Welcome!

@DXWorldExpo Authors: Yeshim Deniz, Pat Romanski, Liz McMillan, Zakia Bouachraoui, Carmen Gonzalez

Blog Feed Post

How to restore a failed Porticor RAID on Windows Server

Don’t panic! Let’s try to analyse the current state of your Porticor disks RAID array and figure out how to fix the “Failed Redundancy” error you are seeing.

First and foremost: can you still access your data? Unless you are dealing with a very unlikely scenario where every one of your RAID disks failed, you should still be able to access the information and as such perform the most crucial step of all – backup your data.

Simple recovery: Open the “Storage” tab under “Computer Management” and see if both of your disks appear as “Online” but with “Failed Redundancy” error, e.g.:

 raidfix13 How to restore a failed Porticor RAID on Windows Server

Right click one of the disks and perform “Reactivate Volume”. This will begin the mirroring and resynchronizing procedure. This is a rather lengthy process and may take a couple of days for especially large disks. Note that the time depends on the size of the disks, and not on the disk space in actual use.

Once this procedure completes, your RAID is back to being fully operational.

Advanced recovery: In case your scenario is not as easily fixable, let’s go over some basics first.

Step 1: Make sure all the relevant Porticor Virtual Appliances which hosted the RAID are online and operational. Look under the “Protected File Systems” category and make sure the disks list “Available for secure use” as their status.

 Selection 001 1024x329 How to restore a failed Porticor RAID on Windows Server

Step 2: Click “use it” and look for a string beginning with “–targetname ign…”, e.g.:

 Selection 004 How to restore a failed Porticor RAID on Windows Server

Step 3: Make sure “iSCSI Initiator” reports this target as connected.

 Selection 003 How to restore a failed Porticor RAID on Windows Server

Step 4: Open the “Storage” tab under “Computer Management” and see if you can spot one of your previous RAID disks as “Foreign”.

 raidfix11 1024x763 How to restore a failed Porticor RAID on Windows Server

Here we see Disk 3 as “Foreign” and Disk 4 as “Online” but with “Failed Redundancy” error. This means that the system is missing crucial information about Disk 3, while Disk 4 is active and available, but no longer has the RAID safeguard as before.

Note: It is important to note that I will keep referring to Disk 3 (the “Foreign” missing disk) and Disk 4 (the “Online” active one) but in your system those numbers may wary.

Step 5: In case you spot one of your disks as “Foreign” perform “Import Foreign Disks” by right clicking it and selecting the appropriate option. This will result in the “Foreign” disk being restored to “Healthy” state and getting a new drive letter. Your “Online” disk should no longer report “Failed Redundancy” and be “Healthy” as well. The ambiguity of missing its RAID mirror is cleared, and they are now both available to us (albeit as different disks).

 raidfix12 1024x789 How to restore a failed Porticor RAID on Windows Server

Unfortunately, in this scenario Disk 3 is no longer a mirror to Disk 4, and we need to rebuild the RAID by creating a fresh mirror to Disk 4. You can use a new disk or even reuse Disk 3. If you choose to do so, make sure you have a recent backup and Disk 3 is available and healthy.

Step 6: Delete the current volume on Disk 3, by right clicking and selecting the appropriate option. Once done, the disk becomes “unallocated”:

 raidfix14 1024x791 How to restore a failed Porticor RAID on Windows Server

Step 7: Now we can recreate our RAID. Right click Disk 4, choose “Add Mirror”, and select Disk 3:

 raidfix15 1024x789 How to restore a failed Porticor RAID on Windows Server

The system will begin with the mirroring and resynchronizing procedure. This is a rather lengthy process and may take a couple of days for especially large disks. Note that the time depends on the size of the disks, and not on the disk space in actual use. The following screenshot is taken mid-process and shows the current disk performance, Disk 4 is being read, and Disk 3 is being written into.

 raidfix16 1024x792 How to restore a failed Porticor RAID on Windows Server

* This guide was tested using Windows Server 2012.

The post How to restore a failed Porticor RAID on Windows Server appeared first on Porticor Cloud Security.

Read the original blog entry...

