Hi, How can I be removed from this mailing list?
Thank you > Date: Wed, 4 Nov 2009 13:51:33 -0500 > From: h...@unity.ncsu.edu > To: vcl-dev@incubator.apache.org > Subject: Re: Fwd: Image Loading Times > > Cliff writes: > > I'm running image loading tests and I am noticing that it > > takes about 10 minutes to load an 8 gig VCL image from the > > storage appliance. > > My experience is from 8 to 18 minutes to load a (bare metal) image > depending on the size of the image. (This is one reason to make images > somewhat single purpose and to strip out what's not needed.) VMware > guest images load considerably faster. > > > We are using a 1G backbone on the system, and some of the > > people backing our test program are wondering if we can speed > > this up a bit since they are uncomfortable with the 10 minute > > load times. > > My understanding is that there are a number of factors at play, the > backbone, the I/O of the disks and the computers, ... > > We treat this as a "cultural" issue, and try to get users to > understand that they either should make an advanced reservation (very > few do :-) or do something else in the 10 or so minutes. > > Since people are already on a computer, most of them can easily spend > the time on their e-mail, web surfing, whatever. (A not-uncommon result > is that they forget about their reservation and it times out before they > check it. :-) > > The one time this wait for loading is really not acceptable is for a > scheduled class - and that's the reason for the Block Reservation which > allows the multiple reservations for the class to be loaded in advance > so they are availble for login at the specified time. Then there is no > load needed, and it takes only about a minute for the login process. > > > Are these speeds OK? What are you all experiencing? > > > > Do we need to drop a few G's on a 10G backbone? > > Somebody else should discuss what good this might do, and perhaps also > discuss the types of disks that can be used and speeds. > -- > --henry schaffer _________________________________________________________________ Find the right PC with Windows 7 and Windows Live. http://www.microsoft.com/Windows/pc-scout/laptop-set-criteria.aspx?cbid=wl&filt=200,2400,10,19,1,3,1,7,50,650,2,12,0,1000&cat=1,2,3,4,5,6&brands=5,6,7,8,9,10,11,12,13,14,15,16&addf=4,5,9&ocid=PID24727::T:WLMTAGL:ON:WL:en-US:WWL_WIN_evergreen2:112009