Reading a post from Hans DeLeenheer (VEEAM) which ramped up quite a bit including responses from Calvin Zito (HP), Alex McDonald (NetApp) and Nigel Poulton. The discussion started on a comment that XIO had \”special\” firmware which improved IO performance. Immediately the term \”short-stroking\” came up which leads to believe X-IO is cheap-skating on their technologies. I […]
Short stroking disk drives to improve performance Read More »
Linux has been pretty good with and for storage. The sheer volume of options w.r.t. filesystems, volume-managers, access methods (FC, iSCSI, NFS, DAS etc), multi-pathing but also the very broad support of the hardware ecosystem is something to be proud of. The issue with storage support is that you ALWAYS have to maintain a massive
Why partition alignment on disk matters (Linux) Read More »
In the previous 2 blog-posts we looked at some areas why a fibre-channel fabric still might have problems even with all redundancy options available and MPIO checking for link failures etc etc. The challenge is to identify any problematic port and act upon indications that certain problems might be apparent on a link. So how
One rotten apple spoils the bunch – 3 Read More »
On many occasions I\’ve seen posts from storage administrator who mapped some luns to hosts and on the first use the entire pool got whacked with all bells and whistles going off. (Yes, we can control bells and whistles.:-)) The administrator did nothing wrong however he should have communicated with the server admin what the
Help, my Thin Provisioning is not working Read More »
What is the first question vendors get (or at least used to get) when a customer (non-technical) calls???I\’ll spare you the guesswork: \”What does a TB of disks do at your place ??\”. Usually I\’ll goofle around for the cheapest disk at a local PC store and say \”Well Sir, that would be about 80
Why disk drives have become slower over the years Read More »
Maybe you found the previous article a bit hypothetical and is not substantiated by facts but merely some guestimations? To put some beef into the equation I\’ll try to substantiate it with some simple calculations. Read on. As shown in Cornell Uni\’s report the expected amount of data generated will reach 1700 exabytes in 2011
The end of spinning disks (part 2) Read More »
Did you ever wonder how long this industry will rely on spinning disk? I do and I think that within 5 to 10/15 years we\’ve reached the end of the abilities of disks to keep up with demand and data growth ratios. A report from Andrey V Makarenko of Cornell University estimates that around 1700
The end of spinning disks Read More »