More Stories By Gilad Parann-Nissany

Gilad Parann-Nissany, Founder and CEO at Porticor is a pioneer of Cloud Computing. He has built SaaS Clouds for medium and small enterprises at SAP (CTO Small Business); contributing to several SAP products and reaching more than 8 million users. Recently he has created a consumer Cloud at G.ho.st - a cloud operating system that delighted hundreds of thousands of users while providing browser-based and mobile access to data, people and a variety of cloud-based applications. He is now CEO of Porticor, a leader in Virtual Privacy and Cloud Security.

DXWorldEXPO Digital Transformation Stories
Dion Hinchcliffe is an internationally recognized digital expert, bestselling book author, frequent keynote speaker, analyst, futurist, and transformation expert based in Washington, DC. He is currently Chief Strategy Officer at the industry-leading digital strategy and online community solutions firm, 7Summits.
Digital Transformation is much more than a buzzword. The radical shift to digital mechanisms for almost every process is evident across all industries and verticals. This is often especially true in financial services, where the legacy environment is many times unable to keep up with the rapidly shifting demands of the consumer. The constant pressure to provide complete, omnichannel delivery of customer-facing solutions to meet both regulatory and customer demands is putting enormous pressure on...
The standardization of container runtimes and images has sparked the creation of an almost overwhelming number of new open source projects that build on and otherwise work with these specifications. Of course, there's Kubernetes, which orchestrates and manages collections of containers. It was one of the first and best-known examples of projects that make containers truly useful for production use. However, more recently, the container ecosystem has truly exploded. A service mesh like Istio addr...
Enterprises are striving to become digital businesses for differentiated innovation and customer-centricity. Traditionally, they focused on digitizing processes and paper workflow. To be a disruptor and compete against new players, they need to gain insight into business data and innovate at scale. Cloud and cognitive technologies can help them leverage hidden data in SAP/ERP systems to fuel their businesses to accelerate digital transformation success.
Digital Transformation: Preparing Cloud & IoT Security for the Age of Artificial Intelligence. As automation and artificial intelligence (AI) power solution development and delivery, many businesses need to build backend cloud capabilities. Well-poised organizations, marketing smart devices with AI and BlockChain capabilities prepare to refine compliance and regulatory capabilities in 2018. Volumes of health, financial, technical and privacy data, along with tightening compliance requirements by...
Charles Araujo is an industry analyst, internationally recognized authority on the Digital Enterprise and author of The Quantum Age of IT: Why Everything You Know About IT is About to Change. As Principal Analyst with Intellyx, he writes, speaks and advises organizations on how to navigate through this time of disruption. He is also the founder of The Institute for Digital Transformation and a sought after keynote speaker. He has been a regular contributor to both InformationWeek and CIO Insight...
Cloud is the motor for innovation and digital transformation. CIOs will run 25% of total application workloads in the cloud by the end of 2018, based on recent Morgan Stanley report. Having the right enterprise cloud strategy in place, often in a multi cloud environment, also helps companies become a more intelligent business. Companies that master this path have something in common: they create a culture of continuous innovation. In his presentation, Dilipkumar will outline the latest resear...
Everyone wants the rainbow - reduced IT costs, scalability, continuity, flexibility, manageability, and innovation. But in order to get to that collaboration rainbow, you need the cloud! In this presentation, we'll cover three areas: First - the rainbow of benefits from cloud collaboration. There are many different reasons why more and more companies and institutions are moving to the cloud. Benefits include: cost savings (reducing on-prem infrastructure, reducing data center foot print, redu...
Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life settlement products to hedge funds and investment banks. After, he co-founded a revenue cycle management company where he learned about Bitcoin and eventually Ethereal. Andrew's role at ConsenSys Enterprise is a mul...
When building large, cloud-based applications that operate at a high scale, it’s important to maintain a high availability and resilience to failures. In order to do that, you must be tolerant of failures, even in light of failures in other areas of your application. “Fly two mistakes high” is an old adage in the radio control airplane hobby. It means, fly high enough so that if you make a mistake, you can continue flying with room to still make mistakes. In his session at 18th Cloud Expo, Lee A...