Comments on: Impact of host local VM swap on HA and DRS

By: ESXi内存分配机制_新安威网

ESXi内存分配机制_新安威网 — Sat, 05 May 2012 13:28:18 +0000

[...] p31 关于host-local swap的更多精妙解释，强烈推荐您读以下Frank的这篇文章：http://frankdenneman.nl/2010/02/impact-of-host-local-vm-swap-on-ha-and-drs/ 【Memory Shares】Memory [...]

By: VMware ESX 4.1

VMware ESX 4.1 — Fri, 04 May 2012 21:08:07 +0000

[...] it would have been a lot easier, because the swap files would have had space to be recreated. Impact of host local VM swap on HA and DRS | frankdenneman.nl So reading around the subject. My comment would be when building or designing vm hosts local [...]

By: Satnam Singh

Satnam Singh — Mon, 23 Jan 2012 02:23:05 +0000

Great Article, Cheers.

By: pranav

pranav — Wed, 03 Aug 2011 17:10:52 +0000

Very nice article Frank, really helpful.

By: 虚拟化百科 | Virtualization Pedia » VMware内存分配初探

虚拟化百科 | Virtualization Pedia » VMware内存分配初探 — Fri, 02 Apr 2010 18:47:18 +0000

[...] 关于host-local swap的更多精妙解释，强烈推荐您读以下Frank的这篇文章：http://frankdenneman.nl/2010/02/impact-of-host-local-vm-swap-on-ha-and-drs/ [...]

By: VMware VMware内存分配初探 | Release Yourself

VMware VMware内存分配初探 | Release Yourself — Tue, 30 Mar 2010 01:22:29 +0000

[...] p31 关于host-local swap的更多精妙解释，强烈推荐您读以下Frank的这篇文章：http://frankdenneman.nl/2010/02/impact-of-host-local-vm-swap-on-ha-and-drs/ 【Memory [...]

By: Re: Memory Compression | blindpete.com

Re: Memory Compression | blindpete.com — Thu, 04 Mar 2010 13:10:01 +0000

[...] most definitely improve the speed when swapping occurs. However as Frank already described in his article there is an associated [...]

By: Shannon

Shannon — Mon, 22 Feb 2010 19:10:11 +0000

We’ve been running VMWare since 2.5 and I didn’t like when VMWare forced us to use SAN storage in 3.0 (since changed I realize). In my environment SAN storage is expensive and if you look about the amount that would be taken if all my swaps were moved to it would be in the TBs. All my ESX servers have a pair of 146 GB drives mirrored (with a few with 300s). As of our current servers (soon to change) the most RAM I have is 128 GB. If you subtract the ESX layer that leaves enough space on that local drive for a VMFS partition to hold a lot of swap space. I load our ESX servers as to be able to take an entire site down and still run all of production with very little to no over commit on RAM. I haven’t, as of yet, seen a reason to move all that useless space to the SAN, mirrored or not.

Now, as we start to eval going to ESXi and thus the removal of need for local storage things change, but at least in our environment to date I can’t justify spending the extra $$ on SAN storage.

As has been said, it goes back to knowing your environment, your needs and ramifications of your design decisions. Like most everything in this world one size does not fit all.

By: MarkVerhagen

MarkVerhagen — Sun, 21 Feb 2010 16:47:15 +0000

Excellent info and banter, thanks Frank!

By: Top 5 Planet V12n blog posts week 07 | VMvisor

Top 5 Planet V12n blog posts week 07 | VMvisor — Sun, 21 Feb 2010 11:02:49 +0000

[...] Denneman – Impact of host local VM swap on HA and DRSThis rule also applies when migrating a VM configured with a host-local VM swap file as the swap [...]