btrfs butter gone bad?

I wrote about btrfs 8 years ago.

Since then, it has made its way into several small to mid-end storage solutions (more NAS inclined solutions) including Rockstor, Synology, Terramaster, and Asustor. In the Linux world, SUSE® Linux Enterprise Server and OpenSUSE® use btrfs as the default OS file system. I have decided to revisit btrfs filesystem to give some thoughts about its future.

Have you looked under the hood?

The sad part is not many people look under the hood anymore, especially for the market the btrfs storage vendors are targeting. The small medium businesses just want a storage which is cheap. But cheap comes at a risk where the storage reliability and data integrity are often overlooked.

The technical conversation is secondary and thus the lack of queries for strong enterprise features may be leading btrfs to be complacent in its development.

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4 Digital Workplace Moves after COVID-19

[ Note: This article was published on LinkedIn on March 24, 2020. Here is the link to the original article ]

We live in unprecedented times. Malaysia has been in Movement Control Order (MCO) Day 7, which is basically a controlled lockdown of movements and activities. In many cases, businesses have grounded to a halt, and the landscape has changed forever. The “office” will not always be a premise anymore, and the “meetings” will not be a physical face-to-face conversation to build relationships and trust.

Trust is vital. A couple of weeks ago, I wrote 關係 (Guan Xi), and having to re-invent Trust in a Digital World.

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The impact on organizations and businesses is deep and powerful and so, as we move forward when the COVID-19 pandemic dies down, organizations’ plans in their Digital Transformation strategy will change as well.

Here are 4 technology areas which I think must take precedence for the Digital Workplace in the Digital Transformation strategy.

Software-Defined Wide Area Network (SD-WAN)

Physically connections have been disrupted. Digital connections are on the rise to supplant “networking” in our physical business world, and the pandemic situation just tipped the scale.

Many small medium businesses (SMBs) rely on home broadband, which may be good enough for some. Medium to large organizations have broadband for business. Larger organizations which have deeper pockets might already have MPLS (multiprotocol label switching) or leased line in place. A large portion might have VPN (virtual private network) set up too.

In time, SD-WAN (software-defined wide area network) services should be considered more profoundly. SD-WAN is a more prudent approach that inculcates digital workplace policies such as quality of service (QOS) for critical data connections, allocating network attributes to different data workloads and network traffic, VPN features and most come with enhanced security addendum as well. .

In addition to performance, security and capacity control, SD-WAN implementation helps shape employees’ digital workplace practices but most importantly, redefine the organization’s processes and conditioning employees’ mindsets in the Digital Transformation journey.

 

Video Meetings & Conferencing

The Video Meetings and Conferencing solutions have become the poster child in the present pandemic situation. Zoom, Webex, Microsoft Teams, Skype (it is going away), GoToMeetings and more are dominating the new norm of work. Work from home (WFH) has a totally new meaning now, especially for employees who have been conditioned to work in an “office”.

I had more than 15 Zoom meetings (the free version) last week when the Malaysian MCO started, and Zoom has become a critical part of my business now, and thus, it is time to consider paid solutions like Zoom or Webex as part of an organization’s Digital Workplace plans. These will create the right digital culture for the new Digital Workplace.

Personally I like Uberconference because of their on-hold song. It is sang by their CEO, Alex Cornell. Check out this SoundCloud recording.

File Sharing

Beneath the hallowed halls of video meetings and conferencing, collaboration happens with data shared in files. We have been with file and folders from our C: drives or NAS Home Directories or File Server’s shared drives that these processes are almost second nature to us.

In the face of this COVID-19 pandemic, files and information sharing has become cumbersome. The shared drive is no longer in our network, because we are not in the organization’s LAN and intranet anymore. We are working at home, away from the gigabit network, protected by the organization’s firewall, and was once slaved … err … I mean supported by our IT admins.

The obvious reaction (since you can’t pass thumb drives anymore at present) is to resort to Dropbox, OneDrive, Google Drive and others, and hoping you won’t max out your free capacity. Or email attachments in emails going back and forth, and hoping the mail server will not reject files larger than 10MB.

