paulgboul...@aim.com (Paul Gilmartin) writes: > Google is reported to operate its enterprise on tens of thousands of > commodity PCs running Linux. (But there were reports last January > of Google's suffering an attack by a Windows virus.) > > Given Google's pragmatism, and the economic advantages of IBM mainframes > often touted here, I wonder why Google doesn't replace some of those > PCs with a smaller number of z10s or z196s likewise running Linux. > The software conversion costs should be minimal, or at worst within > Google's resources. > > Might it be that there's no practical way to attach those commodity > disks to a z?
re: http://www.garlic.com/~lynn/2010n.html#62 When will MVS be able to use cheap dasd http://www.garlic.com/~lynn/2010n.html#65 When will MVS be able to use cheap dasd http://www.garlic.com/~lynn/2010n.html#75 When will MVS be able to use cheap dasd more like blades ... in rows & rows of high-density racks ... and they assemble (contributing to being 1/3rd cost of getting effectively same thing from brand name vendor) ... along with lots of environmental engineering for optimizing energy & cooling costs. contributes to stories about their mega datacenters near large water supply and inexpensive, reliable power ... old reference: http://www.garlic.com/~lynn/2008n.html#79 Google Data Centers 'The Most Efficient In The World' mainframe price/performance may be getting better ... possibly even approaching brand name blades ... but is still long ways from what google (and some other like ilk) efforts are doing. i had some of this discussion with the executive responsible for the original MVS POSIX/UNIX support ... major motivation/driver for POSIX was to free customers to arbitrarily move to lowest priced (hardware) vendor with minimal conversion/disruption (accelerating hardware commoditization). At the time, MVS POSIX/UNIX support was unlikely to attract any of that customer set; aka major motivation for MVS POSIX/UNIX support was so it could be checked off the list on RFPs (like gov) where it was mandated (I've done projects in the past with the person claiming responsibility for originating gov. COTS as well as the term/acronym). another in the genre of mega datacenters: http://www.garlic.com/~lynn/2010m.html#14 Facebook doubles the size of its first data center random topic drift & factoid ... the facebook address in silicon valley is new bldg. next door to the old "HONE" datacenter bldg (now has different occupant). HONE had originally been created to provide operating system "hands-on" experience to branch SEs int the wake of 23jun69 unbundling announcements, and starting to charge for SE); several cp67 virtual machine datacenters in the US. Then HONE started providing large number of sales&marketing support applications implemented in (CMS) APL (which came to dominate and the original purpose eventually evaporated). In the mid-70s, the various US HONE datacenters (now on vm370 base) were consolidated in silicon valley and the largest single-system-image (mainframe) operation was created (with special enhancements to vm370 Circa 1980, the datacenter was replicated in Dallas and then 3rd in Boulder (with load-balancing and fall-over between the 3centers ... initially motivated by earthquake activity in cal). misc. past posts mentioning hone http://www.garlic.com/~lynn/subtopic.html#hone misc. past posts mentioning 23jun69 unbundling http://www.garlic.com/~lynn/submain.html#unbundle One of my hobbies over the years was providing (& supporting) highly enhanced operating systems for internal datacenters and HONE was a long time "customer" (when they started cloning HONE datacenters around the world ... they even asked me do some of the early installations). last year, there was reference to something similar to the HONE support finally being released for zVM (after 3decades) ... prompting post about http://www.garlic.com/~lynn/2009p.html#43 From The Annals of Release No Software Before Its Time http://www.garlic.com/~lynn/2009p.html#46 From The Annals of Release No Software Before Its Time -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
