Data Retention for Dummies

Good post by Chris Mellor (thank you) over at El Reg

All is confusion. The old certainties are gone. New certainties just don’t exist. The shifting shapes, players, products and technologies in the storage landscape are seen through fog. How the heck does everything fit together?

After four days in Silicon Valley meeting startups the bewilderment ratio us even higher. It’s like Dragons’ Den, where each new player is shinier and brighter than the previous one, becomes your favourite but then, as sure as eggs are eggs, will be eclipsed by the next one.

Read on here

 

How often do you upgrade your storage array software?

Good post by Alex Galbraith (thank you)

Upgrades are scary!

Having managed and implemented upgrades on highly available systems such as the old Sun StorageTech line of rebranded HDS USP/VSP arrays back in the day, I can tell you that we did not take upgrades lightly!

Unless there was a very compelling reason for an upgrade, the line taken was always “if it ain’t broke, don’t fix it”, but then we were looking after storage in a massively high security environment where even minor changes were taken very seriously indeed.

Read on here

The paradigm shift in enterprise computing 10 years from now.

Good post by Erwin van Londen (thank you)

The way businesses arrange their IT infrastructure is based based upon 3 things: Compute, Networks and Storage. Two of these have had a remarkable shift in the way they operate over the last decade. The keyword here was virtualization. Both Compute and Networking have been torn apart and put together in a totally different way we were used to from the 70 to the early 2000’s.

Read on here

Next-generation storage for the software-defined datacenter

Post by Siddhartha Roy and Paul Luber (thank you)

Storage is a foundational component of the datacenter fabric and is an intrinsic part of Microsoft’s software-defined datacenter solution.  Our storage investments are centered on bringing value to customers in terms of increasing cloud scale, availability, performance, and reliability, while lowering acquisition and operational costs – with Windows Server, and now also with Microsoft Azure Stack.

Read on here

The reverse wars – DAS vs NAS vs SAN

Post by Chin-Fah Heoh (thank you)

It has been quite an interesting 2 decades.

In the beginning (starting in the early to mid-90s), SAN (Storage Area Network) was the dominant architecture. DAS (Direct Attached Storage) was on the wane as the channel-like throughput of Fibre Channel protocol coupled by the million-device addressing of FC obliterated parallel SCSI, which was only able to handle 16 devices and throughput up to 80 (later on 160 and 320) MB/sec.

Read on here

New X-IO ISE 800 All-Flash Array

Good post by Chris Mellor (thank you) over at El Reg

X-IO’s five-year warranty, maintenance-free sealed disk and disk+flash arrays have a new brother: the all-flash ISE. It’s sprinted right to the top of the SPC-1 price/performance benchmark charts.

The ISE 800 comes in a standard 3U X-IO enclosure and uses X-IO’s Gen 3 architecture, which first appeared in the ISE 780 in January. There are three models:

  • 820 – to 6.4TB pre-RAID capacity (2.7TB RAID 10, 4.3TB RAID 5)
  • 850 – to 25.6TB pre-RAID capacity (11.4TB RAID 10, 18.3TB RAID 5)
  • 860 – to 51.2TB pre-RAID capacity (22.9TB RAID 10, 36.6TB RAID 5)

All provide a max of 400,000 IOPS, or 260,000 IOPS with what is called an OLTP workload. There is up to 5GB/sec of bandwidth available.

Read on here

EMC implies that SANs may not be so great for hosting virtual machines after all

Good Post by Steve Kaplan (thank you)

The inventor of the storage array, EMC, has indicated that a hardware-designed architecture is perhaps no longer the best solution for hosting a virtualized datacenter. The Register reported today that EMC will utilize ScaleIO as a VMware kernel module.

Read on here

Speed mismatch is the death-trap for shared storage

Good post by Erwin van Londen (thank you)

I’ve been focusing on the implications of physical issues a lot in my posts over the last ~2 years. What I haven’t touched on is logical performance boundaries which also cause extreme grief in many storage infrastructures which lead to performance problems, IO errors, data-corruption  and other nasty stuff you do not want to see in your storage network.

Read on here

Microsoft’s Scale-Out File Server Overcomes SAN Cloud Barriers

Good post by Paul Schnackenburg (thank you)

There are no SANs in the cloud because the venerable storage technology just doesn’t scale to that level. But there are ways around it, and Microsoft shops should start with the company’s Scale-Out File Server.

There’s a revolution going on in storage. Once the domain of boring but dependable storage-area network (SAN) arrays, there’s now a plethora of choice, including all flash storage (with varying different underlying technology) and server-message block (SMB)-based storage.

Read on here

Catching up on Fibre Channel with HP and Brocade

Good post by Calvin Zito (thank you)

One of the conversations I had at the recent Nth Symposium was with AJ Casamento from Brocade.  HP and Brocade have partnered in storage networking for a long time – probably about as long as AJ and I have worked in the industry!

Here’s a summary of what AJ and I discussed:

  • Looking deeper into the storage network stack with Fabric Vision
  • 16Gb Fibre Channel – ideal for low latency and all-flash
  • Optical infrastructure with Clearlink
  • When is the right time to look at Gen5 16Gb FC?

Read on here