The fortunate ones have VPN client on their laptops but the network backhaul traffic to the VPN server at the central VPN server, and overloading it to the max. Pretty soon, network connections are dropped, and the performance of file sharing sucks! Big time!

What if your organization is a bank? Or an Oil & Gas company where data protection and data sovereignty dictate the order of the day? All the very-public enterprise file sync and share (EFSS) like Dropbox or OneDrive or Google Drive totally violate the laws of the land, and your organization may be crippled by the inability to do work. After all, files and folders are like the peanut-butter-jelly or the nasi lemak-teh tarik (coconut rice & pulled tea Malaysian breakfast) combo of work. You can’t live without files and folders.

The thoughts of having a PRIVATE on-premises EFSS solution in your organization’s Digital Transformation strategy should be moved from the KIV (keep in view) tray to a defined project in the Digital Transformation programme.

At Katana Logic, we work with Easishare, and it is worth having a serious plan about building your own private file share and sync solution as part of the Digital Workplace.

Security

In such unprecedented times, where our attention is diverted, cybersecurity threats are at its highest. Financial institutions in Malaysia have already been summoned by Malaysia Bank Negara central bank to build the industry’s expectations and confidence through the RMiT framework. Conversations with some end users and IT suppliers to Malaysian banks and other financial institutions unfortunately, revealed the typical lackadaisical attitude to fortify cyber resiliency practices within these organizations. I would presume the importance of cybersecurity and cyber resiliency practices would take a even further back seat with small medium businesses.

On a pessimistic note, ransomware and DDOS (distributed denial-of-service) have been on the rise, and taking advantage of this pandemic situation. NAS, the network attached storage that serves the organization shared files and folders has become ransomware’s favourite target as I have wrote in my blog.

But it does not have to be expensive affair with cybersecurity. Applying a consistent periodical password change, educating employees about phishing emails, using a simple but free port scanners to look at open TCP/UDP ports can be invaluable for small medium businesses. Subscribing to penetration testing (pentest) services at a regular frequency is immensely helpful as well.

In larger organizations, cyber resiliency is more holistic. Putting in layers for defense in depth, CIA (confidentiality, integrity, availability) triad, AAA (authentication, authorization, audit) pro-active measures are all part of the cybersecurity framework. These holistic practices must effect change in people and the processes of how data and things are shared, used, protected and recovered in the whole scheme of things.

Thus organizations must be vigilant and do their due diligence. We must never bat any eye to fortify cyber security and cyber resiliency in the Digital Workplace.

Parting thoughts

We are at our most vulnerable stage of our lifetime but it is almost the best time to understand what is critical to our business. This pandemic is helping to identify the right priorities for Work.

At any level, regardless, organizations have to use the advantage of this COVID-19 situation to assess how it has impacted business. It must look at what worked and what did not in their digital transformation journey so far, and change the parts that were not effective.

I look at the 4 areas of technology that I felt it could make a difference and I am sure there are many more areas to address. So, use this pessimistic times and turn it into an optimistic one when we are back to normalcy. The Digital Workplace has changed forever, and for the better too.

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NetApp double stitching Data Fabric

Is NetApp® Data Fabric breaking at the seams that it chose to acquire Talon Storage a few weeks ago?

It was a surprise move and the first thing that came to my mind was “Who is Talon Storage?” I have seen that name appeared in Tech Target and CRN last year but never took the time to go in depth about their technology. I took a quick check of their FAST™ software technology with the video below:

It had the reminiscence of Andrew File System, something I worked on briefly in the 90s and WAFS (Wide Area File System), a technology buzz word in the early to mid-2000s led by Tacit Networks, a company I almost joined with a fellow NetApp-ian back then. WAFS DNA appeared ingrained in Talon Storage, after finding out that Talon’s CEO and Founder, Shirish Phatak, was the architect of Tacit Networks 20 years ago.

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Dell EMC Isilon is an Emmy winner!

