HP Storage Products traditionally have support for RAID 0, RAID 1, RAID 1+0, RAID 5 and now RAID-6 ADG.
Continuing the quest on RAID 6, with my previous post related to HDSâ€™s RAID 6, here is a post about NetAppâ€™s RAID-DP (Double Parity – Enhanced RAID 6).
Hitachi (HDS) has been one of the pioneers in implementing RAID 6 in their storage products. This technology briefing covers HDS’ implementation of RAID 6 and compares it to their RAID 5 implementation.
We think of web apps as what belongs in the â€œcloudâ€. Virtualization is changing this so that both small and enterprise apps are a fit. To me there can be an internal cloud and an external cloud. As virtualization continues to evolve, we will see the lines blur between both.
At the moment, Enterprise Flash disks are all being used as faster spindles; as faster replacements to spinning rust. In the same way that I could remove my laptop/pc drive and replace it with a SSD; I can do it in an array at some extortionate price.I know thereâ€™s been a fair amount of tweaking to get them into the various arrays but it doesnâ€™t appear to be the proverbial rocket science! So can we have some rocket science now?
Mike DiPetrillo from VMware just blogged about a new VMware knowledge base article fosuced on how VMware writes I/O to disk. This is essential reading for any VMware admin, as it deals with each OS’s I/O idiosyncracies.
Capital budgets are pretty tight this year and IT teams all over the globe are being to do more with the same or less. This is good in many ways and hopefully we will overcome some of the profligacy of the past but the responsibility is in our (the end-users) hands, we canâ€™t simply expect the vendors who have encouraged of profligacy in the past to come riding to our rescue.
The announcements are starting to pile up; nothing dramatic yet tho’ but we are probably at the start of the year when most Storage vendors refresh their main product lines and it’s going to be interesting to see the variety…
Today, Brocade announced that it has completed its acquisition of Foundry Networks. This is just the latest move in the strategic game to control the next generation of Ethernet, and possibly all local connectivity, including storage. Although 1 Gb Ethernet, 4 and 8 Gb Fibre Channel, and InfiniBand are all still going strong, the attention of the industry, the pundits, and the prognosticators (myself included) is firmly fixed on enhanced 10 Gb Ethernet. So Brocadeâ€™s move seems especially relevant to the core question of which companies will thrive and which will fail in a 10 Gb world.
Virtualization of IT systems decouples physical infrastructure from logical resources, hiding complexity and enabling new capabilities. However, not all potential benefits of virtualization have meaningful value outside IT circles: Too many of our discussions revolve around the very complexity that virtualization technology should be hiding! True business value is derived from transformed virtual resources in the next-generation data center, not the incremental capacity gains of virtual servers. But how will we get there, and what will this future look like?