Today, IBM alerted the world that they had not fallen asleep at the wheel by kicking out an awfully-impressive midrange storage array, the Storwize V7000. This seems like an excellent device, filled with proven engineering borrowed from the successful SAN Volume Controller (SVC) line of storage virtualization products. But closer examination (and IBM's own Tony Pearson) reveal … [Read more...] about IBM’s Storwize V7000: 100% SVC; 0% Storwize
The first storage performance horseman is spindles: If you don't have enough disk units, performance will suffer. I have been laying out storage on enterprise arrays since the dark ages, and one of the first lessons I learned was allocating data to avoid hotspots. I remember spending hours back in the 1990's hunched over custom Excel spreadsheets trying to get my storage layout … [Read more...] about How I Learned to Stop Worrying and Love Storage Automation
Looking around at the enterprise storage landscape, it is plain that certain archetypes rule: Monolithic enterprise arrays, dual-controller modular arrays, standard-sized hard disk units, NAS servers, tape libraries. Are these really the optimal designs for storage in our modern open systems world? On the contrary, I suggest that the enterprise storage world we know was … [Read more...] about Top Ten Innovative Enterprise Storage Hardware Products
Just over three months after releasing Update 2 for ESX 3.5, VMware has released Update 3. That last Update brought major storage changes like VSS support, hot VMFS extension, Storage VMotion across Fibre Channel and iSCSI, and support for 10 Gb Ethernet and 8 Gb FC support. For more information on Update 2, see my article, Storage Fixes in VMware ESX Server 3.5 Update … [Read more...] about Storage Changes in VMware ESX 3.5 Update 3
There is a battle shaping up in the enterprise storage industry. On one side are those who see flash storage as an upgrade for the disk drive, and on the other are those who see it as a cache between the CPU and the drive. It's a fundamental difference of opinion - flash chips can be used either way, and each approach has its unique benefits and drawbacks. The Register did a … [Read more...] about Is Flash A Disk Or A Cache?