput, if all daily functions were moved to AWS.  Would you also move all infrastructure servers and clients would authenticate to DCs in the cloud?  I am not sold on this at all, but it makes absolute sense to know the pros and cons.  From a control and cost and security perspective it probably still makes more sense to go with in-house servers for small business, but need to confirm.

Secondly - what is the best way to get familiar with AWS, for small Windows environments, trying to see if it makes sense from a business continuity stand point. For example, currently using Veeam to replicate all VMs to another remote host, so if we lose site A, we can spin everything up within minutes.  Any thoughts on best way, to get a good understanding of AWS?

Thanks guys!!!

We have been using a Seagate STDR5000200 external hard drive for backing up data from our local PCs and servers.

This drive was encrypted with Bitlocker.

While we were backing up data to this external hard drive, the PC, which this drive was plugged into, was turned off accidentally via a switch on the wall.

The next day, this drive was not recognised on the PC it was plugged into and after trying different Windows 10 and 7 PCs, I found that there could be a problem with this drive.

I used Seagates error checking tools and Seagate said from the result that this drive is not functioning properly.

Through the Disk Management on one of the Windows 10 PCs, I did "Rescan disks" and the corrupt drive was listed as "disk 6 unknown".

Right clicking on the disk 6 gave me the options; Initialize disk, Offline, Properties, help.

When I tried "initialising" the disk or clicking "properties", the Disk Management window freezes and eventually the disk 6 disappears from the PC.

Errors I received from this were : data error (cyclic redundancy check) and i/o device error.

Is there a way of formatting this drive?

I am running into this issue on a Xenserver 6.5 Installation.  I'm looking for an expert who can help recover the disks or guide one of our IT guys on a way to investigate it more thoroughly.

Our Xenserver installation is running into the following error:

The problem is when the virtual machine boots it shows this error in console:

« Processor 1: Xen® Virtual CPU

XS Virtual IDE Controller Hard Drive (0MB)
XS Virtual ATAPI-4 CD-Rom/DVD-Rom

iPXE (http://ipxe.org) 00:04.0 C900 PCI2.10 PMM+00100010+00111020 C900

Press F12 for boot menu.

Boot devide: Hard Disk - failure: could not read boot disk

No bootable device.
Powering off in 30 seconds »

Additionally XenCenter storage tab reports the size correctly but shows occupied space is much larger than it should be.  We moved all the remaining working VMS off the machine, and it's still showing the same occupied space size.  Path also does not show up correctly.

I need someone who can diagnose and correct the issue of VDI not available, VDI failed to load immediately.  Someone who we had working on this says that the "identity has been lost"

This is really far beyond my expertise and am hoping that there is some sort of way of saving these VM'sShows that 99% of the drive is used. Other image will show that the VMS are no where near that size including the snapshots.image-2-.png

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.