[ Disclosure: I was invited by GestaltIT as a delegate to their Storage Field Day 19 event from Jan 22-24, 2020 in the Silicon Valley USA. My expenses, travel, accommodation and conference fees were covered by GestaltIT, the organizer and I was not obligated to blog or promote the vendors’ technologies presented at this event. The content of this blog is of my own opinions and views ]

And the Emmy® goes to …

Yes, the Emmy® goes to Dell EMC Isilon! It was indeed a well deserved accolade and an honour!

Dell EMC Isilon had just won the Technology & Engineering Emmy® Awards a week before Storage Field Day 19, for their outstanding pioneering work on the NAS platform tiering technology of media and broadcasting content according to business value.

A lasting true clustered NAS

This is not a blog to praise Isilon but one that instill respect to a real true clustered, scale-out file system. I have known of OneFS for a long time, but never really took the opportunity to really put my hands on it since 2006 (there is a story). So here is a look at history …

Back in early to mid-2000, there was a lot of talks about large scale NAS. There were several players in the nascent scaling NAS market. NetApp was the filer king, with several competitors such as Polyserve, Ibrix, Spinnaker, Panasas and the young upstart Isilon. There were also Procom, BlueArc and NetApp’s predecessor Auspex. By the second half of the 2000 decade, the market consolidated and most of these NAS players were acquired.

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StorageGRID gets gritty

[ Disclosure: I was invited by GestaltIT as a delegate to their Storage Field Day 19 event from Jan 22-24, 2020 in the Silicon Valley USA. My expenses, travel, accommodation and conference fees were covered by GestaltIT, the organizer and I was not obligated to blog or promote the vendors’ technologies presented at the event. The content of this blog is of my own opinions and views ]

NetApp® presented StorageGRID® Webscale (SGWS) at Storage Field Day 19 last month. It was timely when the general purpose object storage market, in my humble opinion, was getting disillusioned and almost about to deprive itself of the value of what it was supposed to be.

Cheap and deep“, “Race to Zero” were some of the less storied calls I have come across when discussing about object storage, and it was really de-valuing the merits of object storage as vendors touted their superficial glory of being in the IDC Marketscape for Object-based Storage 2019.

Almost every single conversation I had in the past 3 years was either explaining what object storage is or “That is cheap storage right?

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Tiger Bridge extending NTFS to the cloud

[Disclosure: I was invited by GestaltIT as a delegate to their Storage Field Day 19 event from Jan 22-24, 2020 in the Silicon Valley USA. My expenses, travel, accommodation and conference fees were covered by GestaltIT, the organizer and I was not obligated to blog or promote the vendors’ technologies to be presented at this event. The content of this blog is of my own opinions and views]

The NTFS File System has been around for more than 3 decades. It has been the most important piece of the Microsoft Windows universe, although Microsoft is already replacing it with ReFS (Resilient File System) since Windows Server 2012. Despite best efforts from Microsoft, issues with ReFS remain and thus, NTFS is still the most reliable and go-to file system in Windows.

First reaction to Tiger Technology

When Tiger Technology was first announced as a sponsor to Storage Field Day 19, I was excited of the company with such a cool name. Soon after, I realized that I have encountered the name before in the media and entertainment space.


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ZFS Replication and Recovery with FreeNAS

We get requests to recover data from a secondary platform all the time. RPO (recovery point objective) of 30 minutes can be challenging to small to medium sized companies, especially if there is an SLA (service level agreement) to meet.

This week, my team and I took some time to create a FreeNAS replication demo for a potential client. I thought I document the whole thing about ZFS replication, the key steps to set it up and show how recovery is done.

ZFS Snapshots

ZFS replication relies on periodic ZFS snapshots. ZFS snapshot is an inherent feature from the ZFS file system, and often used as a point-in-time copy of the existing ZFS file system tree in memory. Once a snapshot has been triggered, either manually or on schedule (periodic), the file system tree and its metadata in the memory are committed to disk to ensure an updated and consistent state of the file system at all times.

