Comments for vFrank

Comment on Truncate vpx_event table in vCenter database by TechMom

TechMom — Wed, 16 Nov 2011 14:10:17 +0000

Thanks Frank. After 3 days of band-aids, searching, adding capacity, this did the trick for me.

Comment on vRAM Entitlements by francis

francis — Wed, 02 Nov 2011 14:18:13 +0000

I have one question, if i have 192GB vRAM entitlement, does it mean my host should have 192GB of actual RAM?

Comment on Using Multiple Network Adaptors for vMotion by Eyal Tamir

Eyal Tamir — Mon, 17 Oct 2011 07:35:45 +0000

Excellent Article, and quite useful as well…many thanks…!

Comment on Using Multiple Network Adaptors for vMotion by Technology Short Take #15 - blog.scottlowe.org - The weblog of an IT pro specializing in virtualization, storage, and servers

Mon, 03 Oct 2011 13:01:53 +0000

[...] Here’s a good walk-through on setting up vMotion across multiple network interfaces. [...]

Comment on Performance: RDM vs. VMFS by WordPress – Weekly Dump (weekly) | ResponsiPaul

WordPress – Weekly Dump (weekly) | ResponsiPaul — Sun, 02 Oct 2011 00:42:23 +0000

[...] vFrank » Performance: RDM vs. VMFS [...]

Comment on Using Multiple Network Adaptors for vMotion by NTPRO.NL - Eric Sloof

NTPRO.NL - Eric Sloof — Sat, 17 Sep 2011 20:29:33 +0000

Video – Running vMotion on multiple–network adaptors…

I’ve created a real cool video which shows you how to configure your vSphere 5 network in order to use multiple network adapters for vMotion. The idea for this video came from fellow VCI and virtualization friend Frank Brix Pedersen. More information a…

Comment on Using Multiple Network Adaptors for vMotion by FrankBrix

FrankBrix — Fri, 16 Sep 2011 16:47:52 +0000

Hi Jason, Thanks.

Yes you can configure it that way! No problem

Comment on Using Multiple Network Adaptors for vMotion by Jason Langer

Jason Langer — Fri, 16 Sep 2011 16:41:13 +0000

Frank,

Good article! Question however. We currently run a single vSwitch that has 2 PG and 2 physical nics. One PG for Mgmt Network, the other PG for vMotion. In this design would it be possible to add a 3rd physical nic and configure fail over as follows:

vmk0 (Mgmt) – vmnic0 Active – vmnic1 and vmnic2 standby
vmk1 (vMotion1) – vmnic1 Active – vmnic2 Standby – vminc0 – Unused
vmk2 (vMotion2) – vminc2 Actvie – vmnic1 Standby – vmnic0 – Unused

Thanks in advance,

-Jason

Comment on Performance: RDM vs. VMFS by FrankBrix

FrankBrix — Fri, 02 Sep 2011 18:10:39 +0000

Hi Ken,

Take a look at the official storage thread on the VMware communities. You can find the IOMETER configuration files there. I don’t have 48 drives backing up my LUNS. Only 12 drives!

Comment on Performance: RDM vs. VMFS by Ken

Ken — Fri, 26 Aug 2011 15:50:26 +0000

ASUN Storagetek 2540 array supports a maximum of 48 drives of eithe SAS or SATA. Assuming 48 15K SAS drives your theoretical IO MAX is right around 10000 and your MB throughput Max should be in the range of 4GB\Sec with 100% sequential read. Based on that, it looks like your test hardware was not able to provide enough IO\Bandwidth to truly determine if there is a performance benefit. I find it surprising that your Real Life MB throughout is around 5MB\Sec. I can get much better than this from a single SATA drive. A breakdown of your IOMETER settings would be helpful to understand these results. Is it a 50/50 split read/write? How random? What size blocks are you using. Are you multi threading your IMOETER with different profiles using several data sets? The thing that does not make any sense is why Virtual RDM outperforms Physical RDM. Do you have a plausable explanation for that result?
Thanks,
Ken