Posts tagged with: parallel

As promised on Friday, I've taken the plunge and tested applying the latest patch cluster to a fresh Solaris 10u5 installation running 10 zones using the new zones parallel patching feature.To speed things up and to try and prevent any problems I performed the following steps: Jumpstarted the OS (SUNWCuser cluster) Applied patches 125555-04 and 119254-66 (gives us the parallel functionality) Created a basic sparse-root zone without any networking Cloned the zone 9 more times Create an alternate BE using live upgrade so I had two identical boot environments Once I had the machine setup, I booted into single user mode (so all zones will be in the "installed" state) and set off the first cluster installation using the default options (ie no parallel application).I then rebooted into single user mode on the alternate boot environment, set num_proc to 10 and applied the patch cluster again.How's this for a significant difference in time:  Continue reading ►

If you're running a fair few non-global zones on Solaris 10, you'll know full well how painfully slow the patching process is. Well, I'm please to say "not any more".The Zones Parallel Patching feature was officially released on Tuesday and is contained in the latest Solaris 10 patch utilities patch, 119254-66 (SPARC) and 119255-66 (x86).Getting the functionality is simple: just apply the patch as you would any other patch. Taking advantage of it is a different thing.By default the behaviour is as before: NO parallel patching takes place. But it's easily changed by setting "num_proc" to the number of non-global zones to be patched in parallel in the /etc/patch/pdo.conf file.Prior to this feature, each non-global zone was patched sequentially. With this feature invoked, the global zone continues to be patched first, but then the non-global zones can be patched in parallel, leading to significant performance gains in patching operations on zones systems.While the performance gain is dependent on a number of factors, including the number of non-global zones, the number of on-line CPUs, the speed of the system, the I/O configuration of the system, etc., a significant performance gain (up to 300% has been reported) can be expected for patching the non-global zones.  Continue reading ►

Links of interest for 12 May 2009 - 1 Jun 2009:  Continue reading ►

Links of interest for 25 Mar 2009 - 2 Apr 2009:  Continue reading ►