To start, a running snapshot policy on a schedule must be in place. This snapshot policy can be on a specific dataset or zvol, or even the entire zpool. Yeah, I am using quite a few ZFS terminology here – zpool, zvol, dataset. You can read more about each of the structures and more here.

Once the ZFS replication task has been setup, every snapshot occurred in the snapshot policy is automatically duplicated and copied to the target ZFS dataset. Usually, the target ZFS dataset is on a secondary FreeNAS storage server, serving as a disaster recovery platform. Sending and receiving data in the snapshots rely on SSH service.

This is the network diagram explaining the FreeNAS ZFS replication setup.

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Commvault coming all together

[Disclosure: I was invited by Commvault as a Media person and Social Ambassador to their Commvault GO 2019 Conference and also a Tech Field Day eXtra delegate from Oct 13-17, 2019 in the Denver CO, USA. My expenses, travel, accommodation and conference fees were covered by Commvault, the organizer and I was not obligated to blog or promote their technologies presented at this event. The content of this blog is of my own opinions and views]

This trip to the Commvault GO conference was pretty much a mission to find answers to their Hedvig acquisition just a month ago. It was an unprecedented move for Commvault and I, as an industry observer and pundit, took the news positively. I wrote in my blog about Commvault’s big bet and I liked their boldness in their approach.

But the news did not bode well back here in Malaysia. The local technology news portal, Data Storage Asean picked up the news in a rather unconvinced way. 2 long time Commvault partners I spoke to were obviously unhappy because the acquisition made little sense to them on the back of closing of the Commvault Malaysia office just weeks before this with more unsettling rumours of the Commvault team in Asia Pacific. The broken trust and the fear of what the future held for the Commvault customers in Malaysia and in the region were riding along with me on this trip.

But I have seen the beginning of the Commvault transformation from the Commvault GO conferences I have attended since 2017. This is my 3rd Commvault GO and I ended Day 1 with good vibes.

Here were some of my highlights in the first day. Continue reading

Data Renaissance in Oil and Gas

The Oil and Gas industry, especially in the upstream Exploration and Production (EP) sector, has been enjoying a renewed vigour in the past few years. I have kept in touch with the developments of the EP side because I always have a soft spot for the industry. I have engaged in infrastructure and solutions in the petrotechnical side in my days at Sun Microsystems back in the late 90s. The engagements with EP intensified in my first stint at NetApp, wearing the regional Oil & Gas consulting engineer here in South Asia for almost 6 years. Then, with Interica in 2014, I was dealing with subsurface data and seismic interpretation technology. EP is certainly an exciting sector to cover because there are so much technical work involved and the technologies, especially the non-IT, are breath taking.

I have been an annual registrant to the Digital Energy Journal events since 2013, except last year, and I have always enjoyed their newsletter. This week I attended Digital Energy 2-day conference again, and I was taken in by the exciting times in EP. Here are a few of my views and trends observation in this data renaissance.

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Commvault big bet

I woke up at 2.59am in the morning of Sept 5th morning, a bit discombobulated and quickly jumped into the Commvault call. The damn alarm rang and I slept through it, but I got up just in time for the 3am call.

As I was going through the motion of getting onto UberConference, organized by GestaltIT, I was already sensing something big. In the call, Commvault was acquiring Hedvig and it hit me. My drowsy self centered to the big news. And I saw a few guys from Veritas and Cohesity on my social media group making gestures about the acquisition.

I spent the rest of the week thinking about the acquisition. What is good? What is bad? How is Commvault going to move forward? This is at pressing against the stark background from the rumour mill here in South Asia, just a week before this acquisition news, where I heard that the entire Commvault teams in Malaysia and Asia Pacific were released. I couldn’t confirm the news in Asia Pacific, but the source of the news coming from Malaysia was strong and a reliable one.

What is good?

It is a big win for Hedvig. Nestled among several scale-out primary storage vendors and little competitive differentiation, this Commvault acquisition is Hedvig’s pay day.

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